National Weather Service United States Department of Commerce

Unsettled Weather In the West; Above Average Temperatures in the Central U.S.

A relatively quiet stretch of weather is expected across much of the Continental U.S. with the exception of the West Coast where rain and higher elevation snow will impact the Northwest and northern California through Tuesday. A critical fire weather risk is expected in Kansas and elevated in the surrounding areas. Record high temperatures are possible across the Northern Plains and Upper Midwest. Read More >

000
FZPS40 PHFO 071530
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1730 UTC SUN MAR 07 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 1200 UTC MAR 07 2021.
24 HOUR FORECAST VALID 1200 UTC MAR 08 2021.
48 HOUR FORECAST VALID 1200 UTC MAR 09 2021.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S180E 18S170E 13S160E MOVING SE SLOWLY. WINDS 20 TO 30 KT
S OF LINE 25S174E 20S178E 25S175W. SEE SEAS BELOW. ISOLATED MODERATE
TSTMS WITHIN 180 NM NE OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED. WINDS 20 TO 25 KT S OF 23S
BETWEEN 177W AND 168W. SEE SEAS BELOW.
.48 HOUR FORECAST WINDS DECREASED TO 20 KT OR LESS. SEE SEAS BELOW.

.TROUGH 20S120W 19S135W NEARLY STATIONARY. ISOLATED MODERATE TSTMS
WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH LITTLE CHANGE.
.48 HOUR FORECAST TROUGH 20S120W 23S130W.

.TROUGH 25S146W 21S150W 16S155W NEARLY STATIONARY. ISOLATED MODERATE
TO STRONG TSTMS WITHIN 180 NM NE AND 240 NM SW OF TROUGH.
.24 HOUR FORECAST TROUGH 25S145W 20S150W 15S155W. WINDS 20 TO 25 KT
WITHIN 120 NM SW OF TROUGH.
.48 HOUR FORECAST TROUGH 25S146W 21S150W 16S155W. WINDS 20 TO 25 KT
WITHIN 120 NM OF TROUGH. SEE SEAS BELOW.

.TROUGH 10S172E 14S180W 15S170W MOVING W SLOWLY. ISOLATED MODERATE
TSTMS WITHIN 90 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 25S162W 21S163W MOVING E SLOWLY AND DISSIPATING.
.24 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE 25S135W 14S150W 10S170W 10S180E 07S170E 03S160E NEARLY
STATIONARY.

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

.SEAS 18 TO 22 FT S OF 23S BETWEEN 176E AND 179W. SEAS 12 TO 18 FT
ELSEWHERE S OF LINE 25S168E 19S173E 20S179E 25S179W. SEAS 8 TO 12 FT
ELSEWHERE S OF LINE 15S160E 22S167E 16S176E 20S179W 25S177W. SEAS 8
TO 10 FT S OF 22S BETWEEN 134W AND 121W.
.24 HOUR FORECAST SEAS 12 TO 14 FT S OF 22S BETWEEN 176W AND 168W.
SEAS 8 TO 12 FT ELSEWHERE S OF LINE 16S160E 22S165E 13S173E 20S174W
22S168W 25S165W.
.48 HOUR FORECAST SEAS 8 TO 12 FT S OF LINE 25S169E 15S175E 20S173W
19S165W 25S158W. SEAS 8 TO 10 FT WITHIN 120 NM OF LINE 19S152W
25S146W.

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

.ISOLATED MODERATE TSTMS IN AREA 05S178E 14S158W 21S165W 12S175E
07S169E 05S178E.

$$

.FORECASTER POWELL. HONOLULU HI.