000
FZPN03 KNHC 171557
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC MON JUL 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON JUL 17.
24 HOUR FORECAST VALID 1200 UTC TUE JUL 18.
48 HOUR FORECAST VALID 1200 UTC WED JUL 19.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM CALVIN W OF AREA NEAR 16.8N 141.4W 1000 MB AT 
1500 UTC JULY 17 MOVING W AT 280 DEG AT 16 KT. TROPICAL STORM 
FORCE WINDS WITHIN 90 NM N SEMICIRCLE...50 NM SE QUADRANT AND 40 
NM SW QUADRANT. ELSEWHERE OVER FORECAST WATERS WITHIN 17.5N139.5W
TO 18N139.5W TO 18N140W TO 16.5N140W TO 17N139.5W TO 17.5N139.5W
WINDS 20 TO 33 KT. SEAS 12 TO 20 FT. REMAINDER OF AREA WITHIN 
23N136W TO 24N140W TO 20N140W TO 18N139W TO 12N140W TO 19N135W TO
23N136W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.03 HOUR FORECAST TROPICAL STORM CALVIN MOVES FARTHER WEST OF 
AREA. LITTLE CHANGE EXCEPT WINDS BELOW TROPICAL STORM FORCE.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT. 

.SYNOPSIS AND FORECAST.

.WITHIN 16N94W TO 16N95W TO 15N96W TO 15N95W TO
16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE 
WINDS 20 TO 30 KT. SEAS 8 FT.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N97W TO 14N97W TO
14N96W TO 15N95W TO 16N94W...INCLUDING THE GULF OF 
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.WITHIN 11N87W TO 11N88W TO 11N90W TO 10N90W TO 10N88W TO 10N87W
TO 11N87W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
25 KT. SEAS 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.
.12 HOUR FORECAST WITHIN 12N87W TO 12N88W TO 11N88W TO 10N88W TO
10N86W TO 11N86W TO 12N87W...INCLUDING THE GULF OF PAPAGAYO...NE
TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.36 HOUR FORECAST WITHIN 12N107W TO 14N107W TO 13N109W TO
11N110W TO 11N108W TO 11N107W TO 12N107W E TO SE WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 14N109W TO 15N111W TO 14N113W TO 
13N113W TO 11N111W TO 10N109W TO 14N109W E TO SE WINDS 20 TO 25 
KT. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 1530 UTC MON JUL 17...

.T.S. CALVIN...SCATTERED MODERATE WITHIN 60 NM N SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N86W TO 09N102W TO 05N124W.  ITCZ 
EXTENDS FROM 05N124W TO BEYOND 04N140W. SCATTERED MODERATE 
FROM 06N TO 12N BETWEEN 83W AND 135W. 

$$
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.