000
FZPN03 KNHC 282153 CCA
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC SUN OCT 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT OCT 28.
24 HOUR FORECAST VALID 1800 UTC SUN OCT 29.
48 HOUR FORECAST VALID 1800 UTC MON OCT 30.

.WARNINGS.

...GALE WARNING... 
.WITHIN 45 NM OF LINE FROM 16N95W TO 14N95W...INCLUDING THE GULF 
OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT. SEAS TO 10 FT.
.06 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 
14.5N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 
TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 
16N95W TO 14N95.5W N TO NE WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. 
REMAINDER OF AREA N OF 13N BETWEEN 94W AND 97W WINDS 20 KT OR 
LESS. SEAS TO 8 FT IN NE SWELL. 
.24 HOUR FORECAST WITHIN 30 NM LINE FROM 16N95W TO 15N95.5W... 
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 25 TO 30 KT.
SEAS 9 TO 11 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO 
14N96W N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. REMAINDER OF 
AREA N OF 10N BETWEEN 94W AND 100W WINDS 20 KT OR LESS. SEAS TO 
9 FT IN MIXED NE AND SW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE SELMA NEAR 14.3N 88.8W 1007 MB AT 2100 
UTC OCT 28 MOVING NNE OR 030 DEG AT 4 KT. MAXIMUM SUSTAINED 
WINDS 25 KT GUSTS 35 KT. OVER FORECAST WATERS N OF 11N BETWEEN 
88W AND 90W SW WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST...DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS 
THAN 8 FT. 

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.FROM 03N TO 10N BETWEEN 91W AND 113W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED SW AND NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.NW OF LINE FROM 30N123W TO 11N140W WINDS 20 KT OR LESS. SEAS 8 
TO 13 FT IN NW SWELL...HIGHEST NW. 
.24 HOUR FORECAST NW OF LINE FROM 24N113W TO 12N123W TO 01N140W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.
.48 HOUR FORECAST OVER FORECAST WATERS E OF 108W...EXCEPT N OF 
24N AND W OF 127W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.

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

CONVECTION VALID AT 2045 UTC SAT OCT 28...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 14N92W TO 14N101W TO 09N110W TO 
11N133W...THEN TRANSITIONS TO THE ITCZ TO BEYOND 11N140W. 
SCATTERED MODERATE FROM 07N TO 16N E OF 100W...AND FROM 06N TO 
09N BETWEEN 106W AND 115W. 

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.