Alert archive / Alaska / Gale Warnings in 2012
Gale Warning 824, NWS Anchorage, AK
NWS Anchorage, AK issued this gale warning at Dec 25, 2012, 4:00 AM AKST. It was in force for 48 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
- Dec 25, 2012, 4:00 AM AKST (13:00 UTC)
- Expired
- Dec 27, 2012, 4:00 AM AKST
- In force
- 48 hr
- Issued by
- NWS Anchorage, AK
The text
As transmitted, in the capitals the NWS used until 2016.
674 FZAK62 PAFC 251215 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 AM AKST TUE DEC 25 2012 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-260300- 400 AM AKST TUE DEC 25 2012 .SYNOPSIS FOR CENTRAL BERING SEA... A 983 MB LOW NEAR 53N 170W WILL REMAIN STATIONARY AND DISSIPATE THIS AFTERNOON. A NORTH PACIFIC LOW WILL MOVE TO 49N 172E WED AFTERNOON AT 971 MB THEN MOVE TO 51N 173E WED NIGHT AT 965 MB. A NORTH PACIFIC LOW WILL MOVE TO 50N 164W TONIGHT AT 960 MB AND THEN MOVE TO 55N 153W WED NIGHT AT 969 MB. $$ PKZ411-260300- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 AM AKST TUE DEC 25 2012 .TODAY...SE WIND 25 KT. S OF 56N...SW WIND 25 KT. SEAS 14 FT. SNOW. .TONIGHT...S WIND 20 KT. S OF 56N...SW WIND 15 KT. SEAS 11 FT. .WED...SE WIND 20 KT. SEAS 10 FT. SNOW. .WED NIGHT...E WIND 35 KT. SEAS 13 FT. .THU...NE WIND 40 KT. SEAS 18 FT. .FRI...NE WIND 35 KT. SEAS 19 FT. .SAT...N WIND 30 KT. SEAS 15 FT. $$ PKZ412-260300- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 AM AKST TUE DEC 25 2012 .TODAY...E WIND 20 KT. SEAS 11 FT. FREEZING SPRAY N OF 58N IN THE MORNING. .TONIGHT...E WIND 25 KT. SEAS 9 FT. FREEZING SPRAY N OF 58N. .WED...NE WIND 25 KT. SEAS 9 FT. FREEZING SPRAY E OF 176W. .WED NIGHT...NE WIND 25 KT. SEAS 9 FT. .THU...NE WIND 35 KT. SEAS 17 FT. .FRI...E WIND 30 KT. SEAS 17 FT. .SAT...E WIND 25 KT. SEAS 11 FT. $$ PKZ413-260300- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 AM AKST TUE DEC 25 2012 .TODAY...E WIND 20 KT. SEAS 10 FT. .TONIGHT AND WED...N WIND 15 TO 25 KT. SEAS 10 FT. .WED NIGHT...E WIND 35 KT. SEAS 10 FT. .THU...E WIND 35 KT. SEAS 14 FT. .FRI...SE WIND 25 KT. SEAS 15 FT. .SAT...E WIND 20 KT. SEAS 11 FT. $$ PKZ414-260300- BERING SEA OFFSHORE EAST OF 171W 400 AM AKST TUE DEC 25 2012 ...GALE WARNING WEDNESDAY... ...HEAVY FREEZING SPRAY WARNING WEDNESDAY... .TODAY...E WIND 20 KT. SEAS 7 FT. .TONIGHT...NE WIND 30 KT. SEAS 9 FT. FREEZING SPRAY N OF 57N. .WED...NE WIND 35 KT. SEAS 12 FT. SNOW. HEAVY FREEZING SPRAY NEAR THE ICE EDGE. .WED NIGHT...N WIND 30 KT. SEAS 12 FT. .THU...E WIND 20 KT. SEAS 8 FT. .FRI...SE WIND 20 KT. SEAS 10 FT. .SAT...E WIND 25 KT. SEAS 10 FT. $$
4 follow-up statements
407 FZAK62 PAFC 260008 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 PM AKST TUE DEC 25 2012 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-261500- 400 PM AKST TUE DEC 25 2012 .SYNOPSIS FOR CENTRAL BERING SEA... A 967 MB LOW NEAR 45N 172W MOVES TO NEAR 50N 164W AT 961 MB TUE NIGHT...THEN MOVES INTO THE WESTERN GULF THU MORNING AT 976 MB. A 976 MB LOW NEAR 53N 168E REMAINS STATIONARY THROUGH WED NIGHT AS IT WEAKENS TO 985 MB...THEN DISSIPATES THU MORNING. A 979 MB NORTHWEST PACIFIC LOW STRENGTHENS TO 963 MB AS IT MOVES TO NEAR 50N 179W THU AFTERNOON. $$ PKZ411-261500- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 PM AKST TUE DEC 25 2012 ...GALE WARNING WEDNESDAY NIGHT... .TONIGHT...S WIND 25 KT. SEAS 12 FT. SNOW. .WED...S WIND 25 KT. SEAS 12 FT. SNOW. .WED NIGHT...SE WIND 25 KT BECOMING E 35 KT AFTER MIDNIGHT. SEAS 10 FT. .THU...NE WIND 40 KT. SEAS 16 FT. .THU NIGHT...N WIND 35 KT. SEAS 18 FT. .FRI...N WIND 40 KT. SEAS 19 FT. .SAT...N WIND 30 KT. SEAS 15 FT. .SUN...NE WIND 25 KT. SEAS 11 FT. $$ PKZ412-261500- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 PM AKST TUE DEC 25 2012 .TONIGHT...E WIND 25 KT. SEAS 10 FT. FREEZING SPRAY. .WED...NE WIND 20 KT. SEAS 8 FT. FREEZING SPRAY. .WED NIGHT...NE WIND 25 KT. SEAS 9 FT. FREEZING SPRAY. .THU...NE WIND 30 KT. SEAS 10 FT. .THU NIGHT...NE WIND 35 KT. SEAS 15 FT. .FRI...E WIND 30 KT. SEAS 15 FT. .SAT...E WIND 25 KT. SEAS 11 FT. .SUN...NE WIND 25 KT. SEAS 11 FT. $$ PKZ413-261500- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 PM AKST TUE DEC 25 2012 .TONIGHT...E OF 175W...NE WIND 25 KT. W OF 175W...W WIND 25 KT. SEAS 11 FT. SNOW. .WED...E OF 175W...N WIND 25 KT. W OF 175W...VARIABLE WIND 20 KT. SEAS 9 FT. .WED NIGHT...NE WIND 15 KT BECOMING E 30 KT AFTER MIDNIGHT. SEAS 10 FT. .THU...NE WIND 40 KT. SEAS 13 FT. .THU NIGHT...NE WIND 35 KT. SEAS 15 FT. .FRI...SE WIND 30 KT. SEAS 14 FT. .SAT...E WIND 20 KT. SEAS 11 FT. .SUN...N WIND 25 KT. SEAS 14 FT. $$ PKZ414-261500- BERING SEA OFFSHORE EAST OF 171W 400 PM AKST TUE DEC 25 2012 ...GALE WARNING WEDNESDAY AND WEDNESDAY NIGHT... ...HEAVY FREEZING SPRAY WARNING WEDNESDAY AND WEDNESDAY NIGHT... .TONIGHT...NE WIND 30 KT. SEAS 9 FT. FREEZING SPRAY. .WED...NE WIND 40 KT. SEAS 13 FT. SNOW. HEAVY FREEZING SPRAY. .WED NIGHT...N WIND 35 KT. SEAS 13 FT. SNOW. HEAVY FREEZING SPRAY. .THU...NW WIND 25 KT. SEAS 9 FT. .THU NIGHT...SE WIND 25 KT. SEAS 6 FT. .FRI...SE WIND 30 KT. SEAS 12 FT. .SAT...E WIND 25 KT. SEAS 10 FT. .SUN...NE WIND 25 KT. SEAS 10 FT. $$ JM
235 FZAK62 PAFC 261255 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 AM AKST WED DEC 26 2012 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-270300- 400 AM AKST WED DEC 26 2012 .SYNOPSIS FOR CENTRAL BERING SEA... A 960 MB LOW NEAR 50N 165W WILL WEAKEN TO 973 MB NEAR 55N 153W LATE WED NIGHT AND MOVE INTO THE WESTERN GULF THU MORNING. A NORTH PACIFIC LOW WILL STRENGTHEN TO 962 MB NEAR 50N 172E LATE WED NIGHT AND SLOWLY MOVE TO 52N 179W AT SAME STRENGTH BY LATE THU NIGHT. $$ PKZ411-270300- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 AM AKST WED DEC 26 2012 ...GALE WARNING TONIGHT AND THURSDAY... .TODAY...S WIND 15 TO 25 KT. SEAS 11 FT. SNOW. FREEZING SPRAY. .TONIGHT...E WIND 25 TO 35 KT. SEAS 11 FT. SNOW SHOWERS. FREEZING SPRAY. .THU...E WIND 30 TO 40 KT. SEAS 21 FT. FREEZING SPRAY. .THU NIGHT...NE WIND 40 KT. SEAS 22 FT. .FRI...N WIND 40 KT. SEAS 21 FT. .SAT...N WIND 30 KT. SEAS 16 FT. .SUN...NW WIND 30 KT. SEAS 15 FT. $$ PKZ412-270300- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 AM AKST WED DEC 26 2012 ...HEAVY FREEZING SPRAY WARNING TONIGHT AND THURSDAY... .TODAY...NE WIND 15 TO 25 KT. SEAS 9 FT. FREEZING SPRAY. .TONIGHT...NE WIND 15 TO 25 KT. SEAS 9 FT. HEAVY FREEZING SPRAY E OF 173W. .THU...NE WIND 20 TO 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY E OF 173W. .THU NIGHT...NE WIND 35 KT. SEAS 14 FT. .FRI...E WIND 30 KT. SEAS 14 FT. .SAT...E WIND 25 KT. SEAS 10 FT. .SUN...N WIND 25 KT. SEAS 11 FT. $$ PKZ413-270300- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 AM AKST WED DEC 26 2012 ...GALE WARNING THURSDAY... .TODAY...N WIND 15 TO 25 KT. SEAS 10 FT. .TONIGHT...NE WIND 20 KT BECOMING E 30 KT AFTER MIDNIGHT. SEAS 11 FT. .THU...E WIND 30 TO 40 KT. SEAS 16 FT. FREEZING SPRAY. .THU NIGHT...NE WIND 35 KT. SEAS 15 FT. .FRI...SE WIND 30 KT. SEAS 13 FT. .SAT...W WIND 25 KT. SEAS 12 FT. .SUN...NW WIND 30 KT. SEAS 13 FT. $$ PKZ414-270300- BERING SEA OFFSHORE EAST OF 171W 400 AM AKST WED DEC 26 2012 ...GALE WARNING THROUGH TONIGHT... ...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY... .TODAY...NE WIND 40 KT. SEAS 15 FT. SNOW. HEAVY FREEZING SPRAY. .TONIGHT...N WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS 15 FT. SNOW. HEAVY FREEZING SPRAY. .THU...N WIND 25 KT BECOMING VARIABLE 15 KT IN THE AFTERNOON. SEAS 9 FT. PATCHY FOG. SNOW. HEAVY FREEZING SPRAY. .THU NIGHT...SE WIND 25 KT. SEAS 6 FT. .FRI...SE WIND 30 KT. SEAS 12 FT. .SAT...SE WIND 25 KT. SEAS 10 FT. .SUN...NE WIND 25 KT. SEAS 10 FT. $$
078 FZAK62 PAFC 270014 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 PM AKST WED DEC 26 2012 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-271500- 400 PM AKST WED DEC 26 2012 .SYNOPSIS FOR CENTRAL BERING SEA... A 964 MB LOW NEAR 53N 158W WEAKENS TO 988 MB IN THE WESTERN GULF THU EVENING. A 972 MB LOW NEAR 49N 172E MOVES NEAR 50N 178E AS IT STRENGTHENS TO 962 MB...THEN MOVES TO 52N 177W AT 964 MB FRI AFTERNOON. A 979 MB LOW DEVELOPS NEAR 58N 162W THU MORNING AND MOVES TO 57N 180 FRI AFTERNOON WHILE STRENGTHENING TO 969 MB. $$ PKZ411-271500- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 PM AKST WED DEC 26 2012 ...STORM WARNING THURSDAY... .TONIGHT...SE WIND 30 KT BECOMING E 35 TO 45 KT AFTER MIDNIGHT. SEAS 12 TO 17 FT. SNOW SHOWERS. .THU...E WIND 50 KT. SEAS 18 TO 22 FT. FREEZING SPRAY N OF 55N. .THU NIGHT...NE WIND 40 KT. SEAS 22 FT. SNOW. FREEZING SPRAY. .FRI AND FRI NIGHT...N WIND 40 KT. SEAS 20 FT. .SAT...N WIND 35 KT. SEAS 15 FT. .SUN...NW WIND 30 KT. SEAS 15 FT. .MON...E WIND 25 KT. SEAS 9 FT. $$ PKZ412-271500- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 PM AKST WED DEC 26 2012 ...GALE WARNING THURSDAY AND THURSDAY NIGHT... .TONIGHT...NE WIND 25 KT. SEAS 9 FT. FREEZING SPRAY. .THU AND THU NIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 14 FT. FREEZING SPRAY. .FRI...E WIND 30 KT. SEAS 13 FT. .FRI NIGHT...E WIND 20 KT. SEAS 11 FT. .SAT...NE WIND 20 KT. SEAS 9 FT. .SUN...N WIND 25 KT. SEAS 11 FT. .MON...NE WIND 20 KT. SEAS 10 FT. $$ PKZ413-271500- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 PM AKST WED DEC 26 2012 ...GALE WARNING THROUGH THURSDAY NIGHT... .TONIGHT...W OF 175W...E WIND 20 KT INCREASING TO 40 KT AFTER MIDNIGHT. E OF 175W...N WIND 25 KT BECOMING E 20 KT AFTER MIDNIGHT. SEAS 11 FT. .THU...E WIND 45 KT. SEAS 12 TO 16 FT. .THU NIGHT...NE WIND 35 KT. SEAS 16 FT. SNOW AND RAIN. .FRI...E WIND 30 KT. SEAS 14 FT. .FRI NIGHT AND SAT...E WIND 25 KT. SEAS 12 FT. .SUN...NW WIND 30 KT. SEAS 13 FT. .MON...S WIND 20 KT. SEAS 13 FT. $$ PKZ414-271500- BERING SEA OFFSHORE EAST OF 171W 400 PM AKST WED DEC 26 2012 ...GALE WARNING TONIGHT... ...HEAVY FREEZING SPRAY WARNING THROUGH THURSDAY... .TONIGHT...N WIND 40 KT DIMINISHING TO 30 KT TOWARDS MORNING. SEAS 14 FT. SNOW. HEAVY FREEZING SPRAY. .THU...N WIND 30 KT BECOMING NW 20 KT IN THE AFTERNOON. SEAS 10 FT. SNOW. HEAVY FREEZING SPRAY. .THU NIGHT...VARIABLE WIND 15 KT BECOMING S 25 KT AFTER MIDNIGHT. SEAS 7 FT. .FRI...SE WIND 30 KT. SEAS 9 FT. .FRI NIGHT...NE WIND 20 KT. SEAS 8 FT. .SAT...S WIND 25 KT. SEAS 7 FT. .SUN...NE WIND 25 KT. SEAS 10 FT. .MON...NE WIND 15 KT. SEAS 8 FT. $$ JM
952 FZAK62 PAFC 271233 OFFALU OFFSHORE WATERS FORECAST NATIONAL WEATHER SERVICE ANCHORAGE AK 400 AM AKST THU DEC 27 2012 OFFSHORE WATERS FORECAST FOR THE BERING SEA WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION EXPECTED. SEA FORECASTS REPRESENT AN AVERAGE OF THE HIGHEST ONE-THIRD OF THE COMBINED WIND WAVE AND SWELL HEIGHT. PKZ499-280300- 400 AM AKST THU DEC 27 2012 .SYNOPSIS FOR CENTRAL BERING SEA... A 972 MB LOW NEAR 55N 155W WILL WEAKEN AND MOVE INTO THE WESTERN GULF BY THU AFTERNOON. A 965 MB COMPLEX LOW NEAR 50N 175E WILL SLOWLY MOVE TO 51N 174W AT SAME STRENGTH BY LATE FRI NIGHT. A 970 MB LOW WILL FORM NEAR 53N 161W AND STRENGTHEN TO 965 MB NEAR 58N 163W LATE FRI NIGHT. $$ PKZ411-280300- BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL DATELINE 400 AM AKST THU DEC 27 2012 ...STORM WARNING TODAY... ...HEAVY FREEZING SPRAY WARNING TONIGHT AND FRIDAY... .TODAY...E WIND 40 TO 50 KT. SEAS 14 FT BUILDING TO 19 FT IN THE AFTERNOON. FREEZING SPRAY N OF 56N. .TONIGHT...NE WIND 45 KT. SEAS 21 FT. SNOW SHOWERS. HEAVY FREEZING SPRAY N OF 57N. .FRI...N WIND 40 KT. SEAS 19 FT. SNOW SHOWERS. HEAVY FREEZING SPRAY N OF 56N. .FRI NIGHT...N WIND 40 KT. SEAS 15 FT. .SAT...NW WIND 40 KT. SEAS 14 FT. .SUN...N WIND 25 KT. SEAS 13 FT. .MON...E WIND 30 KT. SEAS 12 FT. $$ PKZ412-280300- BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N 400 AM AKST THU DEC 27 2012 ...GALE WARNING THROUGH TONIGHT... ...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT... .TODAY...NE WIND 25 TO 35 KT. SEAS 10 FT. HEAVY FREEZING SPRAY N OF 58N. .TONIGHT...NE WIND 25 TO 35 KT. SEAS 12 FT. SNOW SHOWERS. HEAVY FREEZING SPRAY N OF 58N. .FRI...N WIND 30 KT BECOMING VARIABLE 15 KT BY MIDDAY. SEAS 12 FT. SNOW SHOWERS. FREEZING SPRAY. .FRI NIGHT...VARIABLE WIND 15 KT. SEAS 8 FT. .SAT...NE WIND 20 KT. SEAS 10 FT. .SUN...N WIND 20 KT. SEAS 10 FT. .MON...E WIND 20 KT. SEAS 10 FT. $$ PKZ413-280300- BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N 400 AM AKST THU DEC 27 2012 ...GALE WARNING THROUGH TONIGHT... .TODAY...E WIND 35 TO 45 KT. SEAS 14 FT. FREEZING SPRAY N OF 55N. .TONIGHT...NE WIND 30 TO 40 KT. SEAS 15 FT. SNOW AND RAIN. FREEZING SPRAY W OF 175W. .FRI...NE WIND 20 TO 30 KT. SEAS 14 FT. RAIN AND SNOW SHOWERS. FREEZING SPRAY W OF 176W. .FRI NIGHT...N WIND 25 KT. SEAS 11 FT. .SAT...W WIND 30 KT. SEAS 15 FT. .SUN...N WIND 25 KT. SEAS 14 FT. .MON...NE WIND 20 KT. SEAS 10 FT. $$ PKZ414-280300- BERING SEA OFFSHORE EAST OF 171W 400 AM AKST THU DEC 27 2012 ...HEAVY FREEZING SPRAY WARNING TODAY... .TODAY...N WIND 30 KT BECOMING VARIABLE 10 KT IN THE AFTERNOON. SEAS 9 FT. PATCHY FOG. SNOW. HEAVY FREEZING SPRAY N OF 56N IN THE MORNING. .TONIGHT...VARIABLE WIND 10 KT BECOMING S 20 KT AFTER MIDNIGHT. SEAS 6 FT. PATCHY FOG. SNOW AND RAIN. FREEZING SPRAY N OF 56N AFTER MIDNIGHT. .FRI...S WIND 25 KT. SEAS 9 FT. PATCHY FOG. FREEZING SPRAY W OF 168W IN THE MORNING. .FRI NIGHT...E WIND 20 KT. SEAS 8 FT. .SAT...S WIND 25 KT. SEAS 8 FT. .SUN...N WIND 25 KT. SEAS 12 FT. .MON...N WIND 20 KT. SEAS 10 FT. $$
What forecasters said that day
The local office's own words before this gale 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 gale warning went out at Dec 24, 4:00 PM AKST, 12 hours earlier.
Area forecast discussion, Dec 24, 4:00 PM AKST, 12 hours before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKST MON DEC 24 2012
.ANALYSIS AND UPPER LEVELS...THE UPPER LEVEL PATTERN HAS A LOW
CENTERED NEAR NUNIVAK ISLAND WHICH ENCOMPASSES THE MAJORITY OF THE
STATE. THIS LOW CENTER WILL WEAKEN INTO A TROUGH AS A WEAK UPPER
LEVEL RIDGE BEGINS TO PUSH INTO THE WESTERN GULF OF ALASKA TUESDAY.
THIS WILL SHIFT THE PATTERN ALOFT TO MORE SOUTHWESTERLY OVER SOUTHERN
MAINLAND ALASKA. THE JET STREAM REMAINS IN THE ZONE FROM 30N TO 40N
AND WILL REMAIN AROUND THAT AREA THROUGH THE WEEK.
THE PATTERN AT THE SURFACE IS A BIT MORE COMPLEX WITH MULTIPLE LOW
CENTERS ALONG A TROUGH IN THE SOUTHERN BERING SEA. IN ADDITION TO
THIS THERE IS A LOW IN THE BRISTOL BAY REGION THAT CONTINUES TO
WEAKEN AS IT MOVES NORTHWEST BUT IS STILL STRONG ENOUGH TO PRODUCE
SNOW OVER PARTS OF SOUTHWEST ALASKA. A LOW SOUTH OF THE GULF OF
ALASKA WILL RAPIDLY WEAKEN AS IT HEADS TOWARD THE GULF TUE..WITH THE
MAJORITY OF ITS ENERGY BEING USURPED BY A DEVELOPING LOW SOUTH OF THE
ALASKA PENINSULA.
.MODEL DISCUSSION...MODELS HAVE IMPROVED FROM A DAY AGO BUT THERE ARE
STILL SOME AREAS OF CONCERN. OVERALL THE NAM AND GFS LOOK VERY
REASONABLE WITH THE NAM USED IN THE GULF OF ALASKA AND EASTERN PART F
THE FORECAST AREA. THE GFS SOLUTION AROUND THE BERING SEA HAS NOT
CHANGED A LOT FROM YESTERDAY AND THE OTHER MODELS HAVE BEGUN TO
ADJUST THEIR SOLUTIONS TO ONES THAT LOOK SIMILAR TO THE GFS. THE
ECMWF MODEL BEGINS TO DIVERGE FROM OTHER MODEL SOLUTIONS AS EARLY AS
TONIGHT AND BY WED MORNING HAS DEVELOPED A RATHER STRONG LOW SOUTH OF
THE ALASKA PENINSULA THAT IS RESOLVED AS AN OPEN WAVE ON OTHER
SOLUTIONS. THE UPPER LEVEL SUPPORT FAVORS THE OPEN WAVE SOLUTIONS AND
THEREFORE THE ECMWF WAS NOT USED.
.SHORT TERM FORECAST...PERHAPS THE MOST INTERESTING WEATHER SITUATION
IN THE AREA IS SETTING UP FOR THE ANCHORAGE AREA OVERNIGHT. STRONG
SOUTHEASTERLY WINDS WILL CONTINUE TO PRODUCE DOWN SLOPE EFFECT AND
KEEP THE SNOW OVER THE MOUNTAINS AND OUT OF THE ANCHORAGE BOWL PAST
MIDNIGHT. BY MORNING THE UPPER LEVEL WAVE WILL HAVE PASSED OVERHEAD
WHICH WILL CAUSE THE UPPER LEVEL FLOW TO BECOME MORE SOUTHERLY AND
WEAKEN THEREFORE CUTTING OFF THE DOWN SLOPE. BEFORE THE WAVE PASSES
THROUGH THE STRONG WINDS COMING OUT OF TURNAGAIN ARM WILL TURN DOWN
THE INLET AND THE SURFACE FLOW OVER THE ANCHORAGE BOWL WILL REMAIN
NORTHERLY. HOWEVER AS THIS WAVE PASSES OVERHEAD THERE MAY BE A FEW
HOURS WHERE THE TURNAGAIN ARM WINDS MOVE OVER THE SOUTHWEST PART OF
THE CITY AND BRING SOME SOUTHEASTERLY GUSTS IN THE 15 TO 25 MPH
RANGE. IF THIS HAPPENS IT WILL BE FOR ONLY A SHORT TIME BUT WOULD
ALSO JUMP THE TEMPERATURES IN THAT PART OF THE CITY AS WELL.
BY EARLY MORNING THE SITUATION BECOMES CONDUCIVE FOR STEADY SNOW
THROUGH THE EVENING.
THE BLIZZARD WARNING FOR TURNAGAIN PASS THROUGH EASTERN TURNAGAIN ARM
CONTINUES INTO TUESDAY MORNING. SNOWFALL CONTINUES TO BE HEAVY
THROUGH THE EASTERN KENAI MOUNTAINS AND STRONG WINDS WILL PERSIST
THROUGH THE NIGHT.
SOUTHWEST ALASKA...SNOW SHOWERS SHOULD TAPER OFF AS THE LOW MOVING
THROUGH THE AREA FROM THE SOUTHEAST WEAKENS AND FINALLY DISSIPATES
OVERNIGHT.
.LONG TERM FORECAST...MODEL CONFIDENCE REMAINS LOW INTO THE LONG TERM
PERIOD. HOWEVER THE MODELS DO AGREE ON AN ACTIVE PATTERN. MULTIPLE
LOWS ARE EXPECTED TO MOVE ACROSS THE REGION BRINGING PERIODS OF
STRONGER WINDS AND PRECIPITATION WITH THEM THROUGH THE WEEKEND.
.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WARNING 125 131.
MARINE...GALE 120 125 129 130 150 155 170 172 175 176.
HEAVY FREEZING SPRAY 185.
FIRE WEATHER...NONE.
DEC 12The office that day
Everything else NWS Anchorage, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 4:00 PM AKST | Brisk Wind Advisory | AFC | 24 hr | |
| Dec 24, 4:00 PM AKST | Gale Warning | AFC | 24 hr | |
| Dec 24, 4:00 PM AKST | Gale Warning | AFC | 4 days | |
| Dec 24, 4:00 PM AKST | Small Craft Advisory | AFC | 12 hr | |
| Dec 24, 4:00 PM AKST | Small Craft Advisory | AFC | 12 hr | |
| Dec 25, 4:00 AM AKST | Gale Warning | AFC | 4 days | |
| Dec 25, 4:00 AM AKST | Gale Warning | AFC | 48 hr | |
| Dec 25, 4:00 AM AKST | Small Craft Advisory | AFC | 12 hr | |
| Dec 25, 4:00 AM AKST | Small Craft Advisory | AFC | 24 hr | |
| Dec 25, 4:00 AM AKST | Heavy Freezing Spray Warning | AFC | 60 hr |
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.