Overall Green Volcanic eruption alert for San Miguel in El Salvador on 22 Nov 2022 08:44 UTC

Volcano Ash Advisories for air traffic

Although Volcano Ash Advisories (VAAC) are not intended for assessing humanitarian impact, the observations of the plume are relevant for understanding local impact. The actual impact (like ash fall) depends on the type of eruption and is not known.

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)

20/11 20:59 2022-002 WASHINGTON

20/11 15:19 2022-001 WASHINGTON

Volcanic Ash Advisory issued on 2022-11-20 at 20:59 UTC.

Key information extracted from original VAA message :

Volcanic ash emission ended.
Volcanic ash from earlier emission dispersed. No new activity noted in web cam or satellite imagery. No new. Lee.

Original Message :

Received FVXX23 at 21:01 UTC, 20/11/22 from KNES
VA ADVISORY
DTG: 20221120/2059Z
VAAC: WASHINGTON
VOLCANO: SAN MIGUEL 343100
PSN: N1325 W08816
AREA: EL.SALVADOR
SUMMIT ELEV: 6988 FT [2130 M]
ADVISORY NR: 2022/002
INFO SOURCE: GOES-16. WEBCAM.
ERUPTION DETAILS: VA EMS ENDED.
OBS VA DTG: 20/2031Z
OBS VA CLD: VA NOT IDENTIFIABLE FM STLT DATA.
FCST VA CLD +6HR: 21/0230Z NO VA EXP
FCST VA CLD +12HR: 21/0830Z NO VA EXP
FCST VA CLD +18HR: 21/1430Z NO VA EXP
RMK: VA FM EARLIER EMS DISPERSED. NO NEW ACT
NOTED IN WEB CAM OR STLT IMAGERY. NO NEW RPRTS.
...LEE
NXT ADVISORY: NO FURTHER ADVISORIES

Volcanic Ash Advisory issued on 2022-11-20 at 15:19 UTC.

Key information extracted from original VAA message :

Minor volcanic ash emission moving w.
Occasional small discrete volcanic ash emission observation in visibility satellite imagery and webcam. Puffs of volcanic ash moving w apprx 60nm from summit before dissipating. Volcanic ash based on nwp models and webcam. Volcanic ash forecast through t+6 hours based on current satellite imagery and nwp. Coverdale.

Original Message :

Received FVXX23 at 15:21 UTC, 20/11/22 from KNES
VA ADVISORY
DTG: 20221120/1519Z
VAAC: WASHINGTON
VOLCANO: SAN MIGUEL 343100
PSN: N1325 W08816
AREA: EL.SALVADOR
SUMMIT ELEV: 6988 FT [2130 M]
ADVISORY NR: 2022/001
INFO SOURCE: GOES-16. WEBCAM. NWP MODELS.
ERUPTION DETAILS: MINOR VA EMS MOVG W
OBS VA DTG: 20/1450Z
OBS VA CLD: SFC/FL090 N1326 W08816 - N1325 W08816 - N1310 W08920 - N1317 W08922 - N1326 W08816 MOV W 20KT
FCST VA CLD +6HR: 20/2100Z SFC/FL090 N1331 W08931 - N1326 W08816 - N1325 W08816 - N1317 W08931 - N1331 W08931
FCST VA CLD +12HR: 21/0300Z NO VA EXP
FCST VA CLD +18HR: 21/0900Z NO VA EXP
RMK: OCNL SMALL DISCRETE VA EMS OBS IN VIS STLT
IMAGERY AND WEBCAM. PUFFS OF VA MOVG W APPRX 60NM
FM SUMMIT BEFORE DISSIPATING. VA FL BASED ON NWP
MDLS AND WEBCAM. VA FCST THRU T+6 HRS BASED ON
CURRENT STLT IMAGERY AND NWP. ...COVERDALE
NXT ADVISORY: WILL BE ISSUED BY 20221120/2115Z

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