752 
FZPN03 KNHC 110846
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC SAT SEP 11 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT SEP 11.
24 HOUR FORECAST VALID 0600 UTC SUN SEP 12.
48 HOUR FORECAST VALID 0600 UTC MON SEP 13.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE OLAF NEAR 24.4N 114.0W 1005 MB AT 0900
UTC SEP 11 MOVING W OR 260 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. WITHIN 24N112W TO 23N114W TO 24N115W TO
26N115W TO 26N113W TO 24N112W SE TO S WINDS 20 TO 30 KT. SEAS 8
TO 11 FT.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW OLAF NEAR 24.2N 
114.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW OLAF NEAR 23.7N 
115.6W. WITHIN 23N115W TO 23N116W TO 24N117W TO 25N116W TO 
24N115W TO 23N115W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW OLAF NEAR 21.5N 
118.2W. WITHIN 22N118W TO 22N121W TO 28N128W TO 30N128W TO 
30N117W TO 22N118W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED 
SWELL.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW OLAF NEAR 20.1N 
120.3W. MAXIMUM SUSTAINED WINDS 15 KT GUSTS 20 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED.

.WITHIN 04N98W TO 03.4S94W TO 03.4S120W TO 07N126W TO 14N92W TO
04N98W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT. WITHIN 14N95W TO
14N97W TO 15N96W TO 16N95W TO 14N95W...INCLUDING THE GULF OF
TEHUANTEPEC... NE WINDS 20 TO 30 KT. SEAS 8 FT.
.24 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE...NEAR
13N99W 1010 MB. WITHIN 08N95W TO 07N103W TO 09N103W TO 12N98W 
TO 11N93W TO 08N95W SW WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. WITHIN
14N96W TO 13N97W TO 14N98W TO 15N98W TO 16N96W TO 14N96W NE TO E
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 01S90W TO 
03.4S120W TO 00N127W TO 13N112W TO 15N93W TO 01S90W WINDS 20 KT 
OR LESS. SEAS 8 TO 10 FT IN SW SWELL.
.48 HOUR FORECAST LOW PRESSURE...POSSIBLE TROPICAL CYCLONE... 
NEAR 15N100W 1009 MB. WITHIN 12N97W TO 11N100W TO 12N100W TO 
17N100W TO 16N97W TO 12N97W WINDS 20 TO 30 KT. SEAS 9 TO 11 FT.
ELSEWHERE WITHIN 03.4S81W TO 03.4S120W TO 18N108W TO 16N95W TO 
06N80W TO 03.4S81W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SW
SWELL.

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

CONVECTION VALID AT 0840 UTC SAT SEP 11...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N86W TO 13N91W TO 08N130W. SCATTERED 
MODERATE ISOLATED STRONG E OF 80W...FROM 07N TO 15N BETWEEN 90W
AND 100W...AND FROM 07N TO 12N BETWEEN 100W AND 110W. SCATTERED 
MODERATE FROM 08N TO 10N BETWEEN 110W AND 115W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.