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West Pacific Tropical Cyclone Discussion

913
WTPN31 PGTW 251500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TYPHOON 20W (MEGI) WARNING NR 011
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
251200Z --- NEAR 20.1N 129.3E
MOVEMENT PAST SIX HOURS - 290 DEGREES AT 10 KTS
POSITION ACCURATE TO WITHIN 010 NM
POSITION BASED ON EYE FIXED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT
110 NM SOUTHEAST QUADRANT
075 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT
250 NM SOUTHEAST QUADRANT
120 NM SOUTHWEST QUADRANT
195 NM NORTHWEST QUADRANT
REPEAT POSIT: 20.1N 129.3E
---
FORECASTS:
12 HRS, VALID AT:
260000Z --- 20.9N 127.0E
MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 070 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
045 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 135 NM NORTHEAST QUADRANT
120 NM SOUTHEAST QUADRANT
095 NM SOUTHWEST QUADRANT
125 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 265 NM NORTHEAST QUADRANT
225 NM SOUTHEAST QUADRANT
175 NM SOUTHWEST QUADRANT
220 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 290 DEG/ 11 KTS
---
24 HRS, VALID AT:
261200Z --- 21.7N 124.8E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 075 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 130 NM NORTHEAST QUADRANT
125 NM SOUTHEAST QUADRANT
110 NM SOUTHWEST QUADRANT
130 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT
220 NM SOUTHEAST QUADRANT
195 NM SOUTHWEST QUADRANT
235 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 290 DEG/ 11 KTS
---
36 HRS, VALID AT:
270000Z --- 22.4N 122.6E
MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 075 NM NORTHEAST QUADRANT
075 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
075 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 135 NM NORTHEAST QUADRANT
120 NM SOUTHEAST QUADRANT
110 NM SOUTHWEST QUADRANT
135 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 230 NM NORTHEAST QUADRANT
215 NM SOUTHEAST QUADRANT
210 NM SOUTHWEST QUADRANT
245 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 290 DEG/ 11 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
271200Z --- 23.1N 120.3E
MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 070 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 125 NM NORTHEAST QUADRANT
105 NM SOUTHEAST QUADRANT
095 NM SOUTHWEST QUADRANT
125 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT
210 NM SOUTHEAST QUADRANT
190 NM SOUTHWEST QUADRANT
210 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 280 DEG/ 08 KTS
---
72 HRS, VALID AT:
281200Z --- 23.7N 116.7E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
140 NM SOUTHEAST QUADRANT
095 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 275 DEG/ 06 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
291200Z --- 24.0N 113.9E
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 120 HR POSIT: 275 DEG/ 06 KTS
---
120 HRS, VALID AT:
301200Z --- 24.2N 111.3E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
---
REMARKS:
251500Z POSITION NEAR 20.3N 128.7E.
TYPHOON 20W (MEGI), LOCATED APPROXIMATELY 526 NM EAST-SOUTHEAST
OF TAIPEI, TAIWAN, HAS TRACKED WEST-NORTHWESTWARD AT 10 KNOTS
OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
251200Z IS 32 FEET. NEXT WARNINGS AT 252100Z, 260300Z, 260900Z
AND 261500Z.//

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