526 
FZPN03 KNHC 130942
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC THU JUL 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU JUL 13.
24 HOUR FORECAST VALID 0600 UTC FRI JUL 14.
48 HOUR FORECAST VALID 0600 UTC SAT JUL 15.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM CALVIN NEAR 12.4N 116.0W 995 MB AT 0900 UTC JUL
13 MOVING W OR 270 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS 60 KT
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NW AND SE
QUADRANTS...60 NM NE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 135 NM NE QUADRANT...60 NM SE QUADRANT...30 NM
SW QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 17 FT. 
ELSEWHERE WITHIN 14N113W TO 16N114W TO 16N116W TO 14N118W TO 
12N117W TO 12N114W TO 14N113W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT.
REMAINDER OF AREA WITHIN 17N113W TO 15N117W TO 14N113W TO 11N116W 
TO 11N112W TO 14N111W TO 17N113W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN MIXED SWELL.
.12 HOUR FORECAST HURRICANE CALVIN NEAR 12.7N 118.2W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.24 HOUR FORECAST HURRICANE CALVIN NEAR 13.2N 121.0W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NE QUADRANT...70 NM SE QUADRANT...50 NM SW
QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM NE QUADRANT...90 NM SE QUADRANT...60 NM SW
QUADRANT...AND 90 NM NW QUADRANT WITH SEAS TO 28 FT. ELSEWHERE 
WITHIN 15N119W TO 16N120W TO 16N121W TO 15N123W TO 12N122W TO 
12N120W TO 15N119W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER 
OF AREA WITHIN 15N116W TO 18N118W TO 16N123W TO 13N124W TO 10N122W 
TO 10N118W TO 15N116W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL.
.48 HOUR FORECAST HURRICANE CALVIN NEAR 14.4N 126.7W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 110 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
135 NM NE QUADRANT...90 NM SE QUADRANT...75 NM SW QUADRANT...AND 
105 NM NW QUADRANT WITH SEAS TO 36 FT. ELSEWHERE WITHIN 16N124W 
TO 18N127W TO 16N129W TO 13N128W TO 13N126W TO 14N124W TO 16N124W 
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 
17N121W TO 20N126W TO 17N130W TO 14N130W TO 10N126W TO 13N122W 
TO 17N121W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL.
.72 HOUR FORECAST HURRICANE CALVIN NEAR 15.7N 132.6W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM CALVIN NEAR 16.8N 138.9W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.
.120 HOUR FORECAST TROPICAL STORM CALVIN NEAR 17.7N 145.7W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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 13N138W TO 15N140W TO 05N140W TO 06N139W TO 09N137W TO
13N138W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.18 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 0900 UTC THU JUL 13...

.T.S. CALVIN...NUMEROUS MODERATE TO STRONG FROM 08N TO 15N 
BETWEEN 112W AND 119W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N84W TO 12N108W...THEN RESUMES NEAR 12N121W
TO 12N127W. ITCZ FROM 12N127W TO BEYOND 08N140W. SCATTERED 
MODERATE FROM 02N TO 14N AND E OF 108W...AND FROM 06N TO 14N AND
W OF 121W.

$$
.FORECASTER ERA. NATIONAL HURRICANE CENTER.