National Weather Service United States Department of Commerce

Unsettled Along the West Coast; Lake Effect Snow in the Great Lakes

The weather along the West Coast from the Pacific Northwest to northern California will remain unsettled this weekend with rain expected along the coast, a mix of rain and snow in inland valleys, and snow in the mountains. Lake effect snow will be possible near the Lower Great Lakes this weekend. Well above average temperatures are expected in the Northern and Central Plains through the weekend. Read More >

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FZPN40 PHFO 060316
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SAT MAR 06 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 06 2021.
24 HOUR FORECAST VALID 0000 UTC MAR 07 2021.
48 HOUR FORECAST VALID 0000 UTC MAR 08 2021.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N165E TO 22N160E MOVING E 10 KT N OF 26N...AND NEARLY
STATIONARY ELSEWHERE.
.24 HOUR FORECAST WEAK FRONT FROM 30N168E TO 22N160E.
.48 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N170E TO 23N167E
TO 17N167E.

.WEAK FRONT FROM 26N140W TO 24N148W NEARLY STATIONARY.
.24 HOUR FORECAST DISSIPATING FRONT FROM 26N140W TO 24N151W.
.48 HOUR FORECAST FRONT DISSIPATED. NEW FRONT FROM 29N140W TO
28N158W. NE TO E WINDS 20 TO 25 KT N OF FRONT E OF 150W.

.TROUGH FROM 08N149W TO 05N152W TO 01N156W MOVING W 10 KT. ISOLATED
MODERATE TSTMS FROM 04N TO 07N BETWEEN 147W AND 152W.
.24 HOUR FORECAST TROUGH FROM 06N158W TO 02N160W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 06N160E TO 08N167E TO 08N175E MOVING N 10 KT. ISOLATED
MODERATE TSTMS FROM 04N TO 09N W OF 177E.
.24 HOUR FORECAST WEAK TROUGH FROM 09N167E TO 11N173E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 22N168E TO 19N168E TO 16N165E MOVING WNW SLOWLY.
.24 HOUR FORECAST TROUGH FROM 24N168E TO 19N166E.
.48 HOUR FORECAST TROUGH MERGED WITH TROUGH DESCRIBED IN FIRST ENTRY
ABOVE.

.NE TO E WINDS 20 TO 25 KT FROM 21N TO 28N BETWEEN 155W AND 180W. E
TO SE WINDS 20 TO 25 KT N OF 21N BETWEEN 172E AND 180E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 08N TO 20N E OF 148W...
AND FROM 20N TO 27N BETWEEN 155W AND 172W.
.48 HOUR FORECAST E WINDS 20 TO 25 KT FROM 20N TO 26N BETWEEN 152W
AND 168W. NE TO E WINDS 20 TO 25 KT FROM 08N TO 14N E OF 150W.

.RIDGE FROM 30N180E TO 25N165E MOVING ENE 10 KT.

.WINDS 20 KT OR LESS REST OF FORECAST AREA.

.SEAS 12 TO 14 FT N OF 22N E OF 149W. SEAS MAINLY 8 TO 12 FT
ELSEWHERE N OF 05N E OF 170E. SEAS 8 TO 10 FT N OF 18N W OF 170E.
.24 HOUR FORECAST SEAS 8 TO 12 FT N OF 05N E OF 150W. SEAS MAINLY 8
TO 10 FT N OF 06N BETWEEN 150W AND 171W. SEAS MAINLY 8 TO 9 T N OF
LINE FROM 09N171W TO 09N176E TO 19N165E.
.48 HOUR FORECAST SEAS MAINLY 8 TO 11 FT FROM 02N TO 22N E OF
155W...AND N OF 27N E OF 160W. SEAS MAINLY 8 TO 9 FT FROM 19N TO 27N
BETWEEN 155W AND 177W.

.SEAS 8 FT OR LESS REST OF FORECAST AREA.

.SCATTERED MODERATE TSTMS FROM 09N TO 11N BETWEEN 161W AND 165W.
ISOLATED MODERATE TSTMS FROM 19N TO 22N BETWEEN 162W AND 173W.

.ITCZ 04N140W TO 06N147W. ISOLATED MODERATE TSTMS FROM 03N TO 08N E
OF 147W.

$$

.FORECASTER KINEL. HONOLULU HI.