Wind Chill Advisory 17, NWS Anchorage, AK

319 
WWAK41 PAFC 201339
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
439 AM AKST TUE NOV 20 2012

...BREEZY AND COLD NORTH OF TALKEETNA...

A COLD AIR MASS IS IN PLACE OVER THE MAINLAND OF ALASKA CAUSING COLD AIR
TO RUSH THROUGH BROAD PASS AND CHANNELED TERRAIN THROUGH THE ALASKA
RANGE. THESE WINDS AND COLD TEMPERATURES WILL CAUSE DANGEROUS WIND
CHILLS THROUGH MID MORNING TODAY.

AKZ145-201900-
/X.CON.PAFC.WC.Y.0017.000000T0000Z-121120T1900Z/
SUSITNA VALLEY-
INCLUDING THE CITIES OF...TALKEETNA...WILLOW...CANTWELL
439 AM AKST TUE NOV 20 2012

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM AKST THIS
MORNING NORTH OF TALKEETNA...

* LOCATION...NORTH OF TALKEETNA

* WIND...NORTHEAST WIND 15 TO 30 MPH.

* WIND CHILL VALUES...35 TO 45 BELOW ZERO.

* TIMING...THROUGH 10 AM THIS MORNING.

* IMPACTS...EXPOSURE TO DANGEROUS WIND CHILL VALUES COULD LEAD 
  TO FROSTBITE AND HYPOTHERMIA. 

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.

&&

$$

106 
WWAK41 PAFC 201902
WSWAER

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1002 AM AKST TUE NOV 20 2012


AKZ145-202015-
/X.EXP.PAFC.WC.Y.0017.000000T0000Z-121120T1900Z/
SUSITNA VALLEY-
INCLUDING THE CITIES OF...TALKEETNA...WILLOW...CANTWELL
1002 AM AKST TUE NOV 20 2012

...WIND CHILL ADVISORY HAS EXPIRED NORTH OF TALKEETNA...


$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
130 PM AKST MON NOV 19 2012

MODELS IN PRETTY GOOD ALIGNMENT THROUGH LATE THURSDAY. A STRONG
NEARLY FULL LATITUDE RIDGE WILL HOLD OVER THE EASTERN TWO THIRDS OF
THE BERING SEA THROUGH THE WEEK. AN ACTIVE FRONT WITH GALES OVER THE
WESTERN ALEUTIANS ALREADY SHOWING SIGNS OF WEAKENING AND SHEARING
SOUTHEAST AS THE PARENT LOW CENTER TRACKS NORTHWARD ALONG 165E. ONLY
EXCPT SMALL CRAFT LEVEL WINDS TO MAKE IT INTO THE ADAK AREA LATE THIS
AFTERNOON AND CONTINUE UNTIL LATER MONDAY EVENING. SUSTAINED WINDS IN
THE ATKA AREA WILL ONLY REACH 20 TO 25 KTS FOR A TIME MONDAY NIGHT
THEN DROP BACK BY TUE MORNING. HIGH PRESSURE RIDGE WILL REBUILD BACK
IN BEHIND THIS FRONT TUE TO FORM A SURFACE RIDGE THAT EXTENDS FROM
30N NORTHWARD ACROSS THE CHUKCHI SEA AND INTO THE ARCTIC.

NORTH WINDS HAVE DROPPED BELOW WARNING LEVELS OVER THE ALASKA
PENINSULA ZONE AND WILL CONTINUE A DOWNWARD TREND, BUT WON'T GO AWAY
ALL TOGETHER, AND REMAIN IN THE 20 TO 30 KT RANGE FROM THE EASTERN
ALEUTIANS/AK PENINSULA ON UP TO THE SOUTHWEST COAST THROUGH AT LEAST
THURSDAY.

MAIN SNOW HAS ENDED OVER KODIAK ISLAND BUT UPSTREAM MOISTURE
THREATENS TO PRODUCE AN OCCASIONAL SNOW SHOWER OR TWO THRU THIS
AFTERNOON ALONG THE EASTERN COASTS. BY THIS EVENING MOST, IF NOT ALL
OF THE CLOUDS AND SHOWERS WILL HAVE SLID OF TO THE EAST. LATE TUESDAY
AFTERNOON LOOKS LIKE A REPEAT WITH MORE SNOW AND BLOWING AS ANOTHER
BATCH OF MOISTURE RETURNS FROM THE NORTHEAST. WINDS HOWEVER WONT BE
AS STRONG. AT THIS POINT THE SNOW MAY LAST THROUGH WEDNESDAY LEADING
TO POSSIBLY SIGNIFICANT AMOUNTS (2-5 INCHES).

MODELS COMING INTO LINE WITH THE NEXT BIG STORM MOVING ACROSS THE
NORTHEAST PACIFIC WEDNESDAY THROUGH FRIDAY. THIS WILL BE MOSTLY A
SOUTHEAST ALASKA PROBLEM WITH ONLY GALE FORCE NORTH NORTHEASTERLIES
IN THE GULF OFF SHORE MARINE ZONE. WITH THE ARCTIC HIGH HOLDING
ACROSS THE INTERIOR AND NORTHWEST TERRITORIES, AND THE BIG PRESSURE
FALLS FORECAST TO THE SOUTH, OUTFLOW WINDS ALONG THE ENTIRE STRETCH
OF THE NORTH GULF COAST WILL INCREASE AS EARLY AS WEDNESDAY EVENING
AND REACH A PEAK THURSDAY NIGHT.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...NONE.

MARINE...STORM WARNING 155. GALE AREAS 127 128 132 150 160 165 170
171 175 176 180 411.

HEAVY FREEZING SPRAY WARNING AREAS 126 127 128 130 140 141 150 155
160 165 180 AND 414.

FIRE WEATHER...NOTHING.

D PERCY NOV 12