Alert archive / Alaska / Blizzard Warnings in 2011

Blizzard Warning 23, NWS Anchorage, AK

April 11, 2011

NWS Anchorage, AK issued this blizzard warning at Apr 11, 2011, 3:54 PM AKDT. It took effect at Apr 11, 2011, 11:00 PM AKDT. It was in force for 5 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
Apr 11, 2011, 3:54 PM AKDT (23:54 UTC)
In effect from
Apr 11, 2011, 11:00 PM AKDT
Expired
Apr 12, 2011, 3:57 AM AKDT
In force
5 hr
Issued by
NWS Anchorage, AK

The text

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

383 
WWAK42 PAFC 112354
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
354 PM AKDT MON APR 11 2011

AKZ181-121600-
/X.UPG.PAFC.BZ.A.0010.110412T0800Z-110412T1700Z/
/X.NEW.PAFC.BZ.W.0023.110412T0700Z-110412T1600Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
354 PM AKDT MON APR 11 2011

...BLIZZARD WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
AKDT TUESDAY FOR THE BERING SIDE...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 8 AM AKDT
TUESDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. 

STEADY ONSHORE FLOW AND A BRISK AIRMASS IS YIELDING SNOW SHOWERS
AND BLOWING SNOW ALONG THE ALASKA PENINSULA. A WEAK AREA OF LOW
PRESSURE NEARING THE PRIBILOF ISLANDS WILL MOVE MOVE RAPIDLY SOUTHEAST
TOWARDS THE REGION TONIGHT. THIS FEATURE LOOKS TO ENHANCE THE
PRECIPITATION AND BRING A STEADIER REDUCED VISIBILITY.

ALONG THE BERING SIDE...NORTHWEST WINDS OF 35 TO 45 MPH COUPLED
WITH HEAVIER SNOW SHOWERS WILL REDUCE VISIBILITY TO NEAR ZERO. THE
LOW PRESSURE SYSTEM WILL ROTATE AWAY FROM THE ALASKA PENINSULA
TUESDAY MORNING...ALLOWING PRECIPITATION INTENSITY TO WEAKEN AND
VISIBILITY TO IMPROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITE-OUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. ALL TRAVEL AND
OUTDOOR ACTIVITY IS STRONGLY DISCOURAGED.

&&

$$

JAM
2 follow-up statements
912 
WWAK42 PAFC 120005 CCA
WSWALU

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
404 PM AKDT MON APR 11 2011

AKZ181-121600-
/X.UPG.PAFC.BZ.A.0010.110412T0800Z-110412T1700Z/
/X.COR.PAFC.BZ.W.0023.110412T0700Z-110412T1600Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
404 PM AKDT MON APR 11 2011

...BLIZZARD WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
AKDT TUESDAY FOR THE BERING SIDE...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 8 AM AKDT
TUESDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. 

STEADY ONSHORE FLOW AND A BRISK AIRMASS IS YIELDING SNOW SHOWERS
AND BLOWING SNOW ALONG THE ALASKA PENINSULA. A WEAK AREA OF LOW
PRESSURE NEARING THE PRIBILOF ISLANDS WILL MOVE RAPIDLY SOUTHEAST
TOWARDS THE REGION TONIGHT. THIS FEATURE LOOKS TO ENHANCE THE
PRECIPITATION AND BRING A STEADIER REDUCED VISIBILITY.

ALONG THE BERING SIDE...NORTHWEST WINDS OF 35 TO 45 MPH COUPLED
WITH HEAVIER SNOW SHOWERS WILL REDUCE VISIBILITY TO NEAR ZERO. THE
LOW PRESSURE SYSTEM WILL ROTATE AWAY FROM THE ALASKA PENINSULA
TUESDAY MORNING...ALLOWING PRECIPITATION INTENSITY TO WEAKEN AND
VISIBILITY TO IMPROVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING MEANS SEVERE WINTER WEATHER CONDITIONS ARE
EXPECTED OR OCCURRING. FALLING AND BLOWING SNOW WITH STRONG WINDS
AND POOR VISIBILITIES ARE LIKELY. THIS WILL LEAD TO WHITE-OUT
CONDITIONS...MAKING TRAVEL EXTREMELY DANGEROUS. ALL TRAVEL AND
OUTDOOR ACTIVITY IS STRONGLY DISCOURAGED.

&&

$$

JAM
894 
WWAK42 PAFC 121157
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
357 AM AKDT TUE APR 12 2011

AKZ181-121300-
/X.CAN.PAFC.BZ.W.0023.000000T0000Z-110412T1600Z/
ALASKA PENINSULA-
INCLUDING THE CITIES OF...COLD BAY...SAND POINT
357 AM AKDT TUE APR 12 2011

...BLIZZARD WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE
BLIZZARD WARNING. 

THE HEAVY SNOW HAS ENDED ACROSS THE ALASKA PENINSULA...AND
VISIBILITIES HAVE IMPROVED TO ONE MILE OR GREATER. THEREFORE...THE
BLIZZARD WARNING IS CANCELLED. LIGHT SNOW WILL CONTINUE THROUGH
THE DAY...AND VISIBILITIES MAY BE REDUCED TO ONE MILE AT TIMES.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 4:00 PM AKDTGale WarningAFC12 hr
Apr 10, 4:00 PM AKDTGale WarningAFC60 hr
Apr 10, 4:00 PM AKDTSmall Craft AdvisoryAFC48 hr
Apr 10, 4:00 PM AKDTSmall Craft AdvisoryAFC24 hr
Apr 10, 4:00 PM AKDTHeavy Freezing Spray WarningAFC48 hr
Apr 10, 6:52 PM AKDTWinter Weather AdvisoryAFC10 hr
Apr 11, 4:00 AM AKDTSmall Craft AdvisoryAFC4 days
Apr 11, 4:00 AM AKDTHeavy Freezing Spray WarningAFC36 hr
Apr 11, 9:44 AM AKDTWinter Weather AdvisoryAFC14 hr
Apr 11, 11:24 AM AKDTBlizzard WatchAFC5 hr
Apr 11, 11:32 AM AKDTGale WarningAFC16 hr

Nearby

Blizzard Warnings in Alaska, 2011Every blizzard warning in 2011

Sources

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