North Pacific High Seas Forecast

FZPN01 KWBC 292152
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN JUN 29 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC JUN 29. 
24 HOUR FORECAST VALID 1800 UTC JUN 30.
48 HOUR FORECAST VALID 1800 UTC JUL 01.

.WARNINGS.

...GALE WARNING...
.FROM 35N TO 44N BETWEEN 129W AND 124W AREA OF N WINDS 20 TO 30
KT. SEAS TO 3 M. 
.12 HOUR FORECAST FROM 41N TO 43N E OF 126W AREA OF N WINDS 25 TO
35 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 41N TO 43N E OF 126W AREA OF N WINDS 25 TO
35 KT. SEAS TO 3.5 M. ELSEWHERE WITHIN 180 NM EITHER SIDE OF A 
LINE
FROM 35N129W TO 43N125W AREA OF N WINDS 20 TO 30 KT. SEAS TO 3.5
M.
.48 HOUR FORECAST WITHIN 180 NM EITHER SIDE OF A LINE FROM
34N130W TO 43N124W AREA OF N WINDS 20 TO 30 KT. SEAS TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW NW OF AREA 59N170E 998 MB MOVING NE 10 KT. WITHIN AN AREA
BOUNDED BY A LINE FROM 60N179W TO 57N175W TO 49N169E TO 54N169E
TO 60N179W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW NW OF AREA 62N180W 998 MB. FROM 56N TO 59N
BETWEEN 176W AND 169W WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW 60N169W 998 MB. BETWEEN THE ALEUTIAN
ISLANDS AND A LINE FROM 46N169W TO 50N160W WINDS TO 25 KT. SEAS
TO 3 M. 

.24 HOUR FORECAST NEW LOW 45N169E 1014 MB. FROM 40N TO 42N
BETWEEN 166E AND 168E WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS DIMINISHED. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 90 NM OF THE
CALIFORNIA COAST FROM 34N TO 39N...WITHIN 120 NM EITHER SIDE OF A
LINE FROM 45N147W TO 52N136W...FROM 34N TO 40N BETWEEN 177E AND
175W...AND N OF 40N BETWEEN 164E AND 177W. 
.24 HOUR FORECAST DENSE FOG WITHIN 60 NM OF THE CALIFORNIA COAST
FROM 35N TO 39N...WITHIN AN AREA BOUNDED BY A LINE FROM 53N130W
TO 46N130W TO 45N141W TO 64N172W...AND WITHIN AN AREA BOUNDED BY
A LINE FROM 64N171W TO 59N165W TO 36N177W TO 39N162E TO 61N176W
TO 64N171W.
.48 HOUR FORECAST DENSE FOG WITHIN 60 NM OF THE CALIFORNIA COAST
FROM 35N TO 40N...WITHIN 120 NM EITHER SIDE OF A LINE FROM
42N145W TO 48N130W...FROM THE ALEUTIAN ISLANDS TO 60N BETWEEN
167W AND 160W...AND NW OF A LINE FROM 46N160E TO 51N169E TO
57N174E.

.FORECASTER CONNELLY. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC SUN JUN 29.
24 HOUR FORECAST VALID 1800 UTC MON JUN 30.
48 HOUR FORECAST VALID 1800 UTC TUE JUL 01.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM FLOSSIE NEAR 13.5N 100.4W 1005 MB AT 2100 UTC 
JUN 29 MOVING WNW OR 295 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 35 
KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM N 
SEMICIRCLE...0 NM SE QUADRANT AND 50 NM SW QUADRANT.  SEAS 4 M 
OR GREATER WITHIN 90 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE WITH 
SEAS TO 4.5 M. ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 150 NM 
NE QUADRANT WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST TROPICAL STORM FLOSSIE NEAR 15.5N 102.7W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 80 NM NW AND SE QUADRANTS...110 NM NE QUADRANT AND 
70 NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 60 NM OF 
CENTER...EXCEPT 120 NM NE QUADRANT WITH SEAS TO 6 M. ELSEWHERE 
WITHIN 90 NM OF CENTER...EXCEPT 135 NM NE QUADRANT WINDS 20 TO 
33 KT. SEAS 2.5 TO 4 M.
.36 HOUR FORECAST HURRICANE FLOSSIE NEAR 16.8N 104.3W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.48 HOUR FORECAST HURRICANE FLOSSIE NEAR 17.9N 106.0W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 120 NM NE QUADRANT...110 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 80 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 
NM OF CENTER...EXCEPT 150 NM SE QUADRANT WITH SEAS TO 8 M. 
ELSEWHERE OVER FORECAST WATERS WITHIN 120 NM OF CENTER...EXCEPT 
180 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M. REMAINDER 
OF THE AREA FROM 08N TO 15N AND W OF A LINE FROM 15N101W TO 
08N109W TO ANOTHER LINE FROM 15N105W TO 08N113W SW WINDS 20 TO 
25 KT. SEAS 8 TO 10 FT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE 
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE 
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.FROM 10N TO 11.5N E OF 89W...INCLUDING THE GULF OF 
PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE. 
.48 HOUR FORECAST LITTLE CHANGE.

.S OF 02S BETWEEN 110W AND 120W WINDS 20 KT OR LESS. SEAS 2.5 M 
IN SE TO S SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST S OF 02S BETWEEN 100 AND 120W WINDS 20 KT OR 
LESS. SEAS 2.5 M IN S SWELL.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 2100 UTC SUN JUN 29...

.T.S. FLOSSIE...NUMEROUS MODERATE TO SCATTERED STRONG CONVECTION 
IS NOTED FROM 10N TO 16.5N BETWEEN 97W AND 104W. SIMILAR 
CONVECTIVE ACTIVITY IS ELSEWHERE FROM 07N TO 11N BETWEEN 97W AND 
110W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS FROM 10N85W TO 11N95W...THEN 
CONTINUES W OF T.S. FLOSSIE FROM 14N110W TO 08N134W. THE ITCZ 
STRETCHES FROM 08N134W TO BEYOND 07N140W. ASIDE FROM THE 
CONVECTION RELATED TO T.S. FLOSSIE...SCATTERED MODERATE TO 
ISOLATED STRONG CONVECTION IS OBSERVED FROM 12N TO 16N BETWEEN 
110W AND 120W...AND 07N TO 12W BETWEEN 122W AND 135W.


.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$