Storm Warning 124, NWS Anchorage, AK

Issued

Sep 11, 2010, 4:00 PM AKDT (00:00 UTC)

Expired

Sep 12, 2010, 4:00 AM AKDT

In force

12 hr

Issued by

NWS Anchorage, AK

353 
FZAK62 PAFC 112303
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SAT SEP 11 2010

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.

PKZ499-121200-
400 PM AKDT SAT SEP 11 2010
.SYNOPSIS FOR CENTRAL BERING SEA...
HIGH PRESSURE REMAINS OVER THE EXTREME EASTERN BERING THROUGH SUN
MORNING. A 994 MB LOW NEAR 47N 175E STRENGTHENS TO 985 MB NEAR 60N
178E SUN AFTERNOON AND THEN MOVES INTO EASTERN RUSSIA.
$$

PKZ411-121200-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SAT SEP 11 2010

...GALE WARNING THROUGH SUNDAY...

.TONIGHT...S TO E WIND 35 KT. SEAS 8 TO 13 FT. PATCHY FOG. RAIN.
.SUN...E OF 178E...S TO E WIND 35 KT BECOMING W 25 KT IN THE
AFTERNOON. SEAS 11 TO 18 FT. W OF 178E...N TO W WIND 25 KT. SEAS 6 TO
11 FT. PATCHY FOG. RAIN.
.SUN NIGHT...SW WIND 25 KT. SEAS 8 TO 15 FT. PATCHY FOG. 
.MON...S WIND 25 KT. SEAS 10 FT. 
.MON NIGHT...S WIND 25 KT. SEAS 9 FT. 
.TUE...S WIND 25 KT. SEAS 9 FT. 
.WED...E WIND 30 KT. SEAS 8 FT. 
.THU...NE WIND 30 KT. SEAS 9 FT. 
$$

PKZ412-121200-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SAT SEP 11 2010

...STORM WARNING SUNDAY...

.TONIGHT...SE WIND 20 TO 30 KT INCREASING TO 30 TO 40 KT AFTER
MIDNIGHT. SEAS 8 TO 12 FT. PATCHY FOG. 
.SUN...SE WIND 35 TO 50 KT INCREASING TO 45 TO 55 KT BY AFTERNOON.
SEAS 10 TO 19 FT. PATCHY FOG. RAIN.
.SUN NIGHT...SE WIND 35 TO 45 KT BECOMING SW 15 TO 25 KT. SEAS 12 TO
18 FT. PATCHY FOG. RAIN.
.MON...SW WIND 20 KT. SEAS 14 FT. 
.MON NIGHT AND TUE...S WIND 25 KT. SEAS 10 FT. 
.WED ADN THU...SE WIND 30 KT. SEAS 9 FT. 
$$

PKZ413-121200-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SAT SEP 11 2010

...STORM WARNING THROUGH SUNDAY...

.TONIGHT...SE WIND 20 TO 30 KT INCREASING TO 35 TO 50 KT AFTER
MIDNIGHT. SEAS 7 TO 15 FT. PATCHY FOG. 
.SUN...SE WIND 40 TO 50 KT. SEAS 12 TO 18 FT. PATCHY FOG. RAIN.
.SUN NIGHT...SE WIND 45 KT BECOMING W 25 KT. SEAS 9 TO 17 FT. PATCHY
FOG. 
.MON...SW WIND 20 KT. SEAS 10 FT. 
.MON NIGHT...SW WIND 25 KT. SEAS 7 FT. 
.TUE...S WIND 25 KT. SEAS 8 FT. 
.WED...SE WIND 35 KT. SEAS 10 FT. 
.THU...E WIND 30 KT. SEAS 11 FT.  
$$

PKZ414-121200-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SAT SEP 11 2010

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

.TONIGHT...SE WIND INCREASING TO 15 TO 30 KT AFTER MIDNIGHT. SEAS
7 FT. PATCHY FOG. 
.SUN...SE WIND 20 TO 35 KT INCREASING TO 25 TO 45 KT. SEAS 5 TO 14
FT. STRONGEST WINDS AND HIGHEST SEAS W OF 169W. PATCHY FOG. 
.SUN NIGHT...SE WIND 25 TO 45 KT. SEAS 7 TO 17 FT. STRONGEST WINDS
AND HIGHEST SEAS W OF 167W. PATCHY FOG. RAIN.
.MON...S WIND 40 KT. SEAS 15 FT. 
.MON NIGHT...S WIND 30 KT. SEAS 11 FT. 
.TUE...S WIND 25 KT. SEAS 8 FT. 
.WED AND THU...SE WIND 30 KT. SEAS 9 FT. 
$$

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Sep 11, 4:47 AM AKDT, 11 hours 13 minutes earlier.

AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
500 AM AKDT FRI SEP 10 2010

.ANALYSIS AND UPPER LEVELS...

UPPER LEVEL RIDGE EXTENDS FROM THE EASTERN ALEUTIANS TO BARTER ISLAND
THIS MORNING WITH CLOSED LOWS NEAR THE QUEEN CHARLOTTE ISLANDS AND
JUST EAST OF THE KAMCHATKA PENINSULA. AT THE SURFACE...HIGH PRESSURE
IS OVER MOST OF THE BERING AND THE SOUTHERN MAINLAND. CLOUD DEBRIS
FROM A DECAYED WEATHER FRONT IS OVER SOUTHWEST AK AND REMNANTS OF
MOISTURE WRAPPING AROUND THE QUEEN CHARLOTTE ISLANDS UPPER LOW IS
TAKING THE FORM OF CLOUDS MAINLY OVER THE WRANGELL MOUNTAINS.

.MODEL DISCUSSION...

MODELS ARE IN FAIR AGREEMENT OVER THE NEXT FEW DAYS. A FAST MOVING
NORTH PACIFIC LOW WILL RACE ACROSS THE WESTERN ALEUTIANS THIS EVENING
AND REACH EASTERN RUSSIA SUNDAY EVENING. AN ASSOCIATED WEATHER FRONT
WILL AFFECT THE CENTRAL ALEUTIANS THIS AFTERNOON AND REACH THE WEST
COAST MON EVENING BEFORE DISSIPATING TUE MORNING. A SECOND LOW WILL
APPROACH THE ALEUTIANS BY MIDWEEK AND TRACK ALONG THE CHAIN.
MEANWHILE MOST OF THE MAINLAND AND GULF WILL BE UNDER HIGH PRESSURE
AT LEAST THROUGH MIDWEEK. THE FORECAST DEPENDS UPON THE GFS UNTIL
EARLY NEXT WEEK WHEN THE BLEND IS THE EC AND HPC GUIDANCE.

.SHORT TERM FORECAST...

IN THE WEST...THE NORTH PACIFIC LOW AND FRONT WILL BRING RAIN AND
STORM FORCE WINDS TO THE CENTRAL ALEUTIANS TONIGHT AND SUN. WIND AND
RAIN WILL DIMINISH AS THE FRONT MOVES TO THE EASTERN ALEUTIANS SUN
AND THE WEST COAST OF AK ON MON. BEHIND THE FRONT HIGH PRESSURE...
WITH FOG AND DRY CONDITIONS...BUILDS INTO THE ALEUTIANS INTO TUE. THE
NEXT NORTHERN PACIFIC LOW ARRIVES JUST SOUTH OF THE CHAIN TUE NIGHT
WITH ANOTHER ROUND OF RAIN AND GALES LASTING THROUGH MIDWEEK.

FOR SOUTHWEST AK...DRY CONDITIONS BENEATH HIGH PRESSURE WILL CONTINUE
THROUGH MON WHEN THE DECAYING FRONT BRINGS RAIN AND MODERATE WIND
THAT DISSIPATE LATE TUE. HIGH PRESSURE THEN DRIES OUT THE REGION
THROUGH MIDWEEK.

SOUTH AND EAST OF THE AK RANGE...DRY CONDITIONS WILL PERSIST THROUGH
MIDWEEK.

.LONG TERM FORECAST...
RAIN AND WIND DIMINISH ALONG THE ALEUTIANS BY THE END OF THE
WEEK...WHILE HIGH PRESSURE KEEPS MAINLAND AK DRY INTO THE WEEKEND.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...GALES 170 179 STORMS 172 175 185
FIRE WEATHER...NONE

DS SEP 10

Storm Warnings in Alaska, 2010Every storm warning in 2010

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.