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 220331
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN APR 22 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 22 2018.
24 HOUR FORECAST VALID 0000 UTC APR 23 2018.
48 HOUR FORECAST VALID 0000 UTC APR 24 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW NEAR 05N161E 1007 MB MOVING W SLOWLY...DISSIPATING TROUGH
FROM LOW TO 13N162E...AND FROM 05N160E MOVING W SLOWLY. SCATTERED
MODERATE TO ISOLATED STRONG TSTMS S OF 05N W OF 169E. ISOLATED
MODERATE TSTMS 10N ADN 05N W OF 170E.
.24 HOUR FORECAST LOW DISSIPATED TO A TROUGH JUST W OF FORECAST
WATERS ALONG 159E BETWEEN 02N AND 10N.

.FRONT 30N161E TO 27N160E MOVING E 10 KT. S WINDS 20 TO 25 KT N
OF 28N W OF 162E.
.24 HOUR FORECAST WEAKENING FRONT FROM 30N166E TO 27N164E TO
23N160E. S TO SE WINDS 20 TO 25 KT WITHIN 240 NM E OF FRONT N OF
29N.
.48 HOUR FORECAST DISSIPATING FRONT FROM 30N174E TO 27N170E.
S TO SE WINDS DIMINISHED TO 20 KT OR LESS.

.TROUGH FROM 05N162W TO 10N160W MOVING W 15 KT AND DISSIPATING.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 07N178E TO 14N179W MOVING W 15 KT. SCATTERED
MODERATE TSTMS WITHIN 400 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 07N172E TO 13N175E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 30N171W TO 28N175W TO 28N180W MOVING S AND SE TO
10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 24N155W TO 28N151W MOVING W SLOWLY AND BECOMING
STATIONARY BY 221200 UTC.
.24 HOUR FORECAST FROM 25N156W TO 27N153W TO 30N152W.
.48 HOUR FORECAST TROUGH DISSIPATED.]

.24 HOUR FORECAST NEW FRONT FROM 30N157W TO 29N165W MOVING SE
15 KT.
.48 HOUR FORECAST DISSIPATING FRONT FROM 30N145W TO 27N154W TO
27N160W. NE WINDS 20 TO 25 KT N OF FRONT.

.NE TO E WINDS 20 TO 25 KT FROM 09N TO 20N E OF 170W...FROM 12N
TO 20N FROM 170W TO 170E...AND FROM 10N TO 18N W OF 170E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT FROM 10N TO 23N
BETWEEN 166W AND 172E...FROM 09N TO 19N BETWEEN 148W TO 166W...
AND FROM 10N TO 18N W OF 164E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 30 KT BETWEEN 13N AND 24N
FROM 168W TO 170E. SEAS 20 TO 25 KT BETWEEN 13N AND 22N W OF
170E. NE WINDS 20 TO 25 KT BETWEEN 15N AND 23N FROM 168W TO
160W.

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

.SEAS 8 TO 10 FT BETWEEN 06N AND 22N E OF 155W...FROM 09N TO 18N
ELSEWHERE E OF 165W. SEAS 8 TO 9 FT BETWEEN 10N AND 20N FROM 165W
TO 180W.
.24 HOUR FORECAST SEAS 8 TO 10 FT BETWEEN 09N AND 24N FROM 165W TO
174E...AND FROM 06N TO 18N E OF 165W. SEAS 8 TO 9 FT BETWEEN 10N
AND 17N W OF 165E...AND N OF 26N BETWEEN 155W AND 166W.
.48 HOUR FORECAST SEAS 8 TO 11 FT BETWEEN 08N AND 24N FROM 150W
TO 177E. SEAS 8 TO 9 FT BETWEEN 12N AND 20N FROM 177E TO 170E...
AND N OF 27N E OF 160W.

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

.ITCZ FROM 07N140W TO 08N159W. SCATTERED MODERATE TO LOCALLY
STRONG TSTMS WITHIN 200 NM OF ITCZ.

$$

.FORECASTER LAU. HONOLULU HI.


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