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ABPW10 PGTW 151900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND
SOUTH PACIFIC OCEANS REISSUED/151900Z-160600ZAUG2018//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/151354ZAUG2018//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/151355ZAUG2018//
REF/C/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/150152ZAUG2018//
REF/D/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/151353ZAUG2018//
REF/E/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/151351ZAUG2018//
NARR/REFS A, B, D AND E ARE TROPICAL CYCLONE WARNINGS. REF C IS A
TROPICAL CYCLONE FINAL WARNING.//
RMKS/
1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA):
A. TROPICAL CYCLONE SUMMARY:
(1) AT 151200Z, TROPICAL STORM 21W (RUMBIA) WAS LOCATED NEAR
29.1N 125.9E, APPROXIMATELY 186 NM NORTH- NORTHWEST OF KADENA AB,
AND HAD TRACKED NORTHWESTWARD AT 13 KNOTS OVER THE PAST SIX HOURS.
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING
TO 45 KNOTS. SEE REF A (WTPN34 PGTW 151500) FOR FURTHER DETAILS.
(2) AT 151200Z, TROPICAL DEPRESSION 22W (TWENTYTWO) WAS
LOCATED NEAR 12.5N 144.4E, APPROXIMATELY 53 NM SOUTH-SOUTHWEST OF
HAGATNA, GUAM, AND HAD TRACKED NORTHWESTWARD AT 07 KNOTS OVER THE
PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT
25 KNOTS GUSTING TO 35 KNOTS. SEE REF B (WTPN35 PGTW 151500) FOR
FURTHER DETAILS.
(3) AT 150000Z, TROPICAL DEPRESSION 10E (HECTOR) WAS LOCATED
NEAR 29.3N 170.9E, APPROXIMATELY 1317 NM NORTHWEST OF JOHNSTON
ISLAND, AND HAD TRACKED NORTHWESTWARD AT 20 KNOTS OVER THE PAST SIX
HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 30 KNOTS
GUSTING TO 40 KNOTS. SEE REF C (WTPN32 PGTW 150300) FOR THE FINAL
WARNING ON THIS SYSTEM.
(4) AT 151200Z, TROPICAL STORM 20W (BEBINCA) WAS LOCATED NEAR
21.0N 110.9E, APPROXIMATELY 200 NM WEST- SOUTHWEST OF HONG KONG,
AND HAD TRACKED WESTWARD AT 06 KNOTS OVER THE PAST SIX HOURS.
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING
TO 45 KNOTS. SEE REF D (WTPN33 PGTW 151500) FOR FURTHER DETAILS.
(5) AT 151200Z, TROPICAL DEPRESSION 19W (LEEPI) WAS LOCATED
NEAR 35.9N 129.6E, APPROXIMATELY 54 NM NORTH-NORTHEAST OF PUSAN,
SOUTH KOREA, AND HAD TRACKED NORTH- NORTHEASTWARD AT 10 KNOTS OVER
THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED
AT 30 KNOTS GUSTING TO 40 KNOTS. SEE REF E (WTPN31 PGTW 151500) FOR
FURTHER DETAILS.
(6) NO OTHER TROPICAL CYCLONES.
B. TROPICAL DISTURBANCE SUMMARY:
(1) THE AREA OF CONVECTION (INVEST 91W) PREVIOUSLY LOCATED
NEAR 12.7N 167.2E, IS NOW LOCATED NEAR 13.4N 163.0E, APPROXIMATELY
750 NM EAST-NORTHEAST OF CHUUK. ANIMATED ENHANCED INFRARED SATELLITE
IMAGERY SHOWS DEEP CONVECTION BUILDING OVER A SLOWLY CONSOLIDATING
LOW LEVEL CIRCULATION CENTER. A 151506Z AMSR2 GW1 89GHZ MICROWAVE
IMAGE DEPICTS FRAGMENTED BANDING BEGINNING TO FORM AROUND THE
SLIGHTLY ELONGATED LOW LEVEL CIRCULATION. THE DISTURBANCE IS LOCATED
IN AN AREA OF EXCELLENT UPPER LEVEL OUTFLOW, LOW (10-15 KT) VERTICAL
WIND SHEAR, AND VERY WARM SEA SURFACE TEMPERATURES (28-30 C). GLOBAL
MODELS ARE IN GOOD AGREEMENT THAT THE SYSTEM WILL GRADUALLY DEVELOP
AS IT TRACKS WESTWARD OVER THE NEXT FEW DAYS. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1003 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS UPGRADED TO MEDIUM.
(2) NO OTHER SUSPECT AREAS.
2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST):
A. TROPICAL CYCLONE SUMMARY: NONE.
B. TROPICAL DISTURBANCE SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 1.B.(1) TO
MEDIUM.//
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