728
FZPN03 KNHC 261510
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC WED AUG 26 2026
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED AUG 26.
24 HOUR FORECAST VALID 1200 UTC THU AUG 27.
48 HOUR FORECAST VALID 1200 UTC FRI AUG 28.
.WARNINGS.
..TROPICAL STORM WARNING
.TROPICAL STORM ISELLE NEAR 22.2N 124.0W 999 MB AT 1500 UTC AUG
26 MOVING WNW OR 295 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM NE
QUADRANT...170 NM SE QUADRANT...60 NM SW QUADRANT...AND 120 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM S SEMICIRCLE...180
NM NE QUADRANT AND 150 NM NW QUADRANT WITH SEAS TO 6.5 M.
ELSEWHERE WITHIN 26N122W TO 25N126W TO 22N127W TO 19N124W TO
21N119W TO 26N122W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
REMAINDER OF AREA WITHIN 30N120W TO 26N124W TO 30N125W TO 21N130W
TO 18N126W TO 22N117W TO 30N120W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.5 IN MIXED SWELL.
.12 HOUR FORECAST POST-TROPICAL ISELLE NEAR 22.5N 125.3W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 23.2N
127.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS 4 M OR
GREATER WITHIN 75 NM N SEMICIRCLE...AND 30 NM S SEMICIRCLE WITH
SEAS TO 4.5 M. ELSEWHERE WITHIN 24N125W TO 26N127W TO 26N129W TO
25N130W TO 23N130W TO 23N126W TO 24N125W WINDS 20 TO 30 KT. SEAS
2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 26N124W TO 29N128W TO
25N133W TO 20N132W TO 20N130W TO 23N124W TO 26N124W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ISELLE NEAR 24.5N
130.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN
26N129W TO 27N130W TO 27N133W TO 26N133W TO 25N132W TO 25N129W
TO 26N129W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN
27N128W TO 29N130W TO 28N133W TO 27N134W TO 23N134W TO 25N129W
TO 27N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED
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.
LOW PRES...INVEST EP93
NEAR 09N107W 1007 MB. WITHIN 08N106W
TO 08N110W TO 07N111W TO 06N108W TO 07N106W TO 08N106W WINDS 20
TO 25 KT. SEAS 2.5 TO 3.0 M.
24 HOUR FORECAST LOW PRES...INVEST EP93
POSSIBLE TROPICAL
CYCLONE...NEAR 11N110W 1004 MB. WITHIN 13N105W TO 15N107W TO
15N112W TO 08N115W TO 05N113W TO 06N108W TO 13N105W WINDS 20 TO
30 KT. SEAS 2.5 TO 4.0 M.
48 HOUR FORECAST LOW PRES...INVEST EP93
POSSIBLE TROPICAL
CYCLONE...NEAR 13.5N114.5W 1000 MB. WITHIN 18N109W TO 18N117W
TO 08N119W TO 07N115W TO 08N110W TO 11N108W TO 18N109W WINDS 20
TO 30 KT. SEAS 3.0 TO 4.5 M. ELSEWHERE WITHIN 17N108W TO 20N113W
TO 17N119W TO 09N120W TO 03N113W TO 04N107W TO 17N108W WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.WITHIN 15N94W TO 16N94W TO 16N96W TO 15N96W TO 14N96W TO 14N95W
TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.WITHIN 11N86W TO 11N88W TO 10N89W TO 10N88W TO 10N87W TO 11N86W
..INCLUDING THE GULF OF PAPAGAYO
NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 12N86W TO 11N90W TO 11N91W TO 10N90W TO
09N89W TO 11N86W TO 12N86W...INCLUDING THE GULF OF PAPAGAYO...
NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.WITHIN 02N128W TO 01N134W TO 00N135W TO 03.4S120W TO 03.4S118W
TO 01S120W TO 02N128W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
S TO SW SWELL.
.24 HOUR FORECAST WITHIN 05N106W TO 05N113W TO 01N118W TO
00N131W TO 03.4S120W TO 03.4S106W TO 05N106W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.18 HOUR FORECAST BROAD LOW PRES NEAR 11.5N133W 1008 MB. WITHIN
11N131W TO 12N134W TO 11N135W TO 10N135W TO 09N134W TO 09N131W TO
11N131W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST LOW PRES NEAR 12N132W 1007 MB. WITHIN 12N131W
TO 12N132W TO 10N135W TO 08N135W TO 08N133W TO 09N131W TO
12N131W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE
NEAR
12.5N131W 1004 MB. WITHIN 15N129W TO 14N132W TO 10N137W TO
07N138W TO 06N134W TO 10N128W TO 15N129W WINDS 20 TO 30 KT. SEAS
2.5 TO 3.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1440 UTC WED AUG 26...
TROPICAL STORM ISELLE
SCATTERED MODERATE ISOLATED STRONG
WITHIN NE QUADRANT.
LOW PRES...INVEST EP93
SCATTERED TO NUMEROUS MODERATE TO STRONG
FROM 02N TO 15N BETWEEN 88W AND 117W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM LOW PRES AT 10.5N76W TO 10N88W TO LOW
PRES...INVEST EP93...NEAR 09N107W TO 15N116W THEN RESUMES S OF
TROPICAL ISELLE FROM 13.5N55W TO BEYOND 10N140W. ISOLATED TO
WIDELY SCATTERED MODERATE TO STRONG FROM 02N TO 10N BETWEEN 77W
AND 88W...AND WITHIN 360 NM SSW OF MONSOON TROUGH BETWEEN 118W
AND 140W. SIMILAR CONVECTION WITHIN 150 NM N OF MONSOON TROUGH
BETWEEN 135W AND 140W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
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