235
FZPN03 KNHC 091608
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT AUG 9 2025
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS
SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
SECURITE
E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W
SYNOPSIS VALID 1200 UTC SAT AUG 9.
24 HOUR FORECAST VALID 1200 UTC SUN AUG 10.
48 HOUR FORECAST VALID 1200 UTC MON AUG 11.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM IVO NEAR 21.0N 112.7W 1001 MB AT 1500 UTC AUG 09
MOVING WNW OR 290 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER
EXCEPT 20 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 60 NM N
SEMICIRCLE...30 NM SE QUADRANT AND 0 NM SW QUADRANT WITH SEAS TO
5.5 M. ELSEWHERE WITHIN 21.5N112W TO 21.5N113W TO 21N113W TO 20.5N113W
TO 21N112.5W TO 21N112W TO 21.5N112W WINDS 20 TO 33 KT. SEAS 3.5
TO 4.5 M. REMAINDER OF AREA WITHIN 22N112W TO 22N114W TO 20N115W
TO 19N113W TO 20N112W TO 22N112W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.5 M IN E TO SE SWELL.
.24 HOUR FORECAST TROPICAL STORM IVO NEAR 21.9N 115.7W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM N SEMICIRCLE...20 NM SE QUADRANT AND 0 NM SW
QUADRANT. SEAS 4 M OR GREATER WITHIN 60 NM N SEMICIRCLE...15 NM
SE QUADRANT AND 0 NM SW QUADRANT WITH SEAS TO 5.0 M. ELSEWHERE
WITHIN 22.5N115.5W TO 22.5N116W TO 22N116W TO 21.5N116W TO
21.5N115.5W TO 22.5N115.5W WINDS 20 TO 33 KT. SEAS 3.0 TO 4.0 M.
REMAINDER OF AREA WITHIN 22N114W TO 23N116W TO 23N117W TO 22N118W
TO 20N117W TO 19N115W TO 22N114W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.5 M IN E TO SE SWELL.
.36 HOUR FORECAST POST-TROPICAL IVO NEAR 22.4N 117.6W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. SEAS TO 4.0 M.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW IVO NEAR 22.6N
119.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN
23.5N119W TO 24N120W TO 23.5N120.5W TO 23N120.5W TO 23N120W TO
23N119W TO 23.5N119W WINDS 20 TO 30 KT. SEAS 3.0 TO 3.5 M.
ELSEWHERE WITHIN 23N119W TO 24N120W TO 24N121W TO 22N121W TO
21N121W TO 21N120W TO 23N119W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
.SYNOPSIS AND FORECAST.
.WITHIN 05N120W TO 08N119W TO 10N123W TO 04N129W TO 00N126W TO
03.4S109W TO 05N120W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S
TO SW SWELL.
.24 HOUR FORECAST WITHIN 09N126W TO 11N124W TO 11N126W TO
09N129W TO 06N130W TO 06N128W TO 09N126W WINDS 20 KT OR LESS.
SEAS 2.5 M IN S TO SW SWELL. WITHIN 03S117W TO 02S118W TO 02S120W
TO 03.4S120W TO 03S116W TO 03.4S108W TO 03S117W WINDS 20 KT OR
LESS. SEAS 2.5 M IN S TO SW SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN S TO SW SWELL.
.06 HOUR FORECAST WITHIN 16N136W TO 17N137W TO 17N138W TO
16N138W TO 15N137W TO 15N136W TO 16N136W WINDS 20 KT OR LESS.
SEAS 2.5 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 14.5N139.5W TO 15N140W TO 14.5N140W TO
14N139.5W TO 14.5N139.5W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO
SW SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 TO 3.0 M IN S TO SW SWELL.
.36 HOUR FORECAST WITHIN 30N130W TO 30N138W TO 29.5N134W TO
30N130W WINDS 20 KT OR LESS. SEAS 2.5 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 30N134.5W TO 30N139.5W TO 29N136.5W TO
29.5N135.5W TO 30N134.5W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE
SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC SAT AUG 9...
TROPICAL STORM IVO
NUMEROUS MODERATE TO STRONG WITHIN 75 NM
S SEMICIRCLE. SCATTERED MODERATE ISOLATED ELSEWHERE FROM 16N TO
23N BETWEEN 108W AND 114W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM 1010 MB LOW PRES NEAR 09.5N77W TO 08N89W TO
13N111W TO BEYOND 11.5N140W. SCATTERED MODERATE ISOLATED STRONG
CONVECTION FROM 04N TO 12N E OF 92W...FROM 06N TO 12.5N BETWEEN
94.5W AND 107W....FROM 10N TO 15N BETWEEN 108W AND 119W...AND
FROM 06N TO 13N W OF 123W.
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
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