Blizzard Watch 6, NWS Anchorage, AK

264 
WWAK42 PAFC 262046
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1146 AM AKST WED JAN 26 2011

AKZ187-271000-
/X.NEW.PAFC.BZ.W.0007.110127T0600Z-110128T0600Z/
CENTRAL ALEUTIANS-
INCLUDING THE CITY OF...ATKA AND ADAK
1146 AM AKST WED JAN 26 2011

...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 PM AKST
THURSDAY FOR ATKA EAST...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 PM AKST
THURSDAY. 

AN INTENSE LOW DEVELOPING SOUTH OF THE ALEUTIANS WILL MOVE NORTH INTO THE
BERING SEA BY THURSDAY EVENING. A POWERFUL FRONT ASSOCIATED WITH
THIS LOW WILL MOVE ACROSS EASTERN PORTIONS OF THE CENTRAL
ALEUTIANS TONIGHT AND INTO THURSDAY. THIS FRONT WILL PRODUCE STRONG
WINDS ALONG WITH SNOW. THIS WILL REDUCE VISIBILITIES TO LESS THAN
ONE QUARTER MILE AT TIMES FOR AREAS AROUND ATKA AND EAST. EXPECT
WINDS TO INCREASE DURING THE EVENING HOURS WITH GUSTS TO 80 MPH
POSSIBLE AFTER MIDNIGHT. STRONG WINDS AND SNOW WILL CONTINUE
THROUGH THE DAY ON THURSDAY AND SHOULD START TO DIMINISH THURSDAY
EVENING AS THE FRONT WEAKENS AND MOVES EAST.

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.

&&

$$

AKZ155-271000-
/X.CON.PAFC.BZ.A.0006.110127T2000Z-110128T0600Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
1146 AM AKST WED JAN 26 2011

...BLIZZARD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

A BLIZZARD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING. 

A DEVELOPING AREA OF LOW PRESSURE SOUTH OF THE CENTRAL ALEUTIAN
CHAIN WILL MOVE NORTH TOWARDS THE EASTERN BERING SEA ON THURSDAY.
WHILE LITTLE SNOWFALL IS EXPECTED WITH THIS SYSTEM...A STRONG
PRESSURE GRADIENT ASSOCIATED WITH THIS LOW WILL DEVELOP ACROSS
THE KUSKOKWIM DELTA...AND PRODUCE STRONG EAST WINDS OF 25 TO
35 MPH INLAND...AND 40 TO 60 MPH ALONG THE COAST. RECENT SNOWFALL
CURRENTLY ON THE GROUND IS EXPECTED TO BE PICKED UP AND BLOWN
AROUND BY THE WINDS...POSSIBLY REDUCING VISIBILITY TO NEAR ZERO
AT TIMES. WITH LITTLE ADDITIONAL SNOWFALL EXPECTED THROUGH THE
DAY THURSDAY...AVAILABLE TRANSPORTABLE SNOW SHOULD DIMINISH...
ALLOWING VISIBILITY TO IMPROVE THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITE-OUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS.

&&

$$

471 
WWAK42 PAFC 270108
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
408 PM AKST WED JAN 26 2011

AKZ187-271415-
/X.CON.PAFC.BZ.W.0007.110127T0600Z-110128T0600Z/
CENTRAL ALEUTIANS-
INCLUDING THE CITY OF...ATKA AND ADAK
408 PM AKST WED JAN 26 2011

...BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
9 PM AKST THURSDAY FOR ATKA EAST...

A BLIZZARD WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
9 PM AKST THURSDAY FOR ATKA EAST. 

AN INTENSE LOW DEVELOPING SOUTH OF THE ALEUTIANS WILL MOVE NORTH
INTO THE BERING SEA BY THURSDAY EVENING. A POWERFUL FRONT
ASSOCIATED WITH THIS LOW WILL MOVE ACROSS EASTERN PORTIONS OF THE
CENTRAL ALEUTIANS TONIGHT AND INTO THURSDAY. THIS FRONT WILL
PRODUCE STRONG WINDS ALONG WITH SNOW. THIS WILL REDUCE
VISIBILITIES TO LESS THAN ONE QUARTER MILE AT TIMES FOR AREAS
AROUND ATKA AND EAST. EXPECT WINDS TO INCREASE DURING THE EVENING
HOURS WITH GUSTS TO 75 MPH POSSIBLE AFTER MIDNIGHT. STRONG WINDS
AND SNOW WILL CONTINUE THROUGH THE DAY ON THURSDAY AND SHOULD
START TO DIMINISH THURSDAY EVENING AS THE FRONT WEAKENS AND MOVES
EAST.

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.

&&

$$

AKZ155-271415-
/X.CON.PAFC.BZ.A.0006.110127T2000Z-110128T0600Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
408 PM AKST WED JAN 26 2011

...BLIZZARD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

A BLIZZARD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING. 

A DEVELOPING AREA OF LOW PRESSURE SOUTH OF THE CENTRAL ALEUTIAN
CHAIN WILL MOVE NORTH TOWARDS THE EASTERN BERING SEA ON THURSDAY.
WHILE LITTLE SNOWFALL IS EXPECTED WITH THIS SYSTEM...A STRONG
PRESSURE GRADIENT ASSOCIATED WITH THIS LOW WILL DEVELOP ACROSS
THE KUSKOKWIM DELTA...AND PRODUCE STRONG EAST WINDS OF 25 TO
45 MPH...STRONGEST ALONG THE COAST. RECENT SNOWFALL CURRENTLY ON THE
GROUND IS EXPECTED TO BE PICKED UP AND BLOWN AROUND BY THE
WINDS...POSSIBLY REDUCING VISIBILITY TO NEAR ZERO AT TIMES. WITH
LITTLE ADDITIONAL SNOWFALL EXPECTED THROUGH THE DAY THURSDAY...AVAILABLE
TRANSPORTABLE SNOW SHOULD DIMINISH... ALLOWING VISIBILITY TO
IMPROVE THURSDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITE-OUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS.

&&

$$

024 
WWAK42 PAFC 271320
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
420 AM AKST THU JAN 27 2011

AKZ155-280100-
/X.UPG.PAFC.BZ.A.0006.110127T2000Z-110128T0600Z/
/X.EXB.PAFC.BZ.W.0007.110127T1400Z-110128T0100Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
420 AM AKST THU JAN 27 2011

...BLIZZARD WARNING IN EFFECT UNTIL 4 PM AKST THIS AFTERNOON FOR
ALONG THE COAST...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL 4 PM AKST THIS AFTERNOON. THE
BLIZZARD WATCH IS NO LONGER IN EFFECT. 

AN AREA OF LOW PRESSURE NEAR THE CENTRAL ALEUTIAN CHAIN WILL MOVE
NORTH INTO THE BERING SEA TODAY. MOISTURE ASSOCIATED WITH THIS
SYSTEM WILL SPREAD LIGHT SNOWFALL TO THE KUSKOKWIM DELTA COAST. IN
ADDITION...A STRONG PRESSURE GRADIENT ASSOCIATED WITH THIS LOW
WILL ALLOW WINDS TO STRENGTHEN ACROSS THE REGION. ALONG COASTAL
AREAS...THE LIGHT SNOWFALL COUPLED WITH EAST WINDS OF 40 TO 50 MPH
WILL PICK UP AND BLOW THE SNOW AROUND...REDUCING VISIBILITY TO
LESS THAN ONE QUARTER MILE AT TIMES. ALTHOUGH WINDS WILL REMAIN
STRONG THROUGH FRIDAY...THE SNOWFALL WILL END AND AVAILABLE
TRANSPORTABLE SNOW WILL DIMINISH THIS AFTERNOON. THIS LOOKS TO
BRING AN END TO THE BLIZZARD THREAT.

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.

&&

$$

AKZ187-280600-
/X.CON.PAFC.BZ.W.0007.000000T0000Z-110128T0600Z/
CENTRAL ALEUTIANS-
INCLUDING THE CITY OF...ATKA AND ADAK
420 AM AKST THU JAN 27 2011

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING...

A BLIZZARD WARNING REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING. 

A POWERFUL FRONT ASSOCIATED WITH A LOW PRESSURE SYSTEM OVER THE
CENTRAL ALEUTIANS CONTINUES TO PRODUCE SNOW AND BLOWING SNOW
ACROSS THE REGION. NORTH WINDS OF 40 TO 50 MPH GUSTING TO 65 MPH
COUPLED WITH FALLING SNOW ARE REDUCING VISIBILITY TO LESS THAN ONE
QUARTER MILE. CONDITIONS LOOK TO IMPROVE THIS EVENING AS THE FRONT
MOVES AWAY AND THE LOW WEAKENS. 

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

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
100 PM AKST TUE JAN 25 2011

.MODEL DISCUSSION...NAM AND GFS IN CONSIDERABLE DISAGREEMENT ON
EASTERN GULF LOW THAT FORMS TONIGHT.  EAST DESK IS GOING TO USE GFS
SOLUTION WHICH PRODUCES A PRONOUNCED CUT-OFF LOW WHICH MOVES ONSHORE
OVER ICY BAY WED LATE MORNING. MODELS ALSO HINTING AT LOW FORMING
JUST SOUTH OF KENAI PEN WED AND THEN MOVING NORTHWARD DURING THE
AFTERNOON.

THE POWERFUL ALEUTIAN STORM THAT THE MODELS HAVE BEEN FORECASTING IS
ON TRACK TO IMPACT THE CENTRAL AND EASTERN ALEUTIANS BEGINNING
MID-DAY TOMORROW.  GFS AND NAM IN GOOD AGREEMENT ON PRESSURE AND
POSITION THROUGH THUR AFTERNOON.  THIS SYSTEM SHOULD BOTTOM OUT
AROUND 955 WITH PLENTY OF STRONG SE WINDS FOR AREAS EAST OF 170W.
ALSO LOOKS AS PRETTY GOOD SOURCE OF COLD AIR ON WESTERN SIDE OF STORM
SO EXPECT SOME STRONG NW WINDS THU MORNING ACROSS CENTRAL BERING AND
CENTRAL ALEUTIANS.

.ANALYSIS AND UPPER LEVELS...AT THE SURFACE THERE IS AN ELONGATED LOW
IN THE NORTHERN BERING THAT MOVES TO THE WEST WED AND THEN MERGES
WITH CENTRAL ALEUTIAN STORM. THE FRONT ASSOCIATED WITH THIS SYSTEM IS
CURRENTLY MOVING THROUGH SOUTHWEST AK. CURRENT NW GULF LOW WILL
CONTINUE TO PRODUCE RAIN ALONG THE COAST AND SNOW SHOWERS INLAND.

.SHORT TERM FORECAST...
BERING REGION...EXPECT STRONG SE WINDS AND RAIN EAST OF 170W STARTING
WED MID-DAY.  WEST DESK MIGHT ISSUE HIGH WIND WARNING FOR SOUTHERN AK
PEN.  AS NOTED ABOVE POTENTIAL FOR SOME STRONG NW IN CENTRAL
ALEUTIANS LATE WED NIGHT THROUGH FRI MORNING. EXPECT SNOW AND BLOWING
SNOW AS WELL.

SOUTHWEST...AS FRONT MOVES NORTHWARD THIS AFTERNOON PRECIP WILL
DECREASE BUT LOW CLOUDS TO FOLLOW. FRONT FROM ALEUTIAN SYSTEM SHOULD
MOVE ONSHORE BEGINNING LATE THU MORNING. LOOKS LIKE SOME POTENT
NORTHEAST TO SOUTHEAST WINDS CAN BE EXPECTED THUR AND FRI. LOOKS AS
IF PRECIP COULD BE MAINLY SNOW...WHICH MEANS POTENTIAL FOR BLIZZARD
CONDITIONS AS WELL.

SOUTHCENTRAL...UNSETTLED WEATHER WITH RAIN ALONG THE COAST AND CHANCE
OF SNOW INLAND THROUGH WED NIGHT.  LOOKS LIKE REMNANT OF FRONT
ASSOCIATED WITH ALEUTIAN STORM WILL MOVE THROUGH COOK INLET BEGINNING
LATE THU NIGHT. LITTLE CONFIDENCE ON DETAILS HOWEVER AS LITTLE
SUPPORT ABOVE THE SURFACE FOR MORE THAN LIGHT PRECIP.

.LONG TERM FORECAST...UPPER LEVEL RIDGE IS STILL FORECASTED TO
DEVELOP OVER THE GULF AND ALASKA ON THU.  THIS WILL STEER ALEUTIANS
SYSTEM TOWARD THE GULF OF ANADYR FRI NIGHT. LOOKS AS IF ANOTHER
PACIFIC STORM MOVES TOWARD EASTERN ALEUTIANS SUN AFTERNOON.  HIGH
PRESSURE FORMS OVER THE GULF SO LITTLE IN THE WAY OF STORMS OVER THE
WEEKEND.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE
MARINE...GALES: 413 160 180 171 175 179 185  STORMS: 155 165 170 172
FIRE WEATHER...NONE

JMP JAN 11