Storm Warning 90, NWS Anchorage, AK

158 
FZAK62 PAFC 232305
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT MON SEP 23 2013

OFFSHORE WATERS FORECAST FOR THE BERING SEA

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT.

PKZ499-241500-
400 PM AKDT MON SEP 23 2013
.SYNOPSIS FOR CENTRAL BERING SEA...
A 989 MB LOW NEAR 50N 179E WILL STRENGTHEN TO 971 MB TUE AFTERNOON
NEAR 54N 174W. THE LOW WILL WEAKEN TO 977 MB NEAR 56N 168W WED
MORNING AND CONTINUE TO WEAKEN TO 985 MB NEAR 57N 162W WED NIGHT.
HIGH PRESSURE WILL BUILD OVER THE WESTERN BERING WED MORNING.
$$

PKZ411-241500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT MON SEP 23 2013

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...NE WIND 15 TO 25 KT BECOMING N 25 TO 35 KT AFTER MIDNIGHT.
SEAS 6 FT BUILDING TO 12 FT. RAIN.
.TUE...N WIND 30 TO 40 KT...EXCEPT DIMINISHING TO 20 KT IN THE
AFTERNOON W OF 175E. SEAS 12 TO 17 FT. 
.TUE NIGHT...NW WIND 25 TO 35 KT DIMINISHING TO 10 TO 20 KT AFTER
MIDNIGHT. SEAS 15 FT. W OF 176E...NW WIND 10 TO 20 KT BECOMING S 15
TO 25 KT AFTER MIDNIGHT. SEAS 10 FT. 
.WED...S WIND 25 KT. SEAS 11 FT. 
.WED NIGHT...SW WIND 30 KT. SEAS 10 FT. 
.THU...W WIND 35 KT. SEAS 17 FT. 
.FRI...NW WIND 20 KT. SEAS 14 FT. 
.SAT...SW WIND 15 KT. SEAS 11 FT.  

$$

PKZ412-241500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT MON SEP 23 2013

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...E WIND 15 TO 25 KT INCREASING TO NE 30 TO 40 KT AFTER
MIDNIGHT. SEAS 8 TO 12 FT. PATCHY FOG. RAIN.
.TUE...NE WIND 45 KT EXCEPT BECOMING VARIABLE 20 KT E OF 174W IN THE
AFTERNOON. SEAS 12 FT BUILDING TO 18 FT. PATCHY FOG. RAIN.
.TUE NIGHT...N WIND 45 KT DIMINISHING TO 25 TO 35 KT AFTER MIDNIGHT.
SEAS 14 TO 19 FT. 
.WED...NW WIND 35 KT. SEAS 15 FT. 
.WED NIGHT...SW WIND 20 KT. SEAS 8 FT. 
.THU...SW WIND 30 KT. SEAS 15 FT. 
.FRI...NW WIND 25 KT. SEAS 22 FT. 
.SAT...W WIND 25 KT. SEAS 15 FT.  

$$

PKZ413-241500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT MON SEP 23 2013

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...E TO N WIND 15 KT. WIND INCREASING TO 35 KT AFTER MIDNIGHT
N OF 55N. SEAS 10 FT. PATCHY FOG. RAIN.
.TUE...N WIND 45 KT EXCEPT S 25 KT E OF 174W. SEAS 14 FT BUILDING TO
19 FT IN THE AFTERNOON. RAIN.
.TUE NIGHT...NW WIND 35 TO 45 KT. SEAS 15 TO 20 FT. 
.WED...W WIND 35 KT. SEAS 17 FT. 
.WED NIGHT...SW WIND 25 KT. SEAS 10 FT. 
.THU...SW WIND 35 KT. SEAS 17 FT. 
.FRI...NW WIND 25 KT. SEAS 18 FT. 
.SAT...W WIND 25 KT. SEAS 16 FT.  

$$

PKZ414-241500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT MON SEP 23 2013

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...SE WIND 15 TO 25 KT. WIND BECOMING E 40 KT AFTER MIDNIGHT
S OF 56N. SEAS 6 TO 9 FT. PATCHY FOG. RAIN.
.TUE...E WIND 40 KT BECOMING S 30 TO 40 KT IN THE AFTERNOON. SEAS 13
FT. PATCHY FOG. RAIN.
.TUE NIGHT...S WIND 40 KT. WIND BECOMING NW 25 TO 40 KT AFTER
MIDNIGHT W OF 167W. SEAS 15 FT. RAIN.
.WED...NW WIND 40 KT. SEAS 14 FT. 
.WED NIGHT...NW WIND 30 KT. SEAS 12 FT. 
.THU...SW WIND 30 KT. SEAS 16 FT. 
.FRI...NW WIND 40 KT. SEAS 26 FT. 
.SAT...NW WIND 30 KT. SEAS 21 FT.  

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
145 PM AKDT SUN SEP 22 2013

.MODELS GOOD THROUGH TUE THEN THEN EC UK BECOME FASTER BUT BOTH TAKE A WEAKENING
LOW EAST ACROSS KODIAK ISLAND AND INTO THE GULF LATE WED AFTERNOON AND NIGHT.
WINDS APPEAR TO HAVE PEAKED ACROSS THE KODIAK ISLAND AREAS WITH GUSTS OF 60 TO
65 MPH AT THE STATE AIRPORT AND EVEN HIGHER GUSTS ELSEWHERE IN THE ZONE. THIS
WIND WAS STRONG ENOUGH TO KICK UP DUST/ASH OFF THE ALEUTIAN RANGE AND BLOW IT
OVER THE ISLAND. SHOWERS AND WINDY CONDITIONS EXTEND BACK TO THE ALASKA
PENINSULA WITH GUSTS OF 30 TO 40 MPH. PERIODS OF LIGHT PRECIPITATION WILL
CONTINUE OVER SOUTH CENTRAL ALASKA BETWEEN 147W AND 150W WITH SNOW LEVELS
VARYING AROUND 500 FT. SNOW WILL BE MORE SCATTERED ACROSS THE COPPER RIVER BASIN
AND CONFINED TO THE UPSLOPE AREAS. THIS WILL ALL END FROM WEST TO EAST MON
AFTERNOON AND NIGHT AS HIGH PRESSURE COMES IN FROM BRISTOL BAY. NEXT STORM FROM
THE NORTHWEST PACIFIC WILL STRENGTHEN AS IT MOVES TO THE CENTRAL ALEUTIANS MON
EVENING. THIS WILL MOVE TO BETWEEN ST GEORGE ISLE AND DUTCH HARBOR TUE EVENING
WITH A CENTRAL PRESSURE OF 968 MB. GALES AND POSSIBLY STORM FORCES WINDS WILL
ACCOMPANY THE SYSTEM. AFTER A NICE MONDAY AFTERNOON AND NIGHT RAIN AND WIND WILL
AGAIN SPREAD TO THE BRISTOL BAY AND THE SOUTHWEST COAST, AND THEN TO KODIAK
ISLAND BY LATE TUE AFTERNOON. AT THE SAME TIME LIGHT WINDS AND DRY WEATHER WILL
BE SEEN FROM THE GULF NORTH TO THE ALASKA RANGE. CHINOOK TYPE WINDS WILL BE ON
THE INCREASE ACROSS ALL OF SOUTHERN MAINLAND ALASKA WITH THE HIGHEST GUSTS OVER
THE ALASKA PENINSULA AND BRISTOL BAY.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...GALE 120 136 137 138 155 160 165.
FIRE WEATHER...NONE.

*** SEP 13

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1253 AM AKDT MON SEP 23 2013

AKZ171-231500-

...MINOR ASHFALL POSSIBLE THROUGH EARLY THIS MORNING ACROSS
KODIAK ISLAND...

STRONG NORTHWEST WINDS HAVE RE-SUSPENDED DUST AND ASH FROM THE 1912
NOVARUPTA/KATMAI VOLCANIC ERUPTION AND SPREAD IT ACROSS KODIAK
ISLAND. MINOR DUST OR ASHFALL WILL BE POSSIBLE ACROSS THE ISLAND
THROUGH EARLY THIS MORNING. ANY ASHFALL ACCUMULATION SHOULD BE
LIMITED TO A TRACE.