000
FZPN03 KNHC 262103
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC THU OCT 26 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 26.
24 HOUR FORECAST VALID 1800 UTC FRI OCT 27.
48 HOUR FORECAST VALID 1800 UTC SAT OCT 28.

.WARNINGS.

...GALE WARNING... 
.WITHIN 60 NM OF LINE FROM 16N95W TO 11N97W...INCLUDING THE GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS 10 TO 14 FT. 
ELSEWHERE WITHIN AREA BOUNDED BY 16N95W TO 05N90W TO 01N96W TO 
08N113W TO 16N95W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY 
IN MIXED NE AND SW SWELL.
.24 HOUR FORECAST CONDITIONS MERGE.
.42 HOUR FORECAST WITHIN 60 NM OF LINE FROM 16N95W TO 14N95W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. 
SEAS TO 8 FT.
.48 HOUR FORECAST WITHIN 15 NM OF LINE FROM 16N95W TO 
14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 25 TO 35 
KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W 
TO 13N96WN TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT. 

.SYNOPSIS AND FORECAST.

.LOW PRES 10N88W 1007 MB. WITHIN 150 NM OF LOW WINDS 20 TO 25 
KT. SEAS TO 10 FT. POSSIBLE TROPICAL CYCLONE FORMATION. 
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
10N90W 1006 MB. WITHIN 180 NM NE SEMICIRCLE OF LOW E TO SE WINDS 
20 TO 25 KT. SEAS 8 TO 12 FT. WITHIN 75 NM OF LINE FROM 11N88W 
TO 06N93W S TO SW WINDS 20 TO 25 KT. SEAS TO 11 FT. REMAINDER 
AREA WITHIN 210 NM OF LINE FROM 12N88W TO 06N94W TO 07N111W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN MIXED SWELL. 
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N92W 1004 MB. WITHIN 180 NM OF CENTER WINDS 20 TO 30 KT. SEAS 
9 TO 13 FT. ELSEWHERE WITHIN 180 NM OF LINE FROM 13N89W TO 
08N96W TO 06N109W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY 
IN MIXED SWELL.

.24 HOUR FORECAST W OF LINE FROM 30N138W TO 28N140W WINDS 20 KT 
OR LESS. SEAS TO 9 FT IN NW SWELL.
.48 HOUR FORECAST W OF LINE FROM 30N124W TO 13N140W WINDS 20 KT 
OR LESS. SEAS 8 TO 13 FT PRIMARILY IN NW SWELL...HIGHEST SEAS AT 
30N140W. 

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

CONVECTION VALID AT 2100 UTC THU OCT 26...

.LOW PRES 10N88W...SCATTERED MODERATE ISOLATED STRONG WITHIN 120
NM N QUADRANT AND WITHIN 270 NM S SEMICIRCLE OF THE LOW.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N86W TO 1007 MB LOW PRES 10N88W TO 08N100W 
TO 11N109W TO 08N140W. SCATTERED MODERATE ISOLATED STRONG 
ELSEWHERE WITHIN 210 NM OF LINE FROM 07N85W TO 10N96W...WITHIN 
150 NM OF LINE FROM 14N102W TO 08N117W AND WITHIN 120 NM OF LINE 
FROM 12N126W TO 07N138W. 

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.