Central Pacific Basin Tropical Cyclones

Tropical Storm Greg Forecast Advisory



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WTPA23 PHFO 161431
TCMCP3

TROPICAL STORM GREG FORECAST/ADVISORY NUMBER  11
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP082023
1500 UTC WED AUG 16 2023

NOTICE... LAND-BASED TROPICAL CYCLONE WATCHES AND WARNINGS ARE NO
LONGER INCLUDED IN THE TROPICAL CYCLONE FORECAST/ADVISORY...(TCM).
CURRENT LAND-BASED COASTAL WATCHES AND WARNINGS CAN BE FOUND IN THE
MOST RECENTLY ISSUED TROPICAL CYCLONE PUBLIC ADVISORY...(TCP).

TROPICAL STORM CENTER LOCATED NEAR 11.8N 151.1W AT 16/1500Z
POSITION ACCURATE WITHIN  25 NM

PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 60NE  10SE  10SW  60NW.
12 FT SEAS.. 70NE  15SE  20SW  70NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 11.8N 151.1W AT 16/1500Z
AT 16/1200Z CENTER WAS LOCATED NEAR 11.7N 150.5W

FORECAST VALID 17/0000Z 12.1N 153.0W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 60NE  10SE  10SW  60NW.

FORECAST VALID 17/1200Z 12.2N 155.3W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 60NE  10SE  10SW  60NW.

FORECAST VALID 18/0000Z 12.1N 157.8W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 50NE  10SE  10SW  50NW.

FORECAST VALID 18/1200Z 11.8N 160.5W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  40NW.

FORECAST VALID 19/0000Z 11.4N 163.2W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  40NW.

FORECAST VALID 19/1200Z 11.1N 165.8W
MAX WIND  30 KT...GUSTS  40 KT.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY

OUTLOOK VALID 20/1200Z 10.1N 170.8W...POST-TROP/REMNT LOW
MAX WIND  25 KT...GUSTS  35 KT.

OUTLOOK VALID 21/1200Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 11.8N 151.1W

NEXT ADVISORY AT 16/2100Z

$$
FORECASTER M BALLARD




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