Alert archive / Alaska / Gale Warnings in 2007

Gale Warning 929, NWS Anchorage, AK

December 19, 2007

NWS Anchorage, AK issued this gale warning at Dec 19, 2007, 11:00 PM 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 19, 2007, 11:00 PM AKST (08:00 UTC)
Expired
Dec 21, 2007, 11:00 PM AKST
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted, in the capitals the NWS used until 2016.

000 
FZAK62 PAFC 201230
OFFALU

OFFSHORE WATERS FORECAST FOR THE BERING SEA
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AST THU DEC 20 2007

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.

PKZ499-210300-
.SYNOPSIS FOR CENTRAL BERING SEA...
A 966 MB LOW NEAR 54N 172W WILL WEAKEN TO 978 MB NEAR 58N 157W FRIDAY
NIGHT. HIGH PRESSURE WILL BUILD OVER THE WESTERN BERING SEA FRIDAY.

$$

PKZ411-210300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AST THU DEC 20 2007

...GALE WARNING TODAY...

.TODAY...NE WIND 35 KT. SEAS 20 FT. PATCHY FOG. SNOW SHOWERS.
FREEZING SPRAY. 
.TONIGHT...NE WIND 30 KT. SEAS 19 FT. PATCHY FOG. FREEZING SPRAY. 
.FRI...N WIND 20 KT. SEAS 16 FT. PATCHY FOG. FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS 13 FT. 
.SAT...N WIND 20 KT. SEAS 11 FT. 
.SUN...NW WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 9 FT.  

$$

PKZ412-210300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AST THU DEC 20 2007

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY...
...GALE WARNING THROUGH FRIDAY...

.TODAY AND TONIGHT...NE WIND 45 KT. SEAS 22 FT. HEAVY FREEZING SPRAY.

.FRI...N WIND 35 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
16 FT. HEAVY FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS 13 FT. 
.SAT...N WIND 20 KT. SEAS 12 FT. 
.SUN...NW WIND 25 KT. SEAS 10 FT. 
.MON...W WIND 30 KT. SEAS 11 FT.  

$$

PKZ413-210300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AST THU DEC 20 2007

...GALE WARNING THROUGH FRIDAY...

.TODAY...NE WIND 40 KT. SEAS 24 FT. RAIN AND SNOW SHOWERS. FREEZING
SPRAY WEST OF 175W. 
.TONIGHT...N WIND 40 KT. SEAS 23 FT. RAIN AND SNOW SHOWERS. FREEZING
SPRAY WEST OF 175W. 
.FRI...N WIND 35 KT. SEAS 20 FT. FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS 16 FT. 
.SAT...N WIND 20 KT. SEAS 12 FT. 
.SUN...NW WIND 25 KT. SEAS 10 FT. 
.MON...W WIND 30 KT. SEAS 12 FT.  

$$

PKZ414-210300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AST THU DEC 20 2007

...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY...
...GALE WARNING THROUGH FRIDAY...

.TODAY...E WIND 45 KT. SEAS 17 FT. SNOW. HEAVY FREEZING SPRAY. 
.TONIGHT...NE WIND 45 KT. SEAS 17 FT. SNOW. HEAVY FREEZING SPRAY. 
.FRI...NE WIND 40 KT. SEAS 18 FT. SNOW. HEAVY FREEZING SPRAY. 
.FRI NIGHT...N WIND 40 KT. SEAS 17 FT. 
.SAT...N WIND 35 KT. SEAS 15 FT. 
.SUN...NW WIND 40 KT. SEAS 13 FT. 
.MON...W WIND 30 KT. SEAS 11 FT.  

$$
4 follow-up statements
000 
FZAK62 PAFC 210010
OFFALU

OFFSHORE WATERS FORECAST FOR THE BERING SEA
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AST THU DEC 20 2007

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.

PKZ499-211500-
.SYNOPSIS FOR CENTRAL BERING SEA...
A 968 MB LOW NEAR 53N 172W WILL WEAKEN TO 978 MB NEAR 58N 158W EARLY
SATURDAY EVENING. HIGH PRESSURE WILL BUILD OVER THE WESTERN BERING
SEA FRIDAY NIGHT INTO SATURDAY.

$$

PKZ411-211500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AST THU DEC 20 2007

.TONIGHT...NE WIND 30 KT. SEAS 13 FT. PATCHY FOG. FREEZING SPRAY. 
.FRI...N WIND 20 KT. SEAS 9 FT. PATCHY FOG. FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS 9 FT. PATCHY FOG. FREEZING SPRAY. 
.SAT...N WIND 15 KT. SEAS 5 FT. 
.SAT NIGHT...N WIND 20 KT. SEAS 8 FT. 
.SUN...NW WIND 25 KT. SEAS 9 FT. 
.MON...NW WIND 25 KT. SEAS 9 FT. 
.TUE...NW WIND 20 KT. SEAS 7 FT.  

$$

PKZ412-211500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AST THU DEC 20 2007

...GALE WARNING THROUGH FRIDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...NE WIND 45 KT. SEAS 21 FT. HEAVY FREEZING SPRAY. 
.FRI...N WIND 35 KT DIMINISHING TO 25 KT IN THE AFTERNOON. SEAS
16 FT. HEAVY FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.SAT...N WIND 20 KT. SEAS 10 FT. 
.SAT NIGHT...NW WIND 20 KT. SEAS 10 FT. 
.SUN...NW WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 11 FT. 
.TUE...NW WIND 20 KT. SEAS 9 FT.  

$$

PKZ413-211500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AST THU DEC 20 2007

...GALE WARNING THROUGH FRIDAY...

.TONIGHT...N WIND 45 KT. SEAS 23 FT. FREEZING SPRAY. 
.FRI...N WIND 35 KT. SEAS 20 FT. FREEZING SPRAY. 
.FRI NIGHT...N WIND 20 KT. SEAS 16 FT. FREEZING SPRAY. 
.SAT...N WIND 15 KT. SEAS 11 FT. 
.SAT NIGHT...N WIND 20 KT. SEAS 9 FT. 
.SUN...NW WIND 20 KT. SEAS 8 FT. 
.MON...W WIND 25 KT. SEAS 10 FT. 
.TUE...SE WIND 25 KT. SEAS 9 FT.  

$$

PKZ414-211500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AST THU DEC 20 2007

...GALE WARNING THROUGH FRIDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH FRIDAY NIGHT...

.TONIGHT...NE WIND 45 KT. SEAS 17 FT. SNOW. HEAVY FREEZING SPRAY. 
.FRI...NE WIND 40 KT. SEAS 18 FT. HEAVY FREEZING SPRAY. 
.FRI NIGHT...N WIND 40 KT DIMINISHING TO 30 KT AFTER MIDNIGHT. SEAS
17 FT. HEAVY FREEZING SPRAY. 
.SAT...NW WIND 25 KT. SEAS 13 FT. 
.SAT NIGHT...NW WIND 20 KT. SEAS 9 FT. 
.SUN...W WIND 25 KT. SEAS 8 FT. 
.MON...W WIND 25 KT. SEAS 9 FT. 
.TUE...SW WIND 20 KT. SEAS 10 FT.  

$$
000 
FZAK62 PAFC 211230
OFFALU

OFFSHORE WATERS FORECAST FOR THE BERING SEA
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AST FRI DEC 21 2007

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.

PKZ499-220300-
.SYNOPSIS FOR CENTRAL BERING SEA...
A 973 MB LOW NEAR 55N 164W WILL MOVE INTO BRISTOL BAY NEAR 56N 161W
SATURDAY MORNING THEN MOVE NORTH AND INLAND NEAR THE KUSKOKWIM DELTA
SATURDAY EVENING AT 976 MB. A 997 MB LOW NEAR 49N 170E WILL 
STRENGTHEN TO 980 MB NEAR 47N 176W SUNDAY MORNING. WEAK HIGH PRESSURE
WILL BUILD OVER THE WESTERN BERING SEA TONIGHT THROUGH SATURDAY.

$$

PKZ411-220300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AST FRI DEC 21 2007

.TODAY...N WIND 25 KT. SEAS 13 FT. PATCHY FOG. FREEZING SPRAY. 
.TONIGHT AND SAT...N WIND 20 KT. SEAS 10 FT. PATCHY FOG. FREEZING
SPRAY. 
.SAT NIGHT...N WIND 20 KT. SEAS 9 FT. 
.SUN AND MON...NW WIND 25 KT. SEAS 9 FT. 
.TUE...N WIND 20 KT. SEAS 7 FT.  

$$

PKZ412-220300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AST FRI DEC 21 2007

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TODAY...N WIND 35 KT. SEAS 16 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...N WIND 25 KT. SEAS 13 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.SAT...N WIND 25 KT. SEAS 11 FT. HEAVY FREEZING SPRAY.
.SAT NIGHT...NW WIND 25 KT. SEAS 11 FT. 
.SUN...NW WIND 20 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 10 FT. 
.TUE...NW WIND 20 KT. SEAS 11 FT.  

$$

PKZ413-220300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AST FRI DEC 21 2007

...GALE WARNING TODAY...

.TODAY...N WIND 35 KT. SEAS 20 FT. SNOW AND RAIN SHOWERS. FREEZING
SPRAY.
.TONIGHT...N WIND 20 KT. SEAS 15 FT. FREEZING SPRAY. 
.SAT...NW WIND 20 KT. SEAS 12 FT. FREEZING SPRAY. 
.SAT NIGHT...N WIND 20 KT. SEAS 10 FT. 
.SUN...N WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 11 FT. 
.TUE...N WIND 25 KT. SEAS 12 FT.  

$$

PKZ414-220300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AST FRI DEC 21 2007

...GALE WARNING TODAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY...

.TODAY...NE WIND 40 KT. SEAS 16 FT. SNOW. HEAVY FREEZING SPRAY. 
.TONIGHT...N WIND 30 KT. SEAS 16 FT. SNOW. HEAVY FREEZING SPRAY. 
.SAT...NW WIND 30 KT. SEAS 13 FT. HEAVY FREEZING SPRAY. 
.SAT NIGHT...NW WIND 30 KT. SEAS 13 FT. 
.SUN...NW WIND 25 KT. SEAS 11 FT. 
.MON...W WIND 25 KT. SEAS 9 FT. 
.TUE...W WIND 20 KT. SEAS 12 FT.  

$$
000 
FZAK62 PAFC 220000
OFFALU

OFFSHORE WATERS FORECAST FOR THE BERING SEA
NATIONAL WEATHER SERVICE ANCHORAGE AK
300 PM AST FRI DEC 21 2007

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.

PKZ499-221500-
.SYNOPSIS FOR CENTRAL BERING SEA...
A 974 MB LOW NEAR 55N 163W WILL MOVE TO NEAR 57N 161W SATURDAY
MORNING AT THE SAME STRENGTH...THEN MOVE INLAND NEAR THE KUSKOKWIM
DELTA SATURDAY EVENING AT 981 MB. A 997 MB LOW NEAR 49N 171E WILL
STRENGTHEN TO 981 MB NEAR 47N 176W SUNDAY MORNING. HIGH PRESSURE WILL
BUILD OVER THE WESTERN BERING SEA THROUGH SUNDAY.

$$

PKZ411-221500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
300 PM AST FRI DEC 21 2007

.TONIGHT...N WIND 20 KT. SEAS 13 FT. FREEZING SPRAY. 
.SAT AND SAT NIGHT...N WIND 20 KT. SEAS 12 FT. FREEZING SPRAY. 
.SUN...NW WIND 25 KT. SEAS 11 FT. 
.SUN NIGHT...NW WIND 20 KT. SEAS 10 FT. 
.MON...NW WIND 20 KT. SEAS 9 FT. 
.TUE AND WED...NW WIND 15 KT. SEAS 8 FT. 

$$

PKZ412-221500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
300 PM AST FRI DEC 21 2007

...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...N WIND 25 KT. SEAS 14 FT. HEAVY FREEZING SPRAY. 
.SAT...N WIND 25 KT. SEAS 14 FT. HEAVY FREEZING SPRAY.
.SAT NIGHT...NW WIND 25 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 20 KT. SEAS 10 FT. 
.SUN NIGHT...NW WIND 25 KT. SEAS 11 FT. 
.MON...W WIND 25 KT. SEAS 11 FT. 
.TUE...NW WIND 20 KT. SEAS 11 FT. 
.WED...NW WIND 15 KT. SEAS 8 FT.  

$$

PKZ413-221500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
300 PM AST FRI DEC 21 2007

.TONIGHT...N WIND 30 KT. SEAS 15 FT. FREEZING SPRAY. 
.SAT...NW WIND 20 KT. SEAS 13 FT. FREEZING SPRAY. 
.SAT NIGHT...NW WIND 15 KT. SEAS 11 FT. FREEZING SPRAY. 
.SUN...NW WIND 20 KT. SEAS 10 FT. 
.SUN NIGHT...NW WIND 25 KT. SEAS 11 FT. 
.MON...W WIND 25 KT. SEAS 11 FT. 
.TUE AND WED...NW WIND 20 KT. SEAS 10 FT. 

$$

PKZ414-221500-
BERING SEA OFFSHORE EAST OF 171W
300 PM AST FRI DEC 21 2007

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NE WIND 35 KT. SEAS 17 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.SAT AND SAT NIGHT...NW WIND 30 KT. SEAS 15 FT. HEAVY FREEZING SPRAY.

.SUN...NW WIND 30 KT. SEAS 14 FT. 
.SUN NIGHT...NW WIND 25 KT. SEAS 12 FT. 
.MON AND TUE...W WIND 25 KT. SEAS 11 FT. 
.WED...N WIND 30 KT. SEAS 13 FT.  

$$
000 
FZAK62 PAFC 221230
OFFALU

OFFSHORE WATERS FORECAST FOR THE BERING SEA
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AST SAT DEC 22 2007

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.

PKZ499-230300-
.SYNOPSIS FOR CENTRAL BERING SEA...
A 975 MB LOW WILL MOVE INLAND NEAR DILLINGHAM THIS MORNING. A 986 MB
LOW AT 46N 178E WILL WILL STRENGTHEN TO 976 MB AS IT MOVES TO 54N
157W MONDAY MORNING. WEAK HIGH PRESSURE WILL BUILD OVER THE WESTERN
BERING SEA THROUGH SUNDAY. 

$$

PKZ411-230300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AST SAT DEC 22 2007

.TODAY...N WIND 20 KT. SEAS 11 FT. FREEZING SPRAY. 
.TONIGHT...N WIND 20 KT. SEAS 10 FT. FREEZING SPRAY. 
.SUN...NW WIND 25 KT. SEAS 9 FT. FREEZING SPRAY. 
.SUN NIGHT...NW WIND 20 KT. SEAS 9 FT. 
.MON...NW WIND 15 KT. SEAS 9 FT. 
.TUE...NW WIND 25 KT. SEAS 7 FT. 
.WED...N WIND 20 KT. SEAS 8 FT.  

$$

PKZ412-230300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AST SAT DEC 22 2007

...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT...

.TODAY...N WIND 25 KT. SEAS 12 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...NW WIND 25 KT. SEAS 11 FT. HEAVY FREEZING SPRAY. 
.SUN...N WIND 20 KT. SEAS 9 FT. FREEZING SPRAY. 
.SUN NIGHT...NW WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 8 FT. 
.TUE...W WIND 20 KT. SEAS 8 FT. 
.WED...NW WIND 20 KT. SEAS 8 FT.  

$$

PKZ413-230300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AST SAT DEC 22 2007

.TODAY...N WIND 20 KT. SEAS 13 FT. FREEZING SPRAY. 
.TONIGHT...N WIND 20 KT. SEAS 11 FT. FREEZING SPRAY. 
.SUN...NW WIND 20 KT. SEAS 9 FT. FREEZING SPRAY. 
.SUN NIGHT...NW WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 9 FT. 
.TUE...NW WIND 20 KT. SEAS 8 FT. 
.WED...NW WIND 25 KT. SEAS 10 FT.  

$$

PKZ414-230300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AST SAT DEC 22 2007

...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NW WIND 30 KT. SEAS 13 FT. SNOW SHOWERS. HEAVY FREEZING
SPRAY. 
.TONIGHT...NW WIND 30 KT. SEAS 13 FT. HEAVY FREEZING SPRAY. 
.SUN...NW WIND 30 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
12 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...NW WIND 25 KT. SEAS 9 FT. 
.MON...W WIND 25 KT. SEAS 9 FT. 
.TUE...SE WIND 25 KT. SEAS 10 FT. 
.WED...N WIND 30 KT. SEAS 12 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 19, 9:00 AM AKST, 14 hours earlier.

Area forecast discussion, Dec 19, 9:00 AM AKST, 14 hours before
AREA FORECAST DISCUSSION
SOUTHCENTRAL AND SOUTHWEST ALASKA
200 PM AST WED DEC 19 2007

.ANALYSIS...
A LARGE LOW PRESSURE SYSTEM OVER THE WESTERN ALEUTIANS ASSOCIATED
WITH A CLOSED UPPER LEVEL AND 100 KT JET TO STRETCH A MODERATE FRONT
ACROSS THE CENTRAL BERING TODAY. STRONG WINDS AND MODERATE
PRECIPITATION WRAPPED AROUND THE LOW IN THE WESTERN ALEUTIANS. A WEAK
LOW IN THE NORTHERN GULF WITH SOME SNOW SHOWERS. COLD CORE NATURE OF
THIS LOW MAKING MOST OF THE PRECIPITATION QUITE CONVECTIVE. IN OTHER
AREAS...COLD AIR IN PLACE OVER THE MAINLAND AND EASTERN BERING AND
WESTERN GULF. WITH THE LOW IN THE GULF AND COLD AIR INLAND...STRONG
PRESSURE GRADIENT ALONG THE GULF COAST. THIS IS REINFORCED BY A SHORT
WAVE MOVING THROUGH SOUTH CENTRAL TODAY. THEREFORE...SEEING MODERATE
TO STRONG GAP WINDS ONCE AGAIN TODAY.

.UPPER LEVELS AND MODEL DISCUSSION...
COLD CORE UPPER LOW NEAR THE BROOKS RANGE MOVING VERY LITTLE OVER THE
NEXT 24 HOURS THEN RETROGRADES INTO THE BERING STRAIT FRIDAY.
COMBINED WITH AN UPPER LOW IN THE YUKON...A BROAD TROUGH IS OVER THE
GULF. THIS LOW IN THE YUKON TO LEAVE BRINGING A RIDGE THURSDAY TO THE
GULF AHEAD OF A LOW TO ROTATE INTO THE AREA AROUND THE TROUGH DIGGING
IN THE EASTERN BERING. A FEW SYSTEMS TO ROTATE AROUND THIS LARGE
SCALE TROUGH OVER THE NEXT WEEK. THE EXACT POSITIONING OF EACH WAVE
ROTATING AROUND THIS LOW IS STILL A BIT UNCERTAIN ESPECIALLY AFTER
SUNDAY. THEREFORE...THE DETAILS OF STRENGTH WITH EACH SYSTEM IN THE
MID RANGE HAS BEEN MODERATED DUE TO UNCERTAINTY. LOOKING AT THE
CONSISTENCY OF THE EC OVER THE PAST COUPLE DAYS AND THE FACT THAT THE
12Z GFS HAS NOW LEANED TO THIS SOLUTION THROUGH DAY 4...WE HAVE
RELOADED THE FORECAST TO THE 12Z GFS SOLUTION THROUGH DAY 7.

IN THE SHORT TERM...THE UPPER LOW OVER THE WESTERN ALEUTIANS TO MOVE
ALONG THE ALEUTIAN CHAIN TO COLD BAY FRIDAY. MEANWHILE...A WAVE
UNDERNEATH THIS LOW TO RIDE ALONG THE JET TO ROTATE A LOW INTO THE
GULF THURSDAY NIGHT/FRIDAY. THE UPPER LOW TO ROTATE TO THE NORTH GULF
COAST FRIDAY NIGHT THEN INLAND. THE COLD BAY LOW TO MOVE INTO THE
WESTERN GULF SATURDAY WITH A RIDGE PUSHING OVER THE WESTERN BERING.

.SHORT TERM FORECAST...
BERING AND ALEUTIANS AND WESTERN ALASKA...
LOW PRESSURE SYSTEM IN THE WESTERN ALEUTIANS WITH A STRONG FRONT
EXTENDING INTO CENTRAL BERING. THE COLD AIR TO THE NORTH OF THIS
FRONT WILL CLASH AND CREATE BLIZZARD CONDITIONS TO THE PRIBILOF
ISLANDS. HAVE SLOWED THE START TIME OF THIS WARNING BASED ON
SATELLITE AND START OF HEAVIER SNOWFALL. THE FRONT WILL STRETCH TO
THE ALASKA PENINSULA AND BRISTOL BAY THURSDAY. THE COLD AIR IN PLACE
OVER THE MAINLAND NOT GOING TO BE REPLACED WITH THE FRONT OVER THE
KUSKOKWIM VALLEY AND DELTA. THE LOW WILL MOVE THROUGH THE CENTRAL
ALEUTIANS THURSDAY AND TO COLD BAY FRIDAY. MOST PRECIP WILL NOT MOVE
INTO THE KUSKOKWIM VALLEY AND DELTA. BEHIND THE LOW...STRONG COLD AIR
TO PUSH ACROSS THE BERING WITH SNOW SHOWERS AND STRONG WINDS NEAR THE
LOW IN THE EASTERN BERING.

SOUTH CENTRAL ALASKA...
CURRENTLY...LOW IN THE NORTHERN GULF WITH A SHORT WAVE TROUGH MOVING
THROUGH THE AREA. COLD AIR ALSO IN PLACE OVER THE MAINLAND...THIS HAS
PLACED A TIGHT PRESSURE GRADIENT ALONG THE COAST. THEREFORE...STRONG
GAP WINDS EXPERIENCED THROUGH THE NORTH GULF COAST AND KENAI
PENINSULA. THIS LOW TO MOVED OUT TONIGHT WITH WINDS DISSIPATING.
MEANWHILE...A FRONT WILL WORK TO KODIAK WITH WINDS PICKING UP FROM
THE SOUTHEAST ACROSS THE GULF THURSDAY. THE FRONT TO MAKE ITS WAY TO
THE GULF COAST THURSDAY AFTERNOON. GOOD DOWNSLOPE PATTERN FOR THIS
FRONT...SO PRECIP WILL BE LIMITED IN THE MATANUSKA VALLEY AND
ANCHORAGE BOWL THURSDAY. ANOTHER LOW TO MOVE NORTH THROUGH THE GULF
THURSDAY NIGHT/FRIDAY TO CONCENTRATE THE LOW AND PULL PRECIP AWAY
FROM THE INLAND MORE. WINDS WILL INCREASE AS THE LOW MOVES TO GULF
COAST FRIDAY AFTERNOON. THE LOW TO WEAKEN THROUGH FRIDAY NIGHT WITH
PRECIP WANING.

.LONG TERM FORECAST...
GENERALLY...BEYOND SATURDAY THE LARGE SCALE TROUGH TO REMAIN OVER THE
BERING WITH SOUTHWEST FLOW OVER SOUTH CENTRAL AND COLD NORTHERLY AIR
MASS OVER THE BERING. A FEW LOW PRESSURE SYSTEMS TO ROTATE AROUND
THIS TROUGH FROM FRIDAY THROUGH THURSDAY. THE TIMING AND EXACT
POSITION OF THESE SYSTEMS IS STILL UNCERTAIN BETWEEN THE EC AND GFS.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...BLIZZARD WARNING 195.
MARINE...GALE WARNING ZONES 121 129 130 165 170 171 172 176 179 180
          185
         HEAVY FREEZING SPRAY WARNING ZONES 121 125 129 130 138 140
          141 150 160 179 180 185
FIRE WEATHER...NONE

JN DEC 07

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 19, 11:00 PM AKSTGale WarningAFC48 hr
Dec 19, 11:00 PM AKSTGale WarningAFC36 hr
Dec 19, 11:00 PM AKSTSmall Craft AdvisoryAFC12 hr
Dec 19, 11:00 PM AKSTSmall Craft AdvisoryAFC24 hr
Dec 20, 12:01 AM AKSTSnow AdvisoryAFC29 hr
Dec 20, 12:01 AM AKSTWinter Storm WatchAFC11 hr
Dec 20, 5:36 AM AKSTHeavy Snow WarningAFC23 hr
Dec 20, 7:36 AM AKSTBlizzard WarningAFC35 hr
Dec 20, 11:00 AM AKSTGale WarningAFC23 hr
Dec 20, 11:00 AM AKSTSmall Craft AdvisoryAFC6 days
Dec 20, 11:00 AM AKSTSmall Craft AdvisoryAFC36 hr
Dec 20, 11:00 AM AKSTStorm WarningAFC12 hr
Dec 20, 11:00 AM AKSTStorm WarningAFC24 hr
Dec 20, 11:00 AM AKSTHeavy Freezing Spray WarningAFC24 hr

Nearby

Gale Warnings in Alaska, 2007Every gale warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.