Alert archive / Alaska / Storm Warnings in 2007

Storm Warning 52, NWS Juneau, AK

December 30, 2007

NWS Juneau, AK issued this storm warning at Dec 30, 2007, 11:00 AM AKST. It was in force for 42 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 30, 2007, 11:00 AM AKST (20:00 UTC)
Expired
Jan 1, 2008, 5:00 AM AKST
In force
42 hr
Issued by
NWS Juneau, AK

The text

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

000 
FZAK67 PAJK 310029
OFFAJK

OFFSHORE FORECAST FOR GULF OF ALASKA EAST OF 144 WEST
NATIONAL WEATHER SERVICE JUNEAU AK
400 PM AST SUN DEC 30 2007

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WINDWAVE AND SWELL HEIGHT.

PKZ398-311630-
.SYNOPSIS FOR GULF OF ALASKA NORTH OF 55 NORTH AND EAST OF
144 WEST...
WEAK HIGH PRESSURE WILL BUILD OVER SE ALASKA SUN NIGHT. A
DEVELOPING STORM IN THE PACIFIC WILL MOVE TO 600 NM SW OF
SITKA...WITH A STRONG WEATHER FRONT EXTENDING TO THE SE ALASKA
COASTAL WATERS BY MON NIGHT. 

$$

PKZ310-311630-
GULF OF ALASKA NORTH OF 55 DEGREES NORTH AND EAST OF 144 DEGREES
WEST-
400 PM AST SUN DEC 30 2007

...STORM WARNING MONDAY...

.TONIGHT...SW WIND 15 TO 20 KT BECOMING SE LATE. SEAS 14 FT. W
SWELL IN THE EVENING. 
.MON...E WIND 25 TO 35 KT INCREASING TO 40 TO 50 KT IN THE
AFTERNOON. SEAS 11 FT BUILDING TO 16 FT IN THE AFTERNOON. 
.MON NIGHT...E STORM FORCE WIND TO 55 KT. SEAS 22 FT. RAIN. 
.TUE...E GALE TO 40 KT. SEAS 25 FT. 
.TUE NIGHT...E WIND 30 KT. SEAS 20 FT. 
.WED...NE WIND 15 TO 25 KT. SEAS 14 FT. S SWELL. 
.THU...WIND VARIABLE LESS THAN 15 KT. SEAS 7 FT. 
.FRI...NW WIND 15 KT. SEAS 8 FT.  

$$
3 follow-up statements
000 
FZAK67 PAJK 311230
OFFAJK

OFFSHORE FORECAST FOR GULF OF ALASKA EAST OF 144 WEST
NATIONAL WEATHER SERVICE JUNEAU AK
400 AM AST MON DEC 31 2007 

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WINDWAVE AND SWELL HEIGHT.

PKZ398-010100-
.SYNOPSIS FOR GULF OF ALASKA NORTH OF 55 NORTH AND EAST OF
144 WEST...
A DEVELOPING STORM IN THE NORTH PACIFIC WILL MOVE TO 500 NM SW
OF SITKA BY TUE AFTERNOON AND DRIFT INTO THE EASTERN GULF
THROUGH WED. A STRONG WEATHER FRONT WILL LIFT N INTO THE SE
ALASKA COASTAL WATERS THROUGH MON NIGHT. 

$$

PKZ310-010100-
GULF OF ALASKA NORTH OF 55 DEGREES NORTH AND EAST OF 144 DEGREES
WEST-
400 AM AST MON DEC 31 2007 

...STORM WARNING TODAY THROUGH TONIGHT...

.TODAY...E WIND 25 TO 35 KT INCREASING TO 45 TO 55 KT IN THE
AFTERNOON. SEAS 7 FT BUILDING TO 17 FT IN THE AFTERNOON.
.TONIGHT...SE WIND 50 TO 60 KT. SEAS 20 FT IN THE EVENING
BUILDING TO 33 FT LATE. RAIN. 
.TUE...SE GALE TO 40 KT. SEAS 27 FT. 
.TUE NIGHT...E WIND 30 KT. SEAS 23 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 14 FT. RAIN.
.THU...W WIND 15 TO 20 KT. SEAS 7 FT. 
.FRI...W WIND 30 KT. SEAS 10 FT.  

$$
000 
FZAK67 PAJK 312209 AAA
OFFAJK

OFFSHORE FORECAST FOR GULF OF ALASKA EAST OF 144 WEST...UPDATED
NATIONAL WEATHER SERVICE JUNEAU AK
110 PM AST MON DEC 31 2007 

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WINDWAVE AND SWELL HEIGHT.

PKZ398-010100-
.SYNOPSIS FOR GULF OF ALASKA NORTH OF 55 NORTH AND EAST OF
144 WEST...
A DEVELOPING STORM IN THE NORTH PACIFIC WILL MOVE TO 500 NM SW
OF SITKA BY TUE AFTERNOON AND DRIFT INTO THE EASTERN GULF
THROUGH WED. A STRONG WEATHER FRONT WILL LIFT N INTO THE SE
ALASKA COASTAL WATERS THROUGH MON NIGHT. 

$$

PKZ310-010100-
GULF OF ALASKA NORTH OF 55 DEGREES NORTH AND EAST OF 144 DEGREES
WEST-
110 PM AST MON DEC 31 2007 

UPDATED TODAYS WIND AND SEAS

...STORM WARNING THROUGH TONIGHT...

.THIS AFTERNOON...E WIND 45 TO 55 KT. SEAS 20 FT.
.TONIGHT...SE WIND 50 TO 60 KT. SEAS 20 FT IN THE EVENING
BUILDING TO 33 FT LATE. RAIN. 
.TUE...SE GALE TO 40 KT. SEAS 27 FT. 
.TUE NIGHT...E WIND 30 KT. SEAS 23 FT. RAIN.
.WED...NW WIND 30 KT. SEAS 14 FT. RAIN.
.THU...W WIND 15 TO 20 KT. SEAS 7 FT. 
.FRI...W WIND 30 KT. SEAS 10 FT.  

$$
000 
FZAK67 PAJK 010030
OFFAJK

OFFSHORE FORECAST FOR GULF OF ALASKA EAST OF 144 WEST
NATIONAL WEATHER SERVICE JUNEAU AK
400 PM AST MON DEC 31 2007 

WIND FORECASTS REFLECT THE PREDOMINANT SPEED AND DIRECTION
EXPECTED. SEA FORECASTS REPRESENT THE AVERAGE OF THE HIGHEST
ONE-THIRD OF THE COMBINED WINDWAVE AND SWELL HEIGHT.

PKZ398-011400-
.SYNOPSIS FOR GULF OF ALASKA NORTH OF 55 NORTH AND EAST OF
144 WEST...
A STRONG WEATHER FRONT ASSOCIATED WITH A STORM IN THE SOUTH
CENTRAL GULF WILL MOVE ACROSS THE SE ALASKA COASTAL WATERS
THROUGH TUE MORNING. THE STORM WILL MOVE TO ABOUT 350 NM SW OF
SITKA BY TUE AFTERNOON THEN SLOWLY FILLS AND DRIFT NE INTO THE
NORTH EASTERN GULF THROUGH EARLY THU.  

$$

PKZ310-011400-
GULF OF ALASKA NORTH OF 55 DEGREES NORTH AND EAST OF 144 DEGREES
WEST-
400 PM AST MON DEC 31 2007 

...STORM WARNING THROUGH TONIGHT...

.TONIGHT...SE WIND 50 TO 60 KT. SEAS 26 FT. RAIN. 
.TUE...SE WIND 30 TO 40 KT DECREASING TO 20 TO 30 KT IN THE
AFTERNOON. SEAS 26 FT.  
.TUE NIGHT...E WIND 30 KT. SEAS 22 FT. SHOWERS.
.WED...NE WIND 30 KT. SEAS 16 FT. 
.WED NIGHT...NW WIND 20 TO 30 KT. SEAS 11 FT. S SWELL. 
.THU...SW WIND 15 TO 20 KT. SEAS 8 FT. S SWELL. RAIN.
.FRI...W WIND 30 KT. SEAS 11 FT. 
.SAT...W WIND 30 KT. SEAS 14 FT.  

$$

What forecasters said that day

The local office's own words before this storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Juneau, AK wrote its last area forecast discussion before this storm warning went out at Dec 30, 6:00 AM AKST, 5 hours earlier.

Area forecast discussion, Dec 30, 6:00 AM AKST, 5 hours before
SOUTHEAST ALASKA FORECAST DISCUSSION
1100 AM AST SUN DEC 30 2007

.SYNOPSIS...
.SHORT RANGE...AT 1900 UTC A WEAK UPPER LEVEL TROUGH OVER THE SE
AK COASTAL WATERS IS MOVING ONSHORE ACROSS THE PANHANDLE AS A
RIDGE BUILDS IN THE EASTERN GULF.  CONVECTION HAS INTENSIFIED
OFFSHORE AND THE SHOWERS ARE BECOMING MORE ORGANIZED IN BANDS AS
THE TROUGH NEARS THE COAST.  RADAR AND SURFACE OBSERVATIONS
INDICATE ISOLATED CELLS WITH HEAVY PRECIPITATION...MAINLY AS
SNOW.  SHOWERS WILL INCREASE ACROSS THE SOUTHERN TWO THIRDS OF SE
AK THIS AFTERNOON AS THE TROUGH PASSES THEN TAPER OFF TONIGHT.

DEVELOPMENT IS UNDERWAY FOR THE INTENSE STORM IN THE PACIFIC THAT
IS EXPECTED TO DEEPEN TO 960 MB AROUND 650 NM SOUTHWEST OF SITKA
BY MONDAY AFTERNOON.  THE STORM WILL CONTINUE MOVING SLOWLY
NORTHEASTWARD TOWARD THE EASTERN GULF OF AK THROUGH THE REMAINDER
OF MONDAY SETTING UP A STRONG NORTHEASTLY OFFSHORE GRADIENT
ACROSS THE PANHANDLE.  EASTERLY WINDS IN THE SOUTHERN OUTSIDE
WATERS ARE EXPECTED TO REACH STORM FORCE BY LATE MONDAY.
DOWNSLOPE DRYING OVER THE INSIDE WATERS AND THE EASTERN GULF
COAST WILL LIMIT PRECIPITATION THROUGHOUT THE DAY. CFD

.LONG RANGE...MODELS ARE GENERALLY GOOD IN AGREEMENT.  12Z MODEL
RUN SHOWS A BETTER BEHAVIOR ESPECIALLY FOR THE SECOND HALF OF THE
LONG TERM FORECAST PERIODS.  THE GFS FAMILY WILL BE SELECTED ONCE
AGAIN TO MAINTAIN RUN TO RUN CONSISTENCY.  AN AMPLIFIED UPPER
RIDGE OVER THE PANHANDLE DRIFTS EAST AWAY FROM THE AREA ON NEW
YEARS EVE AS A STRONG CUT-OFF LOW MOVES IN SOUTH CENTRAL GULF.

THE LEADING EDGE OF THE FRONTAL BOUNDARY ARRIVES THE AREA AS
EARLY AS NEW YEARS EVE.  THUS CLOUDINESS AND POPS INCREASE FROM
THE SOUTH ACCORDINGLY THROUGH TUESDAY NIGHT.  SUFFICIENT MOISTURE
WILL CONTINUE TO FEED OVER HYDER ZONE THROUGH THURSDAY MORNING.
THIS IMPRESSIVE UPPER LOW SLOWLY FILLS AND MOVES INTO EASTERN
GULF WEDNESDAY THEN BECOMES A TROUGH THURSDAY OVER THE OUTSIDE
WATERS.

A STRONG SURFACE LOW AND FRONT ASSOCIATED WITH THE PROGRESSIVE
UPPER LOW WILL GENERATE STORM FORCE WINDS OVER OUTSIDE WATERS AND
VERY WINDY CONDITIONS ACROSS THE COASTAL ZONES ON NEW YEARS EVE
AND NEW YEARS DAY.  PRESSURE GRADIENT SHOULD BE TIGHT ENOUGH TO
PRODUCE GALE FORCE WINDS FOR THE INSIDE WATERS AS WELL.  12Z RUN
MTNWV EVEN HINTS A POSSIBLE SHORT DURATION OF TAKU WIND ON NEW
YEARS DAY.  WILL KEEP THE INHERITED WIND GRIDS FOR THE EARLY
PORTIONS OF THE LONG TERM FORECAST PERIODS.

ONSHORE FLOW WILL RETURN SATURDAY AND SUNDAY AS THE LOW BECOMES A
RESIDUAL OVER NORTH EASTERN GULF.  AK-GFS 850 MB TEMPERATURE
SHOWS A LITTLE WARMING TREND THROUGH THURSDAY THEN SUBSTANTIAL
COOLING OVER THE WEEKEND.  THE NEXT SHORTWAVE TROUGH IN THE
UPSTREAM MOVES INTO EASTERN GULF SATURDAY THEN DRIFTS EAST ACROSS
THE PANHANDLE THROUGH SUNDAY NIGHT. AHN

.AJK...WATCHES/WARNINGS/ADVISORIES
PUBLIC...NONE.
MARINE...STORM...PKZ310 LATE MON.
      ...GALE...PKZ034-035-036-041>043-051-052 LATE MON.
      ...SCA...RMNDR AREA.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 29, 11:00 PM AKSTSmall Craft AdvisoryAJK12 hr
Dec 30, 11:00 AM AKSTGale WarningAJK42 hr
Dec 30, 11:00 AM AKSTGale WarningAJK24 hr
Dec 30, 11:00 AM AKSTSmall Craft AdvisoryAJK24 hr

Nearby

Storm Warnings in Alaska, 2007Every storm 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.