Alert archive / Alaska / Storm Warnings in 2009

Storm Warning 82, NWS Anchorage, AK

March 3, 2009

NWS Anchorage, AK issued this storm warning at Mar 3, 2009, 4:00 AM AKST. It was in force for 48 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 3, 2009, 4:00 AM AKST (13:00 UTC)
Expired
Mar 5, 2009, 4:00 AM AKST
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted, in the capitals the NWS used until 2016.

000 
FZAK62 PAFC 031220
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST TUE MAR 3 2009

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.

PKZ499-040300-
400 AM AKST TUE MAR 3 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A NORTH PACIFIC LOW MOVES TO NEAR 51N 179E AT 971 MB TUE NIGHT AND
THEN MOVES TO NEAR 58N 177W AT 974 MB WED AFTERNOON. THIS LOW THEN
MOVES TO NEAR 62N 172W AT 976 MB WED NIGHT.

$$

PKZ411-040300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKST TUE MAR 3 2009

...STORM WARNING WEDNESDAY...

.TODAY...N WIND 25 KT BECOMING NE 40 KT IN THE AFTERNOON. SEAS
BUILDING TO 15 FT. SNOW. FREEZING SPRAY. 
.TONIGHT...NE WIND 45 KT. SEAS 16 FT. SNOW. FREEZING SPRAY.
.WED...N WIND 50 KT BECOMING NW 40 KT IN THE AFTERNOON. SEAS 18 FT.
SNOW. FREEZING SPRAY. 
.WED NIGHT AND THU...W WIND 35 KT. SEAS 17 FT. 
.FRI...W WIND 25 KT. SEAS 13 FT. 
.SAT...N WIND 15 KT. SEAS 10 FT.  

$$

PKZ412-040300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKST TUE MAR 3 2009

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...W WIND 20 KT BECOMING E 30 KT IN THE AFTERNOON. SEAS 14 FT.
SNOW. FREEZING SPRAY. 
.TONIGHT...E WIND 35 KT. SEAS 16 FT. SNOW AND RAIN. FREEZING SPRAY IN
THE EVENING. 
.WED...S WIND 40 KT. SEAS 17 FT. SNOW AND RAIN. 
.WED NIGHT AND THU...W WIND 40 KT. SEAS 18 FT. 
.FRI...W WIND 30 KT. SEAS 16 FT. 
.SAT...NE WIND 15 KT. SEAS 11 FT.  

$$

PKZ413-040300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKST TUE MAR 3 2009

...STORM WARNING WEDNESDAY...

.TODAY...NE WIND 25 KT BECOMING E 40 KT IN THE AFTERNOON. SEAS
BUILDING TO 14 FT. SNOW AND RAIN. 
.TONIGHT...S WIND 35 KT. SEAS 13 FT. RAIN. 
.WED...S WIND 40 KT BECOMING SW 50 KT IN THE AFTERNOON. SEAS 19 FT.
SNOW AND RAIN. 
.WED NIGHT...W WIND 40 KT. SEAS 18 FT. 
.THU...SW WIND 40 KT. SEAS 20 FT. 
.FRI...W WIND 35 KT. SEAS 17 FT. 
.SAT...NE WIND 15 KT. SEAS 11 FT.  

$$

PKZ414-040300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKST TUE MAR 3 2009

...GALE WARNING WEDNESDAY...

.TODAY...N WIND 20 KT BECOMING E 25 KT IN THE AFTERNOON. SEAS IN ICE
FREE WATERS 9 FT. 
.TONIGHT...SE WIND 30 KT. SEAS IN ICE FREE WATERS 10 FT. RAIN AND
SNOW.
.WED...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS BUILDING TO 17 FT. RAIN.
.WED NIGHT...SW WIND 45 KT. SEAS IN ICE FREE WATERS 21 FT. 
.THU...W WIND 40 KT. SEAS IN ICE FREE WATERS 21 FT. 
.FRI...SW WIND 40 KT. SEAS IN ICE FREE WATERS 21 FT. 
.SAT...SE WIND 20 KT. SEAS IN ICE FREE WATERS 13 FT.  

$$
4 follow-up statements
367 
FZAK62 PAFC 032335
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST TUE MAR 3 2009

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.

PKZ499-041500-
400 PM AKST TUE MAR 3 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 975 MB LOW NEAR 46N 174E WILL MOVE TO 58N 177W WED AFTERNOON. 
THIS LOW WILL THEN WEAKEN TO 980 MB AS IT MOVES TO 65N 167W THU
AFTERNOON.
$$

PKZ411-041500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKST TUE MAR 3 2009

...STORM WARNING WEDNESDAY...

.TONIGHT...NE WIND 30 KT...INCREASING TO 45 KT AFTER MIDNIGHT. SEAS
BUILDING TO 14 FT. SNOW. FREEZING SPRAY.
.WED...N WIND 50 KT BECOMING NW 40 KT IN THE AFTERNOON. SEAS 18 FT.
SNOW. FREEZING SPRAY. 
.WED NIGHT...NW WIND 40 KT. SEAS 19 FT. FREEZING SPRAY. 
.THU...W WIND 35 KT. SEAS 16 FT. 
.THU NIGHT...W WIND 25 KT. SEAS 13 FT. 
.FRI...NE WIND 35 KT. SEAS 13 FT. 
.SAT AND SUN...N WIND 40 KT. SEAS 18 FT. 

$$

PKZ412-041500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKST TUE MAR 3 2009

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...E WIND 25 KT INCREASING TO 35 KT AFTER MIDNIGHT. SEAS
BUILDING TO 14 FT. SNOW AND RAIN. FREEZING SPRAY. 
.WED...S WIND 40 KT. SEAS 15 FT. SNOW AND RAIN. 
.WED NIGHT...W WIND 45 KT. SEAS 20 FT. SNOW. FREEZING SPRAY. 
.THU AND THU NIGHT...W WIND 40 KT. SEAS 21 FT. 
.FRI...S WIND 25 KT. SEAS 13 FT. 
.SAT...E WIND 40 KT. SEAS 15 FT. 
.SUN...NE WIND 50 KT. SEAS 22 FT.  

$$

PKZ413-041500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKST TUE MAR 3 2009

...STORM WARNING WEDNESDAY...

.TONIGHT...S WIND 35 KT. SEAS 12 FT. RAIN AND SNOW. 
.WED...S WIND 40 KT BECOMING SW 50 KT IN THE AFTERNOON. SEAS BUILDING
TO 19 FT. SNOW AND RAIN. 
.WED NIGHT...W WIND 45 KT. SEAS 20 FT. 
.THU...W WIND 45 KT. SEAS 21 FT. 
.THU NIGHT...SW WIND 35 KT. SEAS 20 FT. 
.FRI...SE WIND 30 KT. SEAS 15 FT. 
.SAT...E WIND 40 KT. SEAS 16 FT. 
.SUN...NW WIND 35 KT. SEAS 16 FT.  

$$

PKZ414-041500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKST TUE MAR 3 2009

...GALE WARNING THROUGH WEDNESDAY NIGHT...

.TONIGHT...E WIND 20 KT INCREASING TO 35 KT AFTER MIDNIGHT. SEAS IN
ICE FREE WATERS 12 FT. RAIN AND SNOW.  
.WED...S WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS 17 FT. RAIN.
.WED NIGHT...S WIND 45 KT. SEAS IN ICE FREE WATERS 21 FT. 
.THU AND THU NIGHT...W WIND 40 KT. SEAS IN ICE FREE WATERS 21 FT. 
.FRI...SW WIND 30 KT. SEAS IN ICE FREE WATERS 13 FT. 
.SAT AND SUN...SE WIND 30 KT. SEAS IN ICE FREE WATERS 13 FT. 

$$
000 
FZAK62 PAFC 041233
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST WED MAR 4 2009

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.

PKZ499-050300-
400 AM AKST WED MAR 4 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 975 MB LOW NEAR 51N 179E MOVES TO NEAR 61N 173W WED NIGHT AT 974
MB. THIS LOW THEN MOVES TO NEAR 65N 168W THU AFTERNOON.

$$

PKZ411-050300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKST WED MAR 4 2009

...STORM WARNING TODAY...

.TODAY...N WIND 50 KT. SEAS 18 FT. SNOW. FREEZING SPRAY. 
.TONIGHT...NW WIND 45 KT. SEAS 19 FT. FREEZING SPRAY. 
.THU...W WIND 35 KT. SEAS 16 FT. FREEZING SPRAY. 
.THU NIGHT...W WIND 25 KT. SEAS 13 FT. 
.FRI...NE WIND 35 KT. SEAS 12 FT. 
.SAT...N WIND 40 KT. SEAS 16 FT. 
.SUN...N WIND 45 KT. SEAS 18 FT.  

$$

PKZ412-050300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKST WED MAR 4 2009

...GALE WARNING THROUGH THURSDAY...

.TODAY...S WIND 40 KT. SEAS 15 FT. SNOW AND RAIN. 
.TONIGHT...W WIND 45 KT. SEAS 19 FT. SNOW. FREEZING SPRAY. 
.THU...W WIND 45 KT. SEAS 21 FT. FREEZING SPRAY. 
.THU NIGHT...W WIND 40 KT. SEAS 20 FT. 
.FRI...S WIND 25 KT. SEAS 15 FT. 
.SAT...E WIND 40 KT. SEAS 15 FT. 
.SUN...N WIND 40 KT. SEAS 16 FT.  

$$

PKZ413-050300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKST WED MAR 4 2009

...STORM WARNING TODAY...

.TODAY...S WIND 40 KT BECOMING SW 50 KT IN THE AFTERNOON. SEAS
BUILDING TO 18 FT. SNOW SHOWERS. 
.TONIGHT...W WIND 45 KT. SEAS 21 FT. SNOW SHOWERS. 
.THU...W WIND 40 KT. SEAS 22 FT. 
.THU NIGHT...SW WIND 35 KT. SEAS 20 FT. 
.FRI...SE WIND 30 KT. SEAS 15 FT. 
.SAT...E WIND 40 KT. SEAS 16 FT. 
.SUN...NW WIND 35 KT. SEAS 17 FT.  

$$

PKZ414-050300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKST WED MAR 4 2009

...GALE WARNING THROUGH THURSDAY...

.TODAY...S WIND 30 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS IN
ICE FREE WATERS BUILDING TO 16 FT. RAIN.
.TONIGHT...S WIND 45 KT. SEAS IN ICE FREE WATERS 20 FT. 
.THU...W WIND 40 KT. SEAS IN ICE FREE WATERS 21 FT. 
.THU NIGHT...W WIND 40 KT. SEAS IN ICE FREE WATERS 22 FT. 
.FRI...SW WIND 30 KT. SEAS IN ICE FREE WATERS 18 FT. 
.SAT...SE WIND 35 KT. SEAS IN ICE FREE WATERS 15 FT. 
.SUN...S WIND 35 KT. SEAS IN ICE FREE WATERS 15 FT.  

$$
000 
FZAK62 PAFC 050026
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST WED MAR 4 2009

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.

PKZ499-051500-
400 PM AKST WED MAR 4 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 975 MB LOW 57N 178W WILL MOVE INLAND NEAR KIVALINA THU NIGHT AT 983
MB. A 985 MB LOW 43N 173E THU NIGHT WILL MOVE TO 45N 178E FRI
AFTERNOON.
$$

PKZ411-051500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKST WED MAR 4 2009

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...NW WIND 45 KT. SEAS 19 FT. FREEZING SPRAY. 
.THU...W WIND 40 KT. SEAS 16 FT. SNOW. FREEZING SPRAY. 
.THU NIGHT...W WIND 30 KT DIMINISHING TO 20 KT AFTER MIDNIGHT. SEAS
SUBSIDING TO 10 FT. 
.FRI...NE WIND 35 KT. SEAS 12 FT. 
.FRI NIGHT...NE WIND 50 KT. SEAS 17 FT. 
.SAT...N WIND 50 KT. SEAS 18 FT. 
.SUN...N WIND 45 KT. SEAS 19 FT. 
.MON...NW WIND 40 KT. SEAS 17 FT.  

$$

PKZ412-051500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKST WED MAR 4 2009

...STORM WARNING TONIGHT AND THURSDAY...

.TONIGHT...W WIND 50 KT. SEAS 22 FT. SNOW. FREEZING SPRAY. 
.THU...W WIND 50 KT...DIMINISHING TO 40 KT DURING THE AFTERNOON. SEAS
21 FT. SNOW. FREEZING SPRAY. 
.THU NIGHT...W WIND 35 KT DIMINISHING TO 25 KT AFTER MIDNIGHT. SEAS
SUBSIDING TO 15 FT. SNOW. FREEZING SPRAY. 
.FRI...S WIND 20 KT. SEAS 10 FT. 
.FRI NIGHT...E WIND 35 KT. SEAS 12 FT. 
.SAT...E WIND 40 KT. SEAS 15 FT. 
.SUN...N WIND 40 KT. SEAS 18 FT. 
.MON...NW WIND 35 KT. SEAS 14 FT.  

$$

PKZ413-051500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKST WED MAR 4 2009

...STORM WARNING TONIGHT...

.TONIGHT...W WIND 50 KT. SEAS 21 FT. SNOW SHOWERS. 
.THU...W WIND 45 KT...DIMINISHING TO 35 KT DURING THE AFTERNOON. SEAS
22 FT. 
.THU NIGHT...SW WIND 35 KT. SEAS 19 FT. 
.FRI...SE WIND 40 KT. SEAS 17 FT. 
.FRI NIGHT...SE WIND 45 KT. SEAS 18 FT. 
.SAT...E WIND 40 KT. SEAS 16 FT. 
.SUN...NW WIND 35 KT. SEAS 16 FT. 
.MON...W WIND 30 KT. SEAS 14 FT.  

$$

PKZ414-051500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKST WED MAR 4 2009

...STORM WARNING TONIGHT AND THURSDAY...

.TONIGHT...S WIND 40 KT...BECOMING SW 50 KT AFTER MIDNIGHT. SEAS IN
ICE FREE WATERS 22 FT. 
.THU...W WIND 50 KT...DIMINISHING TO 40 KT DURING THE AFTERNOON. SEAS
IN ICE FREE WATERS 23 FT. 
.THU NIGHT...W WIND 40 KT. SEAS IN ICE FREE WATERS 22 FT. SNOW.
FREEZING SPRAY. 
.FRI...SW WIND 25 KT. SEAS IN ICE FREE WATERS 17 FT. 
.FRI NIGHT AND SAT...SE WIND 40 KT. SEAS IN ICE FREE WATERS 15 FT. 
.SUN...S WIND 35 KT. SEAS IN ICE FREE WATERS 14 FT. 
.MON...SW WIND 25 KT. SEAS IN ICE FREE WATERS 10 FT.  

$$
000 
FZAK62 PAFC 051238
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKST THU MAR 5 2009

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.

PKZ499-060300-
400 AM AKST THU MAR 5 2009
.SYNOPSIS FOR CENTRAL BERING SEA...
A 972 MB LOW NEAR 62N 173W MOVES INLAND NEAR 67N 164W THU NIGHT. A
985 MB LOW NEAR 47N 178E FRI WILL DEVELOP A WEATHER FRONT EXTENDING
INTO THE WESTERN BERING SEA.  

$$

PKZ411-060300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKST THU MAR 5 2009

...GALE WARNING TODAY AND FRIDAY...

.TODAY...W WIND 40 KT. SEAS 15 FT. SNOW. FREEZING SPRAY. 
.TONIGHT...SW WIND 30 KT. SEAS 14 FT. FREEZING SPRAY. 
.FRI...NW WIND 25 KT BECOMING NE 35 KT IN THE AFTERNOON. SEAS 13 FT.
SNOW. FREEZING SPRAY. 
.FRI NIGHT...NE WIND 45 KT. SEAS 18 FT. 
.SAT AND SUN...N WIND 45 KT. SEAS 20 FT. 
.MON...NW WIND 40 KT. SEAS 17 FT.  

$$

PKZ412-060300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKST THU MAR 5 2009

...STORM WARNING TODAY...

.TODAY...W WIND 50 KT. SEAS 22 FT. FREEZING SPRAY. 
.TONIGHT...W WIND 40 KT BECOMING SW 25 KT AFTER MIDNIGHT. SEAS 19 FT.
FREEZING SPRAY. 
.FRI...SW WIND 25 KT. SEAS 14 FT. FREEZING SPRAY. 
.FRI NIGHT...SE WIND 35 KT. SEAS 14 FT. 
.SAT...E WIND 45 KT. SEAS 15 FT. 
.SUN...N WIND 40 KT. SEAS 18 FT. 
.MON...NW WIND 35 KT. SEAS 16 FT.  

$$

PKZ413-060300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKST THU MAR 5 2009

...GALE WARNING THROUGH FRIDAY...

.TODAY...W WIND 45 KT. SEAS 22 FT. 
.TONIGHT...SW WIND 40 KT BECOMING S 25 KT AFTER MIDNIGHT. SEAS 18 FT.

.FRI...SE WIND 30 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS 17
FT. 
.FRI NIGHT...SE WIND 45 KT. SEAS 19 FT. 
.SAT...E WIND 40 KT. SEAS 17 FT. 
.SUN...NW WIND 35 KT. SEAS 16 FT. 
.MON...NW WIND 30 KT. SEAS 16 FT.  

$$

PKZ414-060300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKST THU MAR 5 2009

...STORM WARNING TODAY...

.TODAY...W WIND 50 KT. SEAS 22 FT. 
.TONIGHT...W WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS 22
FT. 
.FRI...S WIND 30 KT. SEAS 17 FT. 
.FRI NIGHT...SE WIND 40 KT. SEAS 19 FT. 
.SAT...SE WIND 45 KT. SEAS 20 FT. 
.SUN...S WIND 40 KT. SEAS 18 FT. 
.MON...SW WIND 25 KT. SEAS 15 FT.  

$$

What forecasters said that day

The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Mar 2, 2:10 PM AKST, 13 hours 50 minutes earlier.

Area forecast discussion, Mar 2, 2:10 PM AKST, 13 hours 50 minutes before
AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
210 PM AKST MON MAR 2 2009

.ANALYSIS AND UPPER LEVELS...
THE LONG WAVE PATTERN REMAINS RELATIVELY UNCHANGED WITH AN ANCHOR
UPPER LOW POSITIONED OVER EASTERN SIBERIA. A HIGH AMPLITUDE UPPER
LEVEL RIDGE IS IN PLACE OVER THE EASTERN BERING SEA AND SOUTHWEST
ALASKA MAINLAND. AN ACTIVE SOUTHWESTERLY JET FLOWING BETWEEN THE TWO
FEATURES IS SERVING AS THE FOCAL POINT FOR CYCLOGENESIS NEAR THE
CENTRAL ALEUTIANS.

AT THE SURFACE...PRESSURE GRADIENT THIS MORNING REMAINS STRONG ALONG
THE COASTAL MOUNTAINS IN SOUTHCENTRAL ALASKA. THIS IS WEAKENING AS
THE BROAD AREA OF LOW PRESSURE OVER THE NORTHEASTERN GULF MOVES
SOUTHEAST INTO THE PANHANDLE. WINDS WILL CONTINUE TO DIMINISH
TODAY AS A RESULT OF THE WEAKENING GRADIENT. HIGH PRESSURE IS
RESPONSIBLE FOR THE CLEAR SKIES ACROSS THE REGION BUT WILL QUICKLY
GIVE WAY TO HIGH CLOUDS AS THE BAROCLINIC LEAF FROM A DEVELOPING LOW
OUT WEST CROSSES THE ALASKA PENINSULA TONIGHT.

.MODEL DISCUSSION...MODELS CONTINUE TO DO A FAIRLY GOOD JOB HANDLING
ALL MAJOR FEATURES. ONE AREA OF CONTENTION IS A WEAK LOW PRESSURE
SYSTEM AND ASSOCIATED UPPER LEVEL TROUGH MOVING ACROSS THE EASTERN
ALEUTIANS THIS AFTERNOON. THE GFS IS SLIGHTLY STRONGER THAN THE NAM
WHICH APPEARS TO BE THE CASE BASED ON SATELLITE AND SURFACE
OBSERVATIONS. WILL BE INCREASING THE CHANCE OF SNOW ACROSS
SOUTHCENTRAL WITH THIS SYSTEM TUESDAY BASED ON THESE LATEST TRENDS.
STILL PREFER THE GFS/ECMWF SOLUTION WITH THE DEVELOPING LOW MID WEEK
BUT ALTOGETHER NO MAJOR CHANGES ARE IN STORE FOR THE UPCOMING
FORECAST PACKAGE.

.SHORT TERM FORECAST...

SOUTHCENTRAL ALASKA...THE BAROCLINIC LEAF ASSOCIATED WITH THE
AFOREMENTIONED WEAK LOW PRESSURE SYSTEM WILL BE SPREADING ACROSS
SOUTHCENTRAL THIS EVENING. LATEST THINKING IS THAT
PRECIPITATION...WHILE LIGHT...IS NOW LIKELY WITH THIS SYSTEM.
ISENTROPIC LIFT MAXES OUT AT 18Z WITH SUFFICIENT PRESSURE ADVECTION
FROM THE SURFACE UP TO 290K OR SO. ONE INGREDIENT THAT MAY BE LACKING
WILL BE MOISTURE. THINKING THAT IT MAY TAKE A WHILE TO SATURATE THE
ATMOSPHERE...SO AT THIS TIME WILL BE BUMPING UP PROBABILITY OF
PRECIPITATION BUT KEEPING ACCUMULATION LESS THAN 1 INCH.

THE SYSTEM QUICKLY EXITS THE REGION TUESDAY NIGHT AND CLEAR SKIES
AGAIN PREVAIL BY WEDNESDAY MORNING. THE ACTIVE PATTERN WILL BRING THE
AFFECTS OF THE NEXT SYSTEM INTO SOUTHCENTRAL BY WEDNESDAY
NIGHT. SOUTHWESTERLY FLOW ALOFT AND AN IMPRESSIVE FETCH OF MOISTURE
WILL LEAD TO A GOOD CHANCE OF MORE SUBSTANTIAL SNOW
ACCUMULATION...ESPECIALLY OVER THE SUSITNA VALLEY. WILL HAVE TO WATCH
AS THIS DEVELOPS THE NEXT 48 HOURS.

SOUTHWEST ALASKA...SNOW WILL SPREAD INLAND THIS EVENING ASSOCIATED
WITH THE FIRST AREA OF LOW PRESSURE. THE SPEED OF THE SYSTEM WILL
HELP KEEP SNOW TOTALS RELATIVELY LIGHT. WARM AIR ON THE SOUTH SIDE OF
THE SYSTEM WILL KEEP PRECIPITATION TYPE RAIN ALONG THE ALASKA
PENINSULA AND EASTERN ALEUTIANS. HIGH PRESSURE QUICKLY BUILDS IN LATE
TONIGHT. THE NEXT OCCLUDED FRONT WILL BRING RAIN AND SNOW BACK TO THE
SOUTHWEST COAST TUESDAY NIGHT WITH SHOWERS PERSISTING THROUGH LATE
WEEK AS THE MAIN LOW MOVES NORTH TOWARD THE SEWARD PENINSULA.

BERING SEA ALEUTIANS....RELATIVELY BENIGN WEATHER...BY BERING SEA
STANDARDS...WILL PERSIST THROUGH TONIGHT WHEN THE NEXT NORTH PACIFIC
LOW DEVELOPS SOUTH OF THE WESTERN ALEUTIANS. THE NEXT STORM WILL
SPREAD GALES AND MINIMUM STORM FORCE WINDS ACROSS MOST OF THE BERING
SEA THROUGH LATE IN THE WEEK. WARM AIR SOUTH AND EAST OF THE LOW WILL
KEEP PRECIP TYPE ALL RAIN FOR MOST OF THE AREA...THE EXCEPTION WILL
BE THE WESTERN ALEUTIANS TUESDAY NIGHT WHEN COLD AIR BEGINS TO ADVECT
SOUTHWARD ON THE BACK SIDE OF THE LOW. WILL BE MENTIONING STRONGER
WINDS AND THE POSSIBILITY OF BLIZZARD CONDITIONS BUT WILL HOLD OFF ON
A WATCH OR WARNING FOR NOW.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE WARNING...170 172 175 176.
FIRE WEATHER...NONE.

AB MAR 09

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 2, 4:00 PM AKSTGale WarningAFC48 hr
Mar 2, 4:00 PM AKSTGale WarningAFC48 hr
Mar 2, 4:00 PM AKSTSmall Craft AdvisoryAFC12 hr
Mar 2, 4:00 PM AKSTSmall Craft AdvisoryAFC60 hr
Mar 2, 4:00 PM AKSTStorm WarningAFC48 hr
Mar 2, 4:00 PM AKSTHeavy Freezing Spray WarningAFC24 hr
Mar 3, 4:00 AM AKSTGale WarningAFC5 days
Mar 3, 4:00 AM AKSTStorm WarningAFC36 hr
Mar 3, 4:39 AM AKSTFreezing Rain AdvisoryAFC4 hr
Mar 3, 4:54 AM AKSTBlizzard WatchAFC7 hr
Mar 3, 4:54 AM AKSTWinter Storm WatchAFC11 hr
Mar 3, 9:49 AM AKSTFreezing Rain AdvisoryAFC2 hr
Mar 3, 12:22 PM AKSTBlizzard WarningAFC23 hr

Nearby

Storm Warnings in Alaska, 2009Every storm warning in 2009

Sources

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