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NHC

Tropical Storm Odalys Forecast Advisory

Advisory Number: 4
0300 UTC MON SEP 21 2026

000
WTPZ21 KNHC 210241
TCMEP1

TROPICAL STORM ODALYS FORECAST/ADVISORY NUMBER 4
NWS NATIONAL HURRICANE CENTER MIAMI FL EP162026
0300 UTC MON SEP 21 2026

TROPICAL STORM CENTER LOCATED NEAR 13.1N 127.7W AT 21/0300Z
POSITION ACCURATE WITHIN 25 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT 11 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1002 MB
MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT.
34 KT....... 60NE 0SE 0SW 40NW.
4 M SEAS....120NE 75SE 30SW 90NW.
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 13.1N 127.7W AT 21/0300Z
AT 21/0000Z CENTER WAS LOCATED NEAR 12.8N 127.3W

FORECAST VALID 21/1200Z 14.1N 128.9W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT... 70NE 30SE 20SW 50NW.

FORECAST VALID 22/0000Z 15.1N 130.0W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 20NE 0SE 0SW 0NW.
34 KT... 80NE 50SE 30SW 60NW.

FORECAST VALID 22/1200Z 15.5N 130.2W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 30NE 20SE 10SW 10NW.
34 KT... 80NE 60SE 30SW 60NW.

FORECAST VALID 23/0000Z 15.6N 129.5W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 30NE 30SE 10SW 20NW.
34 KT... 80NE 60SE 50SW 70NW.

FORECAST VALID 23/1200Z 15.7N 128.6W
MAX WIND 65 KT...GUSTS 80 KT.
64 KT... 15NE 10SE 0SW 10NW.
50 KT... 30NE 30SE 10SW 20NW.
34 KT... 80NE 80SE 70SW 70NW.

FORECAST VALID 24/0000Z 16.0N 127.5W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 15NE 10SE 0SW 10NW.
50 KT... 30NE 30SE 10SW 20NW.
34 KT... 90NE 90SE 70SW 80NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM
ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 25/0000Z 17.3N 125.4W
MAX WIND 75 KT...GUSTS 90 KT.
50 KT... 40NE 30SE 20SW 30NW.
34 KT...100NE 100SE 70SW 80NW.

OUTLOOK VALID 26/0000Z 18.9N 123.7W
MAX WIND 65 KT...GUSTS 80 KT.
50 KT... 40NE 30SE 20SW 30NW.
34 KT...100NE 100SE 70SW 80NW.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.1N 127.7W

NEXT ADVISORY AT 21/0900Z

$$
FORECASTER ROBERTS

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