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West Pacific Tropical Cyclone Discussion

967
WTPN31 PGTW 242100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TYPHOON 20W (MEGI) WARNING NR 008
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
241800Z --- NEAR 18.7N 132.8E
MOVEMENT PAST SIX HOURS - 285 DEGREES AT 12 KTS
POSITION ACCURATE TO WITHIN 040 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 200 NM NORTHEAST QUADRANT
165 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
195 NM NORTHWEST QUADRANT
REPEAT POSIT: 18.7N 132.8E
---
FORECASTS:
12 HRS, VALID AT:
250600Z --- 19.6N 130.3E
MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 125 NM NORTHEAST QUADRANT
095 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 255 NM NORTHEAST QUADRANT
225 NM SOUTHEAST QUADRANT
155 NM SOUTHWEST QUADRANT
220 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 290 DEG/ 11 KTS
---
24 HRS, VALID AT:
251800Z --- 20.3N 128.0E
MAX SUSTAINED WINDS - 095 KT, GUSTS 115 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
055 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 145 NM NORTHEAST QUADRANT
105 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
110 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 255 NM NORTHEAST QUADRANT
210 NM SOUTHEAST QUADRANT
175 NM SOUTHWEST QUADRANT
220 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 290 DEG/ 11 KTS
---
36 HRS, VALID AT:
260600Z --- 21.1N 125.7E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 070 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 150 NM NORTHEAST QUADRANT
125 NM SOUTHEAST QUADRANT
100 NM SOUTHWEST QUADRANT
125 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 240 NM NORTHEAST QUADRANT
200 NM SOUTHEAST QUADRANT
195 NM SOUTHWEST QUADRANT
245 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 290 DEG/ 10 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
261800Z --- 21.8N 123.6E
MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 080 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 145 NM NORTHEAST QUADRANT
110 NM SOUTHEAST QUADRANT
105 NM SOUTHWEST QUADRANT
135 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 225 NM NORTHEAST QUADRANT
200 NM SOUTHEAST QUADRANT
210 NM SOUTHWEST QUADRANT
245 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 290 DEG/ 10 KTS
---
72 HRS, VALID AT:
271800Z --- 23.1N 119.5E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
055 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT
165 NM SOUTHEAST QUADRANT
125 NM SOUTHWEST QUADRANT
110 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 280 DEG/ 08 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
281800Z --- 23.7N 115.9E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 120 HR POSIT: 280 DEG/ 08 KTS
---
120 HRS, VALID AT:
291800Z --- 24.2N 112.4E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
---
REMARKS:
242100Z POSITION NEAR 18.9N 132.2E.
TYPHOON 20W (MEGI), LOCATED APPROXIMATELY 544 NM SOUTH-SOUTHEAST
OF KADENA AB, HAS TRACKED WEST-NORTHWESTWARD AT 12 KNOTS OVER THE
PAST SIX HOURS.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 241800Z IS 25 FEET. NEXT
WARNINGS AT 250300Z, 250900Z, 251500Z AND 252100Z.
//

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