Alert archive / Alaska / High Wind Warnings in 2011
High Wind Warning 4, NWS Anchorage, AK
NWS Anchorage, AK issued this high wind warning at Jan 11, 2011, 5:12 AM AKST. It took effect at Jan 11, 2011, 6:00 PM AKST. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 11, 2011, 5:12 AM AKST (14:12 UTC)
- In effect from
- Jan 11, 2011, 6:00 PM AKST
- Expired
- Jan 13, 2011, 12:00 AM AKST
- In force
- 30 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted, in the capitals the NWS used until 2016.
489 WWAK71 PAFC 111412 NPWAER URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 512 AM AKST TUE JAN 11 2011 AKZ131-120315- /X.UPG.PAFC.HW.A.0002.110112T0600Z-110113T0100Z/ /X.NEW.PAFC.HW.W.0004.110112T0300Z-110113T0900Z/ NORTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS 512 AM AKST TUE JAN 11 2011 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT AKST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT AKST WEDNESDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. AN ALREADY SIGNIFICANT PRESSURE GRADIENT ALONG THE NORTH GULF COAST WILL INCREASE FURTHER THIS EVENING. WINDS IN VALDEZ AND THOMPSON PASS WILL INCREASE AND PRODUCE GUSTS OF 75 MPH THIS EVENING. WINDS SHOULD PEAK DURING THE DAY WEDNESDAY WITH GUSTS AROUND 80 MPH AND THEN SLOWLY DIMINISH WEDNESDAY NIGHT AS THE PRESSURE GRADIENT SLOWLY RELAXES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ101-112100- /X.EXT.PAFC.FG.Y.0002.000000T0000Z-110111T2100Z/ ANCHORAGE- INCLUDING THE CITIES OF...ANCHORAGE...EAGLE RIVER...INDIAN... EKLUTNA 512 AM AKST TUE JAN 11 2011 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON AKST TODAY... THE DENSE FOG ADVISORY IS NOW IN EFFECT UNTIL NOON AKST TODAY. DENSE FOG HAS INCREASED IN COVERAGE ACROSS THE ANCHORAGE BOWL EARLY THIS MORNING. FOG IS EXPECTED TO DISSIPATE BY NOON AS NORTH WINDS BEGIN TO INCREASE OVER THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN... USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. && $$
5 follow-up statements
209 WWAK71 PAFC 112058 NPWAER URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 1158 AM AKST TUE JAN 11 2011 AKZ101-112200- /X.CAN.PAFC.FG.Y.0002.000000T0000Z-110111T2100Z/ ANCHORAGE- INCLUDING THE CITIES OF...ANCHORAGE...EAGLE RIVER...INDIAN... EKLUTNA 1158 AM AKST TUE JAN 11 2011 ...DENSE FOG ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE DENSE FOG ADVISORY. $$ AKZ131-121000- /X.CON.PAFC.HW.W.0004.110112T0300Z-110113T0900Z/ NORTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS 1158 AM AKST TUE JAN 11 2011 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT AKST WEDNESDAY NIGHT... A HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT AKST WEDNESDAY NIGHT. AN ALREADY SIGNIFICANT PRESSURE GRADIENT ALONG THE NORTH GULF COAST WILL INCREASE FURTHER THIS EVENING. WINDS IN VALDEZ AND THOMPSON PASS WILL INCREASE AND PRODUCE GUSTS OF 75 MPH THIS EVENING. WINDS SHOULD PEAK DURING THE DAY WEDNESDAY WITH GUSTS AROUND 80 MPH AND THEN SLOWLY DIMINISH WEDNESDAY NIGHT AS THE PRESSURE GRADIENT SLOWLY RELAXES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ111-121000- /X.NEW.PAFC.HW.A.0003.110112T0900Z-110113T0900Z/ MATANUSKA VALLEY- INCLUDING THE CITIES OF...PALMER...WASILLA...SUTTON...CHICKALOON 1158 AM AKST TUE JAN 11 2011 ...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING. AN ALREADY SIGNIFICANT PRESSURE GRADIENT WILL TIGHTEN OVERNIGHT. WINDS OUT OF THE MATANUSKA VALLEY ARE EXPECTED TO INCREASE WITH POSSIBLE GUSTS TO 75 MPH LATE TONIGHT THROUGH WEDNESDAY EVENING. WINDS WILL SLOWLY DIMINISH WEDNESDAY NIGHT AS THE PRESSURE GRADIENT RELAXES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. PEOPLE ARE ENCOURAGED TO CLOSELY MONITOR THIS WEATHER SITUATION. PREPARATION FOR THIS POTENTIALLY DANGEROUS WEATHER EVENT SHOULD BEGIN NOW. && $$ AKZ135-121000- /X.NEW.PAFC.HW.A.0003.110112T0900Z-110113T0900Z/ SOUTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITY OF...CORDOVA 1158 AM AKST TUE JAN 11 2011 ...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING THROUGH THE COPPER RIVER DELTA... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING. AN ALREADY SIGNIFICANT PRESSURE GRADIENT ALONG THE NORTH GULF COAST WILL INCREASE LATER TONIGHT. WINDS THROUGH THE COPPER RIVER DELTA ARE EXPECTED TO INCREASE WITH POSSIBLE GUSTS TO 80 MPH LATE TONIGHT THROUGH WEDNESDAY EVENING. WINDS WILL SLOWLY DIMINISH WEDNESDAY NIGHT AS THE PRESSURE GRADIENT RELAXES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS HIGH WIND EVENT. PEOPLE ARE ENCOURAGED TO CLOSELY MONITOR THIS WEATHER SITUATION. PREPARATION FOR THIS POTENTIALLY DANGEROUS WEATHER EVENT SHOULD BEGIN NOW. && $$
401 WWAK71 PAFC 120102 NPWAER URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 402 PM AKST TUE JAN 11 2011 AKZ111-121515- /X.UPG.PAFC.HW.A.0003.110112T0900Z-110113T0900Z/ /X.EXB.PAFC.HW.W.0004.110112T0900Z-110113T0900Z/ MATANUSKA VALLEY- INCLUDING THE CITIES OF...PALMER...WASILLA...SUTTON...CHICKALOON 402 PM AKST TUE JAN 11 2011 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT AKST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT AKST WEDNESDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE OVER THE GULF WILL BRING DANGEROUS WINDS TO THE MATANUSKA VALLEY TONIGHT. NORTHEAST WIND 35 TO 50 MPH WITH GUSTS TO 65 MPH THIS EVENING WILL INCREASE WITH GUSTS REACHING 75 MPH AFTER MIDNIGHT. THESE WINDS ARE EXPECTED TO CONTINUE UNTIL WEDNESDAY MIDNIGHT BEFORE DIMINISHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ135-121515- /X.UPG.PAFC.HW.A.0003.110112T0900Z-110113T0900Z/ /X.EXB.PAFC.HW.W.0004.110112T0900Z-110113T0900Z/ SOUTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITY OF...CORDOVA 402 PM AKST TUE JAN 11 2011 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT AKST WEDNESDAY NIGHT FOR THE COPPER RIVER DELTA... THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT AKST WEDNESDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF WILL BRING DANGEROUS WINDS THROUGH THE COPPER RIVER DELTA TONIGHT. NORTH WINDS 40 TO 55 MPH WILL GUST TO 75 MPH AFTER MIDNIGHT. THESE WINDS WILL CONTINUE THROUGH WEDNESDAY MIDNIGHT BEFORE SLOWLY DIMINISHING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ131-121515- /X.CON.PAFC.HW.W.0004.110112T0300Z-110113T0900Z/ NORTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS 402 PM AKST TUE JAN 11 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST WEDNESDAY NIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST WEDNESDAY NIGHT. HIGH PRESSURE OVER THE INTERIOR AND LOW PRESSURE IN THE GULF WILL BRING DANGEROUS WINDS TO NORTHEAST PRINCE WILLIAM SOUND BEGINNING THIS EVENING. NORTHEAST WIND 30 TO 45 MPH WITH GUSTS TO 75 MPH ARE EXPECTED THIS EVENING AND WILL PERSIST THROUGH WEDNESDAY NIGHT AT MIDNIGHT. WINDS ARE THEN EXPECTED TO SLOWLY DIMINISH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$
860 WWAK71 PAFC 121329 NPWAER URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 429 AM AKST WED JAN 12 2011 AKZ111-130900- /X.CON.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ MATANUSKA VALLEY- INCLUDING THE CITIES OF...PALMER...WASILLA...SUTTON...CHICKALOON 429 AM AKST WED JAN 12 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF OF ALASKA WILL CONTINUE TO BRING HIGH WINDS THROUGH THE MATANUSKA VALLEY. NORTHEAST WINDS 35 TO 50 MPH WITH GUSTS TO 75 MPH WILL CONTINUE TODAY THROUGH THIS EVENING AND THEN SLOWLY DIMINISH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ131-130900- /X.CON.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ NORTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS 429 AM AKST WED JAN 12 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF OF ALASKA WILL CONTINUE TO BRING HIGH WINDS THROUGH THOMPSON PASS AND INTO VALDEZ. NORTHEAST WIND 40 TO 55 MPH WITH GUSTS TO 75 MPH WILL CONTINUE TODAY THROUGH THIS EVENING AND THEN SLOWLY DIMINISH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ135-130900- /X.CON.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ SOUTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITY OF...CORDOVA 429 AM AKST WED JAN 12 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT FOR THE COPPER RIVER DELTA... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT FOR THE COPPER RIVER DELTA. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF OF ALASKA WILL CONTINUE TO BRING HIGH WINDS THROUGH THE COPPER RIVER DELTA TODAY AND THIS EVENING. NORTH WINDS 55 TO 75 MPH WILL CONTINUE THROUGH THE EVENING AND THEN SLOWLY DIMINISH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$
231 WWAK71 PAFC 130102 NPWAER URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 402 PM AKST WED JAN 12 2011 AKZ111-130900- /X.CON.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ MATANUSKA VALLEY- INCLUDING THE CITIES OF...PALMER...WASILLA...SUTTON...CHICKALOON 402 PM AKST WED JAN 12 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF OF ALASKA WILL CONTINUE TO BRING HIGH WINDS THROUGH THE MATANUSKA VALLEY. NORTHEAST WINDS 30 TO 45 MPH WITH GUSTS TO 75 MPH WILL CONTINUE THROUGH THIS EVENING AND THEN SLOWLY DIMINISH AFTER MIDNIGHT. WINDS WILL INCREASE AGAIN SLIGHTLY DURING THE DAY THURSDAY BUT ARE NOT EXPECTED TO REACH WARNING LEVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ131-130900- /X.CON.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ NORTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS 402 PM AKST WED JAN 12 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF OF ALASKA WILL CONTINUE TO BRING HIGH WINDS THROUGH THOMPSON PASS AND INTO VALDEZ. NORTHEAST WIND 25 TO 50 MPH WITH GUSTS TO 75 MPH WILL CONTINUE THROUGH THIS EVENING AND THEN SLOWLY DIMINISH AFTER MIDNIGHT. WINDS WILL INCREASE AGAIN SLIGHTLY DURING THE DAY THURSDAY BUT ARE NOT EXPECTED TO REACH WARNING LEVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$ AKZ135-130900- /X.CON.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ SOUTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITY OF...CORDOVA 402 PM AKST WED JAN 12 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT FOR THE COPPER RIVER DELTA... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKST TONIGHT. HIGH PRESSURE OVER THE COPPER RIVER BASIN AND LOW PRESSURE IN THE GULF OF ALASKA WILL CONTINUE TO BRING HIGH WINDS THROUGH THE COPPER RIVER DELTA TODAY AND THIS EVENING. NORTH WINDS 55 TO 75 MPH WILL CONTINUE THROUGH THE EVENING AND THEN SLOWLY DIMINISH AFTER MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND OR DAMAGED BY THE WIND. && $$
829 WWAK71 PAFC 130910 NPWAER URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ANCHORAGE AK 1210 AM AKST THU JAN 13 2011 AKZ111-131-135-131015- /X.EXP.PAFC.HW.W.0004.000000T0000Z-110113T0900Z/ MATANUSKA VALLEY-NORTHEAST PRINCE WILLIAM SOUND- SOUTHEAST PRINCE WILLIAM SOUND- INCLUDING THE CITIES OF...PALMER...WASILLA...SUTTON... CHICKALOON...VALDEZ...THOMPSON PASS...CORDOVA 1210 AM AKST THU JAN 13 2011 ...HIGH WIND WARNING HAS EXPIRED... THE HIGH WIND WARNINGS FOR THE MATANUSKA VALLEY...SOUTHEAST PRINCE WILLIAM SOUND...AND NORTHEAST PRINCE WILLIAM SOUND ARE NO LONGER IN EFFECT. WIND SPEEDS HAVE DIMINISHED TO LESS THAN 75 MPH. NORTHEAST WINDS GUSTING UP TO 55 MPH ARE STILL POSSIBLE THROUGH CHANNELED AREAS TODAY AND TONIGHT. $$
What forecasters said that day
The local office's own words before this high wind warning 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 high wind warning went out at Jan 10, 12:40 PM AKST, 16 hours 32 minutes earlier.
Area forecast discussion, Jan 10, 12:40 PM AKST, 16 hours 32 minutes before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
1240 PM AKST MON JAN 10 2011
.ANALYSIS AND UPPER LEVELS...VERY STRONG UPPER RIDGE IS NOW CENTERED
OVER NORTHWEST ALASKA. WATER VAPOR IMAGERY SHOWS THE FIRST (OF WHAT
WILL BE A SERIES OF UPPER SHORT-WAVES TO MOVE THROUGH SOUTHCENTRAL
ALASKA THE NEXT FEW DAYS) DROPPING SOUTHWARD INTO THE NORTHERN
YUKON AND NORTHEAST CORNER OF ALASKA. ARCTIC AIR WILL ACCOMPANY
THIS SHORT-WAVE AND LEAD TO A CHANGE IN WEATHER ACROSS ALASKA.
RIGHT NOW CONDITIONS REMAIN CALM ACROSS THE SOUTHERN MAINLAND AND
GULF WITH JUST A FEW ISOLATED AREAS OF FOG UNDERNEATH SOME VERY
STEEP SURFACE BASED INVERSIONS. MOST OF ANCHORAGE CLEARED OUT
AGAIN THIS MORNING...BUT AS WAS THE CASE YESTERDAY EXPECT AREAS
OF FOG TO RE-FORM AND REMAIN IN THE VICINITY UNTIL THE COLDER AIR
AND WINDS ARRIVE LATE TONIGHT.
THE STRENGTHENING RIDGE HAS PUSHED THE SOUTHERLY JET OVER THE
BERING SEA WESTWARD. IT NOW EXTENDS FROM THE NORTH CENTRAL
PACIFIC WEST-NORTHWEST ACROSS THE CENTRAL ALEUTIANS AND ON UP
TO THE KAMCHATKA PENINSULA. AT THE SURFACE A VERY TIGHT PRESSURE
GRADIENT REMAINS PRETTY MUCH IN THE AREA RIGHT UNDERNEATH THE
UPPER JET. IR SATELLITE IMAGERY SHOWS A NORTH PACIFIC LOW TRACKING
TOWARD CENTRAL ALEUTIANS. IT IS SHOWING SIGNS OF WEAKENING...BUT
WILL STILL TIGHTEN UP THE PRESSURE GRADIENT FROM ATKA TO DUTCH
HARBOR AS IT TRACKS TOWARD ADAK. A MORE SIGNIFICANT LOW IS
DEVELOPING TO THE SOUTHWEST WITH SUPPORT FROM A STRONG WESTERLY
JET AND ARCTIC AIR FEEDING INTO THE SYSTEM. THIS LOW IS TRACKING
NORTHEASTWARD BUT WILL SOON BEGIN TO CURVE NORTHWARD AND EVENTUALLY
NORTHWESTWARD ALONG THE WESTERN ALEUTIANS AS IT ROUNDS THE UPPER
TROUGH AXIS. THIS SYSTEM WILL PRODUCE SOLID STORM FORCE WINDS
NORTH AND EAST OF THE TRACK FROM THE VICINITY OF ADAK AND UP
ACROSS THE WESTERN BERING SEA.
.MODEL DISCUSSION...MODELS REMAIN IN GOOD AGREEMENT WITH SYNOPTIC
SCALE FEATURES AND FORECAST CONFIDENCE IS ABOVE NORMAL. THERE ARE
SOME DIFFERENCES IN TRACK OF SYSTEMS ALONG AND TO THE SOUTH OF THE
ALEUTIANS. PLAN TO STICK WITH THE GFS WHICH HAS BEEN PERFORMING
BEST AS OF LATE.
.SHORT TERM FORECAST...
SOUTHCENTRAL...UPPER SHORT-WAVE OVER THE YUKON WILL CROSS
SOUTHCENTRAL TONIGHT AND MOVE INTO THE GULF TUESDAY MORNING WITH
ARCTIC AIR ADVECTING IN BEHIND IT. MEANWHILE THE SURFACE PRESSURE
GRADIENT WILL TIGHTEN AS PRESSURE RISES OVER INTERIOR ALASKA AND
FALL OVER THE GULF. THE COLD AIR ADVECTION COMBINED WITH TIGHT
PRESSURE GRADIENT WILL KICK UP WINDS ACROSS THE REGION...ESPECIALLY
FOR CHANNELED AREAS SUCH AS THE MATANUSKA VALLEY AND VALDEZ/THOMPSON
PASS. ANY REMAINING FOG WILL RAPIDLY DISSIPATE AS THE WINDS ARRIVE.
ANOTHER UPPER WAVE WILL MOVE THROUGH TUESDAY NIGHT AND WEDNESDAY
BRINGING ANOTHER SURGE OF EVEN COLDER AIR WHICH MEANS WINDS WILL
BE STRONGER. PLAN TO ISSUE A HIGH WIND WATCH FOR THE VALDEZ ZONE
WITH THE AFTERNOON FORECAST PACKAGE. DON'T HAVE THE CONFIDENCE TO
ISSUE A WATCH AT THIS TIME...BUT WILL ALSO NEED TO KEEP AN EYE
ON WARNING LEVEL WIND POTENTIAL IN THE MATANUSKA VALLEY. A MUCH
STRONGER SHORT-WAVE LOOKS LIKE IT WILL MOVE THROUGH THURSDAY.
HOWEVER...THERE WON'T MUCH ADDITIONAL COLD ADVECTION WITH THAT
ONE...SO IMPACT ON WINDS LIKELY WON'T BE THAT SIGNIFICANT. IN
ADDITION TO ALL THE WINDS...TEMPERATURES WILL GRADUALLY FALL AS
WE HEAD THROUGH THE WEEK.
SOUTHWEST ALASKA...UPPER LEVEL SHORT-WAVES WILL PASS MOSTLY TO
THE EAST OF SOUTHWEST ALASKA THROUGH WEDNESDAY NIGHT AND SURFACE
PRESSURE GRADIENT WON'T BE NEARLY AS TIGHT AS OVER SOUTHCENTRAL.
THERE WILL STILL BE SOME COLD AIR ADVECTION WHICH WILL CONTRIBUTE
TO LOCALIZED GUSTY WINDS...ESPECIALLY ACROSS THE KUSKOKWIM DELTA.
THE SHORT-WAVE ON THURSDAY LOOKS LIKE IT WILL TRACK ACROSS SOUTHWEST
ALASKA SO MAY SEE SOME STRONGER COLD AIR ADVECTION AND WIND AT
THAT POINT.
BERING SEA/ALEUTIANS...THE UPPER RIDGE WILL RETROGRADE WESTWARD THE
NEXT COUPLE DAYS PUSHING THE STORM TRACK OFF TO THE SOUTH AND WEST.
THERE WILL BE TWO MORE LOWS WHICH WILL AFFECT THE ALEUTIANS AND
BERING SEA...ONE POWERFUL STORM PASSING BY TONIGHT AND THEN A
WEAKER STORM PASSING SOUTH OF THE ALEUTIANS WEDNESDAY. AFTER THAT
CONDITIONS WILL CALM DOWN A BIT FOR AT LEAST THE REST OF THE WEEK.
.LONG TERM FORECAST...UPPER RIDGE OVER THE ARCTIC WILL GRADUALLY
WEAKEN LATE THIS WEEK THROUGH EARLY NEXT WEEK. THERE IS POOR MODEL
RUN-TO-RUN CONSISTENCY IN THIS TIME FRAME WITH HANDLING OF ENERGY
MOVING UNDERNEATH THIS RIDGE ACROSS THE SOUTHERN MAINLAND/GULF
OVER TO THE BERING SEA. CHANCES ARE THOUGH THAT MOSTLY DRY AND
COLD CONDITIONS WILL PERSIST.
.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND WATCH ZONE 131.
MARINE...STORM WARNING...127 170 172 175.
GALE WARNING...120 121 126 128 130 132 138 140 150 155
171 176 179 185.
FIRE WEATHER...NONE.
SEB JAN 11The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 10, 4:00 PM AKST | Gale Warning | AFC | 4 days | |
| Jan 10, 4:00 PM AKST | Gale Warning | AFC | 24 hr | |
| Jan 10, 4:00 PM AKST | Small Craft Advisory | AFC | 12 hr | |
| Jan 10, 4:02 PM AKST | High Wind Watch | AFC | 13 hr | |
| Jan 10, 9:27 PM AKST | Dense Fog Advisory | AFC | 15 hr | |
| Jan 11, 4:00 AM AKST | Gale Warning | AFC | 3 days | |
| Jan 11, 4:00 AM AKST | Small Craft Advisory | AFC | 4 days | |
| Jan 11, 4:00 AM AKST | Small Craft Advisory | AFC | 60 hr | |
| Jan 11, 4:00 AM AKST | Heavy Freezing Spray Warning | AFC | 4 days | |
| Jan 11, 11:58 AM AKST | High Wind Watch | AFC | 4 hr |
Nearby
High Wind Warnings in Alaska, 2011Every high wind warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.