964
FZPN03 KNHC 172004
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED SEP 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED SEP 17.
24 HOUR FORECAST VALID 1800 UTC THU SEP 18.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 19.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
LOW PRES...INVEST EP96
NEAR 15N107W 1007 MB. WITHIN 18N104W
TO 18N107W TO 17N107W TO 15N105W TO 16N104W TO 18N104W WINDS 20
TO 25 KT. SEAS 2.5 TO 3.0 M. WITHIN 12N108W TO 12N109W TO
11N111W TO 10N112W TO 10N110W TO 11N108W TO 12N108W WINDS 20 TO
25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 15N100W TO 17N105W TO
13N106W TO 11N113W TO 08N112W TO 07N100W TO 15N100W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
24 HOUR FORECAST LOW PRES...INVEST EP96
POSSIBLE TROPICAL
CYCLONE...NEAR 16N111.5W 1006 MB. WITHIN 18N106W TO 19N110W TO
15N114W TO 13N112W TO 14N108W TO 16N106W TO 18N106W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N104W TO 16N106W TO
13N110W TO 10N111W TO 08N107W TO 12N104W TO 14N104W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
48 HOUR FORECAST LOW PRES...INVEST EP96
POSSIBLE TROPICAL
CYCLONE...NEAR 17.5N114W 1005 MB. WITHIN 17N110W TO 19N111W TO
18N117W TO 17N117W TO 15N113W TO 16N111W TO 17N110W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M.
.WITHIN 06N80W TO 07N81W TO 04N86W TO 02N86W TO 01N82W TO 04N80W
TO 06N80W...INCLUDING NEAR THE AZUERO PENINSULA...WINDS 20 KT OR
LESS. SEAS 2.5 M IN S TO SW SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.06 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO
15N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 20 TO 25 KT. SEAS BUILDING TO 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.06 HOUR FORECAST WEAK COLD FRONT FROM 30N136.5W TO 28N140W.
WITHIN 30N138W TO 30N140W TO 29.5N140W TO 30N138.5W TO 30N138W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 30N133.5W TO
26N140W. WITHIN 30N131W TO 30N140W TO 27N140W TO 29N136W TO
30N131W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED NE AND NW
SWELL.
.48 HOUR FORECAST FRONTAL TROUGH FROM 30N131.5W TO 26N140W.
WITHIN 30N126W TO 30N140W TO 26N140W TO 27N136W TO 29N133W TO
30N126W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1900 UTC WED SEP 17...
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH FROM LOW PRES NEAR 10N74W TO ACROSS PORTIONS OF
PANAMA AND COSTA RICA TO LOW PRES...INVEST EP96...NEAR 15N107W
TO LOW PRES NEAR 11.5N132.5W TO BEYOND 10N140W. SCATTERED TO
NUMEROUS MODERATE ISOLATED STRONG FROM 03N TO 10.5N BETWEEN 77W
AND 91W...FROM 05N TO 15.5N BETWEEN 93W AND 101W...AND FROM 09N
TO 18.5N BETWEEN 103W AND 116.5W.
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
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