000
FZPN03 KNHC 161518
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN JUL 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SUN JUL 16.
24 HOUR FORECAST VALID 1200 UTC MON JUL 17.
48 HOUR FORECAST VALID 1200 UTC TUE JUL 18.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM CALVIN NEAR 16.0N 134.8W 993 MB AT 1500 UTC JUL 
16 MOVING WNW OR 285 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM N 
SEMICIRCLE...70 NM SE QUADRANT AND 60 NM SW QUADRANT. SEAS 12 FT 
OR GREATER WITHIN 180 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE 
WITH SEAS TO 28 FT. ELSEWHERE WITHIN 240 NM N AND 120 NM S 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF 
THE AREA FROM 10N TO 22N W OF 130W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM CALVIN JUST W OF AREA NEAR 
17.0N 140.6W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. 
TROPICAL STORM FORCE WINDS WITHIN 70 NM N SEMICIRCLE AND 30 NM S 
SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 180 NM N SEMICIRCLE AND 
90 NM S SEMICIRCLE WITH SEAS TO 20 FT. ELSEWHERE WITHIN 240 NM N 
AND 120 NM S SEMICIRCLES WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. 
REMAINDER OF THE AREA OVER FORECAST WATERS FROM 12N TO 23N W OF 
135W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM CALVIN WELL W OF AREA NEAR 
17.9N 147.9W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. 
TROPICAL STORM FORCE WINDS WITHIN 60 NM NE QUADRANT...30 NM SE 
QUADRANT...20 NM SW QUADRANT...AND 50 NM NW QUADRANT. OVER 
FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.72 HOUR FORECAST TROPICAL STORM CALVIN NEAR 19.2N 155.0W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW CALVIN NEAR 20.1N 
161.8W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST...DISSIPATED.

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.

.FROM 10N TO 12.5N E OF 90W...INCLUDING THE GULF OF PAPAGAYO... 
NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. 
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.N OF 14N BETWEEN 94.5W AND 96.5W...INCLUDING THE GULF OF 
TEHUANTEPEC N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING 
THE GULF OF TEHUANTEPEC N WINDS 20 TO 25 KT. SEAS TO 8 FT.

.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 98W AND 102W E WINDS 
20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 102W AND 107W E WINDS 
20 TO 25 KT. SEAS 8 TO 9 FT.

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

CONVECTION VALID AT 1500 UTC SUN JUL 16...

.HURCN CALVIN...NUMEROUS MODERATE TO ISOLATED STRONG WITHIN 
60 NM NE SEMICIRCLE. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 10N84W TO 08N100W TO 08N126W. 
THE ITCZ STRETCHES FROM 07N135W TO BEYOND 07N140W. SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION IS NOTED FROM 05N TO 08N 
BETWEEN 78W AND 85W...FROM 02N TO 08N BETWEEN 94W AND 102W... 
FROM 12N TO 16N BETWEEN 94W AND 102W...AND FROM 02N TO 11N 
BETWEEN 109W AND 125W. 

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.