Alert archive / Alaska / Wind Chill Advisories in 2015
Wind Chill Advisory 2, NWS Anchorage, AK
NWS Anchorage, AK issued this wind chill advisory at Jan 25, 2015, 4:59 AM AKST. It took effect at Jan 25, 2015, 6:00 PM AKST. It was in force for 35 hr.
The area
The counties it named.
The facts
- Issued
- Jan 25, 2015, 4:59 AM AKST (13:59 UTC)
- In effect from
- Jan 25, 2015, 6:00 PM AKST
- Expired
- Jan 27, 2015, 4:43 AM AKST
- In force
- 35 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted, in the capitals the NWS used until 2016.
179 WWAK42 PAFC 251359 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 459 AM AKST SUN JAN 25 2015 AKZ155-260300- /O.NEW.PAFC.WC.Y.0002.150126T0900Z-150126T2100Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 459 AM AKST SUN JAN 25 2015 ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON AKST MONDAY... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON AKST MONDAY. * WIND...NORTHEAST WIND 10 TO 20 MPH. * WIND CHILL VALUES...35 TO 50 BELOW ZERO. * TIMING...WIND CHILLS WILL FALL TO DANGEROUSLY LOW LEVELS STARTING LATE TONIGHT AS WINDS INCREASE OUT OF THE NORTHEAST WITH CONTINUED COLD TEMPERATURES. WIND CHILLS WILL THEN DIMINISH DURING THE DAY ON MONDAY AS TEMPERATURES INCREASE. * 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. && $$
7 follow-up statements
109 WWAK42 PAFC 252356 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 256 PM AKST SUN JAN 25 2015 AKZ155-261300- /O.EXT.PAFC.WC.Y.0002.150126T0300Z-150126T2100Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 256 PM AKST SUN JAN 25 2015 ...WIND CHILL ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO NOON AKST MONDAY... * WIND...NORTHEAST WIND 10 TO 20 MPH. * WIND CHILL VALUES...40 TO 50 BELOW ZERO. * TIMING...WIND CHILLS HAVE FALLEN TO DANGEROUSLY LOW LEVELS AS WINDS HAVE BEGUN TO INCREASE OUT OF THE NORTHEAST ACCOMPANIED BY CONTINUED COLD TEMPERATURES. WIND CHILLS WILL DIMINISH DURING THE DAY ON MONDAY AS TEMPERATURES INCREASE. * IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. && $$
256 WWAK42 PAFC 261229 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 329 AM AKST MON JAN 26 2015 AKZ155-262100- /O.CON.PAFC.WC.Y.0002.000000T0000Z-150126T2100Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 329 AM AKST MON JAN 26 2015 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST TODAY... * WIND...NORTHEAST WIND 10 TO 20 MPH. * WIND CHILL VALUES...40 TO 50 BELOW ZERO. * TIMING...WIND CHILLS WILL DIMINISH DURING THE DAY TODAY AS TEMPERATURES INCREASE. * 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. && $$
706 WWAK42 PAFC 261819 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 919 AM AKST MON JAN 26 2015 AKZ161-270730- /O.NEW.PAFC.WW.Y.0003.150127T0300Z-150127T1800Z/ BRISTOL BAY- INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK... PILOT POINT 919 AM AKST MON JAN 26 2015 ...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW IN EFFECT FROM 6 PM THIS EVENING TO 9 AM AKST TUESDAY NORTH AND WEST OF KING SALMON... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM AKST TUESDAY. * LOCATION...AREAS NORTH AND WEST OF KING SALMON INCLUDING DILLINGHAM AND KOLIGANEK. * SNOW...5 TO 8 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE AT TIMES. * WIND...NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * TIMING...MODERATE SNOW WILL BEGIN TO FALL THIS EVENING AND BE ACCOMPANIED BY GUSTY WINDS WHICH WILL LIMIT VISIBILITIES. BOTH WINDS AND SNOW WILL BEGIN TO TAPER OFF TUESDAY MORNING. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ AKZ155-262100- /O.CON.PAFC.WC.Y.0002.000000T0000Z-150126T2100Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 919 AM AKST MON JAN 26 2015 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON AKST TODAY... * WIND...NORTHEAST WIND 10 TO 20 MPH. * WIND CHILL VALUES...40 TO 50 BELOW ZERO. * TIMING...WIND CHILLS WILL DIMINISH DURING THE DAY TODAY AS TEMPERATURES INCREASE. * 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. && $$
874 WWAK42 PAFC 261944 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 1044 AM AKST MON JAN 26 2015 AKZ155-271530- /O.EXT.PAFC.WC.Y.0002.000000T0000Z-150127T1800Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 1044 AM AKST MON JAN 26 2015 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 9 AM AKST TUESDAY... * WIND...NORTHEAST WIND 15 TO 30 MPH. LOCAL GUSTS TO 40 MPH ALONG THE COAST. * WIND CHILL VALUES...40 TO 50 BELOW ZERO. * TIMING...WIND CHILLS WILL MODERATE SOME TUESDAY MORNING. * IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. && $$ AKZ161-271530- /O.CON.PAFC.WW.Y.0003.150127T0300Z-150127T1800Z/ BRISTOL BAY- INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK... PILOT POINT 1044 AM AKST MON JAN 26 2015 ...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM AKST TUESDAY NORTH AND WEST OF KING SALMON... * LOCATION...AREAS NORTH AND WEST OF KING SALMON INCLUDING DILLINGHAM AND KOLIGANEK. * SNOW...5 TO 8 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE AT TIMES. * WIND...NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * TIMING...MODERATE SNOW WILL BEGIN TO FALL THIS EVENING AND BE ACCOMPANIED BY GUSTY WINDS WHICH WILL LIMIT VISIBILITIES. BOTH WINDS AND SNOW WILL BEGIN TO TAPER OFF TUESDAY MORNING. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$
574 WWAK42 PAFC 262200 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 100 PM AKST MON JAN 26 2015 AKZ195-271530- /O.EXB.PAFC.WW.Y.0003.150126T2200Z-150127T1800Z/ PRIBILOF ISLANDS- INCLUDING THE CITY OF...SAINT PAUL 100 PM AKST MON JAN 26 2015 ...WINTER WEATHER ADVISORY FOR BLOWING SNOW IN EFFECT UNTIL 9 AM AKST TUESDAY... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A WINTER WEATHER ADVISORY FOR BLOWING SNOW...WHICH IS IN EFFECT UNTIL 9 AM AKST TUESDAY. * SNOW...1 TO 3 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES. * WIND...NORTHEAST 20 TO 30 MPH WITH GUSTS TO 50 MPH. * TIMING...LOW VISIBILITIES IN BLOWING SNOW WILL SPREAD NORTH FROM SAINT GEORGE THIS AFTERNOON. VISIBILITIES WILL INCREASE AS BLOWING SNOW DIMINISHES BY THE MID MORNING HOURS TUESDAY. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ AKZ161-271530- /O.CON.PAFC.WW.Y.0003.150127T0300Z-150127T1800Z/ BRISTOL BAY- INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK... PILOT POINT 100 PM AKST MON JAN 26 2015 ...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 9 AM AKST TUESDAY NORTH AND WEST OF KING SALMON... * LOCATION...AREAS NORTH AND WEST OF KING SALMON INCLUDING DILLINGHAM AND KOLIGANEK. * SNOW...5 TO 8 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE AT TIMES. * WIND...NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * TIMING...MODERATE SNOW WILL BEGIN TO FALL THIS EVENING AND BE ACCOMPANIED BY GUSTY WINDS WHICH WILL LIMIT VISIBILITIES. BOTH WINDS AND SNOW WILL BEGIN TO TAPER OFF TUESDAY MORNING. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ AKZ155-271530- /O.CON.PAFC.WC.Y.0002.000000T0000Z-150127T1800Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 100 PM AKST MON JAN 26 2015 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM AKST TUESDAY... * WIND...NORTHEAST WIND 15 TO 30 MPH. LOCAL GUSTS TO 40 MPH ALONG THE COAST. * WIND CHILL VALUES...40 TO 50 BELOW ZERO. * TIMING...WIND CHILLS WILL MODERATE SOME TUESDAY MORNING. * IMPACTS...INCREASED RISK OF HYPOTHERMIA AND FROSTBITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROSTBITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. && $$
758 WWAK42 PAFC 270031 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 331 PM AKST MON JAN 26 2015 AKZ161-271800- /O.EXT.PAFC.WW.Y.0003.150127T0031Z-150127T1800Z/ BRISTOL BAY- INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK... PILOT POINT 331 PM AKST MON JAN 26 2015 ...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW NOW IN EFFECT UNTIL 9 AM AKST TUESDAY NORTH AND WEST OF KING SALMON... * LOCATION...AREAS NORTH AND WEST OF KING SALMON INCLUDING DILLINGHAM AND KOLIGANEK. * SNOW...5 TO 8 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE AT TIMES. * WIND...NORTHEAST 15 TO 25 MPH WITH GUSTS TO 35 MPH. * TIMING...MODERATE SNOW ACCOMPANIED BY GUSTY WINDS HAVE ALREADY DEVELOPED AND BEGUN TO REDUCE VISIBILITIES. BOTH WINDS AND SNOW WILL BEGIN TO TAPER OFF TUESDAY MORNING. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ AKZ195-271800- /O.CON.PAFC.WW.Y.0003.000000T0000Z-150127T1800Z/ PRIBILOF ISLANDS- INCLUDING THE CITY OF...SAINT PAUL 331 PM AKST MON JAN 26 2015 ...WINTER WEATHER ADVISORY FOR BLOWING SNOW REMAINS IN EFFECT UNTIL 9 AM AKST TUESDAY... * SNOW...1 TO 3 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE OR LESS AT TIMES. * WIND...NORTHEAST 25 TO 30 MPH WITH GUSTS TO 45 MPH. * TIMING...LOW VISIBILITIES IN BLOWING SNOW WILL SPREAD NORTH FROM SAINT GEORGE EARLY THIS EVENING. VISIBILITIES WILL INCREASE AS BLOWING SNOW DIMINISHES BY THE MID MORNING HOURS TUESDAY. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$ AKZ155-271800- /O.CON.PAFC.WC.Y.0002.000000T0000Z-150127T1800Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 331 PM AKST MON JAN 26 2015 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM AKST TUESDAY... * WIND...NORTHEAST WIND 15 TO 25 MPH. LOCAL GUSTS TO 35 MPH ALONG THE COAST. * WIND CHILL VALUES...30 TO 45 BELOW ZERO. * TIMING...THE MOST DANGEROUS WIND CHILLS WILL BE THIS EVENING AS TEMPERATURES BEGIN TO GRADUALLY WARM OVERNIGHT. * 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. && $$
443 WWAK42 PAFC 271343 WSWALU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 443 AM AKST TUE JAN 27 2015 AKZ195-271445- /O.CAN.PAFC.WW.Y.0003.000000T0000Z-150127T1800Z/ PRIBILOF ISLANDS- INCLUDING THE CITY OF...SAINT PAUL 443 AM AKST TUE JAN 27 2015 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE WINTER WEATHER ADVISORY. BLOWING SNOW WILL CONTINUE THROUGH THE DAY...HOWEVER VISIBILITIES ARE EXPECTED TO REMAIN ABOVE 1/2 MILE. THEREFORE THE WINTER WEATHER ADVISORY IS CANCELLED. $$ AKZ155-271445- /O.CAN.PAFC.WC.Y.0002.000000T0000Z-150127T1800Z/ KUSKOKWIM DELTA- INCLUDING THE CITIES OF...BETHEL...HOOPER BAY...NUNIVAK ISLAND 443 AM AKST TUE JAN 27 2015 ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE WIND CHILL ADVISORY. TEMPERATURES HAVE WARMED THROUGH THE NIGHT...BRINGING WIND CHILLS WARMER THAN 40 DEGREES BELOW ZERO. THEREFORE...THE WIND CHILL ADVISORY IS CANCELLED. $$ AKZ161-271800- /O.CON.PAFC.WW.Y.0003.000000T0000Z-150127T1800Z/ BRISTOL BAY- INCLUDING THE CITIES OF...KING SALMON...DILLINGHAM...NAKNEK... PILOT POINT 443 AM AKST TUE JAN 27 2015 ...WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW REMAINS IN EFFECT UNTIL 9 AM AKST THIS MORNING NORTH AND WEST OF KING SALMON... * LOCATION...AREAS NORTH AND WEST OF KING SALMON INCLUDING DILLINGHAM AND KOLIGANEK. * REPORTS...6 INCHES OF SNOW ACCUMULATION HAS BEEN REPORTED IN DILLINGHAM THROUGH MONDAY EVENING. * SNOW...AN ADDITIONAL INCH OF SNOW ACCUMULATION IS EXPECTED...FOR A STORM TOTAL OF 5 TO 8 INCHES. * VISIBILITY...REDUCED TO ONE HALF MILE AT TIMES. * WIND...NORTHEAST 10 TO 20 MPH. * TIMING...SNOW WILL CONTINUE THROUGH MID MORNING...TAPERING TO SNOW SHOWERS THROUGH THE AFTERNOON. * IMPACTS...TRAVEL MAY BE DIFFICULT. VISIBILITIES WILL BE LIMITED IN FALLING AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS. && $$
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Anchorage, AK wrote its last area forecast discussion before this wind chill advisory went out at Jan 24, 3:10 PM AKST, 13 hours 49 minutes earlier.
Area forecast discussion, Jan 24, 3:10 PM AKST, 13 hours 49 minutes before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
310 PM AKST SAT JAN 24 2015
.ANALYSIS AND UPPER LEVELS...
A HIGH AMPLITUDE TROUGH IS PROGRESSING SLOWLY EASTWARD FROM SOUTHWEST
ALASKA INTO THE WESTERN GULF AND WESTERN PORTION OF SOUTHCENTRAL
ALASKA. THE TROUGH IS JUST BEGINNING TO SHOW SIGNS OF DEVELOPING A
NEGATIVE TILT...AS RISING HEIGHTS DOWNSTREAM OVER WESTERN CANADA
AND A STRENGTHENING UPPER JET BETWEEN THE TROUGH AND RIDGE CAUSE
THE TROUGH TO BEGIN TO LIFT NORTHEASTWARD. MOST OF THE ACCUMULATING
SNOW HAS ENDED FROM THE WESTERN KENAI TO ANCHORAGE AND MAT-SU.
RADAR DOES SHOW SOME WEAK RETURNS AS COLD AIR ADVECTION WITH THE
UPPER TROUGH MAINTAINS SOME VERY LOW LEVEL LIFT...RESULTING IN
VERY LIGHT SNOW OR FLURRIES. STRONG GAP WINDS HAVE DEVELOPED OVER
THE WESTERN GULF AND KODIAK ISLAND WITH THE ONSET OF COLD AIR
ADVECTION.
STRONG LIFT OUT AHEAD OF THE TROUGH COMBINED WITH UPSLOPE FLOW IS
PRODUCING MODERATE TO HEAVY PRECIPITATION OVER MUCH OF THE PRINCE
WILLIAM SOUND REGION...WITH MARGINALLY LIGHTER PRECIP OVER THE
COPPER RIVER BASIN. OF SPECIAL NOTE...PRECIPITATION STARTED THE
MORNING WITH ABOVE FREEZING TEMPERATURES AND RAIN AND SNOW. THE
INTENSITY OF THE PRECIPITATION HAS HELPED COOL THE COLUMN AND
CHANGE PRECIP TO ALL SNOW. THEREFORE...NOW EXPECT VALDEZ TO SEE A
GOOD DUMP OF SNOW OUT OF THIS STORM.
BEHIND THE TROUGH SOUTHWEST ALASKA HAS SETTLED INTO A TRUE ARCTIC
ARM MASS FOR THE FIRST TIME THIS WINTER. THE COLD SPOTTY THIS
MORNING APPEARS TO BE ANIAK WITH A TEMPERATURE OF 29 DEGREES BELOW
ZERO. UPSTREAM OF THIS AN UPPER LEVEL SHORTWAVE IS CROSSING THE
BERING SEA BRINGING SOME LIGHT SNOW TO THE REGION. MEANWHILE A
MATURE LOW OVER THE NORTHWEST PACIFIC IS TRACKING EASTWARD PUSHING
AN OCCLUDED FRONT NORTHWARD TOWARD THE ALEUTIANS. THE AIR MASS IN
PLACE RIGHT NOW IS COLD ENOUGH TO SUPPORT ALL SNOW AS
PRECIPITATION ARRIVES.
&&
.MODEL DISCUSSION...
AFTER A FEW DAYS OF DEALING WITH KEY DIFFERENCES IN MODEL GUIDANCE
THE LATEST SOLUTIONS ARE IN VERY GOOD AGREEMENT AS THINGS WIND
DOWN OVER SOUTHCENTRAL ALASKA TONIGHT INTO SUNDAY. ATTENTION
SHIFTS TO THE NORTH PACIFIC WHERE MINOR DIFFERENCES ARISE AS A
TROUGH PUSHES NORTHWARD INTO THE CENTRAL TO EASTERN BERING SEA
SUNDAY NIGHT AND MONDAY. THE BULK OF PRECIP WILL INITIALLY BE
FOCUSED OUT AHEAD OF A WARM OCCLUSION. AS THIS FRONT WEAKENS A
SERIES OF UPPER LEVEL WAVES MOVING THROUGH THE TROUGH WILL HELP
FOCUS PRECIPITATION...AND MODELS DO NOT AGREE ON STRENGTH OR
PLACEMENT OF THESE WAVES. WITH A DEEP ARCTIC AIR MASS IN PLACE
OUT AHEAD OF THE FRONT THERE WILL BE A THREAT FOR SEVERELY
REDUCED VISIBILITIES IN BLOWING SNOW FROM BRISTOL BAY TO THE
PRIBILOF ISLANDS...DEPENDING ON THE EXTENT AND INTENSITY OF THE
PRECIPITATION. FORECAST CONFIDENCE IS GENERALLY HIGH...THOUGH IT
DROPS SIGNIFICANTLY WITH DETAILS OUT WEST AS WE HEAD INTO EARLY
NEXT WEEK.
&&
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (DAYS 1 AND 2)...
AS THE UPPER TROUGH BEGINS TO LIFT NORTHEASTWARD THIS AFTERNOON
AND EVENING MODERATE TO HEAVY PRECIPITATION WILL CONTINUE FROM
EASTERN PRINCE WILLIAM SOUND TO THE PORTIONS OF THE COPPER RIVER
BASIN. THE PRIMARY SHORT-WAVE TROUGH WILL EXIT TO THE NORTHEAST
ON SUNDAY...BUT CYCLONIC FLOW WILL PERSIST ON THE SOUTH SIDE OF
AN UPPER LOW WHICH FORMS OVER INTERIOR ALASKA. THIS COMBINED WITH
COLD AIR ADVECTION WILL CAUSE SNOW SHOWERS TO LINGER IN THESE SAME
AREAS. MEANWHILE...COLD ADVECTION BEHIND THE TROUGH COMBINED WITH
UPPER LEVEL SUBSIDENCE WILL PRODUCE STRONG OUTFLOW WINDS ACROSS
THE REGION. WILL INCREASE WINDS IN THE SEWARD/RESURRECTION BAY AND
WHITTIER/PASSAGE CANAL AREAS WITH GOOD UPPER LEVEL SUPPORT AND THE
COLDEST AIR MASS OF THE ENTIRE WINTER MOVING IN.
TEMPERATURES WILL PLUMMET OVER THE NEXT 36 HOURS AS THE ARCTIC AIR
MASS SETTLES IN. WITH COLD ADVECTION CONTINUING THROUGH THE DAY
SUNDAY EXPECT TEMPERATURES TO HOLD STEADY OR CONTINUE TO FALL
DURING THE DAYTIME HOURS. THE COLD ADVECTION WILL LARGELY COME
TO AN END BY SUNDAY NIGHT ALLOWING WINDS TO DIE DOWN. THIS WILL
LIKELY BE THE COLDEST NIGHT FOR MUCH OF THE REGION. OF NOTE...WEST
ANCHORAGE (WHERE THE OFFICIAL CLIMATE STATION IS LOCATED) IS
EXPECTED TO OBSERVE THE FIRST SUB- ZERO TEMPERATURES SINCE
DECEMBER 2013.
&&
.SHORT TERM FORECAST SOUTHWEST ALASKA (DAYS 1 AND 2)...
IN THE WAKE OF THE UPPER TROUGH COLD ADVECTION WILL COME TO END
TONIGHT AND LOW LEVEL WINDS WILL CONTINUE TO SLACKEN. THUS...TONIGHT
WILL BE COLDER THAN FRIDAY NIGHT. A VERY GRADUAL MODERATION WILL
THEN BEGIN SUNDAY INTO MONDAY AS THE TROUGH OVER THE NORTH PACIFIC
LIFTS NORTHEASTWARD TOWARD SOUTHWEST ALASKA. THERE IS A TREND IN
THE GUIDANCE TOWARD MOVING PRECIP INTO BRISTOL BAY FASTER WITH
ARRIVAL SOMETIME ON MONDAY. PRESSURE GRADIENTS WILL TIGHTEN OUT
AHEAD OF A SURFACE OCCLUDED FRONT...SO WHENEVER SNOW DOES MOVE IN
THERE COULD BE SOME ISSUES WITH REDUCED VISIBILITIES IN BLOWING SNOW.
&&
.SHORT TERM FORECAST BERING SEA/ALEUTIANS (DAYS 1 AND 2)...
THE SHORT-WAVE BRINGING SNOW TO THE CENTRAL BERING WILL FLATTEN
OUT THIS AFTERNOON AND EVENING AS HEIGHTS RISE AHEAD OF THE PACIFIC
TROUGH. THUS...DON'T EXPECT ANY CLOUDS OR PRECIP TO SURVIVE BEYOND
THE EASTERN BERING SEA. THE PACIFIC TROUGH AND SURFACE STORM
SYSTEM WILL GRADUALLY PUSH PRECIP AND WARMER AIR NORTHWARD ACROSS
THE ALEUTIANS AND SOUTHERN ALASKA PENINSULA INTO THE SOUTHERN
BERING SEA. THE PRIBILOF ISLANDS WILL REMAIN SOLIDLY ON THE COLD
SIDE OF THE SURFACE OCCLUDED FRONT. THEREFORE...IF AND WHEN STEADY
SNOW REACHES THE PRIBILOFS BLIZZARD CONDITIONS ARE LIKELY. WILL
ISSUE A BLIZZARD WATCH BEGINNING MONDAY WHEN MOST MODELS INDICATE
A HIGHER POTENTIAL FOR STEADY SNOWFALL.
&&
.LONG TERM FORECAST (DAYS 3 THROUGH 7)...
THERE IS AN UPPER LEVEL BLOCKING PATTERN SETTING UP WITH AN
AMPLIFIED POSITIVE TILTED RIDGE BUILDING INTO THE WESTERN
ALEUTIANS/BERING SEA BY TUESDAY. THIS RIDGE WILL EXTEND THROUGH
THE WESTERN ALEUTIANS NORTHWARD INTO THE EASTERN SIBERIAN REGION.
IN THE SOUTHEAST ALASKA AREA...THERE IS ANOTHER AMPLIFIED RIDGE
BUILDING ALONG THE SOUTHEAST ALASKA COASTLINE. THIS RIDGE IS
EXTENDING INTO THE SOUTHCENTRAL AREA AND INTO THE BRISTOL BAY
REGION. THERE IS AN UPPER LEVEL CLOSED LOW BETWEEN THESE TWO
RIDGES LOCATED SOUTH OF THE CENTRAL/EASTERN ALEUTIANS IN THE NORTH
PACIFIC OCEAN. THE SOUTHWEST ALASKA AREA WILL HAVE OFFSHORE FLOW
WITH THE NORTHEASTERLY WINDS SETTING UP BY WEDNESDAY. THERE WILL
BE SCATTERED RAIN/SNOW SHOWERS ALONG THE SOUTHERN MAINLAND ALONG
THE EASTERN KENAI PENINSULA EXTENDING INTO KODIAK ISLAND. THE
SHORTWAVES WILL ROTATE AROUND THE COMPLEX LOW IN THE NORTH PACIFIC
AND PUSH THROUGH THE EASTERN ALEUTIANS. THE TEMPERATURES ALONG THE
CENTRAL TO EASTERN ALEUTIANS EXTENDING TO THE WESTERN GULF AND THE
COASTLINES WILL SEE A WARMING TREND. THIS WILL COINCIDE WITH THE
COMPLEX NORTH PACIFIC LOW AS IT GRADUALLY MOVES NORTH TOWARDS
KODIAK ISLAND BY WEDNESDAY WITH CONTINUED SOUTHERLY FLOW IN THE
GULF HEADING INTO THE WEEKEND.
&&
.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...BLIZZARD WATCH 195. SNOW ADVISORY 141.
MARINE...GALE WARNING 129 130 131 170 179.
HEAVY FRZ SPRAY 121 126 127 128 129 130 131 138
139 140 141 150 160 165 180 185.
FIRE WEATHER...NONE.
&&
SYNOPSIS AND MODEL DISCUSSION...SB
SOUTHCENTRAL ALASKA...SB
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...SB
LONG TERM...PDThe office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 25, 3:47 AM AKST | Gale Warning | AFC | 48 hr | |
| Jan 25, 3:47 AM AKST | Small Craft Advisory | AFC | 48 hr | |
| Jan 25, 3:47 AM AKST | Heavy Freezing Spray Warning | AFC | 48 hr | |
| Jan 25, 3:57 AM AKST | Gale Warning | AFC | 59 hr | |
| Jan 25, 3:59 AM AKST | Brisk Wind Advisory | AFC | 6 days | |
| Jan 25, 3:59 AM AKST | Gale Warning | AFC | 4 days | |
| Jan 25, 3:59 AM AKST | Small Craft Advisory | AFC | 48 hr | |
| Jan 25, 3:59 AM AKST | Heavy Freezing Spray Warning | AFC | 3 days | |
| Jan 25, 2:50 PM AKST | Small Craft Advisory | AFC | 24 hr | |
| Jan 25, 2:50 PM AKST | Heavy Freezing Spray Warning | AFC | 13 hr | |
| Jan 25, 2:53 PM AKST | Gale Warning | AFC | 48 hr |
Nearby
Wind Chill Advisories in Alaska, 2015Every wind chill advisory in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.