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NOAA NOAA United States Department of Commerce

High Seas Forecast (Tropical NE Pacific)



000
FZPN03 KNHC 192115
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU OCT 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 OCT 19.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 20.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W TO 14W96W 
...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 
KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE OF LINE 
FROM 16N95W TO 14296W TO 12N98W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN MIXED NE AND SW SWELL.
.24 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W 
TO 14N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 
TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 04N W OF 133W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED S 
AND SE SWELL. S OF 00N AND W OF 115W WINDS 20 KT OR LESS. SEAS 8 
FT IN MIXED SE AND S SWELL.
.24 HOUR FORECAST S OF 05N E OF 120W WINDS 20 KT OR LESS. SEAS 8 
FT IN MIXED SE AND S SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST COLD FRONT NORTH OF THE AREA. NW OF LINE FROM 
30N137W TO 29N140W WINDS 20 KT OR LESS. SEAS RAPIDLY BUILDING TO 
8 TO 10 FT IN NW SWELL.
.12 HOUR FORECAST WEAKENING COLD FRONT FROM 30N134W TO 28N140W. 
NW OF COLD FRONT WINDS 20 KT OR LESS. SEAS RAPIDLY BUILDING TO 
12 TO 15 FT IN NW SWELL. ELSEWHERE NW OF A LINE FROM 30N131W TO 
25N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 30N124W TO 24N140W.
N OF LINE FROM 30N125W TO 24N140W WINDS 20 KT OR LESS. SEAS 12 
TO 16 FT IN NW SWELL. ELSEWHERE NW OF LINE FROM 30N120W TO 
20N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL. N OF 
28N E OF 117W NW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FRONT DISSIPATED. N OF 25N BETWEEN 116W AND 
130W SEAS 12 TO 16 FT IN NW SWELL. REMAINDER OF THE AREA N OF 
LINE FROM 23N110W TO 10N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 
FT IN NW SWELL. 

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

CONVECTION VALID AT 2030 UTC THU OCT 19...

.TROPICAL WAVE N OF 04N NEAR 89W...SCATTERED MODERATE 
ISOLATED STRONG FROM 06N TO 08N BETWEEN 84W AND 90W. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N78W TO 10N121W. ITCZ CONTINUES FROM 
10N121W TO BEYOND 10N140W. SCATTERED MODERATE WITHIN 60 NM OF 
TROUGH FROM 95W TO 110W. SCATTERED MODERATE ISOLATED STRONG 
WITHIN 60 NM OF ITCZ W OF 138W.

$$
.FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.