High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 232100
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU NOV 23 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC THU NOV 23.
24 HOUR FORECAST VALID 1800 UTC FRI NOV 24.
48 HOUR FORECAST VALID 1800 UTC SAT NOV 25.

.WARNINGS.

...GALE WARNING...
.WITHIN 45 NM OF LINE FROM 16N95W TO 13N96W...INCLUDING THE GULF
OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS 12 TO 16 FT.
ELSEWHERE WITHIN 90 NM OF LINE FROM 16N95W TO 13N96W
TO 11N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO
13N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO
30 KT. SEAS 9 TO 13 FT. REMAINDER AREA WITHIN 120 NM OF LINE
FROM 16N95W TO 13N96W TO 11N99W AND FROM 08N TO 10N BETWEEN 99W
AND 102W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE AND SW
SWELL.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.STATIONARY FRONT FROM 30N138.5W TO 28N140W. W OF LINE FROM
30N129W TO 20N140W WINDS 20 KT OR LESS. SEAS 8 TO 14 FT IN NW
SWELL...HIGHEST SEAS NEAR 28N140W.
.24 HOUR FORECAST STATIONARY FRONT NW CORNER OF AREA. W OF LINE
FROM 30N121W TO 20N127W TO 11N140W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT PRIMARILY IN NW SWELL...HIGHEST NEAR 18N138W.
.48 HOUR FORECAST LOW PRES WELL N OF AREA WITH COLD FRONT TO
30N135W TO 20N140W. N OF 28N W OF FRONT NW WINDS 20 TO 25 KT.
SEAS 9 TO 11 FT. ELSEWHERE NW OF LINE 30N135W TO 15N140W WINDS
20 KT OR LESS. SEAS TO 9 FT IN NW SWELL.

.18 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N85.5W TO
10N88W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST WITHIN 30 NM OF LINE FROM 11N85.5W TO
10N88W...INCLUDING THE GULF OF PAPAGAYO...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

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

CONVECTION VALID AT 2100 UTC THU NOV 23...

.SCATTERED MODERATE TO STRONG FROM 15N TO 23N W OF 137W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N77W TO 11N88W TO 07N100W TO 10N113W. ITCZ
FROM 10N121W TO 08N136W TO BEYOND 08N140W. SCATTERED MODERATE
ISOLATED STRONG NE OF LINE FROM 05N77W TO 09N85W. SCATTERED
MODERATE ISOLATED STRONG WITHIN 120 NM S OF ITCZ BETWEEN 135W
AND 140W.

$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.


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