319
FZPN03 KNHC 182129
HSFEP2
HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC FRI SEP 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC FRI SEP 18.
24 HOUR FORECAST VALID 1800 UTC SAT SEP 19.
48 HOUR FORECAST VALID 1800 UTC SUN SEP 20.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
LOW PRES...INVEST EP98
NEAR 11N118W 1009 MB. WINDS 20 KT OR
LESS. SEAS LESS THAN 2.5 M. NUMEROUS MODERATE ISOLATED STRONG
FROM 08N TO 13N BETWEEN 117W AND 120W.
24 HOUR FORECAST LOW PRES...INVEST EP98
POSSIBLE TROPICAL
CYCLONE...NEAR 11N122W 1008 MB. WITHIN 12N120W TO 15N121W TO
15N123W TO 13N124W TO 12N123W TO 12N120W WINDS 20 TO 25 KT.
SEAS 2.5 TO 3 M.
48 HOUR FORECAST LOW PRES...INVEST EP98
POSSIBLE TROPICAL
CYCLONE...NEAR 11N126W 1007 MB. WITHIN 11N122W TO 13N123W TO
15N125W TO 11N126W TO 09N127W TO 09N123W TO 11N122W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M.
TROPICAL WAVE FROM 16N105W TO 06N106W WITH LOW PRES
INVEST
EP99...NEAR 07N106W 1010 MB. WINDS 20 KT OR LESS. SEAS LESS THAN
2.5 M.
.24 HOUR FORECAST TROPICAL WAVE FROM 16N107W TO 06N110W WITH LOW
PRES...INVEST EP99...POSSIBLE TROPICAL CYCLONE...NEAR 11N107W
1008 MB. WITHIN 10N107W TO 11N108W TO 10N109W TO 08N109W TO
07N108W TO 08N106W TO 10N107W S TO SW WINDS 20 TO 25 KT. SEAS
2.5 TO 3 M.
48 HOUR FORECAST LOW PRES...INVEST EP99
POSSIBLE TROPICAL
CYCLONE...NEAR 14N107W 1005 MB. WITHIN 11N106W TO 13N105W TO
15N105W TO 15N107W TO 13N106W TO 09N109W TO 10N105W TO 11N106W
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
LOW PRES...FORMER TROPICAL DEPRESSION FIFTEEN
NEAR 17N137W
1008 MB. WITHIN 21N128W TO 22N140W TO 14N140W TO 16N131W TO
19N128W TO 21N128W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST LOW PRES NEAR 15N140W 1008 MB. WITHIN 22N132W
TO 23N135W TO 22N140W TO 19N140W TO 18N134W TO 22N132W NE TO E
WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LOW PRES WELL W OF AREA. WITHIN 16N130W TO
21N132W TO 24N135W TO 26N140W TO 19N140W TO 16N130W NE TO E WINDS
20 TO 25 KT. SEAS 2.5 TO 3 M.
.WITHIN 16N94W TO 16N95W TO 15N97W TO 13N97W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.WITHIN 12N86W TO 12N88W TO 11N89W TO 10N89W TO 09N87W TO 10N86W
TO 12N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.WITHIN 28N115W TO 29N114W TO 29N116W TO 28N116W TO 26N114W TO
27N114W TO 28N115W...INCLUDING SEBASTIAN VIZCAINO BAY AND WITHIN
60 NM OF SHORE...NW WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST 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 2115 UTC FRI SEP 18...
LOW PRES NEAR 17N137W
NUMEROUS MODERATE WITHIN 180 NM NE
QUADRANT AND 90 NM SE QUADRANT.
LOW PRES...INVEST EP98...NEAR 11N118W
NUMEROUS MODERATE
ISOLATED STRONG FROM 08N TO 13N BETWEEN 117W AND 120W.
LOW PRES...INVEST EP99...NEAR 07N106W
SCATTERED MODERATE
ISOLATED STRONG FROM 07N TO 12N BETWEEN 103W AND 108W.
.NUMEROUS MODERATE TO STRONG FROM 04N TO 09N BETWEEN 78W AND 82W
AND FROM 12N TO 18N BETWEEN 126W AND 133W.
.SCATTERED MODERATE ISOLATED STRONG FROM 17N TO 23N BETWEEN
105.5W AND 111W.
INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 09N90W TO 09N100W TO
06N101W TO 06N111W TO 10N114W TO LOW PRES...INVEST EP98...NEAR
11N118W TO 12N126W. IT RESUMES AT 13N138W TO BEYOND 12N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 300 N OF THE TROUGH
BETWEEN 93W AND 103W...WITHIN 300 NM S OF THE TROUGH BETWEEN 90W
AND 102W AND WITHIN 120 NM S OF THE TROUGH BETWEEN 120W AND 126W.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
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