Skip Navigation Links weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
Ocean Prediction Center
Local forecast by
"City, St" or "ZIP"

 


NCEP Newsletter

Marine Weather
  OPC Products
  Atlantic | Pacific
  Mobile | RSS XML/RSS logo
  Special Support
  Experimental
  GRIB/GRIB2 data
  Product Guides
  Product Archive
  Fax Schedules
  Marine Weather Sites
  Quality Control
  Satellite Imagery
  Verification

Ocean Products

Coastal Guidance

Probabilistic Guidance

Environmental
Prediction Guidance

Outreach

About Us

Contact Us

All OPC Social Media Feeds
Follow the Ocean Prediction Center on Facebook Follow the Ocean Prediction Center on Twitter
            Subscribe to the Ocean Prediction Center on YouTube
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.

OPC is updating its website format and changing its URL to https://ocean.weather.gov on August 30, 2017. You may view the preview site at https://para.ocean.weather.gov and submit comments here. Please see the offical Service Change Notice for more information.

NOAA>NWS>NCEP>OPC>Marine>Pacific>High Seas>North Pacific High Seas Forecast

North Pacific High Seas Forecast

[Printable Version]   [Alt Link/Previous Versions]
FZPN01 KWBC 271602
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC THU JUL 27 2017 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

PAN PAN 

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

SYNOPSIS VALID 1200 UTC JUL 27. 
24 HOUR FORECAST VALID 1200 UTC JUL 28. 
48 HOUR FORECAST VALID 1200 UTC JUL 29. 

.WARNINGS.

...GALE WARNING...
.LOW 40N161W 1021 MB MOVING NE 35 KT. WITHIN 180 NM NW AND 240 
NM W QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST LOW 49N145W 1006 MB. WITHIN 240 NM E OF A 
FRONT FROM LOW CENTER TO 45N144W TO 40N151W WINDS 20 TO 30 KT. 
SEAS TO 9 FT.
.48 HOUR FORECAST LOW 52N140W 995 MB. WITHIN 240 NM S QUADRANT 
WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 300 NM 
N...420 NM E...360 NM S AND 240 NM SW QUADRANTS WINDS TO 25 KT. 
SEAS TO 11 FT. 

.SYNOPSIS AND FORECAST. 

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS IN A STATE OF UNREST. 
MARINERS TRAVELING IN THE VICINITY OF BOGOSLOF VOLCANO ARE URGED 
TO EXERCISE CAUTION. IF MARINERS ENCOUNTER ANY VOLCANIC 
ASH...REPORT THE OBSERVATION TO THE OCEAN PREDICTION CENTER BY 
CALLING 301-683-1520. 

.BETWEEN 124W AND A LINE FROM 43N126W TO 35N130W AREA OF N WINDS 
TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST BETWEEN 123W AND A LINE FROM 43N126W TO 
34N130W AREA OF N WINDS 20 TO 30 KT. SEAS TO 11 FT. 
.48 HOUR FORECAST BETWEEN 122W AND A LINE FROM 44N127W TO 
33N130W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS TO 12 FT.

.LOW 34N172E 1012 MB MOVING W 15 KT. WITHIN 360 NM N QUADRANT 
WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE OVER FORECAST 
WATERS WITHIN 660 NM W AND 480 NM N AND NE QUADRANTS WINDS TO 25 
KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 34N165E 1013 MB. BETWEEN 179W AND A LINE 
FROM 41N164E TO 37N160E TO 30N175E WINDS TO 25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW DISSIPATED W OF AREA. CONDITIONS DESCRIBED 
BELOW WITH LOW 31N170E. 

.OVER FORECAST WATERS N OF A LINE FROM 46N160E TO 53N180W TO 
60N172W AREA OF SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST LOW N OF AREA 67N171W 994 MB. WITHIN 240 NM SE 
SEMICIRCLE AND W OF A LINE FROM 63N171W TO 49N167W AREA OF WINDS 
TO 25 KT. SEAS TO 10 FT...HIGHEST NEAR 55N176W.
.48 HOUR FORECAST LOW 66N169W 1009 MB AND A NEW LOW 54N159W 1007 
MB. WITHIN 720 NM SW QUADRANT OF NEW LOW WINDS TO 25 KT. SEAS TO 
8 FT.

.FROM 47N TO 54N BETWEEN 164W AND 172W AREA OF NW WINDS TO 25 
KT. SEAS TO 8 FT. 
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.COMPLEX LOW WITH MEAN CENTER 55N149W 1009 MB MOVING SE 15 KT. 
BETWEEN 240 NM AND 420 NM W QUADRANT WINDS TO 25 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST LOW AND CONDITIONS MERGED WITH LOW 49N145W IN 
WARNINGS SECTION.

.48 HOUR FORECAST LOW 31N170E 1008 MB. OVER FORECAST WATERS 
WITHIN 480 NM E AND 540 NM N QUADRANTS WINDS 20 TO 30 KT. SEAS 
TO 11 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 53N 
BETWEEN 139W AND 145W AND FROM 40N TO 43N BETWEEN 152W AND 160W 
AND OVER FORECAST WATERS W OF A LINE FROM 62N172W TO 48N157W TO 
40N160E.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 52N BETWEEN 138W AND 
145W AND WITHIN 120 NM OF 55N166W AND W OF A LINE FROM 58N178E 
TO 47N167W TO 38N175E.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 58N178E TO 52N180W 
TO 47N167W TO 38N174E.

.HIGH 37N144W 1030 MB MOVING SE 10 KT THEN BECOMING STATIONARY 
AFTER 24 HOURS.
.24 HOUR FORECAST HIGH 36N138W 1026 MB. 
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 48N180W 1037 MB MOVING SE 05 KT. 
.24 HOUR FORECAST HIGH 46N178W 1036 MB. 
.48 HOUR FORECAST HIGH 43N177W 1032 MB. 

.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.

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 1200 UTC THU JUL 27.
24 HOUR FORECAST VALID 1200 UTC FRI JUL 28.
48 HOUR FORECAST VALID 1200 UTC SAT JUL 29.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE HILARY NEAR 17.6N 116.0W 986 MB AT 1500 UTC JUL 27 
MOVING WNW OR 290 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 70 KT 
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE 
QUADRANT...80 NM SE QUADRANT...50 NM SW QUADRANT...AND 70 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE AND 
120 NM S SEMICIRCLE WITH SEAS TO 26 FT. ELSEWHERE WITHIN 180 NM 
OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA 
FROM 14N TO 23N BETWEEN 112W AND 120W WINDS 20 KT OR LESS. SEAS 
TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HILARY NEAR 18.7N 118.9W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
150 NM OF CENTER WITH SEAS TO 26 FT. ELSEWHERE WITHIN 210 NM OF 
CENTER WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA 
BOUNDED BY 21N127W TO 25N121W TO 20N113W TO 13N118W TO 21N127W 
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM HILARY NEAR 20.2N 122.8W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE 
WINDS WITHIN 80 NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND 
60 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N 
SEMICIRCLE AND 150 NM S SEMICIRCLE WITH SEAS TO 24 FT. ELSEWHERE 
WITHIN 210 NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WINDS 20 TO 
33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA BOUNDED BY 21N130W TO 
26N125W TO 24N116W TO 15N118W TO 21N130W WINDS 20 KT OR LESS. 
SEAS TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM HILARY NEAR 21.2N 127.3W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM HILARY NEAR 21.8N 131.4W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW HILARY NEAR 22.6N 
134.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM IRWIN NEAR 15.0N 124.2W 1000 MB AT 1500 UTC JUL 
27 MOVING W OR 270 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 50 KT 
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM N 
SEMICIRCLE AND 50 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 
90 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE WITH SEAS TO 18 FT. 
ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 
12 FT. REMAINDER OF AREA FROM 10N TO 20N BETWEEN 120W AND 129W 
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM IRWIN NEAR 15.0N 125.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 80 NM N SEMICIRCLE AND 60 NM S SEMICIRCLE. SEAS 12 
FT OR GREATER WITHIN 105 NM OF CENTER WITH SEAS TO 18 FT. 
ELSEWHERE WITHIN 180 NM OF CENTER EXCEPT WITHIN 210 NM SE 
QUADRANT WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA 
BOUNDED BY 21N127W TO 12N117W TO 08N126W TO 17N133W TO 21N127W 
WINDS 20 KT OR LESS. SEAS TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IRWIN NEAR 15.5N 125.0W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. LITTLE CHANGE IN 
RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER 
WITH SEAS TO 20 FT. ELSEWHERE WITHIN 150 NM OF CENTER EXCEPT 
WITHIN 240 NM SE QUADRANT WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. 
REMAINDER OF AREA BOUNDED BY 21N130W TO 15N117W TO 09N122W TO 
10N128W TO 17N133W TO 21N130W WINDS 20 KT OR LESS. SEAS TO 11 FT 
IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IRWIN NEAR 19.0N 125.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM IRWIN NEAR 23.0N 129.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST...DISSIPATED.

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.

.WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W TO 15N95W TO 
14N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 
25 KT. SEAS 8 FT IN SW SWELL.
.12 HOUR FORECAST GULF OF TEHUANTEPEC WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF A LINE FROM 16N95W 
TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC...WINDS 20 KT OR 
LESS. SEAS 8 FT IN SW SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST GULF OF TEHUANTEPEC WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.S OF 02S BETWEEN 88W AND 114W WINDS 20 KT OR LESS. SEAS 8 FT IN 
S TO SW SWELL.
.24 HOUR FORECAST S OF 04N BETWEEN 81W AND 89W...S OF 08N 
BETWEEN 92W AND 106W...AND ELSEWHERE S OF 01S BETWEEN 89W AND 
115W WINDS 20 KT OR LESS. SEAS TO 9 FT IN S TO SW SWELL.
.48 HOUR FORECAST S OF 07N BETWEEN 80W AND 88W...S OF 10N 
BETWEEN 91W AND 114W...AND ELSEWHERE S OF 01S BETWEEN 89W AND 
117W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN S TO SW SWELL.

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

CONVECTION VALID AT 1500 UTC THU JUL 27...

.HURRICANE HILARY...NUMEROUS MODERATE SCATTERED STRONG FROM 17N 
TO 19N BETWEEN 113W AND 116W. SCATTERED MODERATE ELSEWHERE FROM 
15N TO 20N BETWEEN 110W AND 118W.

.TROPICAL STORM IRWIN...NUMEROUS MODERATE SCATTERED STRONG 
WITHIN 105 NM SW SEMICIRCLE. SCATTERED MODERATE ELSEWHERE FROM 
13N TO 17N BETWEEN 123W AND 127W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N79W TO 08N98W TO 12N109W. ITCZ FROM 
10N130W TO 07N140W. SCATTERED MODERATE FROM 03N TO 08N E OF 
81W...FROM 06N TO 11N BETWEEN 93W AND 98W...FROM 05N TO 14N 
BETWEEN 101W AND 115W...AND FROM 06N TO 11N BETWEEN 130W AND 
139W.

$$
.FORECASTER HUFFMAN. NATIONAL HURRICANE CENTER.


NOAA/ National Weather Service
National Centers for Environmental Prediction
NOAA Center for Weather and Climate Prediction (NCWCP)
Ocean Prediction Center
Mr. Darin Figurskey
Chief, Ocean Forecast Branch
NCWCP, W/NP41
5830 University Research Court
College Park, Maryland 20740-3818

Phone: 301-683-1520
Fax: 301-683-1501 (SDM), 301-683-1545 (back office-administrative)

Disclaimer
Credits
Information Quality
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
E-mail: ncep.list.opc_web@noaa.gov

Page last modified:  Monday, July 25, 2016 12:55:39 UTC