Alert archive / Alaska / Gale Warnings in 2013

Gale Warning 327, NWS Anchorage, AK

April 5, 2013

NWS Anchorage, AK issued this gale warning at Apr 5, 2013, 4:00 PM AKDT. 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
Apr 5, 2013, 4:00 PM AKDT (00:00 UTC)
Expired
Apr 7, 2013, 4:00 PM AKDT
In force
48 hr
Issued by
NWS Anchorage, AK

The text

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

972 
FZAK62 PAFC 052230
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT FRI APR 5 2013

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.

PKZ499-061500-
400 PM AKDT FRI APR 5 2013
.SYNOPSIS FOR CENTRAL BERING SEA...

THE BERING SEA WILL REMAIN IN A BROAD EASTERLY FLOW THROUGH SUN
AFTERNOON.

$$

PKZ411-061500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT FRI APR 5 2013

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

.TONIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 15 FT. SNOW AND RAIN.
FREEZING SPRAY N OF 57N.
.SAT...NE WIND 25 TO 35 KT. SEAS 10 TO 15 FT. RAIN S OF 56N. HEAVY
FREEZING SPRAY N OF 57N. 
.SAT NIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 15 FT. HEAVY FREEZING
SPRAY N OF 57N. 
.SUN...NE WIND 30 KT. SEAS 13 FT. 
.SUN NIGHT...NE WIND 20 KT. SEAS 10 FT. 
.MON...NE WIND 15 KT. SEAS 7 FT. 
.TUE...VARIABLE WIND 10 KT. SEAS 5 FT. 
.WED...SW WIND 20 KT. SEAS 6 FT.  

$$

PKZ412-061500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT FRI APR 5 2013

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

.TONIGHT...NE WIND 20 TO 30 KT. SEAS 7 TO 11 FT. HEAVY FREEZING
SPRAY. 
.SAT...NE WIND 25 TO 35 KT. SEAS 9 TO 12 FT. HEAVY FREEZING SPRAY. 
.SAT NIGHT...NE WIND 20 TO 30 KT. SEAS 8 TO 12 FT. HEAVY FREEZING
SPRAY. 
.SUN...NE WIND 30 KT. SEAS 9 FT. 
.SUN NIGHT...NE WIND 20 KT. SEAS 7 FT. 
.MON...N WIND 15 KT. SEAS 4 FT. 
.TUE...N WIND 15 KT. SEAS 4 FT. 
.WED...W WIND 15 KT. SEAS 4 FT.  

$$

PKZ413-061500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT FRI APR 5 2013

...GALE WARNING SATURDAY NIGHT...

.TONIGHT...E WIND 20 TO 30 KT. SEAS 7 TO 11 FT. RAIN AND SNOW. 
.SAT...E WIND 20 TO 30 KT. SEAS 8 TO 12 FT. 
.SAT NIGHT...NE WIND 25 TO 35 KT. SEAS 9 TO 13 FT. FREEZING SPRAY. 
.SUN...NE WIND 30 KT. SEAS 12 FT. 
.SUN NIGHT...NE WIND 25 KT. SEAS 10 FT. 
.MON...N WIND 20 KT. SEAS 8 FT. 
.TUE...NW WIND 15 KT. SEAS 5 FT. 
.WED...W WIND 15 KT. SEAS 5 FT.  

$$

PKZ414-061500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT FRI APR 5 2013

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

.TONIGHT...NE WIND 15 TO 25 KT. SEAS IN ICE FREE WATERS 4 TO 7 FT.
FREEZING SPRAY ALONG THE ICE EDGE. 
.SAT...NE WIND 20 TO 30 KT. SEAS IN ICE FREE WATERS 4 TO 8 FT.
FREEZING SPRAY. 
.SAT NIGHT...NE WIND 20 TO 30 KT. SEAS IN ICE FREE WATERS 6 TO 10 FT.
HEAVY FREEZING SPRAY. 
.SUN...NE WIND 30 KT. SEAS IN ICE FREE WATERS 9 FT. 
.SUN NIGHT...N WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.MON...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT. 
.TUE...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
.WED...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.  

$$
TP
4 follow-up statements
540 
FZAK62 PAFC 061115
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SAT APR 6 2013

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.

PKZ499-070300-
400 AM AKDT SAT APR 6 2013
.SYNOPSIS FOR CENTRAL BERING SEA...
BROAD NORTHEASTERLY FLOW CONTINUES THROUGH SUNDAY NIGHT. 
$$

PKZ411-070300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SAT APR 6 2013

...GALE WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE WIND 35 KT. SEAS 15 FT. SNOW. HEAVY FREEZING SPRAY N OF
57N. 
.TONIGHT...NE WIND 35 KT. SEAS 15 FT. HEAVY FREEZING SPRAY N OF 56N. 
.SUN...NE WIND 30 KT. SEAS 14 FT. HEAVY FREEZING SPRAY N OF 56N. 
.SUN NIGHT...NE WIND 20 KT. SEAS 10 FT. 
.MON...N WIND 15 KT. SEAS 8 FT. 
.TUE...N WIND 15 KT. SEAS 4 FT. 
.WED...W WIND 15 KT. SEAS 5 FT.  
$$

PKZ412-070300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SAT APR 6 2013

...GALE WARNING THROUGH TONIGHT...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE WIND 25 TO 35 KT. SEAS 11 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...NE WIND 25 TO 35 KT. SEAS 11 FT. HEAVY FREEZING SPRAY. 
.SUN...NE WIND 20 TO 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...N WIND 20 KT. SEAS 7 FT. 
.MON...NW WIND 20 KT. SEAS 4 FT. 
.TUE...N WIND 15 KT. SEAS 4 FT. 
.WED...NW WIND 15 KT. SEAS 4 FT.  
$$

PKZ413-070300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SAT APR 6 2013

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

.TODAY...E WIND 25 TO 35 KT. SEAS 12 FT. SNOW AND RAIN. 
.TONIGHT...NE WIND 35 KT. SEAS 14 FT. FREEZING SPRAY DEVELOPING AFTER
MIDNIGHT. 
.SUN...NE WIND 25 TO 35 KT. SEAS 13 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...NE WIND 25 KT. SEAS 11 FT. 
.MON...N WIND 20 KT. SEAS 8 FT. 
.TUE...NW WIND 15 KT. SEAS 4 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 4 FT.  
$$

PKZ414-070300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SAT APR 6 2013

...GALE WARNING TONIGHT AND SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH SUNDAY...

.TODAY...NE WIND 20 TO 30 KT. SEAS IN ICE FREE WATERS 7 FT. HEAVY
FREEZING SPRAY N OF 56N. 
.TONIGHT AND SUN...NE WIND 25 TO 35 KT. SEAS IN ICE FREE WATERS 9 FT.
HEAVY FREEZING SPRAY. 
.SUN NIGHT AND MON...N WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
.TUE AND WED...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
$$
409 
FZAK62 PAFC 062333
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SAT APR 6 2013

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.

PKZ499-071500-
400 PM AKDT SAT APR 6 2013
.SYNOPSIS FOR CENTRAL BERING SEA...

THE BERING SEA WILL REMAIN IN A BROAD EAST NORTHEAST FLOW THROUGH MON
AFTERNOON.

$$

PKZ411-071500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SAT APR 6 2013

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING SUNDAY...

.TONIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 15 FT. FREEZING SPRAY N OF
56N. 
.SUN...NE WIND 15 TO 30 KT. SEAS 8 TO 13 FT. HEAVY FREEZING SPRAY N
OF 56N. 
.SUN NIGHT...NE WIND 10 TO 20 KT. SEAS 5 TO 10 FT. FREEZING SPRAY. 
.MON...NE WIND 15 KT. SEAS 8 FT. 
.MON NIGHT...N WIND 15 KT. SEAS 6 FT. 
.TUE...N WIND 15 KT. SEAS 4 FT. 
.WED...W WIND 15 KT. SEAS 5 FT. 
.THU...S WIND 25 KT. SEAS 7 FT.  

$$

PKZ412-071500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SAT APR 6 2013

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

.TONIGHT...NE WIND 20 TO 30 KT. SEAS 8 TO 11 FT. HEAVY FREEZING
SPRAY. 
.SUN...NE WIND 15 TO 30 KT. SEAS 7 TO 10 FT. HEAVY FREEZING SPRAY. 
.SUN NIGHT...NE WIND 10 TO 20 KT. SEAS 3 TO 7 FT. HEAVY FREEZING
SPRAY. 
.MON...N WIND 15 KT. SEAS 5 FT. 
.MON NIGHT...NW WIND 20 KT. SEAS 4 FT. 
.TUE...N WIND 15 KT. SEAS 4 FT. 
.WED...NW WIND 15 KT. SEAS 4 FT. 
.THU...SW WIND 15 KT. SEAS 4 FT. 

$$

PKZ413-071500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SAT APR 6 2013

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

.TONIGHT...NE WIND 25 TO 35 KT. SEAS 10 TO 14 FT. FREEZING SPRAY. 
.SUN...NE WIND 25 TO 35 KT. SEAS 10 TO 14 FT. HEAVY FREEZING SPRAY N
OF 55N. 
.SUN NIGHT...NE WIND 15 TO 30 KT. SEAS 7 TO 12 FT. FREEZING SPRAY. 
.MON...NE WIND 20 KT. SEAS 9 FT. 
.MON NIGHT...N WIND 20 KT. SEAS 6 FT. 
.TUE...N WIND 15 KT. SEAS 5 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 4 FT. 
.THU...SW WIND 20 KT. SEAS 5 FT. 

$$

PKZ414-071500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SAT APR 6 2013

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

.TONIGHT...NE WIND 20 TO 30 KT. SEAS IN ICE FREE WATERS 7 TO 11 FT.
HEAVY FREEZING SPRAY. 
.SUN...NE WIND 20 TO 35 KT. SEAS IN ICE FREE WATERS 7 TO 12 FT. 
HEAVY FREEZING SPRAY. 
.SUN NIGHT...N WIND 15 TO 30 KT. SEAS IN ICE FREE WATERS 6 TO 11 FT.
HEAVY FREEZING SPRAY. 
.MON...N WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT. 
.MON NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.TUE...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT. 
.WED...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
.THU...W WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT.  

$$
TP
640 
FZAK62 PAFC 071156
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 AM AKDT SUN APR 7 2013

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.

PKZ499-080300-
400 AM AKDT SUN APR 7 2013
.SYNOPSIS FOR CENTRAL BERING SEA...

HIGH PRESSURE OVER EASTERN RUSSIA WILL MOVE TO THE WESTERN BERING BY
MON NIGHT. THIS WILL KEEP BROAD NORTH FLOW ACROSS THE BERING THROUGH
MON NIGHT.

$$

PKZ411-080300-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 AM AKDT SUN APR 7 2013

...HEAVY FREEZING SPRAY WARNING TODAY...

.TODAY...NE WIND 20 TO 30 KT. SEAS 13 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...NE WIND 10 TO 20 KT. SEAS 10 FT. FREEZING SPRAY. 
.MON...NE WIND 15 KT. SEAS 8 FT. 
.MON NIGHT...N WIND 15 KT. SEAS 6 FT. 
.TUE THROUGH WED...NW WIND 15 KT. SEAS 4 FT. 
.THU...S WIND 25 KT. SEAS 7 FT.  

$$

PKZ412-080300-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 AM AKDT SUN APR 7 2013

...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY...

.TODAY...NE WIND 20 TO 30 KT. SEAS 10 FT. HEAVY FREEZING SPRAY. 
.TONIGHT...NE WIND 10 TO 20 KT. SEAS 7 FT. HEAVY FREEZING SPRAY. 
.MON...N WIND 15 KT. SEAS 5 FT. HEAVY FREEZING SPRAY. 
.MON NIGHT...NW WIND 20 KT. SEAS 4 FT. 
.TUE THROUGH THU...NW WIND 15 KT. SEAS 4 FT. 

$$

PKZ413-080300-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 AM AKDT SUN APR 7 2013

...GALE WARNING TODAY...

.TODAY...NE WIND 25 TO 35 KT. SEAS 14 FT. FREEZING SPRAY. 
.TONIGHT...NE WIND 20 TO 30 KT. SEAS 11 FT. FREEZING SPRAY. 
.MON...NE WIND 20 KT. SEAS 9 FT. FREEZING SPRAY. 
.MON NIGHT THROUGH TUE...N WIND 15 KT. SEAS 6 FT. 
.WED...VARIABLE WIND 10 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 5 FT.  

$$

PKZ414-080300-
BERING SEA OFFSHORE EAST OF 171W
400 AM AKDT SUN APR 7 2013

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

.TODAY...NE WIND 25 TO 35 KT. SEAS IN ICE FREE WATERS 9 FT. HEAVY
FREEZING SPRAY. 
.TONIGHT...N WIND 20 TO 30 KT. SEAS IN ICE FREE WATERS 8 FT. HEAVY
FREEZING SPRAY. 
.MON...N WIND 15 TO 25 KT. SEAS IN ICE FREE WATERS 7 FT. HEAVY
FREEZING SPRAY. 
.MON NIGHT...N WIND 20 KT. SEAS IN ICE FREE WATERS 6 FT.
.TUE THROUGH THU...NW WIND 20 KT. SEAS IN ICE FREE WATERS 5 FT. 

$$
230 
FZAK62 PAFC 072353
OFFALU

OFFSHORE WATERS FORECAST
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT SUN APR 7 2013

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.

PKZ499-081500-
400 PM AKDT SUN APR 7 2013
.SYNOPSIS FOR CENTRAL BERING SEA...
HIGH PRESSURE WILL REMAIN OVER THE BERING SEA THROUGH TUE AFTERNOON
WITH LOW PRESSURE OVER THE GULF OF ALASKA. 

$$

PKZ411-081500-
BERING SEA OFFSHORE WEST OF 180 AND EAST OF THE INTERNATIONAL
DATELINE
400 PM AKDT SUN APR 7 2013

.TONIGHT...E WIND 20 KT. SEAS 10 FT. 
.MON...NE WIND 15 KT. SEAS 7 FT. 
.MON NIGHT...NE WIND 15 KT. SEAS 5 FT. FREEZING SPRAY N OF 56N. 
.TUE AND TUE NIGHT...NW WIND 20 KT. SEAS 4 FT. 
.WED...W WIND 15 KT. SEAS 5 FT. 
.THU...S WIND 25 KT. SEAS 7 FT. 
.FRI...S WIND 30 KT. SEAS 11 FT.  

$$

PKZ412-081500-
BERING SEA OFFSHORE 171W TO 180 AND NORTH OF 56N
400 PM AKDT SUN APR 7 2013

...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...N WIND 20 KT. SEAS 6 FT. HEAVY FREEZING SPRAY. 
.MON...NW WIND 10 TO 20 KT. SEAS 4 FT. FREEZING SPRAY. 
.MON NIGHT...NW WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.TUE...NW WIND 15 KT. SEAS 4 FT. 
.TUE NIGHT...NW WIND 20 KT. SEAS 4 FT. 
.WED...NW WIND 15 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 4 FT. 
.FRI...SW WIND 20 KT. SEAS 6 FT.  

$$

PKZ413-081500-
BERING SEA OFFSHORE 171W TO 180 AND SOUTH OF 56N
400 PM AKDT SUN APR 7 2013

.TONIGHT...NE WIND 25 KT. SEAS 11 FT. FREEZING SPRAY. 
.MON...NE WIND 20 KT. SEAS 8 FT. FREEZING SPRAY. 
.MON NIGHT...N WIND 20 KT. SEAS 5 FT. FREEZING SPRAY. 
.TUE AND WED...NW WIND 20 KT. SEAS 5 FT. 
.THU...W WIND 15 KT. SEAS 5 FT. 
.FRI...S WIND 20 KT. SEAS 6 FT.  

$$

PKZ414-081500-
BERING SEA OFFSHORE EAST OF 171W
400 PM AKDT SUN APR 7 2013

...HEAVY FREEZING SPRAY WARNING THROUGH MONDAY NIGHT...

.TONIGHT...N WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT. HEAVY
FREEZING SPRAY. 
.MON AND MON NIGHT...N WIND 25 KT. SEAS IN ICE FREE WATERS 7 FT.
HEAVY FREEZING SPRAY. 
.TUE AND TUE NIGHT...NW WIND 25 KT. SEAS IN ICE FREE WATERS 5 FT. 
.WED AND THU...NW WIND 20 KT. SEAS IN ICE FREE WATERS 4 FT. 
.FRI...W WIND 15 KT. SEAS IN ICE FREE WATERS 3 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 Apr 5, 4:00 PM AKDT, 0 minutes earlier.

Area forecast discussion, Apr 5, 4:00 PM AKDT, 0 minutes before
SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
400 PM AKDT FRI APR 5 2013

.MODEL DISCUSSION...
FORECAST MODELS CONTINUE TO HANDLE THE MAJOR UPPER LEVEL LOW FEATURE
DIVING OVER ALASKA FAIRLY WELL. THIS LOW TO REMAIN OVER THE MAINLAND
THROUGH THURSDAY. A RIDGE PUSHES ACROSS THE BERING THURSDAY AND INTO
THE MAINLAND FRIDAY AND SATURDAY OF NEXT WEEK. IN THE MEANTIME...THE
OPERATIONAL GFS HOLDS THE LOW A BIT LONGER IN THE WESTERN MAINLAND
THURSDAY AND FRIDAY THAN THE ECMWF SOLUTION. HOWEVER...THE GFS
ENSEMBLE IS SLIGHTLY FASTER SUGGESTING MORE ENSEMBLE MEMBERS ARE ON
THE TRACK OF THE ECMWF AND HAVE LEANED OUR MEDIUM RANGE FORECAST IN
THIS DIRECTION.

AT THE SURFACE...THE ECMWF AND NAM ARE IN VERY GOOD AGREEMENT WITH
SURFACE LOW CENTERS AND AREAS OVER THE GULF OF ALASKA THROUGH MONDAY.
NOT MUCH DIFFERENCE EXISTS IN THE BERING AND NORTH PACIFIC DUE TO
LITTLE DEVELOPMENT OF SURFACE LOWS ANYHOW. SURFACE WIND AND PRECIP
PATTERNS IN THE MEDIUM RANGE WILL FOLLOW MOSTLY ALONG THE ECMWF
LINES.

.ANALYSIS AND UPPER LEVELS...
AT THE SURFACE...GENERALLY STRONG HIGH PRESSURE OVER THE ARCTIC AND
LOW PRESSURE IN THE NORTH PACIFIC EXTENDING FROM 40N 180 TO 55N 140W.
THIS IS CREATING A STRONG PRESSURE GRADIENT OVER THE BERING AND
SOUTHWEST ALASKA WITH MODERATE NORTHEAST WINDS ACROSS THE REGION. A
WEAK SURFACE TROUGH ASSOCIATED WITH AN UPPER LOW NEAR SHEMYA EXTENDS
FROM UNALASKA BACK TO THE KAMCHATKA PENINSULA WITH RAIN AND SNOW
SHOWERS.
AT UPPER LEVELS...THE ARCTIC UPPER LOW IS ENTERING THE STATE NEAR THE
MACKENZIE RIVER DELTA WITH HIGH PRESSURE OVER THE BERING AND ANOTHER
UPPER LOW NEAR SHEMYA. THE JET STREAM WRAPPING AROUND THE MAIN UPPER
LOW IN MAINLAND ALASKA IS NOT THAT STRONG AT AROUND 40-50 KT.

.SHORT TERM FORECAST...
FOR SOUTH CENTRAL ALASKA...
MOSTLY CLEAR SKIES TO PERSIST THROUGH THE AFTERNOON AND EVENING HOURS
TONIGHT BEFORE THE MOISTURE STARTS TO BUILD WITH SOUTHERLY FLOW ALOFT
TAKING OVER THE WEATHER PATTERN. COLDER AIR FILTERS INTO THE AREA
TONIGHT AND TOMORROW. MOISTURE WILL WRAP IN FROM THE GULF AND
OVERRIDE THE COLD AIR AT THE SURFACE PROVIDING FOR SNOWFALL TO BEGIN
SATURDAY. AS THE UPPER LEVEL SUPPORT INCREASES SATURDAY NIGHT INTO
SUNDAY WITH THE COLD UPPER LOWS PROXIMITY...SNOWFALL INTENSITY WILL
INCREASE. THE INTENSITY AT THIS TIME IS ANTICIPATED TO WANE DURING
THE DAY SUNDAY. HOWEVER...THERE COULD BE FEATURES WITHIN THE FLOW
TAHT COULD EXTEND SNOWFALL THROUGH THE EVENING SUNDAY BEFORE THE FLOW
BACKS TO THE SOUTHEAST. THE PRESSURE GRADIENTS AT THE SURFACE WILL
NOT BE ALL THAT IMPRESSIVE SATURDAY INTO SUNDAY. THEREFORE...THERE IS
NOT MUCH THREAT FOR BLOWING SNOW JUST HEAVY SNOW. HOWEVER...AS THE
UPPER LEVEL LOW SWINGS EAST A BIT SUNDAY SOME NORTHWESTERLY GAP FLOW
WILL DEVELOP THROUGH THE BARREN ISLAND REGION. THE FLOW REMAINS
SOUTHERLY THROUGH MID NEXT WEEK. DEPENDING ON THE EXACT POSITIONS OF
THE SUBSEQUENT SURFACE LOWS IN THIS FLOW...SNOWFALL WILL BE EAST OF
ANCHORAGE OR FILL BACK INTO ANCHORAGE AND MAT-SU VALLEYS. IN THE
MEANTIME...KODIAK WILL BE BREEZY WITH NORTHWEST FLOW SUNDAY THROUGH
MID WEEK AS ANY SURFACE LOW WILL BE EAST OF THE ISLAND AND CREATE A
WEST TO EAST GRADIENT.

FOR SOUTHWEST ALASKA...COLD AND CLEAR CONDITIONS MAINLY TO PERSIST
THROUGH EARLY NEXT WEEK. THE GRADIENT CURRENTLY PRODUCING MODERATE
NORTH TO NORTHEAST WINDS WILL LESSEN OVER THE MAINLAND TOMORROW AS
THE UPPER LOW MOVES OVERHEAD. NEAR 20 DEGREES BELOW NORMAL TEMPS TO
REMAIN THROUGH MID WEEK WITH LOWS IN THE 10 TO 20 BELOW RANGE. IN THE
NORTHERLY FLOW SOME INSTABILITY SHOWERS WILL PROBABLY DEVELOP ALONG
THE AKPEN STARTING TUESDAY.

FOR ALEUTIANS...THE UPPER LOW NEAR SHEMYA TO REMAIN IN THE AREA
THROUGH SUNDAY WITH SHOWERS AS WELL. THE PRESSURE GRADIENT OVER THE
BERING NOT TO LESSEN THROUGH EARLY NEXT WEEK. THEREFORE...MODERATE
NORTHEAST WINDS TO PERSIST AS WELL. HIGH PRESSURE TO MOVE OVER THE
BERING WEDNESDAY WITH LESSENING WINDS AND SOME INSTABILITY SHOWERS.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...WINTER WEATHER ADVISORY ZONE 101 AND 111.
MARINE...GALE WARNING 160 179.
         STORM WARNING 155.
FIRE WEATHER...NONE.

NELSON APR 13

In the hours before

Special weather statement, Apr 5, 11:25 AM AKDT, 4 hours 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ANCHORAGE AK
1125 AM AKDT FRI APR 5 2013

AKZ101-111-125-145-060000-

...SNOW EXPECTED AGAIN IN SOUTH CENTRAL ALASKA THIS WEEKEND...

DESPITE A NUMBER OF DAYS OF SUNNY WEATHER THIS WEEK, WINTER IS NOT
OVER IN SOUTH CENTRAL ALASKA AND SNOW IS EXPECTED AGAIN THIS WEEKEND.

THE SNOW WILL BEGIN TO FLY SATURDAY AFTERNOON...BUT ACCUMULATIONS
WILL BE MINIMAL. THE HEAVIEST PART OF THE EVENT IS ANTICIPATED TO BE
FROM THE EVENING ON SATURDAY INTO SUNDAY. SIGNIFICANT SNOWFALL IS
EXPECTED AND TRAVEL WILL BE IMPACTED SATURDAY NIGHT AND SUNDAY AS A
RESULT.

DUE TO THE WEATHER PATTERN WE FIND OURSELVES IN AFTER THIS
WEEKEND...SNOW IS A POSSIBILITY OVER ANCHORAGE AND THE MAT-SU AREAS
THROUGH WEDNESDAY. SNOW WILL CONTINUE OVER PRINCE WILLIAM SOUND AND
POINTS EAST FOR SURE THROUGH MID NEXT WEEK. HOWEVER...DEPENDING ON
THE EXACT POSITIONING OF THE SURFACE LOWS MONDAY THROUGH
WEDNESDAY...ANCHORAGE AND THE MAT-SU COULD RECEIVE ANYWHERE FROM
LITTLE TO NO SNOWFALL OR SIGNIFICANT SNOWFALL THROUGH THE WEEK.

IN ADDITION...NIGHTTIME TEMPERATURES WILL BE IN THE TEENS THROUGH THE
WEEK.

STAY TUNED TO FURTHER WEATHER STATEMENTS ABOUT WEEKEND SNOW AMOUNTS
AND POTENTIAL SNOW IMPACTS FOR NEXT WEEK.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 4:00 PM AKDTSmall Craft AdvisoryAFC48 hr
Apr 5, 4:00 PM AKDTSmall Craft AdvisoryAFC24 hr
Apr 5, 4:00 PM AKDTHeavy Freezing Spray WarningAFC7 days
Apr 5, 4:00 PM AKDTHeavy Freezing Spray WarningAFC8 days
Apr 5, 4:00 PM AKDTHeavy Freezing Spray WarningAFC8 days
Apr 5, 4:04 PM AKDTWinter Weather AdvisoryAFC39 hr
Apr 6, 4:00 AM AKDTGale WarningAFC36 hr
Apr 6, 4:00 AM AKDTGale WarningAFC48 hr
Apr 6, 4:00 AM AKDTSmall Craft AdvisoryAFC3 days
Apr 6, 4:00 AM AKDTHeavy Freezing Spray WarningAFC24 hr
Apr 6, 4:00 AM AKDTHeavy Freezing Spray WarningAFC12 hr

Nearby

Gale Warnings in Alaska, 2013Every gale warning in 2013

Sources

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