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NHC

Tropical Storm Lala Forecast Advisory

Advisory Number: 20
0900 UTC MON AUG 17 2026

364 
WTPA22 PHFO 170835
TCMCP2

TROPICAL STORM LALA FORECAST/ADVISORY NUMBER 20
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI CP012026
ISSUED BY NWS NATIONAL HURRICANE CENTER MIAMI FL
0900 UTC MON AUG 17 2026

TROPICAL STORM CENTER LOCATED NEAR 20.7N 162.6W AT 17/0900Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 11 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.
50 KT....... 40NE 0SE 0SW 40NW.
34 KT....... 80NE 50SE 50SW 90NW.
4 M SEAS....210NE 90SE 120SW 150NW.
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 20.7N 162.6W AT 17/0900Z
AT 17/0600Z CENTER WAS LOCATED NEAR 20.7N 162.0W

FORECAST VALID 17/1800Z 20.6N 164.0W
MAX WIND 50 KT...GUSTS 60 KT.
50 KT... 40NE 0SE 0SW 40NW.
34 KT...100NE 50SE 50SW 80NW.

FORECAST VALID 18/0600Z 20.5N 165.9W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 40NE 0SE 0SW 40NW.
34 KT...100NE 60SE 50SW 80NW.

FORECAST VALID 18/1800Z 20.6N 167.7W
MAX WIND 60 KT...GUSTS 75 KT.
50 KT... 50NE 20SE 0SW 40NW.
34 KT...100NE 70SE 50SW 90NW.

FORECAST VALID 19/0600Z 20.9N 169.2W
MAX WIND 70 KT...GUSTS 85 KT.
64 KT... 25NE 0SE 0SW 25NW.
50 KT... 50NE 30SE 20SW 50NW.
34 KT...110NE 80SE 50SW 90NW.

FORECAST VALID 19/1800Z 21.7N 170.7W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 30NE 0SE 0SW 25NW.
50 KT... 60NE 30SE 20SW 50NW.
34 KT...110NE 80SE 60SW 90NW.

FORECAST VALID 20/0600Z 22.6N 171.9W
MAX WIND 75 KT...GUSTS 90 KT.
64 KT... 30NE 20SE 0SW 25NW.
50 KT... 60NE 40SE 30SW 50NW.
34 KT...110NE 80SE 60SW 90NW.

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 21/0600Z 24.5N 172.9W
MAX WIND 70 KT...GUSTS 85 KT.
50 KT... 50NE 40SE 30SW 40NW.
34 KT...110NE 90SE 60SW 100NW.

OUTLOOK VALID 22/0600Z 26.9N 172.2W
MAX WIND 70 KT...GUSTS 85 KT.
50 KT... 60NE 40SE 30SW 40NW.
34 KT...130NE 110SE 70SW 100NW.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.7N 162.6W

NEXT ADVISORY AT 17/1500Z

$$
FORECASTER GIBBS/EVANS

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