JTWC - Tropical Cyclone Advisory 22 - Typhoon Sonca

WTPN32 PGTW 200300
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL STORM 19W (SONCA) WARNING NR 022
DOWNGRADED FROM TYPHOON 19W
02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
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WARNING POSITION:
200000Z --- NEAR 39.9N 155.5E
MOVEMENT PAST SIX HOURS - 070 DEGREES AT 32 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT
120 NM SOUTHEAST QUADRANT
120 NM SOUTHWEST QUADRANT
135 NM NORTHWEST QUADRANT
REPEAT POSIT: 39.9N 155.5E
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FORECASTS:
12 HRS, VALID AT:
201200Z --- 42.0N 164.7E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
VECTOR TO 24 HR POSIT: 080 DEG/ 41 KTS
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24 HRS, VALID AT:
210000Z --- 43.1N 175.7E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
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REMARKS:
200300Z POSITION NEAR 40.4N 157.8E.
TROPICAL STORM (TS) 19W (SONCA), LOCATED APPROXIMATELY 650 NM EAST
OF MISAWA, JAPAN, HAS TRACKED EAST-NORTHEASTWARD AT 32 KNOTS OVER
THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY
VERIFIES THE EXTRA-TROPICAL TRANSITION PROCESS (XTT) IS WELL
UNDERWAY. THE CLOUD SHIELD IS EXPANDING AS TS 19W MERGES WITH A
FRONTAL BOUNDARY OVER THE NORTHWESTERN PACIFIC. TS 19W WILL COMPLETE
XTT AND TRANSITION INTO A HIGH-GALE TO STORM FORCE MID-LATITUDE LOW
WITHIN THE NEXT 12 HOURS. THIS IS THE FINAL WARNING ON THIS SYSTEM
BY THE JOINT TYPHOON WARNING CENTER (NAVMARFCSTCEN). THE SYSTEM WILL
BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 200000Z IS 15 FEET. REFER TO TYPHOON 18W (ROKE)
WARNINGS (WTPN31 PGTW)FOR SIX-HOURLY UPDATES.//