Alert archive / Alaska / Storm Warnings in 2011

Storm Warning 45, NWS Juneau, AK

September 20, 2011

NWS Juneau, AK issued this storm warning at Sep 20, 2011, 4:00 PM AKDT. It was in force for 24 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
Sep 20, 2011, 4:00 PM AKDT (00:00 UTC)
Expired
Sep 21, 2011, 4:00 PM AKDT
In force
24 hr
Issued by
NWS Juneau, AK

The text

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

609 
FZAK52 PAJK 202329
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA
NATIONAL WEATHER SERVICE JUNEAU AK
400 PM AKDT TUE SEP 20 2011 

SOUTHEAST ALASKA COASTAL WATERS FROM DIXON ENTRANCE TO
CAPE SUCKLING OUT 100 NM

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.

PKZ099-211400-
400 PM AKDT TUE SEP 20 2011 
.SYNOPSIS FOR OUTSIDE WATERS...
A 970 MB LOW IN THE NORTHWESTERN GULF WILL WEAKEN AS IT
CONTINUES TO MOVE ONTO KODIAK ISLAND TONIGHT. A LOW SW OF DIXON
ENTRANCE WILL DEVELOP RAPIDLY TO STORM FORCE TONIGHT TO LIE
OFFSHORE SITKA WED MORNING.  

$$

PKZ041-211400-
DIXON ENTRANCE TO CAPE DECISION-
400 PM AKDT TUE SEP 20 2011 

...STORM WARNING WEDNESDAY...

.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT LATE. SEAS 17 FT
BUILDING TO 19 FT LATE. RAIN.
.WED...S WIND 40 KT INCREASING TO 50 KT. SEAS BUILDING TO 27 FT.
RAIN.
.WED NIGHT...S GALE TO 40 KT DIMINISHING TO 20 KT LATE. SEAS 24 FT.

.THU...SE WIND INCREASING TO 30 KT IN THE AFTERNOON. SEAS 17 FT. 
.THU NIGHT...SE STORM FORCE WIND TO 50 KT. SEAS 25 FT. RAIN.
.FRI...S GALE TO 45 KT DIMINISHING OVERNIGHT. SEAS 22 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 11 FT. 
.SUN...E GALE TO 45 KT. SEAS 16 FT. 

$$

PKZ042-211400-
CAPE DECISION TO CAPE EDGECUMBE-
400 PM AKDT TUE SEP 20 2011 

...STORM WARNING WEDNESDAY...

.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT LATE. SEAS 19 FT.
RAIN.
.WED...E WIND 40 KT BECOMING S 50 KT IN THE AFTERNOON. SEAS 24 FT.
RAIN.
.WED NIGHT...S GALE TO 40 KT. SEAS 23 FT. 
.THU...SE WIND 25 KT. SEAS 17 FT. SW SWELL. RAIN.
.THU NIGHT...E GALE TO 45 KT. SEAS 20 FT. RAIN.
.FRI...S GALE TO 35 KT BECOMING SE 15 KT LATE. SEAS 18 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 10 FT. 
.SUN...E GALE TO 40 KT. SEAS 15 FT. 

$$

PKZ043-211400-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
400 PM AKDT TUE SEP 20 2011 

...GALE WARNING WEDNESDAY...

.TONIGHT...SE WIND 30 KT. SEAS 19 FT. RAIN.
.WED...E WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
20 FT BUILDING TO 22 FT IN THE AFTERNOON. RAIN.
.WED NIGHT...S GALE TO 40 KT DIMINISHING TO 25 KT LATE. SEAS 21 FT.
RAIN.
.THU...S WIND 20 KT. SEAS 15 FT. 
.THU NIGHT...NE GALE TO 40 KT. SEAS 14 FT. RAIN.
.FRI...N WIND 30 KT BECOMING S 20 KT OVERNIGHT. SEAS 14 FT. RAIN.
.SAT...SE WIND 20 KT. SEAS 9 FT. 
.SUN...E GALE TO 35 KT. SEAS 14 FT. 

$$

PKZ051-211400-
CAPE FAIRWEATHER TO ICY CAPE-
400 PM AKDT TUE SEP 20 2011 

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE WIND 30 KT. SEAS 19 FT. RAIN.
.WED...E WIND 25 KT. SEAS 18 FT SUBSIDING TO 16 FT IN THE
AFTERNOON. RAIN.
.WED NIGHT...S WIND 20 KT. SEAS 14 FT. RAIN.
.THU...SE WIND 20 KT. SEAS 12 FT. S SWELL. 
.THU NIGHT...E WIND 20 KT BECOMING N LATE. SEAS 12 FT. SW SWELL. 
.FRI...N WIND 30 KT BECOMING SE 15 KT LATE. SEAS 11 FT. 
.SAT...SE WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 25 KT. SEAS 9 FT. 

$$

PKZ052-211400-
ICY CAPE TO CAPE SUCKLING-
400 PM AKDT TUE SEP 20 2011 

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE WIND 30 KT. SEAS 19 FT. RAIN.
.WED...E WIND 25 KT BECOMING NE 15 KT IN THE AFTERNOON.
SEAS 17 FT SUBSIDING TO 15 FT IN THE AFTERNOON. RAIN.
.WED NIGHT...S WIND 15 KT. SEAS 14 FT. S SWELL. RAIN.
.THU...SE WIND INCREASING TO 25 KT. SEAS 11 FT. 
.THU NIGHT...SE WIND 25 KT BECOMING N 20 KT LATE. SEAS 11 FT. SW
SWELL. 
.FRI...NW WIND 25 KT BECOMING W 20 KT IN THE AFTERNOON...THEN SE 15
KT LATE. SEAS 10 FT. S SWELL. 
.SAT...E WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 20 KT. SEAS 8 FT. 

$$
4 follow-up statements
340 
FZAK52 PAJK 210633 AAA
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA...UPDATED
NATIONAL WEATHER SERVICE JUNEAU AK
1035 PM AKDT TUE SEP 20 2011 

SOUTHEAST ALASKA COASTAL WATERS FROM DIXON ENTRANCE TO
CAPE SUCKLING OUT 100 NM

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.

PKZ099-211400-
1035 PM AKDT TUE SEP 20 2011 
.SYNOPSIS FOR OUTSIDE WATERS...
A 970 MB LOW IN THE NORTHWESTERN GULF WILL WEAKEN AS IT
CONTINUES TO MOVE ONTO KODIAK ISLAND TONIGHT. A LOW SW OF DIXON
ENTRANCE WILL DEVELOP RAPIDLY TO STORM FORCE TONIGHT TO LIE
OFFSHORE SITKA WED MORNING.  

$$

PKZ041-211400-
DIXON ENTRANCE TO CAPE DECISION-
1035 PM AKDT TUE SEP 20 2011 

UPDATED

...STORM WARNING WEDNESDAY...

.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT LATE. SEAS 17 FT
BUILDING TO 19 FT LATE. RAIN.
.WED...S WIND 40 KT INCREASING TO 50 KT. SEAS BUILDING TO 27 FT.
RAIN.
.WED NIGHT...S GALE TO 40 KT DIMINISHING TO 20 KT LATE. SEAS 24 FT.
.THU...SE WIND INCREASING TO 30 KT IN THE AFTERNOON. SEAS 17 FT. 
.THU NIGHT...SE STORM FORCE WIND TO 50 KT. SEAS 25 FT. RAIN.
.FRI...S GALE TO 45 KT DIMINISHING OVERNIGHT. SEAS 22 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 11 FT. 
.SUN...E GALE TO 45 KT. SEAS 16 FT. 

$$

PKZ042-211400-
CAPE DECISION TO CAPE EDGECUMBE-
1035 PM AKDT TUE SEP 20 2011 

...STORM WARNING WEDNESDAY...

.TONIGHT...SE WIND 25 KT INCREASING TO 35 KT LATE. SEAS 19 FT.
RAIN.
.WED...E WIND 40 KT BECOMING S 50 KT IN THE AFTERNOON. SEAS 24 FT.
RAIN.
.WED NIGHT...S GALE TO 40 KT. SEAS 23 FT. 
.THU...SE WIND 25 KT. SEAS 17 FT. SW SWELL. RAIN.
.THU NIGHT...E GALE TO 45 KT. SEAS 20 FT. RAIN.
.FRI...S GALE TO 35 KT BECOMING SE 15 KT LATE. SEAS 18 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 10 FT. 
.SUN...E GALE TO 40 KT. SEAS 15 FT. 

$$

PKZ043-211400-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
1035 PM AKDT TUE SEP 20 2011 

...GALE WARNING WEDNESDAY...

.TONIGHT...SE WIND 30 KT. SEAS 19 FT. RAIN.
.WED...E WIND 35 KT INCREASING TO 45 KT IN THE AFTERNOON. SEAS
20 FT BUILDING TO 22 FT IN THE AFTERNOON. RAIN.
.WED NIGHT...S GALE TO 40 KT DIMINISHING TO 25 KT LATE. SEAS 21 FT.
RAIN.
.THU...S WIND 20 KT. SEAS 15 FT. 
.THU NIGHT...NE GALE TO 40 KT. SEAS 14 FT. RAIN.
.FRI...N WIND 30 KT BECOMING S 20 KT OVERNIGHT. SEAS 14 FT. RAIN.
.SAT...SE WIND 20 KT. SEAS 9 FT. 
.SUN...E GALE TO 35 KT. SEAS 14 FT. 

$$

PKZ051-211400-
CAPE FAIRWEATHER TO ICY CAPE-
1035 PM AKDT TUE SEP 20 2011 

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE WIND 30 KT. SEAS 19 FT. RAIN.
.WED...E WIND 25 KT. SEAS 18 FT SUBSIDING TO 16 FT IN THE
AFTERNOON. RAIN.
.WED NIGHT...S WIND 20 KT. SEAS 14 FT. RAIN.
.THU...SE WIND 20 KT. SEAS 12 FT. S SWELL. 
.THU NIGHT...E WIND 20 KT BECOMING N LATE. SEAS 12 FT. SW SWELL. 
.FRI...N WIND 30 KT BECOMING SE 15 KT LATE. SEAS 11 FT. 
.SAT...SE WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 25 KT. SEAS 9 FT. 

$$

PKZ052-211400-
ICY CAPE TO CAPE SUCKLING-
1035 PM AKDT TUE SEP 20 2011 

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TONIGHT...SE WIND 30 KT. SEAS 19 FT. RAIN.
.WED...E WIND 25 KT BECOMING NE 15 KT IN THE AFTERNOON.
SEAS 17 FT SUBSIDING TO 15 FT IN THE AFTERNOON. RAIN.
.WED NIGHT...S WIND 15 KT. SEAS 14 FT. S SWELL. RAIN.
.THU...SE WIND INCREASING TO 25 KT. SEAS 11 FT. 
.THU NIGHT...SE WIND 25 KT BECOMING N 20 KT LATE. SEAS 11 FT. SW
SWELL. 
.FRI...NW WIND 25 KT BECOMING W 20 KT IN THE AFTERNOON...THEN SE 15
KT LATE. SEAS 10 FT. S SWELL. 
.SAT...E WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 20 KT. SEAS 8 FT. 

$$
248 
FZAK52 PAJK 211125
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA
NATIONAL WEATHER SERVICE JUNEAU AK
400 AM AKDT WED SEP 21 2011 

SOUTHEAST ALASKA COASTAL WATERS FROM DIXON ENTRANCE TO
CAPE SUCKLING OUT 100 NM

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.

PKZ099-220100-
400 AM AKDT WED SEP 21 2011 
.SYNOPSIS FOR OUTSIDE WATERS...
A 968 MB LOW OFFSHORE SITKA THIS MORNING WILL DRIFT N AND WEAKEN
TO 974 MB S OF YAKUTAT BAY IN THE AFTERNOON THEN DISSIPATE
DURING THE EVENING. A WEAK RIDGE OF HIGH PRESSURE WILL BUILD
ACROSS SE AK TONIGHT THROUGH THU MORNING. OUTLOOK. A STORM FORCE
LOW WILL MOVE THROUGH THE EAST GULF THU NIGHT AND ONSHORE THE 
CENTRAL PANHANDLE.  

$$

PKZ041-220100-
DIXON ENTRANCE TO CAPE DECISION-
400 AM AKDT WED SEP 21 2011 

...STORM WARNING TODAY...

.TODAY...SE WIND 40 KT INCREASING TO 55 KT IN THE AFTERNOON. SEAS
20 FT BUILDING TO 27 FT IN THE AFTERNOON. RAIN.
.TONIGHT...S WIND DECREASING TO 40 KT IN THE EVENING THEN
DIMINISHING TO 25 KT LATE. SEAS 24 FT SUBSIDING TO 20 FT LATE. 
.THU...SE WIND 30 KT. SEAS 17 FT. 
.THU NIGHT...E STORM FORCE WIND TO 50 KT. SEAS 24 FT. RAIN.
.FRI...S GALE TO 45 KT. SEAS 18 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 11 FT. 
.SUN...E GALE TO 45 KT. SEAS 16 FT. 

$$

PKZ042-220100-
CAPE DECISION TO CAPE EDGECUMBE-
400 AM AKDT WED SEP 21 2011 

...STORM WARNING TODAY...

.TODAY...SE WIND 40 KT INCREASING TO 55 KT IN THE AFTERNOON. SEAS
19 FT BUILDING TO 26 FT IN THE AFTERNOON. RAIN.
.TONIGHT...S WIND DECREASING TO 45 KT IN THE EVENING THEN
DIMINISHING TO 30 KT LATE. SEAS 24 FT SUBSIDING TO 20 FT LATE.
RAIN IN THE EVENING. 
.THU...SE WIND 25 KT. SEAS 17 FT. SW SWELL. 
.THU NIGHT...E GALE TO 40 KT. SEAS 17 FT. RAIN.
.FRI...S GALE TO 40 KT. SEAS 15 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 10 FT. 
.SUN...E GALE TO 40 KT. SEAS 15 FT. 

$$

PKZ043-220100-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
400 AM AKDT WED SEP 21 2011 

...STORM WARNING TODAY...

.TODAY...SE WIND 30 KT INCREASING TO 50 KT IN THE AFTERNOON. 
SEAS 16 FT BUILDING TO 22 FT IN THE AFTERNOON. RAIN.
.TONIGHT...S WIND DECREASING TO 40 KT IN THE EVENING THEN
DIMINISHING TO 30 KT LATE. SEAS 22 FT SUBSIDING TO 18 FT LATE. 
RAIN IN THE EVENING. 
.THU...S WIND 20 KT. SEAS 15 FT. 
.THU NIGHT...NE WIND 30 KT. SEAS 13 FT. RAIN.
.FRI...S GALE TO 35 KT. SEAS 13 FT. 
.SAT...SE WIND 20 KT. SEAS 9 FT. 
.SUN...E GALE TO 35 KT. SEAS 14 FT. 

$$

PKZ051-220100-
CAPE FAIRWEATHER TO ICY CAPE-
400 AM AKDT WED SEP 21 2011 

...GALE WARNING THIS AFTERNOON...

.TODAY...SE WIND 20 KT INCREASING TO 35 KT IN THE AFTERNOON. SEAS
14 FT BUILDING TO 18 FT IN THE AFTERNOON. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 15 FT. RAIN.
.THU...SE WIND 20 KT. SEAS 12 FT. S SWELL. 
.THU NIGHT...E WIND 20 KT. SEAS 12 FT. 
.FRI...S WIND 25 KT. SEAS 10 FT. S SWELL. 
.SAT...SE WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 25 KT. SEAS 9 FT. 

$$

PKZ052-220100-
ICY CAPE TO CAPE SUCKLING-
400 AM AKDT WED SEP 21 2011 

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...SE WIND 25 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
16 FT. RAIN.
.TONIGHT...W WIND 15 KT BECOMING S 20 KT LATE. SEAS 14 FT SUBSIDING
TO 11 FT LATE. RAIN LATE. 
.THU...SE WIND 25 KT. SEAS 11 FT. 
.THU NIGHT...E WIND 20 KT. SEAS 10 FT. 
.FRI...SE WIND 25 KT. SEAS 10 FT. S SWELL. 
.SAT...E WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 20 KT. SEAS 8 FT. 

$$
242 
FZAK52 PAJK 212052 AAA
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA...UPDATED
NATIONAL WEATHER SERVICE JUNEAU AK
1252 PM AKDT WED SEP 21 2011

SOUTHEAST ALASKA COASTAL WATERS FROM DIXON ENTRANCE TO
CAPE SUCKLING OUT 100 NM

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.

PKZ099-221500-
1252 PM AKDT WED SEP 21 2011
.SYNOPSIS FOR OUTSIDE WATERS...
A 974 MB LOW S OF YAKUTAT BAY WILL DISSIPATE DURING THE EVENING
AS IT TRACKS NORTH. A WEAK RIDGE OF HIGH PRESSURE WILL BUILD
ACROSS SE AK THROUGH THU MORNING. OUTLOOK. A STORM FORCE LOW
WILL MOVE THROUGH THE EAST GULF AND ONSHORE THE CENTRAL
PANHANDLE THU NIGHT.  

$$

PKZ041-221500-
DIXON ENTRANCE TO CAPE DECISION-
1252 PM AKDT WED SEP 21 2011

UPDATED

...STORM WARNING TODAY...

.REST OF TODAY...S WIND 55 KT. SEAS 27 FT. RAIN.
.TONIGHT...S WIND DECREASING TO 40 KT IN THE EVENING THEN
DIMINISHING TO 25 KT LATE. SEAS 24 FT SUBSIDING TO 20 FT LATE. 
.THU...SE WIND 30 KT. SEAS 17 FT. 
.THU NIGHT...E STORM FORCE WIND TO 50 KT. SEAS 24 FT. RAIN.
.FRI...S GALE TO 45 KT. SEAS 18 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 11 FT. 
.SUN...E GALE TO 45 KT. SEAS 16 FT. 



$$

PKZ042-221500-
CAPE DECISION TO CAPE EDGECUMBE-
1252 PM AKDT WED SEP 21 2011

UPDATED

...STORM WARNING TODAY...

.REST OF TODAY...S WIND 55 KT. SEAS 26 FT. RAIN.
.TONIGHT...S WIND DECREASING TO 45 KT IN THE EVENING THEN
DIMINISHING TO 30 KT LATE. SEAS 24 FT SUBSIDING TO 20 FT LATE.
RAIN IN THE EVENING. 
.THU...SE WIND 25 KT. SEAS 17 FT. SW SWELL. 
.THU NIGHT...E GALE TO 40 KT. SEAS 17 FT. RAIN.
.FRI...S GALE TO 40 KT. SEAS 15 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 10 FT. 
.SUN...E GALE TO 40 KT. SEAS 15 FT. 



$$

PKZ043-221500-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
1252 PM AKDT WED SEP 21 2011

UPDATED

...STORM WARNING TODAY...

.REST OF TODAY...E WIND 50 KT. GUSTS TO 65 KT OUT OF CROSS SOUND.
SEAS 22 FT. RAIN.
.TONIGHT...S WIND DECREASING TO 40 KT IN THE EVENING THEN
DIMINISHING TO 30 KT LATE. SEAS 22 FT SUBSIDING TO 18 FT LATE. 
RAIN IN THE EVENING. 
.THU...S WIND 20 KT. SEAS 15 FT. 
.THU NIGHT...NE WIND 30 KT. SEAS 13 FT. RAIN.
.FRI...S GALE TO 35 KT. SEAS 13 FT. 
.SAT...SE WIND 20 KT. SEAS 9 FT. 
.SUN...E GALE TO 35 KT. SEAS 14 FT. 



$$

PKZ051-221500-
CAPE FAIRWEATHER TO ICY CAPE-
1252 PM AKDT WED SEP 21 2011

UPDATED

...GALE WARNING THIS AFTERNOON...

.REST OF TODAY...E WIND 35 KT. SEAS 18 FT. RAIN.
.TONIGHT...SW WIND 25 KT. SEAS 15 FT. RAIN.
.THU...SE WIND 20 KT. SEAS 12 FT. S SWELL. 
.THU NIGHT...E WIND 20 KT. SEAS 12 FT. 
.FRI...S WIND 25 KT. SEAS 10 FT. S SWELL. 
.SAT...SE WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 25 KT. SEAS 9 FT. 



$$

PKZ052-221500-
ICY CAPE TO CAPE SUCKLING-
1252 PM AKDT WED SEP 21 2011

UPDATED

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.REST OF TODAY...NE WIND 20 KT. SEAS 16 FT. S SWELL. RAIN.
.TONIGHT...W WIND 15 KT BECOMING S 20 KT LATE. SEAS 14 FT SUBSIDING
TO 11 FT LATE. RAIN LATE. 
.THU...SE WIND 25 KT. SEAS 11 FT. 
.THU NIGHT...E WIND 20 KT. SEAS 10 FT. 
.FRI...SE WIND 25 KT. SEAS 10 FT. S SWELL. 
.SAT...E WIND 25 KT. SEAS 8 FT. 
.SUN...E WIND 20 KT. SEAS 8 FT. 



$$
357 
FZAK52 PAJK 212305
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA
NATIONAL WEATHER SERVICE JUNEAU AK
400 PM AKDT WED SEP 21 2011 

SOUTHEAST ALASKA COASTAL WATERS FROM DIXON ENTRANCE TO
CAPE SUCKLING OUT 100 NM

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.

PKZ099-221400-
400 PM AKDT WED SEP 21 2011 
.SYNOPSIS FOR OUTSIDE WATERS...
A 974 MB LOW S OF YAKUTAT BAY WILL DISSIPATE DURING THE EVENING
AS IT TRACKS NORTH. A WEAK RIDGE OF HIGH PRESSURE WILL BUILD
ACROSS SE AK THROUGH THU MORNING. OUTLOOK. A STORM FORCE LOW
WILL MOVE THROUGH THE EAST GULF AND ONSHORE THE CENTRAL
PANHANDLE THU NIGHT.  

$$

PKZ041-221400-
DIXON ENTRANCE TO CAPE DECISION-
400 PM AKDT WED SEP 21 2011 

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 35 KT DIMINISHING TO 25 KT LATE. SEAS 24 FT
SUBSIDING TO 20 FT LATE. RAIN IN THE EVENING. 
.THU...S WIND 20 KT INCREASING TO 25 KT IN THE AFTERNOON. SEAS 17
FT SUBSIDING TO 14 FT IN THE AFTERNOON. SW SWELL. RAIN IN THE
AFTERNOON. 
.THU NIGHT...E GALE TO 45 KT. SEAS 23 FT. RAIN.
.FRI...SW GALE TO 45 KT. SEAS 21 FT. RAIN.
.FRI NIGHT...S WIND 20 KT. SEAS 13 FT. RAIN.
.SAT...SE WIND 15 KT. SEAS 10 FT. SW SWELL. 
.SUN...E GALE TO 40 KT. SEAS 11 FT. 
.MON...SE GALE TO 35 KT. SEAS 20 FT. 

$$

PKZ042-221400-
CAPE DECISION TO CAPE EDGECUMBE-
400 PM AKDT WED SEP 21 2011 

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT DIMINISHING TO 25 KT LATE. SEAS 26 FT
SUBSIDING TO 19 FT LATE. RAIN IN THE EVENING. 
.THU...S WIND 25 KT DIMINISHING TO 20 KT IN THE AFTERNOON. SEAS
16 FT SUBSIDING TO 14 FT IN THE AFTERNOON. SW SWELL. RAIN IN THE
AFTERNOON. 
.THU NIGHT...E GALE TO 40 KT. SEAS 15 FT. RAIN.
.FRI...W GALE TO 40 KT. SEAS 16 FT. RAIN.
.FRI NIGHT...S WIND 20 KT. SEAS 11 FT. SW SWELL. 
.SAT...SE WIND 20 KT. SEAS 10 FT. SW SWELL. 
.SUN...E WIND 30 KT. SEAS 10 FT. 
.MON...SE WIND 30 KT. SEAS 15 FT. 

$$

PKZ043-221400-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
400 PM AKDT WED SEP 21 2011 

...GALE WARNING TONIGHT...

.TONIGHT...S WIND 40 KT DIMINISHING TO 30 KT LATE. SEAS 21 FT
SUBSIDING TO 18 FT LATE. RAIN.
.THU...S WIND 20 KT. SEAS 15 FT SUBSIDING TO 13 FT IN THE
AFTERNOON. 
.THU NIGHT...E WIND 30 KT. GUSTS TO 45 KT OUT OF CROSS SOUND. 
SEAS 12 FT. 
.FRI...W GALE TO 35 KT. SEAS 13 FT. 
.FRI NIGHT...SW WIND 20 KT. SEAS 11 FT. SW SWELL. 
.SAT...SE WIND 25 KT. SEAS 9 FT. S SWELL. 
.SUN...E WIND 25 KT. SEAS 9 FT. 
.MON...E GALE TO 35 KT. SEAS 9 FT. 

$$

PKZ051-221400-
CAPE FAIRWEATHER TO ICY CAPE-
400 PM AKDT WED SEP 21 2011 

...SMALL CRAFT ADVISORY DUE TO SEAS THROUGH THURSDAY...

.TONIGHT...SW WIND 20 KT. SEAS 14 FT. RAIN.
.THU...S WIND 20 KT DIMINISHING IN THE AFTERNOON. SEAS
12 FT. RAIN IN THE MORNING. 
.THU NIGHT...E WIND 15 KT. SEAS 12 FT. 
.FRI...NW WIND 25 KT. SEAS 10 FT. 
.FRI NIGHT...S WIND 20 KT. SEAS 10 FT. 
.SAT...E WIND 25 KT. SEAS 8 FT. S SWELL. RAIN.
.SUN...E WIND 20 KT. SEAS 7 FT. 
.MON...E WIND 25 KT. SEAS 7 FT. 

$$

PKZ052-221400-
ICY CAPE TO CAPE SUCKLING-
400 PM AKDT WED SEP 21 2011 

...SMALL CRAFT ADVISORY DUE TO SEAS THROUGH THURSDAY...

.TONIGHT...VARIABLE WIND 15 KT BECOMING S LATE. SEAS 13 FT
SUBSIDING TO 10 FT LATE. RAIN.
.THU...S WIND 20 KT. SEAS 10 FT. 
.THU NIGHT...E WIND 15 KT. SEAS 11 FT. 
.FRI...W WIND 20 KT. SEAS 9 FT. 
.FRI NIGHT...S WIND 20 KT. SEAS 8 FT. S SWELL. 
.SAT...E WIND 25 KT. SEAS 7 FT. 
.SUN...E WIND 25 KT. SEAS 7 FT. 
.MON...NE WIND 15 KT. SEAS 6 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 Sep 20, 5:15 AM AKDT, 10 hours 45 minutes earlier.

Area forecast discussion, Sep 20, 5:15 AM AKDT, 10 hours 45 minutes before
SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
515 AM AKDT TUE SEP 20 2011

.SHORT TERM...MATURE VERTICALLY STACKED LOW SE OF KODIAK 967 MB
AT 12Z TODAY HAS STARTED TO FILL. THIS SYSTEM HAS CAPTURED
SIGNIFICANT TROPICAL MOISTURE AND THE COLD AIR SUPPORT IS NOT VERY
STRONG...-26C AT 500 HPA AS PER 12Z KODIAK RAOB. SYSTEM STILL IS
IN UPPER LEFT QUAD OF A TRANSPACIFIC JET FROM THE HIMALAYAS AND
HAS DEVELOPED ITS OWN SOUTHERLY BRANCH ALONG 140W OR SO. THE
ASSOCIATED FRONT NOW MOVING ONTO THE SE AK COAST AS OF 12Z WAS
STRONG AND HAD DRIVEN STORM FORCE WINDS PLUS HUGE SEAS. BOTH RADAR
AND SATELLITE IMAGERY SHOW A BACK EDGE TO THIS FRONT BUT WITH SO
MUCH MOISTURE BEHIND THE FRONT EXPECTING LITTLE OR NO RESPITE FROM
RAIN IN THE NEXT 24 HOURS.

 MOST INTERESTING IS A RAPID DEVELOPMENT ON THE S SIDE OF THIS
MONSTER-SIZED SYSTEM. A CLOSED CENTER HAS FORMED NEAR 45N 152W OR
SO AS PER SATELLITE IMAGERY AT 13Z. AGAIN THE JET IS IN GOOD
SUPPORT AND ALL 20/00Z MODELS AGREE THAT THIS SYSTEM WILL BOMB
BUT BY HOW MUCH? INDICATED GALES TO HIT SOUTHERN OUTSIDE WATERS
WED NIGHT AS PER LOCAL WRF MODEL AND 20/12Z AK-GFS-40 MODEL SFC
WIND. CONCERNED THAT STORMS ARE IN ORDER IF BOUNDARY LAYER WINDS
USED AS PER MODELS NOW ARRIVING. WILL NEED SOME WIND HEADLINES
FOR SOUTHERN AND COASTAL ZONES. CONFIDENCE MODERATE. MAYBE MORE
WIND NEEDED.

&&

.LONG TERM...MODELS ARE IN FAIR AGREEMENT THROUGH THURSDAY NIGHT
WITH THE STORM FORCE LOW IN THE EASTERN GULF WEDNESDAY MORNING
WEAKENS AND TRACKS NORTH TO NEAR YAKUTAT BAY BY WEDNESDAY
EVENING...THEN FARTHER NORTH TO ALASKA INTERIOR AS AN OPEN WAVE. A
WEAK RIDGE OF HIGH PRESSURE BUILDS ACROSS THE FORECAST DOMAIN ON
THURSDAY WITH ANOTHER DEVELOPING STORM FORCE LOW ENTERING THE
EASTERN GULF BY THURSDAY NIGHT. THE GFS SHOWS A BETTER CONSISTENCY
THAN OTHER MODELS AND WAS USED TO REFRESH THE INHERITED GRIDS
THROUGH THURSDAY NIGHT.

 STORM FORCE WINDS WILL EXPAND FROM SOUTH TO NORTH ACROSS THE
OUTER COASTAL WATERS WEDNESDAY...EASE TO GALE LATE WEDNESDAY THEN
BACK TO STORM FORCE WITH THE NEXT SYSTEM THURSDAY AND FRIDAY.
MODERATE TO HEAVY RAINFALL WILL ACCOMPANY THE STRONG GUSTY WINDS.
KEPT THE STRONG WINDS HEADLINE FOR PANHANDLE COASTAL SECTIONS FROM
ELFIN COVE SOUTH TO THE SOUTHERN AREAS THROUGH LATE WEDNESDAY. THE
SECOND STORM FORCE LOW WILL ONCE AGAIN BRING THE STRONG GUSTY
WINDS AND MODERATE TO HEAVY RAINFALL TO THE PANHANDLE COAST ON
THURSDAY AND THURSDAY NIGHT. IN RESPONSE TO THE CONTINUED ABOVE
NORMAL RAINFALL...LOCAL STREAMS AND RIVERS WILL STEADILY RISE
THROUGH LATE THURSDAY THEN THE WATER LEVELS WILL RETURN TO AVERAGE
NORMAL FLOW TOWARDS THE WEEKEND.

 FROM FRIDAY ONWARD...MODELS REMAIN IN GENERAL AGREEMENT WITH
HIGH PRESSURE BUILDING OVER BRITISH COLUMBIA WITH RELATIVELY DRY
WEATHER OVER THE WEEKEND. WITH GROWING UNCERTAINTY FOR A
DEVELOPING STORM IN THE NORTH PACIFIC IMPOSING ITS TRACK TO FAR
SOUTHERN GULF THROUGH EARLY NEXT WEEK...USED THE HPC GUIDANCE FOR
THE PRESSURE FIELD FROM FRIDAY THROUGH THE END. THE POP FIELD WERE
BLENDED WITH THE GFS AND ECMWF.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...GALE WARNING FOR PKZ033-035-036-041>043-051-052.
         SMALL CRAFT ADVISORY FOR PKZ011>013-021-022-031-032-034-053.

&&

JC/AHN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 4:00 PM AKDTGale WarningAJK30 hr
Sep 20, 4:00 PM AKDTGale WarningAJK12 hr
Sep 21, 4:00 AM AKDTGale WarningAJK12 hr
Sep 21, 4:00 AM AKDTGale WarningAJK18 hr
Sep 21, 4:00 AM AKDTStorm WarningAJK12 hr
Sep 21, 4:48 AM AKDTHigh Wind WatchAJK23 hr
Sep 21, 11:52 AM AKDTHigh Wind WarningAJK8 hr

Nearby

Storm Warnings in Alaska, 2011Every storm 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.