435  
WTPZ24 KNHC 091440  
TCMEP4  
 
TROPICAL STORM IVO FORECAST/ADVISORY NUMBER 12  
NWS NATIONAL HURRICANE CENTER MIAMI FL EP092025  
1500 UTC SAT AUG 09 2025  
 
TROPICAL STORM CENTER LOCATED NEAR 21.0N 112.7W AT 09/1500Z  
POSITION ACCURATE WITHIN 20 NM  
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT 5 KT  
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB  
MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT.  
50 KT....... 15NE 0SE 0SW 15NW.  
34 KT....... 30NE 30SE 20SW 30NW.  
4 M SEAS.... 60NE 30SE 0SW 60NW.  
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 21.0N 112.7W AT 09/1500Z  
AT 09/1200Z CENTER WAS LOCATED NEAR 20.9N 112.4W  
 
FORECAST VALID 10/0000Z 21.4N 113.8W  
MAX WIND 45 KT...GUSTS 55 KT.  
34 KT... 30NE 30SE 20SW 30NW.  
 
FORECAST VALID 10/1200Z 21.9N 115.7W  
MAX WIND 40 KT...GUSTS 50 KT.  
34 KT... 30NE 20SE 0SW 30NW.  
 
FORECAST VALID 11/0000Z 22.4N 117.6W...POST-TROPICAL  
MAX WIND 35 KT...GUSTS 45 KT.  
34 KT... 20NE 0SE 0SW 20NW.  
 
FORECAST VALID 11/1200Z 22.6N 119.7W...POST-TROP/REMNT LOW  
MAX WIND 30 KT...GUSTS 40 KT.  
 
FORECAST VALID 12/0000Z 22.7N 121.9W...POST-TROP/REMNT LOW  
MAX WIND 25 KT...GUSTS 35 KT.  
 
FORECAST VALID 12/1200Z 22.6N 124.3W...POST-TROP/REMNT LOW  
MAX WIND 20 KT...GUSTS 30 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 13/1200Z...DISSIPATED  
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.0N 112.7W  
 
NEXT ADVISORY AT 09/2100Z  
 
 
FORECASTER BERG  
 
 
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