Wind Chill Advisory 3, NWS Anchorage, AK

056 
WWAK42 PAFC 220050
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
350 PM AKST FRI JAN 21 2011

AKZ155-221400-
/X.EXT.PAFC.WC.Y.0003.000000T0000Z-110123T2100Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
350 PM AKST FRI JAN 21 2011

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON AKST SUNDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL NOON AKST SUNDAY. 

NORTH WINDS 15 TO 30 MPH ALONG WITH TEMPERATURES OF ZERO TO
10 BELOW ZERO WILL PRODUCE WIND CHILL TEMPERATURES TO 40 BELOW
ZERO AT TIMES THROUGH SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

723 
WWAK42 PAFC 221316
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
416 AM AKST SAT JAN 22 2011

AKZ155-230230-
/X.CON.PAFC.WC.Y.0003.000000T0000Z-110123T2100Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
416 AM AKST SAT JAN 22 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST SUNDAY. 

NORTH WINDS 15 TO 30 MPH ALONG WITH TEMPERATURES OF ZERO TO
10 BELOW ZERO WILL PRODUCE WIND CHILL TEMPERATURES TO 40 BELOW
ZERO AT TIMES THROUGH SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

AKZ195-230230-
/X.NEW.PAFC.BZ.A.0004.110123T1400Z-110124T0100Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
416 AM AKST SAT JAN 22 2011

...BLIZZARD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON. 

AN APPROACHING FRONT FOR THE SOUTH IS EXPECTED TO BRING NORTHEAST
WINDS 30 TO 45 MPH WITH GUSTS TO 60 MPH ACROSS THE PRIBILOF ISLANDS
BEGINNING LATE TONIGHT ALONG WITH SNOW AND BLOWING SNOW
VISIBILITIES WILL POSSIBLY BE REDUCED TO ONE QUARTER MILE OR LESS
AT TIMES. CONDITIONS SHOULD BEGIN TO IMPROVE LATE SUNDAY AFTERNOON
AS THE SNOW TAPERS OFF.

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.

&&

$$

547 
WWAK42 PAFC 221330 CCA
WSWALU

URGENT - WINTER WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE ANCHORAGE AK
416 AM AKST SAT JAN 22 2011

AKZ155-230230-
/X.CON.PAFC.WC.Y.0003.000000T0000Z-110123T2100Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
416 AM AKST SAT JAN 22 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST SUNDAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST SUNDAY.

NORTH WINDS 15 TO 30 MPH ALONG WITH TEMPERATURES OF ZERO TO
10 BELOW ZERO WILL PRODUCE WIND CHILL TEMPERATURES TO 40 BELOW
ZERO AT TIMES THROUGH SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

AKZ195-230230-
/X.COR.PAFC.BZ.A.0004.110123T1400Z-110124T0100Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
416 AM AKST SAT JAN 22 2011

...BLIZZARD WATCH IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY
AFTERNOON.

AN APPROACHING FRONT FROM THE SOUTH IS EXPECTED TO BRING NORTHEAST
WINDS 30 TO 45 MPH WITH GUSTS TO 60 MPH ACROSS THE PRIBILOF ISLANDS
BEGINNING LATE TONIGHT ALONG WITH SNOW AND BLOWING SNOW
VISIBILITIES WILL POSSIBLY BE REDUCED TO ONE QUARTER MILE OR LESS
AT TIMES. CONDITIONS SHOULD BEGIN TO IMPROVE LATE SUNDAY AFTERNOON
AS THE SNOW TAPERS OFF.

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.

&&

$$

652 
WWAK42 PAFC 230120
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
420 PM AKST SAT JAN 22 2011

AKZ195-231430-
/X.UPG.PAFC.BZ.A.0004.110123T1400Z-110124T0100Z/
/X.NEW.PAFC.BZ.W.0006.110123T0900Z-110124T0600Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
420 PM AKST SAT JAN 22 2011

...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM AKST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM AKST
SUNDAY. THE BLIZZARD WATCH IS NO LONGER IN EFFECT. 

A FRONT APPROACHING FROM THE SOUTH IS EXPECTED TO BRING SNOW ALONG
WITH STRONG WINDS OF 45 TO 60 MPH TO THE PRIBILOF ISLANDS TONIGHT
THROUGH SUNDAY EVENING. LOOK FOR CONDITIONS TO DETERIORATE THIS EVENING
AS THE FRONT MOVES NORTH WITH SNOW SHOWERS GIVING WAY TO STEADY
SNOW AFTER MIDNIGHT. THE COMBINATION OF SNOW AND WIND WILL REDUCE
VISIBILITY TO LESS THAN ONE QUARTER MILE AT TIMES AFTER MIDNIGHT
TONIGHT AND THROUGH THE DAY ON SUNDAY. CONDITIONS SHOULD BEGIN TO
IMPROVE SUNDAY EVENING AS THE FRONT 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.

&&

$$

AKZ155-231430-
/X.EXT.PAFC.WC.Y.0003.000000T0000Z-110124T0000Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
420 PM AKST SAT JAN 22 2011

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 3 PM AKST SUNDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL 3 PM AKST SUNDAY. 

NORTH WINDS 15 TO 30 MPH ALONG WITH TEMPERATURES OF ZERO TO
10 BELOW ZERO WILL PRODUCE WIND CHILL TEMPERATURES TO 40 BELOW
ZERO AT TIMES THROUGH LATE SUNDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

340 
WWAK42 PAFC 230943
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1243 AM AKST SUN JAN 23 2011

AKZ195-240130-
/X.CON.PAFC.BZ.W.0006.000000T0000Z-110124T0600Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
1243 AM AKST SUN JAN 23 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 FRONT APPROACHING FROM THE SOUTH IS CURRENTLY PRODUCING SNOW
ALONG WITH STRONG WINDS OF 45 TO 60 MPH TO THE PRIBILOF ISLANDS.
THE COMBINATION OF SNOW AND WIND WILL REDUCE VISIBILITY TO LESS
THAN ONE QUARTER MILE AT TIMES THROUGH SUNDAY MID EVENING.
CONDITIONS SHOULD BEGIN TO IMPROVE LATE SUNDAY EVENING AS THE
FRONT 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.

&&

$$

AKZ155-240130-
/X.EXT.PAFC.WC.Y.0003.000000T0000Z-110124T2100Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
1243 AM AKST SUN JAN 23 2011

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON AKST MONDAY...

THE WIND CHILL ADVISORY IS NOW IN EFFECT UNTIL NOON AKST MONDAY. 

NORTH WINDS 20 TO 35 MPH ALONG WITH TEMPERATURES OF 5 BELOW TO 20
BELOW ZERO WILL PRODUCE WIND CHILL TEMPERATURES 30 BELOW TO 50
BELOW ZERO AT TIMES THROUGH LATE MONDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.

&&

$$

349 
WWAK42 PAFC 232228
WSWALU

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
128 PM AKST SUN JAN 23 2011

AKZ155-241500-
/X.CAN.PAFC.WC.Y.0003.000000T0000Z-110124T2100Z/
/X.EXB.PAFC.BZ.W.0006.000000T0000Z-110124T1500Z/
KUSKOKWIM DELTA-
INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND
128 PM AKST SUN JAN 23 2011

...BLIZZARD WARNING IN EFFECT UNTIL 6 AM AKST MONDAY ALONG THE COAST...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL 6 AM AKST MONDAY. 

A POWERFUL FRONT WILL MOVE NORTH ACROSS THE KUSKOKWIM DELTA THROUGH
TONIGHT. VERY STRONG NORTHEAST WINDS WITH GUSTS TO 70 MPH ALONG
THE COAST COMBINED WITH BLOWING SNOW WILL REDUCE VISIBILITIES TO
NEAR ZERO AT TIMES. ADDITIONALLY THE STRONG WINDS COMBINED WITH
COLD TEMPERATURES WILL RESULT IN WIND CHILL VALUES AS LOW AS 55
BELOW ZERO TONIGHT. CONDITIONS SHOULD START TO IMPROVE MONDAY
MORNING AS THE FRONT MOVES THROUGH THE AREA AND 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.

&&

$$

AKZ195-241500-
/X.EXT.PAFC.BZ.W.0006.000000T0000Z-110124T2100Z/
PRIBILOF ISLANDS-
INCLUDING THE CITY OF...SAINT PAUL
128 PM AKST SUN JAN 23 2011

...BLIZZARD WARNING NOW IN EFFECT UNTIL NOON AKST MONDAY...

THE BLIZZARD WARNING IS NOW IN EFFECT UNTIL NOON AKST MONDAY. 

BLIZZARD CONDITIONS ARE EXPECTED TO CONTINUE THROUGH THE MORNING
HOURS ON MONDAY AS A POWERFUL FRONT MOVES ACROSS THE EASTERN AND
CENTRAL BERING SEA. STRONG WINDS WITH GUSTS TO 65 MPH ALONG WITH
BLOWING SNOW WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES
THROUGH THE OVERNIGHT HOURS AND INTO MONDAY MORNING. WINDS WILL
GRADUALLY TAPER OFF OVERNIGHT HOWEVER GUSTS TO 45 MPH WILL
CONTINUE THROUGH MONDAY MORNING ALONG WITH BLOWING SNOW. 

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.

&&

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 PM AKST THU JAN 20 2011

.ANALYSIS AND UPPER LEVELS...
A WARMER AND MORE ACTIVE WEATHER PATTERN CONTINUES TO TAKE HOLD OVER
SOUTHERN ALASKA AND THE GULF. THE DECAYING OCCLUDED FRONT THAT PUSHED
ONSHORE YESTERDAY STRETCHES ACROSS SOUTHERN ALASKA ALONG A LINE FROM
BETHEL TO THE NORTHERN SUSITNA VALLEY AND INTO THE CENTRAL COPPER
RIVER BASIN. WIDESPREAD SNOW SHOWERS EXIST ALONG THE LENGTH OF THIS
FRONT...WITH AREAS OF LIGHT SNOW AND FREEZING DRIZZLE ON THE BACKSIDE
OF THIS SYSTEM AS WARM MOIST AIR OVERRUNS THE COOLER ARCTIC AIR MASS
STILL TRAPPED NEAR THE SURFACE. A LARGE STACKED UPPER LEVEL LOW
CONTINUES TO DOMINATE THE SOUTHERN BERING SEA AND THE ALEUTIAN
CHAIN...WITH MULTIPLE SHORTWAVES DEVELOPING ON THE SOUTHERN PERIPHERY
OF THIS LOW THAT SPIN UP INTO NEW LOW PRESSURE SYSTEMS AS THEY ROTATE
NORTHWARD TOWARDS THE AKPEN AND THE GULF. ONE SUCH SURFACE LOW IS
LOCATED NEAR SAND POINT AND IS POISED TO ENTER THE GULF LATE TONIGHT.

.MODEL DISCUSSION...
NUMEROUS PROBLEMS AND UNCERTAINTIES EXIST WITH RECENT MODEL RUNS
ACROSS ALASKA. MODELS HAVE BEEN INITIALIZING POORLY WITH THE FAST
TRACKING WEATHER SYSTEMS COMING OUT OF THE NORTHERN PACIFIC...THUS
SIGNIFICANT DIFFERENCES IN THE PLACEMENT OF THESE SYSTEMS ARISE
WITHIN 24 HOURS OUT. THE MODELS ALSO HAVE POOR RUN TO RUN
CONSISTENCY...MAKING IT DIFFICULT TO CHOOSE WHICH ONE TO USE FOR THE
FORECAST THIS AFTERNOON. GIVEN THE POOR STATE OF THE MODELS...THIS
AFTERNOON'S FORECAST USED MOSTLY THE PREVIOUS FORECAST WITH A SMALL
BLEND OF THE 12Z ECMWF SINCE IT INITIALIZED THE BEST WITH REGARDS TO
THE CURRENT LOW NEAR THE AKPEN.

.SHORT TERM FORECAST...

.SOUTHCENTRAL AND SOUTHWEST ALASKA...THE STALLED REMNANTS OF
YESTERDAY'S OCCLUDED FRONT SHOULD GRADUALLY DISSIPATE TONIGHT OVER
THE INTERIOR OF SOUTHERN ALASKA ALONG WITH ANY REMAINING SNOW
SHOWERS. A CLOUD DECK SHOULD REMAIN IN PLACE OVERNIGHT ACROSS THE
REGION...WHICH COMBINED WITH A STRENGTHENING SOUTHWESTERLY
FLOW...SHOULD MODERATE TEMPERATURES TONIGHT. THE NEXT SYSTEM IS
ALREADY PUSHING ONSHORE OVER THE AKPEN AND WILL TURN NORTHEASTWARD
AND ENTER THE NORTHERN GULF LATE TONIGHT INTO EARLY TOMORROW MORNING.
THE BULK OF THE PRECIPITATION ASSOCIATED WITH THIS SYSTEM SHOULD
REMAIN ALONG THE NORTH GULF COAST AND AREAS SOUTH OF THE KILBUCK
MOUNTAINS. ANOTHER SYSTEM FOLLOWS QUICKLY ON THE HEELS OF THE FIRST
LOW ON FRIDAY AFTERNOON AND BRING ADDITIONAL PRECIPITATION TO THE
GULF COAST. A POTENT WEATHER FRONT LOOKS TO MOVE ONSHORE ACROSS
SOUTHERN ALASKA ON SUNDAY MORNING.

.BERING SEA AND ALEUTIANS...CONTINUED QUIET WEATHER FOR THE NEXT FEW
DAYS...WITH SUB-GALE WINDS AND ISOLATED SHOWERS THE NORM ACROSS THE
REGION. THE EXCEPTION WILL BE THE SOUTHEASTERN BERING AND THE
AKPEN...WHERE A SERIES OF WEAK LOWS WILL TRACK UP FROM THE SOUTHWEST
AND GRAZE THE REGION BEFORE CURVING EASTWARD INTO THE GULF OF ALASKA.
THE NEXT BIG SYSTEM IS POISED TO TRACK TOWARDS THE CENTRAL AND
EASTERN ALEUTIANS SATURDAY AND SUNDAY AS THE MAIN UPPER LEVEL LOW
FINALLY MIGRATES EASTWARD TOWARDS THE MAINLAND.

.LONG TERM FORECAST...
AN ACTIVE WEATHER PATTERN WILL CONTINUE THROUGH NEXT WEEK OVER
SOUTHERN ALASKA AS AN UPPER LEVEL LOW REDEVELOPS OVER THE BERING SEA
EARLY NEXT WEEK AND GENERATES MORE SHORTWAVES WHICH WILL IMPACT
SOUTHERN ALASKA.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.
MARINE...GALE WARNING...132.
         HEAVY FREEZING SPRAY WARNING...179 185.
FIRE WEATHER...NONE.

KS JAN 11