Blizzard Warning 23, NWS Anchorage, AK

174 
WWAK41 PAFC 032057 CCA
WSWAER

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
1255 PM AKDT WED NOV 3 2010

CORRECTED WORDING FOR ZONE 141 ADVISORY

AKZ131-041015-
/X.NEW.PAFC.BZ.W.0023.101104T0000Z-101104T1800Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
1255 PM AKDT WED NOV 3 2010

...BLIZZARD WARNING IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM
AKDT THURSDAY THROUGH THOMPSON PASS...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM
AKDT THURSDAY. 

A POWERFUL LOW IN THE GULF OF ALASKA WILL MOVE TO THE KENAI
PENINSULA TONIGHT...PUSHING A STRONG FRONT ONSHORE ACROSS PRINCE
WILLIAM SOUND. STEADY SNOW WILL DEVELOP OUT AHEAD OF THE FRONT
EARLY THIS AFTERNOON AND INTENSIFY BY LATE AFTERNOON. SNOW WILL
MIX WITH OR CHANGE TO RAIN IN VALDEZ THIS EVENING AS WARMER AIR
MOVES IN...BUT WILL REMAIN ALL SNOW THROUGH THE PASS.
MEANWHILE...NORTHEAST WINDS WILL INCREASE TO 30 TO 45 MPH THROUGH
THE PASS BY LATE THIS AFTERNOON AND THEN SHIFT TO EAST 40 TO 55
MPH AS THE FRONT MOVES THROUGH OVERNIGHT. THE COMBINATION OF
SNOW...WHICH WILL BE HEAVY AT TIMES...WITH THE STRONG WINDS WILL
PRODUCE NEAR WHITE-OUT CONDITIONS AT TIMES THROUGH THOMPSON PASS.
CONDITIONS WILL BEGIN TO IMPROVE THURSDAY MORNING AS WINDS
DIMINISH. TEMPERATURES MAY ALSO WARM TO ABOVE FREEZING DURING THE
DAY THURSDAY...WHICH COULD RESULT IN RAIN MIXING IN WITH THE SNOW.
TOTAL SNOW ACCUMULATION FOR THOMPSON PASS FROM THIS AFTERNOON
THROUGH THURSDAY MORNING IS EXPECTED TO RANGE FROM 18 TO 24 INCHES.

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.

&&

$$

AKZ141-041015-
/X.COR.PAFC.WW.Y.0019.101104T0000Z-101104T1800Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
1255 PM AKDT WED NOV 3 2010

...WINTER WEATHER ADVISORY FOR SNOW IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM AKDT THURSDAY FOR AREAS SOUTH AND WEST OF
GLENNALLEN...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM AKDT THURSDAY.

A POWERFUL LOW IN THE GULF OF ALASKA WILL MOVE TO THE KENAI
PENINSULA TONIGHT AND THEN INLAND ON THURSDAY...PUSHING A STRONG
FRONT INLAND ACROSS THE COPPER RIVER BASIN. WIDESPREAD SNOW WILL
DEVELOP ACROSS THE COPPER RIVER BASIN BY LATE THIS AFTERNOON.
AS THE FRONT MOVES INLAND OVERNIGHT PRECIPITATION WILL TAPER OFF
FROM GLENNALLEN NORTH AND EASTWARD. WARMER AIR MAY ALSO CAUSE
PRECIPITATION TO CHANGE TO RAIN FROM CHITINA TO MCCARTHY BEFORE IT
COMES TO AN END. MEANWHILE...FOR AREAS SOUTH OF GLENNALLEN HEADING
TOWARD THOMPSON PASS AS WELL AS WEST OF GLENNALLEN TOWARD EUREKA
SNOW WILL CONTINUE THROUGH THURSDAY MORNING. TOTAL SNOW
ACCUMULATION OF 6 TO 12 INCHES IS EXPECTED FOR THESE AREA. EAST
WINDS GUSTING TO 30 MPH WILL ALSO DEVELOP ALONG THE GLENN HIGHWAY
AROUND EUREKA LATE TONIGHT INTO THURSDAY MORNING WHICH WILL CAUSE
LOCALIZED AREAS OF BLOWING SNOW. VISIBILITIES WILL BE REDUCED TO
ONE HALF MILE AT TIMES IN THE BLOWING SNOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

637 
WWAK41 PAFC 040926
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
126 AM AKDT THU NOV 4 2010

AKZ131-041800-
/X.CON.PAFC.BZ.W.0023.000000T0000Z-101104T1800Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
126 AM AKDT THU NOV 4 2010

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 10 AM AKDT THIS
MORNING THROUGH THOMPSON PASS...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 10 AM AKDT THIS
MORNING. 

A POWERFUL LOW IS APPROACHING THE KENAI PENINSULA EARLY THIS
MORNING. STRONG WINDS AND VERY HEAVY SNOW DEVELOPED THROUGH
THOMPSON PASS LAST EVENING AND WILL CONTINUE THROUGH THE MORNING
HOURS OF THURSDAY. EAST WINDS OF 40 TO 55 MPH WILL CONTINUE
THROUGH THE EARLY MORNING HOURS. THIS WIND WILL COMBINE WITH
CONTINUED HEAVY SNOWFALL TO PRODUCE WIDESPREAD VISIBILITIES BELOW ONE
QUARTER MILE THROUGH MID-MORNING. CONDITIONS WILL BEGIN TO IMPROVE
THURSDAY MORNING AS WINDS DIMINISH. TEMPERATURES MAY ALSO WARM TO
ABOVE FREEZING DURING THE DAY THURSDAY...WHICH COULD RESULT IN
RAIN MIXING IN WITH THE SNOW. TOTAL SNOW ACCUMULATION FOR THOMPSON
PASS FROM THIS STORM IS EXPECTED TO RANGE FROM 18 TO 24 INCHES.

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.

&&

$$

AKZ141-041800-
/X.CON.PAFC.WW.Y.0019.000000T0000Z-101104T1800Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
126 AM AKDT THU NOV 4 2010

...WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 10 AM
AKDT THIS MORNING FOR AREAS SOUTH AND WEST OF GLENNALLEN...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 10 AM
AKDT THIS MORNING.

A POWERFUL LOW PRESSURE SYSTEM APPROACHING SOUTHCENTRAL ALASKA
THIS MORNING HAS PRODUCED WIDESPREAD HEAVY SNOWS ACROSS SOUTHERN
PORTIONS OF THE COPPER RIVER VALLEY. EXPECT SNOWFALL TO CONTINUE
THROUGH MID MORNING...WITH TOTAL SNOW ACCUMULATIONS RANGING FROM 6
TO 12 INCHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

828 
WWAK41 PAFC 041310
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
510 AM AKDT THU NOV 4 2010

AKZ131-041415-
/X.CAN.PAFC.BZ.W.0023.000000T0000Z-101104T1800Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
510 AM AKDT THU NOV 4 2010

...BLIZZARD WARNING IS CANCELED...

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

$$

AKZ141-041800-
/X.CON.PAFC.WW.Y.0019.000000T0000Z-101104T1800Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
510 AM AKDT THU NOV 4 2010

...WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 10 AM
AKDT THIS MORNING FOR AREAS SOUTH AND WEST OF GLENNALLEN...

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 10 AM
AKDT THIS MORNING FOR AREAS SOUTH AND WEST OF GLENNALLEN.

A POWERFUL LOW PRESSURE SYSTEM MOVING INLAND IN SOUTH CENTRAL ALASKA
THIS MORNING HAS PRODUCED WIDESPREAD HEAVY SNOWS ACROSS SOUTHERN
PORTIONS OF THE COPPER RIVER BASIN. EXPECT SNOWFALL TO CONTINUE
THROUGH MID MORNING...WITH TOTAL SNOW ACCUMULATIONS RANGING FROM
6 TO 12 INCHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
350 AM AKDT WED NOV 3 2010

.MODEL DISCUSSION...GFS NAM AND ECMWF ALL IN GOOD AGREEMENT ON
POSITION AND STRENGTH OF GULF LOW THAT MOVES ON A NORTH-NORTHWEST
TRAJECTORY TOWARD THE KENAI PENINSULA OVER THE NEXT 36 HOURS.

.ANALYSIS AND UPPER LEVELS...A LOW NORTHWEST OF ATTU REMAINS NEARLY
STATIONARY OVER THE NEXT 30 HOURS AND THEN DISSIPATES. A WEAK LOW
OVER BRISTOL BAY  DISSIPATES LATE WEDNESDAY MORNING. A HIGH AMPLITUDE
RIDGE OVER WESTERN CANADA BUILDS WEDNESDAY AND STEERS GULF STORM
TOWARD THE NORTHWEST.

.SHORT TERM FORECAST...
ALEUTIANS...CONTINUED SCATTERED SHOWERS AS SECONDARY LOW FORMS
WEDNESDAY EVENING OVER WESTERN ALEUTIANS AND THEN MOVES EASTWARD
ALONG THE CHAIN.
SOUTHWEST...UPPER LEVEL TROUGH OVER THE PERIOD SHOULD PRODUCE
WIDESPREAD CLOUDS AND PRECIP..MAINLY SNOW.
SOUTHCENTRAL...GULF LOW SHOULD BEGIN TO IMPACT LAND AREAS LATE THIS
MORNING WITH MAIN FORCING OCCURRING WEDNESDAY NIGHT. LOOKS AS IF
INITIAL MOISTURE WILL BE IN THE FORM OF RAIN ALTHOUGH SOME FREEZING
RAIN IS POSSIBLE FURTHER INLAND.  SNOW SHOWERS CONTINUING OVER MOST O
OF THE AREA ON THURSDAY AS UPPER LEVEL TROUGH PERSISTS.

.LONG TERM FORECAST...
ALEUTIANS...A FRONT MOVES THROUGH THE WESTERN ALEUTIANS SATURDAY
MORNING WITH A CUT OFF LOW MOVING INTO THE CENTRAL ALEUTIANS SUNDAY
MORNING.
SOUTHWEST...SNOW SHOWERS POSSIBLE ON SATURDAY BUT DRYING ON SUNDAY
AND MONDAY. TEMPERATURES IN TEENS AND SINGLE DIGITS AT NIGHT ONCE
SKIES CLEAR.
SOUTHCENTRAL...SNOW SHOWERS POSSIBLE SATURDAY AND SUNDAY WITH TEMPS
IN UPPER 20S TO LOWER 30S.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HWW 135
MARINE...HURR 120  STORMS 130 132 125  GALES 150 155 160 176 140 141
127
FIRE WEATHER...NONE

JMP NOV 10