WTPN32 PGTW 250900 MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TYPHOON 12W (KROVANH) WARNING NR 037 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 250600Z3 --- NEAR 20.8N0 108.9E8 MOVEMENT PAST SIX HOURS - 290 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON EYE FIXED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 050 KT WINDS - 050 NM OVER WATER RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT OVER WATER 120 NM SOUTHEAST QUADRANT OVER WATER 120 NM SOUTHWEST QUADRANT OVER WATER 105 NM NORTHWEST QUADRANT OVER WATER REPEAT POSIT: 20.8N0 108.9E8 --- FORECASTS: 12 HRS, VALID AT: 251800Z6 --- 21.8N1 107.1E9 MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND RADIUS OF 050 KT WINDS - 030 NM OVER WATER RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT OVER WATER 110 NM SOUTHEAST QUADRANT OVER WATER 070 NM SOUTHWEST QUADRANT OVER WATER 070 NM NORTHWEST QUADRANT OVER WATER VECTOR TO 24 HR POSIT: 310 DEG/ 10 KTS --- 24 HRS, VALID AT: 260600Z4 --- 23.0N5 105.4E0 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 250900Z6 POSITION NEAR 21.1N4 108.4E3. TYPHOON (TY) 12W (KROVANH), LOCATED OVER THE GULF OF TONKIN, HAS TRACKED WEST-NORTHWESTWARD AT 11 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 250530Z5 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 77 AND 90 KNOTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 250600Z3 IS 24 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 251500Z3, 252100Z0 AND 260300Z1.// NNNN