259 
FZPN03 KNHC 120842
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC WED JUL 12 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC WED JUL 12.
24 HOUR FORECAST VALID 0600 UTC THU JUL 13.
48 HOUR FORECAST VALID 0600 UTC FRI JUL 14.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM CALVIN NEAR 12.4N 110.6W 1004 MB AT 0900 UTC JUL
12 MOVING W OR 270 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E
SEMICIRCLE AND 30 NM W SEMICIRCLE.  SEAS 12 FT OR GREATER WITHIN
30 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE WITH SEAS TO 12 FT.
ELSEWHERE WITHIN 14N107W TO 15N109W TO 15N111W TO 14N113W TO 
11N111W TO 11N108W TO 14N107W WINDS 20 TO 33 KT. SEAS 8 TO 12 
FT.
.24 HOUR FORECAST TROPICAL STORM CALVIN NEAR 12.7N 115.5W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM E SEMICIRCLE...40 NM SW QUADRANT AND 50 NM NW 
QUADRANT. SEAS 12 FT OR GREATER 60 NM NW QUADRANT...90 NM NE 
QUADRANT...AND 45 NM S SEMICIRCLE WITH SEAS TO 16 FT. ELSEWHERE 
WITHIN 14N113W TO 16N115W TO 16N117W TO 13N118W TO 12N116W TO 
12N114W TO 14N113W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER 
AREA WITHIN 14N112W TO 16N113W TO 17N116W TO 14N118W TO 11N116W 
TO 11N113W TO 14N112W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
MIXED SWELL.
.36 HOUR FORECAST HURRICANE CALVIN NEAR 12.9N 118.2W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.48 HOUR FORECAST HURRICANE CALVIN NEAR 13.4N 121.1W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND 60 NM SW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM NW QUADRANT...210 
NM NE QUADRANT...180 NM SE QUADRANT...AND 60 NM SW QUADRANT WITH 
SEAS TO 28 FT. ELSEWHERE WITHIN 16N119W TO 17N121W TO 17N123W TO
14N124W TO 13N123W TO 13N120W TO 16N119W WINDS 20 TO 33 KT. SEAS
11 TO 12 FT. REMAINDER AREA WITHIN 16N117W TO 18N119W TO 17N122W
TO 13N124W TO 11N121W TO 13N118W TO 16N117W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE CALVIN NEAR 14.7N 127.1W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE CALVIN NEAR 15.8N 133.3W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.120 HOUR FORECAST TROPICAL STORM CALVIN NEAR 16.9N 139.8W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.

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 13N87W TO 13N89W TO 10N90W TO 09N89W TO 09N86W TO 10N85W
TO 13N87W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 20N128W TO 23N140W TO 07N140W TO 10N135W TO 16N129W TO
20N128W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. 
.24 HOUR FORECAST WITHIN 13N131W TO 17N140W TO 06N140W TO 
10N131W TO 13N131W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.WITHIN 00N110W TO 02N123W TO 03N140W TO 03.4S120W TO 01S120W TO
03.4S101W TO 00N110W WINDS 20 KT OR LESS. SEAS 8 FT IN S TO SE
SWELL. 
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0830 UTC WED JUL 12...

.T.S. CALVIN...NUMEROUS MODERATE SCATTERED STRONG FROM 11N TO 
14N BETWEEN 109W AND 113W. SCATTERED MODERATE ISOLATED STRONG 
ELSEWHERE FROM 06N TO 15N BETWEEN 106W AND 114W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 08N98W TO 13N115W TO 11N125W. ITCZ
FROM 11N125W TO 07N140W. SCATTERED MODERATE ISOLATED STRONG FROM
02N TO 14N BETWEEN 93W AND 101W. SCATTERED MODERATE CONVECTION 
FROM 10N TO 13N BETWEEN 120W AND 130W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.