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
097
FZPN40 PHFO 210320
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC TUE NOV 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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 0000 UTC NOV 21 2017.
24 HOUR FORECAST VALID 0000 UTC NOV 22 2017.
48 HOUR FORECAST VALID 0000 UTC NOV 23 2017.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 30N168E TO 26N170E TO 20N176E TO 17N177E NEARLY
STATIONARY. SE WINDS 25 TO 35 KT BETWEEN TROUGH AND 179W. E WINDS
20 TO 25 KT N OF 20N BETWEEN 179W AND 170W. SCATTERED STRONG TSTMS
WITHIN 330 NM E OF TROUGH S OF 26N.
.24 HOUR FORECAST TROUGH FROM 30N166E TO 25N170E TO 19N173E. SE
WINDS 20 TO 30 KT BETWEEN TROUGH AND 180W. E WINDS 20 TO 25 KT N
OF 19N BETWEEN 180W AND 165W.
.48 HOUR FORECAST TROUGH FROM 30N168E TO 25N170E TO 19N171E. E TO
SE WINDS 20 TO 25 KT BETWEEN TROUGH AND 165W.

.SYNOPSIS AND FORECAST.

.FRONT FROM 26N140W TO 22N143W TO 16N148W MOVING E SLOWLY. S
WINDS 20 TO 25 KT E OF FRONT N OF 22N. WINDS 20 TO 30 KT N OF
24N BETWEEN 155W AND FRONT. SCATTERED STRONG TSTMS WITHIN 90 NM OF
A LINE FROM 20N140W TO 15N141W. ISOLATED MODERATE TSTMS WITHIN 120
NM OF FRONT AND N OF 29N E OF 146W.
.24 HOUR FORECAST WEAK FRONT FROM 23N140W TO 18N145W. WINDS 20 TO
25 KT N OF A LINE FROM 30N140W TO 27N150W TO 21N165W.
.48 HOUR FORECAST DISSIPATING FRONT FROM 23N140W TO 17N144W. N
WINDS 20 TO 25 KT N OF 28N BETWEEN 148W AND 155W.

.TROUGH FROM 11N140W TO 11N148W NEARLY STATIONARY. ISOLATED
MODERATE TSTMS WITHIN 45 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 12N141W TO 08N145W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 06N169E TO 09N175E TO 09N178W NEARLY STATIONARY.
ISOLATED MODERATE TSTMS WITHIN 150 NM OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 10N173E TO 07N168E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N172W TO 22N165W TO 15N154W NEARLY STATIONARY.

.RIDGE FROM 18N140W TO 15N147W NEARLY STATIONARY.

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

.SEAS 12 TO 17 FT N OF LINE FROM 30N145W TO 23N150W TO 24N160W TO
30N163W. SEAS 12 TO 16 FT IN AREA BOUNDED BY 30N169E TO 30N179E TO
25N177W TO 22N179E TO 30N169E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE
FROM 21N140W TO 12N160W TO 12N175W TO 25N160E.
.24 HOUR FORECAST SEAS 12 TO 17 FT N OF LINE FROM 30N148W TO
25N162W TO 30N164W. SEAS 12 TO 14 FT IN AREA BOUNDED BY 30N169E TO
30N177E TO 25N180W TO 23N176E TO 30N169E. SEAS 8 TO 12 FT
ELSEWHERE N OF LINE FROM 21N140W TO 10N165W TO 20N160E.
.48 HOUR FORECAST SEAS 12 TO 18 FT N OF LINE FROM 28N140W TO
23N150W TO 22N165W TO 30N170W. SEAS 8 TO 12 FT ELSEWHERE N OF LINE
FROM 25N140W TO 10N170W TO 12N175E TO 26N160E.

.SEAS 8 FT OR LESS OVER REST OF FORECAST AREA.

.ISOLATED MODERATE TSTMS FROM 06N TO 08N W OF 163E...AND FROM 08N
TO 12N BETWEEN 155W AND 160W.

$$

.FORECASTER WROE. HONOLULU HI.



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