Marine/aviation Tropical Cyclone Advisory

042
WTPZ24 KNHC 251442
TCMEP4
 
TROPICAL STORM ISELLE FORECAST/ADVISORY NUMBER   9
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP092026
1500 UTC TUE AUG 25 2026
 
TROPICAL STORM CENTER LOCATED NEAR 20.9N 121.1W AT 25/1500Z
POSITION ACCURATE WITHIN  30 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT   9 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  988 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT....... 80NE  40SE   0SW  50NW.
34 KT.......140NE 180SE  60SW  90NW.
4 M SEAS....240NE 210SE 180SW 180NW.
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 20.9N 121.1W AT 25/1500Z
AT 25/1200Z CENTER WAS LOCATED NEAR 20.8N 120.7W
 
FORECAST VALID 26/0000Z 21.4N 122.5W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 60NE  30SE   0SW  40NW.
34 KT...140NE 150SE  50SW  90NW.
 
FORECAST VALID 26/1200Z 22.0N 124.1W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT...120NE 110SE  40SW  90NW.
 
FORECAST VALID 27/0000Z 22.7N 126.0W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 70NE  50SE  20SW  50NW.
 
FORECAST VALID 27/1200Z 23.3N 127.9W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 40NE   0SE   0SW  30NW.
 
FORECAST VALID 28/0000Z 23.8N 129.8W...POST-TROP/REMNT LOW
MAX WIND  30 KT...GUSTS  40 KT.
 
FORECAST VALID 28/1200Z 24.2N 131.6W...POST-TROP/REMNT LOW
MAX WIND  25 KT...GUSTS  35 KT.
 
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 29/1200Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.9N 121.1W
 
NEXT ADVISORY AT 25/2100Z