WTPN31 PGTW 080900

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//

SUBJ/TROPICAL CYCLONE WARNING//

RMKS/

1. TYPHOON 17W (SHANSHAN) WARNING NR 023

   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC

   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE

   WIND RADII VALID OVER OPEN WATER ONLY

    ---

   WARNING POSITION:

   080600Z --- NEAR 33.8N 141.3E

     MOVEMENT PAST SIX HOURS - 310 DEGREES AT 06 KTS

     POSITION ACCURATE TO WITHIN 030 NM

     POSITION BASED ON CENTER LOCATED BY SATELLITE

   PRESENT WIND DISTRIBUTION:

   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT

                            045 NM SOUTHEAST QUADRANT

                            035 NM SOUTHWEST QUADRANT

                            045 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT

                            075 NM SOUTHEAST QUADRANT

                            070 NM SOUTHWEST QUADRANT

                            080 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT

                            160 NM SOUTHEAST QUADRANT

                            130 NM SOUTHWEST QUADRANT

                            170 NM NORTHWEST QUADRANT

   REPEAT POSIT: 33.8N 141.3E

    ---

   FORECASTS:

   12 HRS, VALID AT:

   081800Z --- 35.3N 140.9E

   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT

                            050 NM SOUTHEAST QUADRANT

                            000 NM SOUTHWEST QUADRANT

                            010 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT

                            065 NM SOUTHEAST QUADRANT

                            030 NM SOUTHWEST QUADRANT

                            030 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT

                            140 NM SOUTHEAST QUADRANT

                            135 NM SOUTHWEST QUADRANT

                            095 NM NORTHWEST QUADRANT

   VECTOR TO 24 HR POSIT: 015 DEG/ 09 KTS

    ---

   24 HRS, VALID AT:

   090600Z --- 37.0N 141.5E

   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT

                            035 NM SOUTHEAST QUADRANT

                            020 NM SOUTHWEST QUADRANT

                            000 NM NORTHWEST QUADRANT

   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT

                            045 NM SOUTHEAST QUADRANT

                            030 NM SOUTHWEST QUADRANT

                            030 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT

                            130 NM SOUTHEAST QUADRANT

                            130 NM SOUTHWEST QUADRANT

                            050 NM NORTHWEST QUADRANT

   VECTOR TO 36 HR POSIT: 050 DEG/ 16 KTS

    ---

   36 HRS, VALID AT:

   091800Z --- 39.0N 144.7E

   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   RADIUS OF 050 KT WINDS - 015 NM NORTHEAST QUADRANT

                            045 NM SOUTHEAST QUADRANT

                            005 NM SOUTHWEST QUADRANT

                            000 NM NORTHWEST QUADRANT

   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT

                            150 NM SOUTHEAST QUADRANT

                            115 NM SOUTHWEST QUADRANT

                            035 NM NORTHWEST QUADRANT

   VECTOR TO 48 HR POSIT: 070 DEG/ 24 KTS

    ---

   EXTENDED OUTLOOK:

   48 HRS, VALID AT:

   100600Z --- 40.7N 150.6E

   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   BECOMING EXTRATROPICAL

   RADIUS OF 034 KT WINDS - 025 NM NORTHEAST QUADRANT

                            175 NM SOUTHEAST QUADRANT

                            160 NM SOUTHWEST QUADRANT

                            025 NM NORTHWEST QUADRANT

   VECTOR TO 72 HR POSIT: 070 DEG/ 30 KTS

    ---

   72 HRS, VALID AT:

   110600Z --- 43.5N 166.5E

   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT

   WIND RADII VALID OVER OPEN WATER ONLY

   EXTRATROPICAL

   RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT

                            165 NM SOUTHEAST QUADRANT

                            275 NM SOUTHWEST QUADRANT

                            005 NM NORTHWEST QUADRANT

    ---

REMARKS:

080900Z POSITION NEAR 34.2N 141.2E.

TYPHOON (TY) 17W (SHANSHAN), LOCATED APPROXIMATELY 120 NM

SOUTHEAST OF YOKOSUKA, JAPAN, HAS TRACKED NORTHWESTWARD AT

06 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE

HEIGHT AT 080600Z IS 26 FEET. NEXT WARNINGS AT 081500Z,

082100Z, 090300Z AND 090900Z. REFER TO TROPICAL STORM 18W

(YAGI) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//

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