109
FZPN03 KNHC 180233
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SAT JUL 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT JUL 18.
24 HOUR FORECAST VALID 0000 UTC SUN JUL 19.
48 HOUR FORECAST VALID 0000 UTC MON JUL 20.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ELIDA NEAR 17.4N 122.5W 992 MB AT 0300 UTC JUL
18 MOVING NW OR 305 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE
QUADRANT...170 NM SE QUADRANT...50 NM SW QUADRANT...AND 90 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 360 NM NE QUADRANT...300 NM
SE QUADRANT...150 NM SW QUADRANT...AND 180 NM NW QUADRANT WITH
SEAS TO 6.5 M. ELSEWHERE WITHIN 21N116W TO 22N120W TO 20N126W TO
14N125W TO 12N122W TO 15N114W TO 21N116W WINDS 20 TO 33 KT. SEAS
2.5 TO 4.0 M. REMAINDER OF AREA WITHIN 22N115W TO 23N127W TO
16N127W TO 09N123W TO 09N119W TO 14N113W TO 22N115W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM ELIDA NEAR 19.9N 124.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 140 NM NE QUADRANT...150 NM SE QUADRANT...60 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300
NM OF CENTER WITH SEAS TO 7.5 M. ELSEWHERE WITHIN 26N121W TO
27N126W TO 24N131W TO 18N130W TO 16N123W TO 19N117W TO 26N121W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA WITHIN
25N116W TO 28N127W TO 22N135W TO 10N124W TO 11N118W TO 18N115W TO
25N116W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM ELIDA NEAR 23.7N 126.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 120 NM E SEMICIRCLE...70 NM SW QUADRANT AND 110 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 210 NM E SEMICIRCLE...
AND 300 NM W SEMICIRCLE WITH SEAS TO 7.0 M. ELSEWHERE WITHIN
25N120W TO 29N123W TO 29N127W TO 23N133W TO 20N130W TO 21N123W TO
25N120W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M. REMAINDER OF AREA
WITHIN 26N119W TO 29N131W TO 22N138W TO 19N138W TO 14N125W TO
20N119W TO 26N119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 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.

.WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30
KT. SEAS BUILDING TO 2.5 TO 3.0 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 11N86W TO 12N87W TO 11N89W TO 10N89W TO 10N88W TO 10N86W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
30 KT. SEAS LESS THAN 2.5 M. WITHIN 10N88W TO 10N89W TO 10N91W
TO 10N92W TO 09N91W TO 08N90W TO 10N88W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 11N86W TO 12N87W TO 11N89W TO 10N89W TO
10N88W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E
WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.12 HOUR FORECAST TROPICAL WAVE NEAR 105W. WITHIN 11N104W TO
12N104W TO 11N106W TO 10N105W TO 09N106W TO 08N104W TO 11N104W
WINDS 20 TO 30 KT. SEAS BUILDING TO 2.5 TO 3.0 M.
.24 HOUR FORECAST LOW PRES...INVEST EP97...POSSIBLE TROPICAL
CYCLONE...NEAR 11N108W 1004 MB. WITHIN 13N104W TO 14N106W TO
13N109W TO 09N108W TO 08N106W TO 10N104W TO 13N104W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW PRES...INVEST EP97...POSSIBLE TROPICAL
CYCLONE...NEAR 11.5N112W 1000 MB. WITHIN 15N108W TO 15N112W TO
14N114W TO 11N115W TO 09N111W TO 11N108W TO 15N108W WINDS 20 TO
30 KT. SEAS 3.0 TO 4.0 M. ELSEWHERE WITHIN 14N106W TO 18N108W TO
17N114W TO 10N115W TO 08N111W TO 09N108W TO 14N106W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.

.12 HOUR FORECAST WITHIN 02S119W TO 02S120W TO 03.4S120W TO
03.4S118W TO 03S118W TO 02S119W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 01S111W TO 01S114W TO 02S115W TO
01S120W TO 03.4S120W TO 03.4S109W TO 01S111W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 01N112W TO 05N109W TO 06N112W TO
02N117W TO 03.4S120W TO 03.4S106W TO 01N112W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 0150 UTC SAT JUL 18...

.TROPICAL STORM ELIDA...NUMEROUS MODERATE TO STRONG WITHIN 90
NM S QUADRANT...WITHIN 150 NM W QUADRANT. SCATTERED TO NUMEROUS
MODERATE ELSEWHERE WITHIN 420 NM E QUADRANT...300 NM NW
SEMICIRCLE...AND WITHIN 480 NM S QUADRANT. SIMILAR CONVECTION IS
BETWEEN 480 NM AND 1200 NM SW QUADRANT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM LOW PRES NEAR 10N74.5W TO 08N91W TO LOW
PRES NEAR 10N105W TO 17N114W...THEN RESUMES SW OF ELIDA FROM
14N125W TO 09N140W. SCATTERED TO NUMEROUS MODERATE TO STRONG
WITHIN 420 NM EITHER SIDE OF MONSOON TROUGH E OF ELIDA.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.