High Seas Forecast
Issued by NWS

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000
FZPN03 KNHC 280248
HSFEP2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC WED SEP 28 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC WED SEP 28.
24 HOUR FORECAST VALID 0000 UTC THU SEP 29.
48 HOUR FORECAST VALID 0000 UTC FRI SEP 30.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM ROSLYN NEAR 19.5N 115.9W 1004 MB AT 0300 UTC SEP
28 MOVING NE OR 040 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...90 NM SE QUADRANT...0 NM SW QUADRANT...AND 80 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM E SEMICIRCLE...AND
60 NM W SEMICIRCLE WITH SEAS TO 15 FT. ELSEWHERE WITHIN 150 NM N
AND 90 NM S SEMICIRCLES OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO
12 FT. REMAINDER AREA WITHIN 180 NM N AND 120 NM S SEMICIRCLES
OF CENTER WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSLYN NEAR 21.8N
116.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT NEAR CENTER.
WITHIN 120 NM N AND 60 NM S SEMICIRCLES OF LOW WINDS 20 TO 25 KT.
SEAS 9 TO 11 FT. ELSEWHERE WITHIN 180 NM N AND 120 NM SEMICIRCLES
OF LOW WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSLYN NEAR 23.6N
117.9W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT NEAR CENTER.
WITHIN 45 NM OF CENTER WINDS 20 TO 25 KT. SEAS TO 9 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW DISSIPATED.

...TROPICAL STORM WARNING...
.TROPICAL STORM ULIKA NEAR 13.3N 139.1W 997 MB AT 0300 UTC SEP
28 MOVING NE OR 045 DEGREES AT 6 KT. MAXIMUM SUSTAINED WINDS 55
KT WITH GUSTS TO 65 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM
NE QUADRANT...50 NM SE QUADRANT AND 30 NM W SEMICIRCLE OF
CENTER. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER WITH SEAS
TO 19 FT. OVER FORECAST WATERS ELSEWHERE WITHIN 120 NM OF CENTER
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM ULIKA NEAR 15.1N 138.7W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS TO 75 KT. TROPICAL STORM
FORCE WINDS WITHIN 80 NM E SEMICIRCLE AND 50 NM W SEMICIRCLE OF
CENTER. SEAS 12 FT OR GREATER WITHIN 90 NM E AND 60 NM W
SEMICIRCLES OF CENTER WITH SEAS TO 22 FT. ELSEWHERE OVER
FORECAST WITHIN 120 NM OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12
FT. REMAINDER FORECAST WATERS FROM 12N TO 19N W OF 135W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM ULIKA NEAR 16.5N 139.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS TO 55 KT. TROPICAL STORM
FORCE WINDS WITHIN 70 NM NE QUADRANT...60 NM SE QUADRANT...40 NM
SW QUADRANT AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
60 NM OF CENTER...EXCEPT 90 NM NE QUADRANT WITH SEAS TO 16 FT.
ELSEWHERE OVER FORECAST WATERS WITHIN 90 NM OF CENTER...EXCEPT
120 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER
FORECAST WATERS FROM 13N TO 21N W OF 135W WINDS 20 KT OR LESS.
SEAS TO 9 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM ULIKA W OF AREA NEAR 17.5N
142.0W. MAXIMUM WINDS 35 KT GUSTS TO 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW ULIKA W OF AREA NEAR
17.7N 146.0W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW ULIKA WELL W OF AREA
NEAR 17.9N 150.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

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

.SYNOPSIS AND FORECAST.

.S OF 01S BETWEEN 101W AND 113W WINDS 20 KT OR LESS. SEAS TO 8
FT IN SW SWELL.
.18 HOUR FORECAST LITTLE CHANGE.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

CONVECTION VALID AT 0215 UTC WED SEP 28...

.TROPICAL STORM ROSLYN...SCATTERED MODERATE BETWEEN 90 NM AND
210 NM N QUADRANT.

.TROPICAL STORM ULIKA...SCATTERED STRONG WITHIN 30 NM OF
CENTER. SCATTERED MODERATE ISOLATED STRONG WITHIN 90 NM SE
QUADRANT. SCATTERED MODERATE WITHIN 90 NM NE QUADRANT.

.SURFACE TROUGH FROM 11N98W TO 17N102W. SCATTERED MODERATE
ISOLATED STRONG FROM 10N TO 14N BETWEEN 100W AND 103W.

.SCATTERED STRONG OVER GULF OF TEHUANTEPEC WITHIN 30 NM OF LINE
OF 15N94W TO 16N94W.

.SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM OF 13N96W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 10N84W TO 10N90W TO 12N97W TO
12.5N104W TO LOW PRES NEAR 12N107W 1008 MB TO 08N115W. IT
RESUMES FROM 13N117W TO 12N125W TO 14N129W TO 14N135W. SCATTERED
MODERATE ISOLATED STRONG WITHIN 180 NM S OF AXIS BETWEEN 80W AND
85W...WITHIN 60 NM OF AXIS BETWEEN 127W AND 129W AND BETWEEN
132W AND 134W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.



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