Wind Chill Advisory 4, NWS Anchorage, AK

077 
WWAK41 PAFC 050056
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
356 PM AKST WED FEB 4 2015


AKZ131-051430-
/O.CON.PAFC.WC.Y.0004.150205T0900Z-150206T2100Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
356 PM AKST WED FEB 4 2015

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON AKST FRIDAY THROUGH THOMPSON PASS...

* LOCATION...THROUGH THOMPSON PASS.

* WIND...NORTHEAST 35 TO 50 MPH LATE TONIGHT INCREASING TO 50 TO
  70 MPH BY FRIDAY MORNING.

* WIND CHILL VALUES...AS LOW AS 45 BELOW ZERO.

* TIMING...WINDS WILL STEADILY STRENGTHEN TONIGHT THROUGH
  THURSDAY. WIND CHILLS WILL INITIALLY BE COLDEST IN THE LATE
  NIGHT THROUGH MORNING HOURS...BUT AS COLD AIR SETTLES IN A MORE
  PROLONGED PERIOD OF LOW WIND CHILLS IS LIKELY LASTING WELL INTO
  FRIDAY.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

461 
WWAK41 PAFC 051403
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
503 AM AKST THU FEB 5 2015

AKZ141-060315-
/O.EXB.PAFC.WC.Y.0004.150205T1403Z-150207T2100Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
503 AM AKST THU FEB 5 2015

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON AKST SATURDAY...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON AKST SATURDAY. 

* WIND...NORTH 10 TO 25 MPH WITH LOCALLY STRONGER GUSTS.

* WIND CHILL VALUES...30 BELOW TO 50 BELOW ZERO.

* TIMING...WINDS AND LOW WIND CHILLS WILL BE LOCALIZED TO MOUNTAIN
  GAPS EARLY THIS MORNING...BUT THEN BECOME MORE WIDESPREAD ACROSS
  THE COPPER RIVER BASIN BY AFTERNOON. THERE WILL BE PERIODIC LULLS
  IN WIND OVER THE NEXT COUPLE DAYS...BUT WHEN THE WIND DOES BLOW
  WIND CHILLS WILL BE QUITE COLD.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

AKZ131-060315-
/O.EXT.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
503 AM AKST THU FEB 5 2015

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON AKST SATURDAY
THROUGH THOMPSON PASS...

* LOCATION...THROUGH THOMPSON PASS.

* WIND...NORTHEAST 30 TO 50 MPH WITH GUSTS 50 TO 70 MPH.

* WIND CHILL VALUES...AS LOW AS 45 BELOW ZERO.

* TIMING...WINDS WILL STEADILY STRENGTHEN TODAY THROUGH TONIGHT.
  WIND CHILLS WILL INITIALLY BE COLDEST IN THE LATE NIGHT THROUGH
  MORNING HOURS...BUT AS COLD AIR SETTLES IN A MORE PROLONGED
  PERIOD OF LOW WIND CHILLS IS LIKELY.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

374 
WWAK41 PAFC 060112
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
412 PM AKST THU FEB 5 2015


AKZ131-061900-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
412 PM AKST THU FEB 5 2015

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST SATURDAY
THROUGH THOMPSON PASS...

* LOCATION...THROUGH THOMPSON PASS.

* WIND...NORTHEAST 20 TO 40 MPH WITH GUSTS 70 TO 80 MPH.

* WIND CHILL VALUES...AS LOW AS 45 BELOW ZERO.

* TIMING...PROLONGED LOW WIND CHILLS WILL CONTINUE THROUGH
  SATURDAY MORNING.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

AKZ141-061900-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
412 PM AKST THU FEB 5 2015

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

* WIND...NORTH 10 TO 25 MPH WITH LOCAL GUSTS TO 40 MPH OR STRONGER.

* WIND CHILL VALUES...20 BELOW TO 50 BELOW ZERO.

* TIMING...WINDS AND LOW WIND CHILLS WILL CONTINUE THROUGH
  SATURDAY MORNING. THERE WILL BE PERIODIC LULLS IN WIND OVER THE
  NEXT COUPLE DAYS...BUT WHEN THE WIND DOES BLOW WIND CHILLS WILL
  BE QUITE COLD.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

506 
WWAK41 PAFC 061412
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
512 AM AKST FRI FEB 6 2015

AKZ131-061515-
/O.CAN.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
512 AM AKST FRI FEB 6 2015

...WIND CHILL ADVISORY IS CANCELLED FOR THOMPSON PASS...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE WIND
CHILL ADVISORY. 

TEMPERATURES HAVE REMAINED ABOVE ZERO THROUGH MOST OF THOMPSON
PASS KEEPING WIND CHILLS FROM DROPPING TO VERY LOW LEVELS. THUS
THE ADVISORY HAS BEEN CANCELLED.

$$

AKZ141-070315-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
512 AM AKST FRI FEB 6 2015

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

* WIND...NORTH 15 TO 30 MPH WITH LOCAL GUSTS TO 40 MPH.

* WIND CHILL VALUES...20 BELOW TO 50 BELOW ZERO.

* TIMING...WINDS WILL PEAK TODAY THEN DIMINISH TONIGHT INTO
  SATURDAY. MEANWHILE TEMPERATURES WILL HOLD STEADY OR SLOWLY FALL
  TODAY. AS TEMPERATURES CONTINUE TO DROP TONIGHT WIND CHILLS WILL
  BOTTOM OUT LATE TONIGHT THROUGH SATURDAY MORNING.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

119 
WWAK41 PAFC 070102
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
402 PM AKST FRI FEB 6 2015

AKZ141-071445-
/O.CON.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
402 PM AKST FRI FEB 6 2015

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

* WIND...NORTH 10 TO 25 MPH. LOCAL GUSTS TO 50 MPH DECREASING
  AFTER MIDNIGHT TONIGHT.

* WIND CHILL VALUES...30 BELOW TO 50 BELOW ZERO.

* TIMING...WINDS WILL SLOWLY DIMINISH THIS EVENING INTO SATURDAY
  WHILE TEMPERATURES WILL HOLD STEADY OR SLOWLY FALL. WIND CHILLS
  WILL BOTTOM OUT LATE TONIGHT THROUGH SATURDAY MORNING.

* IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE.

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.

&&

$$

AKZ171-071445-
/O.NEW.PAFC.BZ.A.0002.150208T0000Z-150208T1500Z/
KODIAK ISLAND-
INCLUDING THE CITY OF...KODIAK CITY
402 PM AKST FRI FEB 6 2015

...BLIZZARD WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

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

* SNOW...5 TO 10 INCHES.

* VISIBILITY...POSSIBLY REDUCED TO ONE QUARTER MILE OR LESS AT
  TIMES IN FALLING AND BLOWING SNOW.

* WIND...NORTH TO NORTHWEST 30 TO 45 MPH.

* TIMING...SNOW WILL DEVELOP DURING THE DAY ON SATURDAY AND BECOME
  HEAVY AT TIMES LATE SATURDAY AFTERNOON OR EARLY EVENING. STRONG
  WINDS FROM THE NORTH TO NORTHEAST WILL COMBINE WITH THE SNOW TO
  PRODUCE POSSIBLE BLIZZARD CONDITIONS. TEMPERATURES WILL WARM AND
  WINDS WILL DIMINISH LATE SATURDAY NIGHT INTO SUNDAY MORNING
  NEAR KODIAK CITY...BUT SNOW AND BLOWING SNOW MAY CONTINUE WELL
  INTO SUNDAY FOR INLAND AREAS AND AROUND SHELIKOF STRAIT.

* IMPACTS...SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING SNOW
  MAY PRODUCE WHITE-OUT CONDITIONS AT TIMES. DRIVING MAY BECOME
  VERY DIFFICULT.

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
DIFFICULT.

&&

$$

877 
WWAK41 PAFC 071400
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 AM AKST SAT FEB 7 2015

AKZ141-071500-
/O.CAN.PAFC.WC.Y.0004.000000T0000Z-150207T2100Z/
COPPER RIVER BASIN-
INCLUDING THE CITIES OF...GLENNALLEN...EUREKA...MCCARTHY...
PAXSON...SLANA
500 AM AKST SAT FEB 7 2015

...WIND CHILL ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE WIND
CHILL ADVISORY. 

WINDS HAVE BECOME LIGHT ACROSS MOST OF THE COPPER RIVER BASIN.
THERE MAY BE A FEW ISOLATED GUSTS THROUGH THE MORNING.

$$

AKZ171-080300-
/O.UPG.PAFC.BZ.A.0002.150208T0000Z-150208T1500Z/
/O.NEW.PAFC.BZ.W.0002.150208T0600Z-150208T1800Z/
KODIAK ISLAND-
INCLUDING THE CITY OF...KODIAK CITY
500 AM AKST SAT FEB 7 2015

...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM AKST
SUNDAY...

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

* SNOW...4 TO 9 INCHES.

* VISIBILITY...REDUCED TO ONE QUARTER MILE OR LESS AT TIMES.

* WIND...NORTH 25 TO 40 MPH EXCEPT 40 TO 55 MPH ALONG SHELIKOF
  STRAIT.

* TIMING...SNOW SHOWERS WILL DEVELOP TODAY. STEADY SNOW WILL THEN
  MOVE IN FROM THE GULF THIS EVENING AND SPREAD WESTWARD ACROSS
  THE ISLAND OVERNIGHT. WINDS WILL INCREASE AS THE STEADY SNOW
  ARRIVES RESULTING IN BLIZZARD CONDITIONS. TEMPERATURES WILL
  WARM AND WINDS WILL DIMINISH SUNDAY MORNING LEADING TO IMPROVING
  VISIBILITIES.

* IMPACTS...SNOWFALL COMBINED WITH STRONG WINDS AND BLOWING SNOW 
  MAY PRODUCE WHITE-OUT CONDITIONS AT TIMES. DRIVING MAY BECOME 
  VERY DIFFICULT. 

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 VERY DIFFICULT. ALL TRAVEL AND OUTDOOR
ACTIVITY IS STRONGLY DISCOURAGED.

&&

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
421 PM AKST TUE FEB 3 2015

.ANALYSIS AND UPPER LEVELS...

THE UPPER LEVEL RIDGE REMAIN THE DOMINANT FEATURE OVER THE
FORECAST AREA TODAY EXTENDING FROM THE NORTHERN BERING SEA TO THE
ALCAN BORDER IN THE COPPER RIVER BASIN. THIS RIDGE WILL REMAIN
ANCHORED OVER THE NORTHERN BERING SEA THROUGH THE REST OF THE
WEEK. HOWEVER AN UPPER LEVEL LOW IN THE CANADIAN ARCTIC WILL CROSS
THE YUKON AND MOVE INTO THE NORTHEAST GULF OF ALASKA THURSDAY
NIGHT.
THE SURFACE PATTERN IS SIMILAR TO THE UPPER LEVELS WITH HIGH
PRESSURE OVER THE NORTHERN BERING SEA AND MOST OF MAINLAND
ALASKA. THE ONLY SIGNIFICANT LOW NEARBY IS WELL SOUTH OF THE
ALASKA PENINSULA AND WILL REMAIN SOUTH OF THE AREA. HOWEVER THIS
PATTERN IS KEEPING A TIGHT PRESSURE GRADIENT OVER THE
ALEUTIANS...BERING SEA...AND INTO SOUTHWEST MAINLAND ALASKA.

&&

.MODEL DISCUSSION...
MODELS ARE IN BETTER AGREEMENT IN THE UPPER LEVEL PATTERN THAN
THEY WERE YESTERDAY. THE GFS HAS NOW SHIFTED ITS SOLUTION TO BRING
THE 500 MB LOW OUT OF THE YUKON THURSDAY NIGHT AND OVER YAKUTAT
INTO THE NORTHEAST GULF FRIDAY MORNING. GETTING A CONSISTENT
PATTERN BETWEEN THE MODELS IS IMPORTANT IN TIMING THE SHORT WAVES
LATE THIS WEEK WHICH WILL INCREASE WINDS IN THE SOUTHCENTRAL AND
SOUTHWEST ALASKA.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...

FOG HAS LINGERED ACROSS ANCHORAGE AND VICINITY THROUGH THIS
AFTERNOON...AND WITH LITTLE CHANGE IN THE AIR MASS FOG IS LIKELY
TO LINGER THROUGH MOST OF WEDNESDAY. THE FOG WILL LIKELY BE QUITE
SHALLOW...YET LOCALLY DENSE AT TIMES. FOG WILL LIKELY ALSO BE
PREVALENT ACROSS PARTS OF THE COPPER RIVER VALLEY THROUGH MUCH OF
WEDNESDAY.

OTHERWISE...CONDITIONS WILL BE CLEAR...DRY...AND COLD. HIGH
PRESSURE BUILDING OVER THE INTERIOR OF ALASKA AND LOW PRESSURE
OVER THE SOUTHEAST GULF WILL COMBINE TO INDUCE AN INCREASING
PRESSURE GRADIENT ACROSS SOUTHCENTRAL THROUGH THURSDAY. WINDS WILL
BEGIN TO APPROACH STRONG WIND CRITERIA THROUGH THE TYPICAL
CHANNELED AREAS ESPECIALLY TOWARD EASTERN PRINCE WILLIAM SOUND
DURING THE DAY ON THURSDAY AS SOME UPPER LEVEL JET SUPPORT BEGINS
TO APPROACH OVERHEAD.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (TONIGHT THROUGH FRI)...

OFFSHORE FLOW WILL CONTINUE THROUGH THE END OF THE WORK WEEK WHICH
WILL KEEP SKIES ON THE CLEAR SIDE ACROSS THE SOUTHWEST MAINLAND.
COLDER AIR WILL BEGIN TO FILTER ACROSS THE REGION THURSDAY
AFTERNOON AS AN ARCTIC TROUGH SLIDES TOWARD THE YUKON...WITH MUCH
OF THE COLD AIR REMAINING WELL TO THE EAST OF SOUTHWEST ALASKA.
THE FORECAST HAS BEEN UPDATED TO SHUNT THE COLDER AIR EASTWARD AND
KEEP SLIGHTLY WARMER TEMPERATURES ACROSS THE AREA. ONCE CONCERN
THAT COULD DEVELOP BY THE END OF THE WEEK WILL BE THE POTENTIAL
FOR HAZARDOUS WIND CHILLS AS TEMPERATURES DROP BELOW FREEZING AND
WINDS OF 20 TO 30 MPH WILL BE POSSIBLE ACROSS THE KUSKOKWIM DELTA.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (TONIGHT THROUGH FRI)...

AN UPPER LEVEL WAVE BEING ABSORBED BY A LOW IN THE NORTH PACIFIC
WILL ACCOMPANY A PIECE OF COLD AIR ROTATING AROUND THE HIGH
PRESSURE IN THE BERING SEA. THE COMBINATION OF THESE TWO FEATURES
WILL ALLOW FOR RAIN AND SNOW CHANCES TO INCREASE ACROSS THE ALASKA
PENINSULA TONIGHT AND SPREAD WESTWARD THROUGH THE END OF THE WORK
WEEK. WARMER AIR ROTATING AROUND THE BACK SIDE OF THE LOW IN THE
NORTH PACIFIC WILL CREATE A BRIEF WARM UP ACROSS THE ALASKA
PENINSULA AND ALEUTAINS THROUGH THE WEEK BEFORE COLDER TEMPERATURES
RETURN BY FRIDAY.

&&

.LONG TERM FORECAST (DAYS 3 THROUGH 7...FRI THROUGH TUE)...WELL
OUR LONG-WAVE FLOW IS SET TO CHANGE FROM ONE TYPE OF BLOCKING
PATTERN TO ANOTHER. EARLY IN THIS PERIOD...THE REX BLOCK OVER THE
BERING WILL START TO LOOSE ITS STRUCTURE AS ARCTIC AIR DIVES DOWN
OVER THE MAINLAND. THIS COLD AIR WILL DIG A NEW TROUGH OVER THE
EXTREME NE GULF OF ALASKA AND START TO FORM A CLOSED UPPER LEVEL
LOW THERE. MEANWHILE...HIGH PRESSURE REMAINS DOMINANT OVER THE
BERING WITH A WEAK CLOSED AREA OF LOW PRESSURE SOUTH OF WESTERN
ALEUTIANS. THIS LOW-HIGH-LOW COUPLET WILL FORM A NON-STANDARD
OMEGA BLOCK. WHILE THE OMEGA BLOCK WILL NOT REMAIN INTACT FOR A
TERRIBLY LONG TIME...IT WILL CONTROL MUCH OF THE WEATHER THROUGH
THE WEEKEND.

WINDS WILL INCREASE DURING THIS PERIOD...ESPECIALLY FOR AREAS FROM
BRISTOL BAY BACK THROUGH THE COPPER RIVER DELTA THAT FAVOR
NORTHERLY FLOW. A DRY BUT RATHER STRONG SHORTWAVE WILL BRING A
BLAST OF ARCTIC AIR THROUGH MUCH OF SOUTH CENTRAL ON SATURDAY.
OVER THE PAST 24 HOURS...THE MODELS HAVE DONE SOME COMPROMISING.
THE EC HAS LED THE WAY IN TERMS OF SYNOPTICS ASSOCIATED WITH HAVE
AN UPPER-LEVEL CLOSED LOW NEAR YAKUTAT. BUT THE GFS SEEMS TO BE
TRACKING A LITTLE BIT BETTER ON THE 850MB TEMPERATURE DROP THAT
WILL OCCUR WITH THIS SYSTEM. THE NET EFFECT OF ALL THIS IS THAT
THE STRONGEST WINDS NOW LOOK LIKE THEY WILL OCCUR A BIT FURTHER
WEST...FROM THE COOK INLET BACK THROUGH BRISTOL BAY. PLACES LIKE
THE MATANUSKA VALLEY...THOMPSON PASS AND SEWARD WILL STILL SEE
STRONG WINDS...BUT NOT QUITE AS STRONG AS IF THE UPPER LEVEL
SUPPORT HAD PUSHED RIGHT THROUGH THOSE AREAS. WITH COLD AIR IN
PLACE AND A REINFORCING SHOT DUE IN FOR THE WEEKEND...WIND CHILLS
COULD REACH THEIR COLDEST OF THE SEASON DROPPING TO THE -20 TO -30
RANGE.

THE PATTERN THEN BEGINS TO SHIFT INTO NEXT WEEK AS THE COLD AIR
DIGS DEEP ENOUGH INTO THE NORTH PACIFIC THAT IT RE-ESTABLISHES THE
LONG-WAVE TROUGH. THIS WILL ALLOW MOISTURE AND WARMER TEMPERATURES
TO CLIMB BACK TOWARDS THE MAINLAND BY THE EARLY TO MIDDLE PART OF
NEXT WEEK.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALES 127 128 155 170 172 173 174.
         HEAVY FREEZING 126 127 139 414.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...EZ
SOUTHCENTRAL ALASKA...CC
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...MC
LONG TERM...MO