000
FZPN03 KNHC 042148
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU MAY 04 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 04.
24 HOUR FORECAST VALID 1800 UTC FRI MAY 05.
48 HOUR FORECAST VALID 1800 UTC SAT MAY 06.

.WARNINGS.

...GALE WARNING...
.12 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING 
THE GULF OF TEHUANTEPEC...N WINDS 20 TO 30 KT. SEAS LESS THAN 8 
FT.
.18 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF LINE FROM 16.5N95W 
TO 14N95W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. 
SEAS BUILDING TO 12 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE OF 
LINE FROM 16N95W TO 13N95W N WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16.5N95W 
TO 13.5N95.5W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 30 TO 35 
KT. SEAS TO 13 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE OF LINE 
FROM 16N95W TO 11.5N95.5W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 
11 FT. 
.42 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 14N95W TO 11.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO 
NE WINDS 20 TO 30 KT. SEAS 10 TO 14 FT. ELSEWHERE WITHIN 90 NM 
EITHER SIDE OF LINE FROM 16N95W TO 14N95W TO 11.5N96.5W WINDS 20 
KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 15 NM EITHER SIDE OF LINE FROM 16.5N95W 
TO 13N96W...INCLUDING GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. 
SEAS 8 TO 9 FT. ELSEWHERE FROM 09.5N TO 13.5N BETWEEN 93.5W AND 
98.5W WINDS 20 KT OR LESS. SEAS TO 10 FT IN N TO NE SWELL.

.SYNOPSIS AND FORECAST.

.AREA S OF LINE FROM 00N100W TO 00N107W TO 03.4S114W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN SW SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST COLD FRONT FROM 30N137W TO 29N140W. WITHIN 
AREA BOUNDED BY 29N139.5W TO 29N140W TO 30N140W TO 30N139W TO 
29N139.5W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST COLD FRONT FROM 30N129W TO 24.5N140W. NW OF 
FRONT N TO NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT IN NW SWELL. 
ELSEWHERE NW OF LINE FROM 30N126W TO 24N140W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN MIXED NW SWELL AND N WIND WAVES.
.48 HOUR FORECAST COLD FRONT DISSIPATING FROM 30N117W TO 23N130W 
TO 21.5N140W. NW OF FRONT N TO NE WINDS 20 TO 25 KT EXCEPT N TO 
NW WINDS E OF 125W. SEAS 10 TO 12 FT IN NW SWELL. ELSEWHERE NW 
OF LINE FROM 30N117W TO 24N122W TO 19N140W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED NW AND NORTHERLY SWELL.

.36 HOUR FORECAST GULF OF CALIFORNIA TROUGH FROM 31.5N114W TO 
30.5N115W. N OF 29.5N E OF TROUGH S TO SW WINDS 20 TO 25 KT. 
SEAS LESS THAN 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA TROUGH FROM 31.5N113.5W TO
30.5N114.5W. N OF 29.5N E OF TROUGH S TO SW WINDS 20 TO 30 KT.
SEAS BUILDING TO 8 FT.

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

CONVECTION VALID AT 2115 UTC THU MAY 4...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 09N73W TO 08.5N94W TO 07N113W. ITCZ 
AXIS EXTENDS FROM 05N117W TO 06N135W. SCATTERED TO LOCALLY 
NUMEROUS MODERATE TO STRONG FROM 03.5N TO 11N BETWEEN 87W AND 
102W. SCATTERED MODERATE TO STRONG WITHIN 240 NM N AND 120 NM S 
OF ITCZ BETWEEN 122W AND 135W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.