846
FZPN03 KNHC 072117
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU AUG 7 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC THU AUG 7.
24 HOUR FORECAST VALID 1800 UTC FRI AUG 8.
48 HOUR FORECAST VALID 1800 UTC SAT AUG 9.
.WARNINGS.
..HURRICANE WARNING
.TROPICAL STORM IVO NEAR 18.8N 105.8W 1001 MB AT 2100 UTC AUG 07
MOVING NW OR 305 DEG AT 18 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E SEMICIRCLE
...0 NM SW QUADRANT AND 30 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 120 NM NE QUADRANT...45 NM SE QUADRANT...60 NM SW
QUADRANT...AND 105 NM NW QUADRANT WITH SEAS TO 5.0 M. ELSEWHERE
WITHIN 18N103W TO 20N105W TO 19N107W TO 16N107W TO 15N106W TO
16N104W TO 18N103W...INCLUDING NEAR CABO CORRIENTES...WINDS 20 TO
33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 17N100W TO
18N102W TO 16N104W TO 14N103W TO 14N101W TO 15N100W TO 17N100W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE IVO NEAR 21.1N 110.9W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM OF CENTER EXCEPT 40 NM NE QUADRANT. SEAS 4 M OR
GREATER WITHIN 75 NM NE QUADRANT...45 NM SE AND NW QUADRANTS...
AND 30 NM NW QUADRANT WITH SEAS TO 5.0 M. ELSEWHERE WITHIN
22N109W TO 23N111W TO 22N112W TO 20N112W TO 19N109W TO
22N109W...INCLUDING WITHIN 60 NM OF SHORE...WINDS 20 TO 33 KT.
SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 24N109W TO 23N112W TO
22N113W TO 19N112W TO 18N110W TO 20N108W TO 24N109W...INCLUDING
THE ENTRANCE OF THE GULF OF CALIFORNIA...WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IVO NEAR 21.6N 114.1W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 4 M OR
GREATER WITHIN 60 NM OF CENTER...EXCEPT 30 NM SE QUADRANT WITH
SEAS TO 5.5 M. ELSEWHERE WITHIN 22N113W TO 23N114W TO 22N115W TO
21N115W TO 21N114W TO 21N113W TO 22N113W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 23N113W TO 24N114W TO
24N116W TO 22N117W TO 20N115W TO 22N113W TO 23N113W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
..TROPICAL STORM WARNING
.TROPICAL STORM HENRIETTE NEAR 18.9N 136.8W 1006 MB AT 2100 UTC
AUG 07 MOVING W OR 280 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 40
KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N
SEMICIRCLE AND 30 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN
120 NM NE QUADRANT...45 NM SE QUADRANT...60 NM SW QUADRANT...AND
105 NM NW QUADRANT WITH SEAS TO 6.0 M. ELSEWHERE WITHIN 22N134W
TO 23N136W TO 21N139W TO 18N139W TO 17N135W TO 18N134W TO 22N134W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN
24N134W TO 22N136W TO 23N140W TO 18N140W TO 15N135W TO 20N132W TO
24N134W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM HENRIETTE W OF AREA NEAR 19.9N
142.2W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM
FORCE WINDS AND SEAS 4 M OR GREATER W OF AREA. OVER FORECAST
WATERS WITHIN 22N138W TO 24N140W TO 18N140W TO 20N138W TO 22N138W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST TROPICAL STORM HENRIETTE WELL W OF AREA. OVER
FORECAST WATERS WITHIN 19N140W TO 15N140W TO 15N135W TO 16N135W
TO 19N140W WINDS 20 KT OR LESS. SEAS 2.5 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 07N105W TO 06N117W TO 03N115W TO 01S107W TO 02S99W TO
01N104W TO 07N105W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW
SWELL. WITHIN 00N85W TO 01N87W TO 00N88W TO 01S88W TO 02S86W TO
01S84W TO 00N85W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW
SWELL.
.24 HOUR FORECAST WITHIN 09N111W TO 10N118W TO 08N122W TO
04N125W TO 03N119W TO 05N111W TO 09N111W WINDS 20 KT OR LESS.
SEAS 2.5 M IN MIXED SE AND SW SWELL. WITHIN 02S113W TO 02S120W
TO 03.4S120W TO 03.4S108W TO 02S113W WINDS 20 KT OR LESS. SEAS
2.5 M IN MIXED SE AND SW SWELL.
.48 HOUR FORECAST WITHIN 03N118W TO 10N122W TO 09N127W TO
00N128W TO 03.4S108W TO 03N118W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.
.12 HOUR FORECAST WITHIN 28N111W TO 29N112W TO 28N112W TO
26N111W TO 26N110W TO 27N110W TO 28N111W...INCLUDING THE CENTRAL
GULF OF CALIFORNIA...SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.24 HOUR FORECAST WITHIN 31N113W TO 32N115W TO 30N114W TO
29N113W TO 30N113W TO 31N113W...INCLUDING THE NORTHERN GULF OF
CALIFORNIA...SE TO S WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.12 HOUR FORECAST WITHIN 30N120.5W TO 30N123.5W TO 29.5N123W TO
29N122W TO 29.5N121W TO 30N120.5W WINDS 20 KT OR LESS. SEAS 2.5
M IN MIXED SWELL.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1900 UTC THU AUG 7...
TROPICAL STORM IVO
NUMEROUS MODERATE ISOLATED STRONG FROM 12N
TO 22.5N BETWEEN 101W AND 111.5W.
TROPICAL STORM HENRIETTE
SCATTERED MODERATE FROM 18N TO 21N
BETWEEN CENTER AND 139.5W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM 1011 MB LOW PRES NEAR 10N76W TO ACROSS
PORTIONS OF COSTA RICA TO 08.5N90W TO 11.5N98W TO 06.5N123W TO
12.5N130W TO 11N140W. SCATTERED MODERATE FROM 01N TO 09N BETWEEN
77W AND 86W...FROM 05N TO 12N BETWEEN 101W AND 114W..AND WITHIN
120 NM EITHER SIDE OF MONSOON TROUGH BETWEEN 116W AND 127W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
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