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 180327
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC THU JUL 18 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 JUL 18 2019.
24 HOUR FORECAST VALID 0000 UTC JUL 19 2019.
48 HOUR FORECAST VALID 0000 UTC JUL 20 2019.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N166E TO 28N160E NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.TROUGH FROM 23N177E TO 16N179E MOVING W 10 KT. SCATTERED
MODERATE TSTMS WITHIN 300 NM E OF TROUGH. WINDS EASED TO 20 KT OR
LESS.
.24 HOUR FORECAST WEAK TROUGH FROM 24N171E TO 17N171E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.WEAK LOW DISPLACED NEAR 11N176E 1009 MB MOVING W SLOWLY. TROUGH
FROM 08N160E TO LOW TO 10N176W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH FROM 12N169E TO 06N167E
.48 HOUR FORECAST TROUGH FROM 15N167E TO 15N164E TO 07N164E.

.NEW TROUGH FROM 19N172W TO 15N171W TO 10N173W MOVING W 10 KT AND
DISSIPATING. ISOLATED MODERATE TSTMS WITHIN 210 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N177E TO 26N160E NEARLY STATIONARY AND SLOWLY
ERODING FROM THE W.

.NE WINDS 20 TO 25 KT FROM 16N TO 25N E OF 158W.
.24 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 14N TO 22N E OF
158W...AND FROM 08N TO 16N BETWEEN 163W AND 170W.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 16N TO 20N BETWEEN
154W AND 159W.

.SEAS 8 TO 9 FT FROM 10N TO 17N BETWEEN 151W AND 158W.
.24 HOUR FORECAST SEAS 8 TO 10 FT FROM 10N TO 16N BETWEEN 154W
AND 158W. SEAS 8 TO 9 FT FROM 13N TO 23N E OF 153W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 12N TO 20N BETWEEN 148W AND
161W.

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

.ITCZ FROM 08N140W TO 05N153W TO 11N163W. SCATTERED MODERATE TSTMS
WITHIN 240 NM OF ITCZ E OF 154W. ISOLATED MODERATE TSTMS WITHIN
120 NM OF ITCZ ELSEWHERE.

.ISOLATED MODERATE TSTMS S OF 06N W OF 166E.

$$

.HONOLULU FORECAST OFFICE.


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