High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZPN40 PHFO 281128
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.

SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC SEP 28 2016.
24 HOUR FORECAST VALID 0600 UTC SEP 29 2016.
48 HOUR FORECAST VALID 0600 UTC SEP 30 2016.

.WARNINGS.

...TROPICAL STORM WARNING...
.WINDS 20 TO 30 KT AND SEAS 8 TO 10 FT E OF 141W BETWEEN 13N AND 15N.
.24 HOUR FORECAST...WINDS 20 TO 30 KT AND SEAS 8 TO 12 FT E OF 141W
BETWEEN 15N AND 18N.
.48 HOUR FORECAST...TROPICAL STORM ULIKA NEAR 17.0N 140.6W. MAXIMUM
SUSTAIN WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 50
NM NE...40 NM SE...30 NM SW AND 40 NM QUADRANTS. SEAS 12 FT OR
HIGHER WITHIN 60 NM OF CENTER. WINDS 20 TO 33 FT AND SEAS 8 TO 12
FT ELSEWHERE WITHIN 180 NM N AND WITHIN 60 NM S SEMICIRCLES.
.72 HOUR FORECAST...TROPICAL STORM ULIKA NEAR 17.7N 143.3W. MAXIMUM
WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...REMNANT LOW ULIKA NEAR 17.7N 147.3W. MAXIMUM
WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST...LOW DISSIPATED.

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.

.WEAK TROUGH 25N162W TO 28N162W TO 30N160W MOVING W SLOWLY.
.24 HOUR FORECAST WEAK TROUGH 26N166W TO 30N165W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 04N165E TO 12N173E TO 13N177E MOVING W 10 KT. SCATTERED
MODERATE TO STRONG TSTMS WITHIN 180 NM OF TROUGH. ISOLATED MODERATE
TSTMS ELSEWHERE FROM 03N TO 21N W OF 180E.
.24 HOUR FORECAST TROUGH 06N160E TO 13N173E.
.48 HOUR FORECAST TROUGH W OF FORECAST AREA.

.HIGH 30N174W 1018 MB NEARLY STATIONARY AND DISSIPATING.

.E WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT FROM 14N TO 18N BETWEEN
153W AND 159W.
.24 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS. SEAS LOWERED
TO 8 FT OR LESS.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 11N146W TO 09N170W TO 12N180W. SCATTERED MODERATE TO STRONG
TSTMS FROM 14N TO 19N BETWEEN 176W AND 180W. ISOLATED MODERATE TO
STRONG TSTMS ELSEWHERE FROM 04N TO 14N BETWEEN 170W AND 180W...FROM
05N TO 11N BETWEEN 156W AND 170W...AND FROM 08N TO 16N BETWEEN 145W
AND 156W.

.ISOLATED MODERATE TSTMS E OF 143W BETWEEN 07N TO 14N...AND WITHIN
60 NM OF 26N176E.

$$

.HONOLULU HI.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.