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NHC

Tropical Storm Lowell Forecast Advisory

Advisory Number: 15
0900 UTC MON AUG 31 2026

185 
WTPA24 PHFO 310833
TCMCP4

TROPICAL STORM LOWELL FORECAST/ADVISORY NUMBER 15
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP122026
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0900 UTC MON AUG 31 2026

TROPICAL STORM CENTER LOCATED NEAR 13.0N 144.2W AT 31/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 10 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.
50 KT....... 0NE 0SE 0SW 20NW.
34 KT....... 30NE 30SE 60SW 60NW.
4 M SEAS.... 45NE 0SE 30SW 45NW.
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 13.0N 144.2W AT 31/0900Z
AT 31/0600Z CENTER WAS LOCATED NEAR 13.0N 143.7W

FORECAST VALID 31/1800Z 13.0N 145.6W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 20NE 0SE 0SW 20NW.
34 KT... 40NE 40SE 70SW 60NW.

FORECAST VALID 01/0600Z 13.2N 147.5W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 10NE 0SE 0SW 0NW.
50 KT... 20NE 20SE 0SW 20NW.
34 KT... 50NE 40SE 60SW 60NW.

FORECAST VALID 01/1800Z 13.4N 149.5W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 15NE 0SE 0SW 10NW.
50 KT... 30NE 20SE 20SW 30NW.
34 KT... 60NE 60SE 60SW 70NW.

FORECAST VALID 02/0600Z 13.7N 151.6W
MAX WIND 85 KT...GUSTS 105 KT.
64 KT... 20NE 15SE 0SW 20NW.
50 KT... 30NE 30SE 20SW 30NW.
34 KT... 80NE 60SE 60SW 80NW.

FORECAST VALID 02/1800Z 14.0N 153.4W
MAX WIND 90 KT...GUSTS 110 KT.
64 KT... 25NE 20SE 10SW 25NW.
50 KT... 40NE 40SE 30SW 40NW.
34 KT... 90NE 70SE 60SW 90NW.

FORECAST VALID 03/0600Z 14.4N 155.5W
MAX WIND 95 KT...GUSTS 115 KT.
64 KT... 30NE 20SE 10SW 25NW.
50 KT... 40NE 30SE 30SW 40NW.
34 KT...100NE 70SE 60SW 100NW.

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 04/0600Z 15.1N 158.5W
MAX WIND 90 KT...GUSTS 110 KT.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...120NE 70SE 60SW 110NW.

OUTLOOK VALID 05/0600Z 15.6N 160.8W
MAX WIND 90 KT...GUSTS 110 KT.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...110NE 70SE 60SW 90NW.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.0N 144.2W

NEXT ADVISORY AT 31/1500Z

$$
FORECASTER GIBBS

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