Gale Warning 59, NWS Fairbanks, AK

620 
FZAK69 PAFG 232315
OFFAFG

Offshore Waters Forecast
National Weather Service Fairbanks AK
315 PM AKDT Fri Jun 23 2017

Offshore Waters Forecast for the US Arctic Waters

Sea forecasts represent an average of the highest one-third of
the combined wind wave and swell height. Individual waves may be
twice as high.

PKZ599-241215-
315 PM AKDT Fri Jun 23 2017

.SYNOPSIS FOR ARCTIC WATERS...
A 985 mb low currently sits near 83N 178E with a trough extending
to Wrangel Island. A surface ridge stretches from the Chukotsk 
Peninsula south into Bristol Bay. This ridge combined with the 
aforementioned low will will create a tight pressure gradient 
across the Chukchi Sea Coast on Saturday. The pressure gradient 
will relax on Sunday with the low moving to the north and surface 
high building northward across the state.


$$

PKZ500-241215-
Western US Arctic Offshore-
315 PM AKDT Fri Jun 23 2017

...GALE WARNING IN EFFECT THROUGH SATURDAY AFTERNOON...

.Tonight...S winds 35 kt. Seas 11 ft. Fog through the night. 
.SAT...SW winds 35 kt. Seas 13 ft. Fog in the morning. Rain 
through the day.
.SAT NIGHT...NW winds 35 kt. Seas 13 ft. 
.SUN...W winds 15 kt. Seas 7 ft. 
.SUN NIGHT...SW winds 15 kt. Seas 4 ft. 
.MON...NE winds 10 kt. Seas 4 ft. 
.TUE...SW winds 10 kt. Seas 5 ft. 
.WED...S winds 15 kt. Seas 3 ft.  

$$

PKZ505-241215-
Central US Arctic Offshore-
315 PM AKDT Fri Jun 23 2017

No forecast as area is mostly ice-covered.

$$

PKZ510-241215-
Eastern US Arctic Offshore-
315 PM AKDT Fri Jun 23 2017

No forecast as area is mostly ice-covered.

$$

Jun 17

Northern Alaska Forecast Discussion
National Weather Service Fairbanks AK
148 AM AKDT Fri Jun 23 2017

.DISCUSSION...
Seasonal summer time pattern to continue over northern Alaska. An
upper level ridge currently centered over Beaver Creek in the
Yukon will continue to drift slowly to the east and northeast
today and Saturday as a long wave trough over the Bering Strait
slowly digs south and east into the western interior and western
north slope today and into the central interior and central north
slope Saturday.

A weak thermal trough along a Arctic Village to McGrath line will
continue to weaken as surface high pressure builds north and east
into the western and central interior. Moisture rotating around a
1010 mb low in the Gulf of Alaska will bring an increase in
moisture in the low and mid levels of the atmosphere over the
southern interior and will increase instability over the southeast
interior today and saturday. Scattered rain showers and isolated
thunderstorms are expected along and south and east of a line from
Anvik to Manely Hot Springs to Fairbanks to just north of Eagle.

Expect mostly dry conditions with partly cloudy skies north and
west of this line over the northeast, central and western
interior. A weak front along the west coast will produce scattered
showers west of White Mountain as well as areas of fog and low
ceilings.

Southwest winds along the western north slope will continue and
increase to the 20 to 35 range this afternoon, tonight and
saturday as the pressure gradient between the building surface
high over the southwest interior and a low pressure trough over
the Chukchi Sea builds. Expect moderate surf with 1 to 2 feet
above normal tides along the western north slope today through
Saturday.

Coastal Hazard Potential Days 3 and 4...None.

&&

.FIRE WEATHER...
Relative Humidity value are expected to remain above 25 percent
in the Central and Eastern interior, except for the Yukon Flats to
the northeast Brooks Range where they will dip into the low 20s.
In the Western Interior and West Coast values will generally be in
the 30s and 40s. A weak pressure gradient over the Interior
through Sunday will keep sustained winds below Red Flag criteria
across the forecast area.

&&

.HYDROLOGY...No concerns at this time.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
Small Craft Advisory for PKZ210-PKZ220-PKZ225-PKZ230.

Gale Warning for PKZ230.

Brisk Wind Advisory for PKZ235.
&&

CCC JUN 17