Overall Green Tropical Cyclone for ATSANI-26 Off-shore from 22 Aug 2026 12:00 UTC to 25 Aug 2026 06:00 UTC

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Overall Green Tropical Cyclone for ATSANI-26

Off-shore

Global Telecommunication Service

GTS (Global Telecommunication Service) is the official Warning and Alerting channel by the World Meteorological Organization (WMO) adopted by several Warning Organizations. As soon as a new GTS message regarding Tropical Cyclones(WT) or Tsunami(WE) the messages are processed and possibly assigned to the specific event. When a new GTS message is present an new tab in the specific event report page is present.The presence of a GTS message is shown in the homepage with a dedicated icon.

Click on the messages list to visualize on the right the detailed text.

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

25/08 09:28 WTPQ33PGUM250927

25/08 03:04 WTPQ33PGUM250302

25/08 02:28 WTPQ33RJTD250000

25/08 01:41 WTPN33PGTW250300

25/08 01:15 WTPQ53RJTD250000

24/08 22:27 WTPQ53RJTD242100

24/08 21:12 WTPQ33PGUM242110

24/08 20:19 WTPQ33RJTD241800

24/08 20:01 WTPN33PGTW242100

24/08 19:23 WTJP24RJTD241800

24/08 19:22 WTPQ53RJTD241800

24/08 16:19 WTPQ53RJTD241500

24/08 15:11 WTPQ33PGUM241508

24/08 14:22 WTPN33PGTW241500

24/08 14:17 WTPQ33RJTD241200

24/08 13:27 WTJP24RJTD241200

24/08 13:27 WTPQ53RJTD241200

24/08 10:16 WTPQ53RJTD240900

24/08 09:06 WTPQ33PGUM240905

24/08 07:56 WTPQ33RJTD240600

24/08 07:47 WTPN33PGTW240900

24/08 07:15 WTJP24RJTD240600

24/08 07:15 WTPQ53RJTD240600

24/08 04:26 WTPQ53RJTD240300

24/08 03:11 WTPQ33PGUM240309

24/08 02:24 WTPN33PGTW240300

24/08 02:10 WTPQ33RJTD240000

24/08 01:23 WTJP24RJTD240000

24/08 01:22 WTPQ53RJTD240000

23/08 22:16 WTPQ33PGUM232214

23/08 20:32 WTPN33PGTW232100

23/08 15:06 WTPQ33PGUM231504

23/08 13:50 WTPN33PGTW231500

23/08 09:15 WTPQ33PGUM230913

23/08 03:11 WTPQ33PGUM230309

22/08 21:54 WTPQ33PGUM222152

22/08 20:33 WTPN33PGTW222100

22/08 15:03 WTPQ33PGUM221501

Original Message :

WTPQ33 PGUM 250927
TCPPQ3

BULLETIN
TROPICAL DEPRESSION ATSANI (19W) ADVISORY NUMBER 12
NATIONAL WEATHER SERVICE TIYAN GU WP192026
727 PM CHST TUE AUG 25 2026

...TROPICAL DEPRESSION ATSANI IS DISSIPATING WELL NORTHWEST OF THE
MARIANAS...

CHANGES WITH THIS ADVISORY
--------------------------
TROPICAL DEPRESSION IS DISSIPATING AS A TROPICAL CYCLONE.

WATCHES AND WARNINGS
--------------------
NONE.

SUMMARY OF 700 PM CHST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...21.0N 137.0E

ABOUT 585 MILES WEST-NORTHWEST OF AGRIHAN
ABOUT 605 MILES WEST-NORTHWEST OF PAGAN
ABOUT 620 MILES WEST-NORTHWEST OF ALAMAGAN
ABOUT 700 MILES NORTHWEST OF TINIAN
ABOUT 700 MILES NORTHWEST OF SAIPAN
ABOUT 720 MILES NORTHWEST OF ROTA
ABOUT 730 MILES NORTHWEST OF GUAM

MAXIMUM SUSTAINED WINDS...30 MPH
PRESENT MOVEMENT...NORTH-NORTHWEST...330 DEGREES AT 18 MPH

DISCUSSION AND OUTLOOK
----------------------
AT 700 PM CHST...0900 UTC...THE CENTER OF TROPICAL DEPRESSION
ATSANI WAS LOCATED NEAR LATITUDE 21.0 DEGREES NORTH AND LONGITUDE
137.0 DEGREES EAST. ATSANI IS MOVING NORTH-NORTHWEST AT 18 MPH.
IT IS EXPECTED TO MAKE A SLIGHT TURN TOWARD THE NORTH WITH A
DRAMATIC DECREASE IN FORWARD SPEED THROUGH WEDNESDAY. THE JOINT
TYPHOON WARNING CENTER HAS ISSUED A FINAL WARNING ON TD ATSANI.
WE WILL CONTINUE TO MONITOR TD ATSANI FOR POTENTIAL REGENERATION
WHILE IT REMAINS WITHIN OUR AREA OF RESPONSIBILITY (AOR).

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO 30 MPH. ATSANI IS
FORECAST TO WEAKEN THROUGH WEDNESDAY.

NEXT ADVISORY
-------------
THIS WILL BE THE LAST ADVISORY ISSUED BY THE NATIONAL WEATHER
SERVICE ON ATSANI UNLESS EVIDENCE OF REGENERATION OCCURS WITHIN OUR
AREA OF RESPONSIBILITY (AOR).

$$

WILLIAMS=

Original Message :

WTPQ33 PGUM 250302
TCPPQ3

BULLETIN
Tropical Depression Atsani (19W) Advisory Number 11
National Weather Service Tiyan GU WP192026
102 PM ChST Tue Aug 25 2026

...TROPICAL DEPRESSION ATSANI CONTINUES MOVING NORTH...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 PM CHST...0300 UTC...INFORMATION
-----------------------------------------------
Location...19.7N 137.9E

About 605 miles west-northwest of Saipan
About 625 miles northwest of Guam
About 705 miles north of Yap
About 885 miles north-northeast of Koror

Maximum sustained winds...35 mph
Present movement...north...355 degrees at 10 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 PM CHST...0300 UTC...the center of Tropical Depression
Atsani was located near Latitude 19.7 degrees North and Longitude
137.9 degrees East. Atsani is moving north at 10 mph. It is
expected to make a turn toward the northwest with a slight
increase in forward speed through Wednesday.

Maximum sustained winds remain at 35 mph. Atsani is forecast to
weaken through tonight.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 PM ChST.

$$

JAW

Original Message :

WTPQ33 RJTD 250000
RSMC TROPICAL CYCLONE PROGNOSTIC REASONING
REASONING NO.11 FOR TD LOCATED AT 19N 138E
1.GENERAL COMMENTS
ATSANI (2621) HAS WEAKENED TO TD INTENSITY. THE TD IS LOCATED AT
19N, 138E. INFORMATION ON THE CURRENT POSITION IS BASED ON
ANIMATED MSI AND SURFACE OBSERVATIONS. CENTRAL PRESSURE IS 1000HPA
AND MAXIMUM SUSTAINED WINDS ARE LESS THAN 30KNOTS. THE SYSTEM IS
IN A NEUTRAL ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF
HIGH SSTS, HIGH TCHP AND STRONG VWS. HOWEVER, THE LIMITED FIRMNESS
OF ITS STRUCTURE HAS CAUSED IT TO WEAKEN OVER THE LAST SIX HOURS.
INFORMATION ON THE CURRENT INTENSITY IS BASED ON DVORAK INTENSITY
ANALYSES AND SURFACE WINDS DATA ESTIMATED FROM SATELLITE
SCATTEROMETERS.
2.SYNOPTIC SITUATION
THE SYSTEM IS MOVING NORTH-NORTHEASTWARD DUE TO INTERACTION WITH A
NEARBY TROPICAL CYCLONE. ANIMATED MSI SHOWS THE SEPARATION OF
ACTIVE CONVECTIVE CLOUD CLUSTERS FROM THE CSC. DMSP-F17/SSMIS 89
GHZ MICROWAVE IMAGERY SHOWS THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD
CLUSTERS AROUND THE CSC.
3.TRACK FORECAST
SEE THE MARINE WARNING (WWJP27 RJTD).
4.INTENSITY FORECAST
SEE THE MARINE WARNING (WWJP27 RJTD).
5.REMARKS
THIS WILL BE THE FINAL PROGNOSTIC REASONING FOR THE SYSTEM.
=

Original Message :

WTPN33 PGTW 250300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 011//
RMKS/
1. TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 011
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
250000Z --- NEAR 19.2N 138.2E
MOVEMENT PAST SIX HOURS - 355 DEGREES AT 09 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 19.2N 138.2E
---
FORECASTS:
12 HRS, VALID AT:
251200Z --- 21.1N 137.0E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 24 HR POSIT: 325 DEG/ 11 KTS
---
24 HRS, VALID AT:
260000Z --- 22.8N 135.6E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
250300Z POSITION NEAR 19.7N 137.9E.
25AUG26. TROPICAL DEPRESSION 19W (ATSANI), LOCATED APPROXIMATELY
378 NM SOUTH-SOUTHWEST OF IWO TO, HAS TRACKED NORTHWARD AT 09
KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 250000Z IS 1004 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 250000Z IS 12 FEET. NEXT WARNINGS AT
250900Z, 251500Z AND 252100Z.
REFER TO TYPHOON 17W (SAUDEL) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.
// END PART 01 //

Original Message :

WTPQ53 RJTD 250000
RSMC TROPICAL CYCLONE ADVISORY
NAME TD DOWNGRADED FROM TS 2621 ATSANI (2621)
ANALYSIS
PSTN 250000UTC 19N 138E
MOVE NNE 10KT
PRES 1000HPA =

Original Message :

WTPQ53 RJTD 242100
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 242100UTC 18.4N 138.1E FAIR
MOVE N 10KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 90NM
FORECAST
12HF 250900UTC 20.6N 137.2E 40NM 70% TROPICAL DEPRESSION
24HF 252100UTC 22.6N 135.7E 57NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ33 PGUM 242110
TCPPQ3

BULLETIN
Tropical Depression Atsani (19W) Advisory Number 10
National Weather Service Tiyan GU WP192026
710 AM ChST Tue Aug 25 2026

...TROPICAL DEPRESSION ATSANI MOVING NORTH...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION
-----------------------------------------------
Location...18.9N 138.0E

About 575 miles west-northwest of Saipan
About 585 miles northwest of Guam
About 650 miles north of Yap
About 830 miles north-northeast of Koror

Maximum sustained winds...35 mph
Present movement...north...360 degrees at 18 mph

DISCUSSION AND OUTLOOK
----------------------
At 700 AM CHST...2100 UTC...the center of Tropical Depression Atsani
was located near Latitude 18.9 degrees North and Longitude 138.0
degrees East this morning. Atsani is moving north at 18 mph. It is
expected to make a slight turn toward the north-northwest with a
decrease in forward speed through Wednesday.

Maximum sustained winds remain at 35 mph. Atsani is forecast to
maintain this intensity through tonight.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 200 PM ChST.

$$

JAW

Original Message :

WTPQ33 RJTD 241800
RSMC TROPICAL CYCLONE PROGNOSTIC REASONING
REASONING NO.10 FOR TS 2621 ATSANI (2621)
1.GENERAL COMMENTS
TS ATSANI IS LOCATED AT 18.1N, 137.8E. INFORMATION ON THE CURRENT
POSITION IS BASED ON ANIMATED MSI AND SURFACE OBSERVATIONS.
POSITIONAL ACCURACY IS FAIR. CENTRAL PRESSURE IS 998HPA AND
MAXIMUM SUSTAINED WINDS NEAR THE CENTER ARE 35KNOTS. THE SYSTEM IS
IN A NEUTRAL ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF
HIGH SSTS, HIGH TCHP AND STRONG VWS. THIS HAS CAUSED THE SYSTEM TO
MAINTAIN ITS INTENSITY OVER THE LAST SIX HOURS. INFORMATION ON THE
CURRENT INTENSITY IS BASED ON DVORAK INTENSITY ANALYSES AND
SURFACE WINDS DATA ESTIMATED FROM SATELLITE SCATTEROMETERS.
2.SYNOPTIC SITUATION
THE SYSTEM IS MOVING NORTHWARD DUE TO INTERACTION WITH A NEARBY
TROPICAL CYCLONE. ANIMATED MSI SHOWS THE SEPARATION OF ACTIVE
CONVECTIVE CLOUD CLUSTERS FROM THE CSC. GOSAT-GW/AMSR3 89 GHZ
MICROWAVE IMAGERY SHOWS THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD
CLUSTERS AROUND THE CSC.
3.TRACK FORECAST
THE SYSTEM WILL GRADUALLY TURN TO THE NORTH-NORTHWEST DUE TO
INTERACTION WITH A NEARBY TROPICAL CYCLONE UNTIL FT24. THE TRACK
FORECAST IS BASED ON GSM PREDICTIONS, AND REFERENCE TO OTHER NWP
MODELS. TRACK FORECAST CONFIDENCE IS LOW DUE TO SIGNIFICANT
DIFFERENCES AMONG NWP MODEL OUTPUTS.
4.INTENSITY FORECAST
THE SYSTEM WILL WEAKEN UNTIL FT24 UNDER THE INFLUENCE OF AN
ADJACENT SYSTEM. THE SYSTEM WILL WEAKEN TO TD INTENSITY BY FT12.
THE INTENSITY FORECAST IS BASED ON A CONSENSUS OF GUIDANCE DATA
INCLUDING GSM.
=

Original Message :

WTPN33 PGTW 242100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 010//
RMKS/
1. TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 010
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
241800Z --- NEAR 18.3N 138.3E
MOVEMENT PAST SIX HOURS - 360 DEGREES AT 16 KTS
POSITION ACCURATE TO WITHIN 025 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 18.3N 138.3E
---
FORECASTS:
12 HRS, VALID AT:
250600Z --- 20.5N 137.3E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 330 DEG/ 11 KTS
---
24 HRS, VALID AT:
251800Z --- 22.4N 136.0E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 36 HR POSIT: 325 DEG/ 12 KTS
---
36 HRS, VALID AT:
260600Z --- 24.4N 134.5E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
242100Z POSITION NEAR 18.9N 138.0E.
24AUG26. TROPICAL DEPRESSION 19W (ATSANI), LOCATED APPROXIMATELY
424 NM SOUTH-SOUTHWEST OF IWO TO, HAS TRACKED NORTHWARD AT 16
KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 241800Z IS 1004 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 241800Z IS 12 FEET. NEXT WARNINGS AT
250300Z, 250900Z, 251500Z AND 252100Z.
REFER TO TYPHOON 17W (SAUDEL) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.
REFER TO TROPICAL STORM 18W (NARRA) WARNINGS (WTPN32 PGTW)
FOR SIX-HOURLY UPDATES.//
NNNN

Original Message :

WTJP24 RJTD 241800
WARNING 241800.
WARNING VALID 251800.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL STORM 2621 ATSANI (2621) 998 HPA
AT 18.1N 137.8E SEA EAST OF PHILIPPINES MOVING NORTH 10 KNOTS.
POSITION FAIR.
MAX WINDS 35 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 90 MILES.
FORECAST POSITION FOR 250600UTC AT 20.1N 137.6E WITH 40 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1004 HPA.
BECOMING TROPICAL DEPRESSION.
FORECAST POSITION FOR 251800UTC AT 22.2N 136.1E WITH 57 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1006 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=

Original Message :

WTPQ53 RJTD 241800
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 241800UTC 18.1N 137.8E FAIR
MOVE N 10KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 90NM
FORECAST
12HF 250600UTC 20.1N 137.6E 40NM 70% TROPICAL DEPRESSION
24HF 251800UTC 22.2N 136.1E 57NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ53 RJTD 241500
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 241500UTC 17.1N 137.8E FAIR
MOVE N 08KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 150NM SOUTH 120NM NORTH
FORECAST
12HF 250300UTC 19.8N 137.9E 40NM 70% TROPICAL DEPRESSION
24HF 251500UTC 21.5N 136.5E 57NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ33 PGUM 241508
TCPPQ3

BULLETIN
Tropical Depression Atsani (19W) Advisory Number 9
National Weather Service Tiyan GU WP192026
108 AM ChST Tue Aug 25 2026

...TROPICAL DEPRESSION ATSANI MOVING NORTH-NORTHEAST...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 AM CHST...1500 UTC...INFORMATION
-----------------------------------------------
Location...17.2N 138.3E

About 500 miles west-northwest of Guam
About 515 miles west-northwest of Saipan
About 530 miles north of Yap
About 725 miles north-northeast of Koror

Maximum sustained winds...35 mph
Present movement...north-northeast...20 degrees at 7 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 AM CHST...1500 UTC...the center of Tropical Depression
Atsani was located near Latitude 17.2 degrees North and Longitude
138.3 degrees East, well north of Yap and well west-northwest of
the Marianas. Atsani is moving north-northeast at 7 mph. It is
expected to make a turn toward the north-northwest with a slight
increase in forward speed through Wednesday. This forecast track
will keep Atsani over the open ocean, well northwest of the
Marianas through Wednesday.

Maximum sustained winds remain at 35 mph. Atsani is forecast to
maintain this intensity through Tuesday, then begin to weaken
Tuesday night and Wednesday.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 AM ChST.

$$

Cruz

Original Message :

WTPN33 PGTW 241500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 009//
RMKS/
1. TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 009
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
241200Z --- NEAR 16.7N 138.3E
MOVEMENT PAST SIX HOURS - 020 DEGREES AT 06 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 16.7N 138.3E
---
FORECASTS:
12 HRS, VALID AT:
250000Z --- 18.6N 138.2E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 330 DEG/ 09 KTS
---
24 HRS, VALID AT:
251200Z --- 20.2N 137.3E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 36 HR POSIT: 325 DEG/ 09 KTS
---
36 HRS, VALID AT:
260000Z --- 21.7N 136.1E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
241500Z POSITION NEAR 17.2N 138.3E.24AUG26. TROPICAL DEPRESSION 19W
(ATSANI), LOCATED APPROXIMATELY 514 NM SOUTH-SOUTHWEST OF IWO TO, HAS
TRACKED NORTH-NORTHEASTWARD AT 06 KNOTS OVER THE PAST SIX HOURS.
// END PART 01 //

Original Message :

WTPQ33 RJTD 241200
RSMC TROPICAL CYCLONE PROGNOSTIC REASONING
REASONING NO. 9 FOR TS 2621 ATSANI (2621)
1.GENERAL COMMENTS
TS ATSANI IS LOCATED AT 16.6N, 138.1E. INFORMATION ON THE CURRENT
POSITION IS BASED ON ANIMATED MSI AND SURFACE OBSERVATIONS.
POSITIONAL ACCURACY IS FAIR. CENTRAL PRESSURE IS 998HPA AND
MAXIMUM SUSTAINED WINDS NEAR THE CENTER ARE 35KNOTS. THE SYSTEM IS
IN A NEUTRAL ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF
HIGH SSTS, HIGH TCHP AND STRONG VWS. THIS HAS CAUSED THE SYSTEM TO
MAINTAIN ITS INTENSITY OVER THE LAST SIX HOURS. INFORMATION ON THE
CURRENT INTENSITY IS BASED ON DVORAK INTENSITY ANALYSES AND
SURFACE WINDS DATA ESTIMATED FROM SATELLITE SCATTEROMETERS.
2.SYNOPTIC SITUATION
THE SYSTEM IS MOVING NORTH-NORTHEASTWARD DUE TO INTERACTION WITH A
NEARBY TROPICAL CYCLONE. ANIMATED MSI SHOWS CB CLUSTERS HAVE
GATHERED AROUND THE CSC. GPM/GMI 89 GHZ MICROWAVE IMAGERY SHOWS
THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD CLUSTERS AROUND THE CSC.
3.TRACK FORECAST
THE SYSTEM WILL GRADUALLY TURN TO THE NORTH-NORTHWEST DUE TO
INTERACTION WITH A NEARBY TROPICAL CYCLONE UNTIL FT24. THE TRACK
FORECAST IS BASED ON GSM PREDICTIONS, AND REFERENCE TO OTHER NWP
MODELS. TRACK FORECAST CONFIDENCE IS LOW DUE TO SIGNIFICANT
DIFFERENCES AMONG NWP MODEL OUTPUTS.
4.INTENSITY FORECAST
THE SYSTEM WILL WEAKEN UNTIL FT24 UNDER THE INFLUENCE OF AN
ADJACENT SYSTEM. THE SYSTEM WILL WEAKEN TO TD INTENSITY BY FT12.
THE INTENSITY FORECAST IS BASED ON A CONSENSUS OF GUIDANCE DATA
INCLUDING GSM.
=

Original Message :

WTJP24 RJTD 241200
WARNING 241200.
WARNING VALID 251200.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL STORM 2621 ATSANI (2621) 998 HPA
AT 16.6N 138.1E SEA EAST OF PHILIPPINES MOVING NORTHNORTHEAST 11
KNOTS.
POSITION FAIR.
MAX WINDS 35 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 150 MILES SOUTH SEMICIRCLE AND 120 MILES
ELSEWHERE.
FORECAST POSITION FOR 250000UTC AT 19.2N 138.1E WITH 40 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1004 HPA.
BECOMING TROPICAL DEPRESSION.
FORECAST POSITION FOR 251200UTC AT 21.0N 137.0E WITH 57 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1006 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=

Original Message :

WTPQ53 RJTD 241200
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 241200UTC 16.6N 138.1E FAIR
MOVE NNE 11KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 150NM SOUTH 120NM NORTH
FORECAST
12HF 250000UTC 19.2N 138.1E 40NM 70% TROPICAL DEPRESSION
24HF 251200UTC 21.0N 137.0E 57NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ53 RJTD 240900
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 240900UTC 16.4N 138.2E FAIR
MOVE NNE 11KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 150NM SOUTH 120NM NORTH
FORECAST
12HF 242100UTC 18.7N 138.2E 35NM 70% TROPICAL DEPRESSION
24HF 250900UTC 20.5N 137.5E 50NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ33 PGUM 240905
TCPPQ3

BULLETIN
TROPICAL DEPRESSION ATSANI (19W) ADVISORY NUMBER 8
NATIONAL WEATHER SERVICE TIYAN GU WP192026
705 PM CHST MON AUG 24 2026

...TROPICAL DEPRESSION ATSANI MOVING NORTHEAST IN THE WAKE OF
SAUDEL...

CHANGES WITH THIS ADVISORY
--------------------------
NONE.

WATCHES AND WARNINGS
--------------------
NONE.

SUMMARY OF 700 PM CHST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...16.6N 138.2E

ABOUT 490 MILES WEST-NORTHWEST OF GUAM
ABOUT 490 MILES NORTH OF YAP
ABOUT 510 MILES WEST-NORTHWEST OF SAIPAN
ABOUT 685 MILES NORTH-NORTHEAST OF KOROR

MAXIMUM SUSTAINED WINDS...35 MPH
PRESENT MOVEMENT...NORTHEAST...45 DEGREES AT 14 MPH

DISCUSSION AND OUTLOOK
----------------------
AT 700 PM CHST...0900 UTC...THE CENTER OF TROPICAL DEPRESSION ATSANI
(19W) WAS LOCATED NEAR LATITUDE 16.6 DEGREES NORTH AND LONGITUDE
138.2 DEGREES EAST. ATSANI IS MOVING NORTHEAST AT 14 MPH. IT IS
EXPECTED TO MAKE A TURN TOWARD THE NORTH WITH A SLIGHT DECREASE IN
FORWARD SPEED THROUGH TUESDAY.

MAXIMUM SUSTAINED WINDS REMAIN AT 35 MPH. ATSANI IS FORECAST TO
MAINTAIN THIS INTENSITY THROUGH TUESDAY.

NEXT ADVISORY
-------------
THE NEXT SCHEDULED ADVISORY WILL BE ISSUED BY THE NATIONAL WEATHER
SERVICE AT 200 AM CHST EARLY TUESDAY MORNING.

$$

MONTVILA=

Original Message :

WTPQ33 RJTD 240600
RSMC TROPICAL CYCLONE PROGNOSTIC REASONING
REASONING NO. 8 FOR TS 2621 ATSANI (2621)
1.GENERAL COMMENTS
TS ATSANI IS LOCATED AT 16.1N, 138.1E. INFORMATION ON THE CURRENT
POSITION IS BASED ON ANIMATED MSI AND SURFACE OBSERVATIONS.
POSITIONAL ACCURACY IS FAIR. CENTRAL PRESSURE IS 998HPA AND
MAXIMUM SUSTAINED WINDS NEAR THE CENTER ARE 35KNOTS. THE SYSTEM IS
IN A NEUTRAL ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF
HIGH SSTS, HIGH TCHP AND STRONG VWS. THIS HAS CAUSED THE SYSTEM TO
MAINTAIN ITS INTENSITY OVER THE LAST SIX HOURS. INFORMATION ON THE
CURRENT INTENSITY IS BASED ON DVORAK INTENSITY ANALYSES AND
SURFACE WINDS DATA ESTIMATED FROM SATELLITE SCATTEROMETERS.
2.SYNOPTIC SITUATION
THE SYSTEM IS MOVING NORTHEASTWARD DUE TO INTERACTION WITH A
NEARBY TROPICAL CYCLONE. ANIMATED MSI SHOWS THE SEPARATION OF
ACTIVE CONVECTIVE CLOUD CLUSTERS FROM THE CSC. GOSAT-GW/AMSR3 89
GHZ MICROWAVE IMAGERY SHOWS THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD
CLUSTERS AROUND THE CSC.
3.TRACK FORECAST
THE SYSTEM WILL MOVE NORTHWARD DUE TO INTERACTION WITH A NEARBY
TROPICAL CYCLONE UNTIL FT24. THE TRACK FORECAST IS BASED ON GSM
PREDICTIONS, AND REFERENCE TO OTHER NWP MODELS. TRACK FORECAST
CONFIDENCE IS FAIR BECAUSE ALL NWP MODELS ARE IN CLOSE AGREEMENT.
4.INTENSITY FORECAST
THE SYSTEM WILL WEAKEN UNTIL FT24 UNDER THE INFLUENCE OF AN
ADJACENT SYSTEM. THE SYSTEM WILL WEAKEN TO TD INTENSITY BY FT12.
THE INTENSITY FORECAST IS BASED ON A CONSENSUS OF GUIDANCE DATA
INCLUDING GSM.
=

Original Message :

WTPN33 PGTW 240900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 008//
RMKS/
1. TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 008
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
240600Z --- NEAR 16.1N 138.1E
MOVEMENT PAST SIX HOURS - 045 DEGREES AT 12 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 16.1N 138.1E
---
FORECASTS:
12 HRS, VALID AT:
241800Z --- 18.0N 138.4E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 350 DEG/ 10 KTS
---
24 HRS, VALID AT:
250600Z --- 19.9N 138.0E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 36 HR POSIT: 325 DEG/ 10 KTS
---
36 HRS, VALID AT:
251800Z --- 21.5N 136.9E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
240900Z POSITION NEAR 16.6N 138.2E. 24AUG26. TROPICAL DEPRESSION 19W
(ATSANI), LOCATED APPROXIMATELY 552 NM SOUTH-SOUTHWEST OF IWO TO, HAS
TRACKED NORTHEASTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. MINIMUM
// END PART 01 //

Original Message :

WTJP24 RJTD 240600
WARNING 240600.
WARNING VALID 250600.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL STORM 2621 ATSANI (2621) 998 HPA
AT 16.1N 138.1E SEA EAST OF PHILIPPINES MOVING NORTHEAST 13 KNOTS.
POSITION FAIR.
MAX WINDS 35 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 150 MILES.
FORECAST POSITION FOR 241800UTC AT 18.2N 138.1E WITH 35 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1002 HPA.
BECOMING TROPICAL DEPRESSION.
FORECAST POSITION FOR 250600UTC AT 20.0N 137.6E WITH 50 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1004 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=

Original Message :

WTPQ53 RJTD 240600
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 240600UTC 16.1N 138.1E FAIR
MOVE NE 13KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 150NM
FORECAST
12HF 241800UTC 18.2N 138.1E 35NM 70% TROPICAL DEPRESSION
24HF 250600UTC 20.0N 137.6E 50NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ53 RJTD 240300
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621)
ANALYSIS
PSTN 240300UTC 15.5N 137.6E FAIR
MOVE NNE 13KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 150NM
FORECAST
12HF 241500UTC 17.9N 138.3E 35NM 70%
MOVE NNE 12KT
PRES 998HPA
MXWD 035KT
GUST 050KT
24HF 250300UTC 20.0N 137.8E 50NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ33 PGUM 240309
TCPPQ3

BULLETIN
Tropical Depression Atsani (19W) Advisory Number 7
National Weather Service Tiyan GU WP192026
109 PM ChST Mon Aug 24 2026

...TROPICAL DEPRESSION ATSANI MOVING NORTH-NORTHEAST...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 PM CHST...0300 UTC...INFORMATION
-----------------------------------------------
Location...15.7N 137.4E

About 425 miles north-northwest of Ulithi
About 430 miles north of Yap
About 460 miles north-northwest of Fais
About 515 miles west-northwest of Guam
About 535 miles west-northwest of Rota
About 550 miles west of Tinian
About 555 miles west of Saipan
About 575 miles west-southwest of Alamagan
About 575 miles west-southwest of Pagan
About 585 miles west-southwest of Agrihan

Maximum sustained winds...35 mph
Present movement...north-northeast...30 degrees at 16 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 PM CHST...0300 UTC...the center of Tropical Depression
Atsani was located near Latitude 15.7 degrees North and Longitude
137.4 degrees East. Atsani is moving north-northeast at 16 mph.
It is expected to make a slight turn toward the north with a
slight decrease in forward speed through Tuesday. This forecast track
will keep Atsani over the open ocean through Wednesday.

Maximum sustained winds remain at 35 mph. Atsani is forecast to
maintain this intensity through tonight.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 PM ChST.

$$

Ogle

Original Message :

WTPN33 PGTW 240300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 007//
RMKS/
1. TROPICAL DEPRESSION 19W (ATSANI) WARNING NR 007
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
240000Z --- NEAR 15.2N 137.2E
MOVEMENT PAST SIX HOURS - 030 DEGREES AT 14 KTS
POSITION ACCURATE TO WITHIN 040 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 15.2N 137.2E
---
FORECASTS:
12 HRS, VALID AT:
241200Z --- 17.2N 137.9E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 355 DEG/ 10 KTS
---
24 HRS, VALID AT:
250000Z --- 19.1N 137.8E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 36 HR POSIT: 340 DEG/ 12 KTS
---
36 HRS, VALID AT:
251200Z --- 21.3N 136.9E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 48 HR POSIT: 320 DEG/ 13 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
260000Z --- 23.3N 135.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
240300Z POSITION NEAR 15.7N 137.4E.
24AUG26. TROPICAL DEPRESSION 19W (ATSANI), LOCATED APPROXIMATELY
346 NM NORTH OF YAP, HAS TRACKED NORTH-NORTHEASTWARD AT 14 KNOTS
OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 240000Z IS 1001 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 240000Z IS 12 FEET. NEXT WARNINGS AT
240900Z, 241500Z, 242100Z AND 250300Z.
REFER TO TYPHOON 17W (SAUDEL) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.
REFER TO TROPICAL STORM 18W (NARRA) WARNINGS (WTPN32 PGTW)
FOR SIX-HOURLY UPDATES.//
NNNN

Original Message :

WTPQ33 RJTD 240000
RSMC TROPICAL CYCLONE PROGNOSTIC REASONING
REASONING NO. 7 FOR TS 2621 ATSANI (2621)
1.GENERAL COMMENTS
A TD PREVIOUSLY LOCATED AT 14.1N, 136.4E HAS BEEN UPGRADED TO TS
(ATSANI) STATUS. TS ATSANI IS LOCATED AT 15.1N, 137.3E.
INFORMATION ON THE CURRENT POSITION IS BASED ON ANIMATED MSI AND
SURFACE OBSERVATIONS. POSITIONAL ACCURACY IS FAIR. CENTRAL
PRESSURE IS 998HPA AND MAXIMUM SUSTAINED WINDS NEAR THE CENTER ARE
35KNOTS. THE SYSTEM IS IN A FAVORABLE ENVIRONMENT FOR DEVELOPMENT
UNDER THE INFLUENCE OF HIGH SSTS, HIGH TCHP AND GOOD UPPER-LEVEL
OUTFLOW. THIS HAS CAUSED THE SYSTEM TO DEVELOP OVER THE LAST SIX
HOURS. INFORMATION ON THE CURRENT INTENSITY IS BASED ON DVORAK
INTENSITY ANALYSES AND SURFACE WINDS DATA ESTIMATED FROM SATELLITE
SCATTEROMETERS.
2.SYNOPTIC SITUATION
THE SYSTEM IS MOVING NORTHEASTWARD DUE TO INTERACTION WITH A
NEARBY TROPICAL CYCLONE. ANIMATED MSI SHOWS THE SEPARATION OF
ACTIVE CONVECTIVE CLOUD CLUSTERS FROM THE CSC. DMSP-F17/SSMIS 89
GHZ MICROWAVE IMAGERY SHOWS THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD
CLUSTERS AROUND THE CSC.
3.TRACK FORECAST
THE SYSTEM WILL MOVE NORTH-NORTHEASTWARD DUE TO INTERACTION WITH A
NEARBY TROPICAL CYCLONE UNTIL FT12. THE SYSTEM WILL THEN MOVE
NORTHWARD DUE TO INTERACTION WITH A NEARBY TROPICAL CYCLONE UNTIL
FT24. THE TRACK FORECAST IS BASED ON GSM PREDICTIONS, AND
REFERENCE TO OTHER NWP MODELS. TRACK FORECAST CONFIDENCE IS FAIR
BECAUSE ALL NWP MODELS ARE IN CLOSE AGREEMENT.
4.INTENSITY FORECAST
THE SYSTEM WILL MAINTAIN ITS INTENSITY UNTIL FT12 DUE TO THE
INFLUENCE OF INTERACTION WITH HIGH SSTS, HIGH TCHP AND STRONG VWS.
THE SYSTEM WILL THEN WEAKEN UNTIL FT24 UNDER THE INFLUENCE OF AN
ADJACENT SYSTEM. THE SYSTEM WILL WEAKEN TO TD INTENSITY BY FT24.
THE INTENSITY FORECAST IS BASED ON A CONSENSUS OF GUIDANCE DATA
INCLUDING GSM.
=

Original Message :

WTJP24 RJTD 240000
WARNING 240000.
WARNING VALID 250000.
WARNING IS UPDATED EVERY 6 HOURS.
GALE WARNING.
TROPICAL STORM 2621 ATSANI (2621) UPGRADED FROM TROPICAL DEPRESSION
998 HPA
AT 15.1N 137.3E SEA EAST OF PHILIPPINES MOVING NORTHEAST 13 KNOTS.
POSITION FAIR.
MAX WINDS 35 KNOTS NEAR CENTER.
RADIUS OF OVER 30 KNOT WINDS 150 MILES.
FORECAST POSITION FOR 241200UTC AT 17.3N 138.4E WITH 35 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
998 HPA, MAX WINDS 35 KNOTS NEAR CENTER.
FORECAST POSITION FOR 250000UTC AT 19.6N 138.0E WITH 50 MILES RADIUS
OF 70 PERCENT PROBABILITY CIRCLE.
1004 HPA.
BECOMING TROPICAL DEPRESSION.

JAPAN METEOROLOGICAL AGENCY.=

Original Message :

WTPQ53 RJTD 240000
RSMC TROPICAL CYCLONE ADVISORY
NAME TS 2621 ATSANI (2621) UPGRADED FROM TD
ANALYSIS
PSTN 240000UTC 15.1N 137.3E FAIR
MOVE NE 13KT
PRES 998HPA
MXWD 035KT
GUST 050KT
30KT 150NM
FORECAST
12HF 241200UTC 17.3N 138.4E 35NM 70%
MOVE NNE 12KT
PRES 998HPA
MXWD 035KT
GUST 050KT
24HF 250000UTC 19.6N 138.0E 50NM 70% TROPICAL DEPRESSION =

Original Message :

WTPQ33 PGUM 232214
TCPPQ3

BULLETIN
Tropical Depression 19W Advisory Number 6
National Weather Service Tiyan GU WP192026
814 AM ChST Mon Aug 24 2026

...TROPICAL DEPRESSION NINETEEN REMAINS SOMEWHAT WEAK,
WELL WEST OF THE MARIANAS, AND IS MOVING NORTH...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION
-----------------------------------------------
Location...14.4N 136.8E

About 350 miles north-northwest of Yap
About 510 miles north-northeast of Koror
About 540 miles west of Guam
About 600 miles west of Saipan

Maximum sustained winds...35 mph
Present movement...north...360 degrees at 5 mph

DISCUSSION AND OUTLOOK
----------------------
At 700 AM CHST...2100 UTC...the center of Tropical Depression 19W
was located near Latitude 14.4 degrees North and Longitude
136.8 degrees East. 19W is moving north at 5 mph. It is expected
to maintain this general course with an increase in forward speed
through Tuesday.

Maximum sustained winds remain at 35 mph. 19W is forecast to
maintain this intensity through tonight.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 200 AM ChST early Tuesday morning.

$$

Doll

Original Message :

WTPN33 PGTW 232100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (NINETEEN) WARNING NR 006//
RMKS/
1. TROPICAL DEPRESSION 19W (NINETEEN) WARNING NR 006
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
231800Z --- NEAR 14.0N 136.5E
MOVEMENT PAST SIX HOURS - 360 DEGREES AT 04 KTS
POSITION ACCURATE TO WITHIN 040 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 14.0N 136.5E
---
FORECASTS:
12 HRS, VALID AT:
240600Z --- 15.6N 137.6E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 005 DEG/ 10 KTS
---
24 HRS, VALID AT:
241800Z --- 17.6N 137.7E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 36 HR POSIT: 350 DEG/ 12 KTS
---
36 HRS, VALID AT:
250600Z --- 19.9N 137.3E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 48 HR POSIT: 330 DEG/ 12 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
251800Z --- 22.0N 136.1E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
// END PART 01 //

Original Message :

WTPQ33 PGUM 231504
TCPPQ3

BULLETIN
Tropical Depression 19W Advisory Number 5
National Weather Service Tiyan GU WP192026
104 AM ChST Mon Aug 24 2026

...TROPICAL DEPRESSION NINETEEN MOVING EAST-NORTHEAST AWAY FROM PALAU
AND YAP...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 AM CHST...1500 UTC...INFORMATION
-----------------------------------------------
Location...14.0N 136.8E

About 325 miles north-northwest of Yap
About 485 miles north-northeast of Koror
About 535 miles west of Guam
About 600 miles west of Saipan

Maximum sustained winds...35 mph
Present movement...east-northeast...65 degrees at 8 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 AM CHST...1500 UTC...the center of Tropical Depression 19W
was located near Latitude 14.0 degrees North and Longitude
136.8 degrees East. 19W is moving east-northeast at 8 mph. It is
expected to make a turn toward the north-northeast with a slight
increase in forward speed through Tuesday. 19W continues to move
away from Yap and Palau and remains well west of the Marianas.

Maximum sustained winds remain at 35 mph. 19W is forecast to
maintain this intensity through Tuesday.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 AM ChST.

$$

Cruz

Original Message :

WTPN33 PGTW 231500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (NINETEEN) WARNING NR 005//
RMKS/
1. TROPICAL DEPRESSION 19W (NINETEEN) WARNING NR 005
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
231200Z --- NEAR 13.7N 136.5E
MOVEMENT PAST SIX HOURS - 065 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 13.7N 136.5E
---
FORECASTS:
12 HRS, VALID AT:
240000Z --- 15.0N 137.6E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 24 HR POSIT: 015 DEG/ 10 KTS
---
24 HRS, VALID AT:
241200Z --- 17.0N 138.2E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 350 DEG/ 09 KTS
---
36 HRS, VALID AT:
250000Z --- 18.8N 137.9E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
VECTOR TO 48 HR POSIT: 330 DEG/ 10 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
251200Z --- 20.6N 136.8E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
---
REMARKS:
231500Z POSITION NEAR 14.0N 136.8E. 23AUG26. TROPICAL DEPRESSION 19W
(NINETEEN), LOCATED APPROXIMATELY 473 NM WEST OF NAVSTA GUAM, HAS
TRACKED EAST-NORTHEASTWARD AT 07 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 231200Z IS 1001 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 231200Z IS 12 FEET. NEXT WARNINGS AT
232100Z, 240300Z, 240900Z AND 241500Z. REFER TO TYPHOON 17W (SAUDEL)
WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES. REFER TO TROPICAL STORM
18W (NARRA) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//
NNNN

Original Message :

WTPQ33 PGUM 230913
TCPPQ3

BULLETIN
Tropical Depression 19W Advisory Number 4
National Weather Service Tiyan GU WP192026
713 PM ChST Sun Aug 23 2026

...TROPICAL DEPRESSION NINETEEN MOVING EAST-NORTHEAST AWAY FROM PALAU
AND YAP...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 700 PM CHST...0900 UTC...INFORMATION
-----------------------------------------------
Location...13.7N 136.2E

About 315 miles north-northwest of Yap
About 455 miles north-northeast of Koror
About 575 miles west of Guam
About 645 miles west of Saipan

Maximum sustained winds...35 mph
Present movement...east-northeast...60 degrees at 9 mph

DISCUSSION AND OUTLOOK
----------------------
At 700 PM CHST...0900 UTC...the center of Tropical Depression 19W was
located near Latitude 13.7 degrees North and Longitude 136.2 degrees
East. 19W is moving east-northeast at 9 mph. It is expected to make a
turn toward the north-northeast with little change in forward speed
through Monday.

Maximum sustained winds remain at 35 mph. 19W is forecast to maintain
this intensity through Monday, remaining as a Tropical Depression.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National Weather
Service at 200 AM ChST early Monday morning.

$$

Montvila

Original Message :

WTPQ33 PGUM 230309
TCPPQ3

BULLETIN
Tropical Depression 19W Advisory Number 3
National Weather Service Tiyan GU WP192026
109 PM ChST Sun Aug 23 2026

...TROPICAL DEPRESSION NINETEEN NEARLY STATIONARY, WELL
NORTHWEST OF YAP...

CHANGES WITH THIS ADVISORY
--------------------------
None.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 PM CHST...0300 UTC...INFORMATION
-----------------------------------------------
Location...13.2N 135.4E

About 315 miles northwest of Yap
About 355 miles north of Kayangel
About 365 miles north-northwest of Ngulu
About 370 miles northwest of Ulithi
About 410 miles north of Koror
About 630 miles west of Guam
About 705 miles west of Saipan

Maximum sustained winds...35 mph
Present movement...north-northwest...340 degrees at 3 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 PM CHST...0300 UTC...the center of Tropical Depression 19W
was located near Latitude 13.2 degrees North and Longitude
135.4 degrees East. 19W is moving north-northwest at 3 mph. It is
expected to make a turn toward the northeast with an increase in
forward speed through Monday. This general forecast track should
take 19W through open ocean.

Maximum sustained winds remain at 35 mph. 19W is forecast to
maintain this intensity through tonight.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 PM ChST.

$$

Doll

Original Message :

WTPQ33 PGUM 222152
TCPPQ3

BULLETIN
TROPICAL DEPRESSION 19W ADVISORY NUMBER 2
NATIONAL WEATHER SERVICE TIYAN GU WP192026
752 AM CHST SUN AUG 23 2026

...TROPICAL DEPRESSION NINETEEN MOVING NORTH...

CHANGES WITH THIS ADVISORY
--------------------------
NONE.

WATCHES AND WARNINGS
--------------------
NONE.

SUMMARY OF 700 AM CHST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...12.7N 135.7E

ABOUT 275 MILES NORTHWEST OF YAP
ABOUT 325 MILES NORTH OF KAYANGEL
ABOUT 325 MILES NORTH-NORTHWEST OF NGULU
ABOUT 335 MILES NORTHWEST OF ULITHI
ABOUT 380 MILES NORTH-NORTHEAST OF KOROR
ABOUT 615 MILES WEST OF GUAM
ABOUT 690 MILES WEST-SOUTHWEST OF SAIPAN

MAXIMUM SUSTAINED WINDS...35 MPH
PRESENT MOVEMENT...NORTH...360 DEGREES AT 5 MPH

DISCUSSION AND OUTLOOK
----------------------
AT 700 AM CHST...2100 UTC...THE CENTER OF TROPICAL DEPRESSION 19W WAS
LOCATED NEAR LATITUDE 12.7 DEGREES NORTH AND LONGITUDE 135.7 DEGREES
EAST. 19W IS MOVING NORTH AT 5 MPH. IT IS EXPECTED TO TURN TOWARD THE
NORTHEAST WITH A SLIGHT INCREASE IN FORWARD SPEED THROUGH MONDAY.
THIS
GENERAL FORECAST TRACK SHOULD TAKE 19W THROUGH OPEN OCEAN.

MAXIMUM SUSTAINED WINDS REMAIN AT 35 MPH. 19W IS FORECAST TO
INTENSIFY THROUGH TONIGHT POSSIBLY BECOMING A TROPICAL STORM.

NEXT ADVISORY
-------------
THE NEXT SCHEDULED ADVISORY WILL BE ISSUED BY THE NATIONAL
WEATHER SERVICE AT 200 PM CHST.

$$

STANKO=

Original Message :

WTPN33 PGTW 222100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 19W (NINETEEN) WARNING NR 002//
RMKS/
1. TROPICAL DEPRESSION 19W (NINETEEN) WARNING NR 002
03 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
221800Z --- NEAR 12.5N 135.6E
MOVEMENT PAST SIX HOURS - 360 DEGREES AT 04 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 12.5N 135.6E
---
FORECASTS:
12 HRS, VALID AT:
230600Z --- 13.3N 136.2E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 050 DEG/ 08 KTS
---
24 HRS, VALID AT:
231800Z --- 14.4N 137.5E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 36 HR POSIT: 030 DEG/ 09 KTS
---
36 HRS, VALID AT:
240600Z --- 15.9N 138.4E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
VECTOR TO 48 HR POSIT: 005 DEG/ 08 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
241800Z --- 17.4N 138.5E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
// END PART 01 //

Original Message :

WTPQ33 PGUM 221501
TCPPQ3

BULLETIN
Tropical Depression 19W Advisory Number 1
National Weather Service Tiyan GU WP192026
101 AM ChST Sun Aug 23 2026

...TROPICAL DEPRESSION 19W FORMS NORTHWEST OF YAP...

CHANGES WITH THIS ADVISORY
--------------------------
Tropical Depression 19W has just formed northwest of Yap.

WATCHES AND WARNINGS
--------------------
None.

SUMMARY OF 100 AM CHST...1500 UTC...INFORMATION
-----------------------------------------------
Location...12.5N 135.5E

About 270 miles northwest of Yap
About 310 miles north of Kayangel
About 320 miles north-northwest of Ngulu
About 335 miles west-northwest of Ulithi
About 365 miles north of Koror
About 630 miles west of Guam
About 710 miles west-southwest of Saipan

Maximum sustained winds...35 mph
Present movement...north-northwest...330 degrees at 10 mph

DISCUSSION AND OUTLOOK
----------------------
At 100 AM CHST...1500 UTC...the center of Tropical Depression 19W was
located near Latitude 12.5 degrees North and Longitude 135.5 degrees
East. 19W is moving north-northwest at 10 mph. It is expected to turn
toward the northeast with little change in forward change in forward
speed through Monday. This general forecast track will take 19W
farther away from Yap State and the Republic of Palau into the open
waters of the Philippine Sea.

Maximum sustained winds are 35 mph. 19W is forecast to intensify
through Monday possibly becoming a tropical storm.

NEXT ADVISORY
-------------
The next scheduled advisory will be issued by the National
Weather Service at 800 AM ChST.

$$

Stanko

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