Alert archive / Alaska / Small Craft Advisories in 2012

Small Craft Advisory 424, NWS Juneau, AK

July 22, 2012

NWS Juneau, AK issued this small craft advisory at Jul 22, 2012, 12:32 PM AKDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jul 22, 2012, 12:32 PM AKDT (20:32 UTC)
Expired
Jul 23, 2012, 4:00 AM AKDT
In force
15 hr
Issued by
NWS Juneau, AK

The text

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

851 
FZAK52 PAJK 222032 AAA
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA...UPDATED
NATIONAL WEATHER SERVICE JUNEAU AK
1232 PM AKDT SUN JUL 22 2012

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.

PKZ099-230100-
1232 PM AKDT SUN JUL 22 2012
.SYNOPSIS FOR OUTSIDE WATERS...
A WEATHER FRONT OVER CENTRAL PANHANDLE WILL DISSIPATE SUNDAY. A
SECOND WEATHER FRONT WILL MOVE INTO THE EASTERN GULF SUNDAY AND
DISSIPATE OVER SOUTHEAST ALASKA MONDAY.  

$$

PKZ041-230100-
DIXON ENTRANCE TO CAPE DECISION-
1232 PM AKDT SUN JUL 22 2012

.TODAY...NW WIND INCREASING TO 20 KT IN THE AFTERNOON. SEAS 3 FT
BUILDING TO 5 FT IN THE AFTERNOON. AREAS OF FOG WITH VISIBILITY 1
NM OR LESS.
.TONIGHT...W WIND 20 KT DIMINISHING LATE. SEAS 5 FT. AREAS OF FOG
WITH VISIBILITY 1 NM OR LESS. 
.MON...NW WIND 20 KT. SEAS 6 FT. W SWELL IN THE MORNING. 
.MON NIGHT...NW WIND 20 KT. SEAS 6 FT. 
.TUE...NW WIND 25 KT. SEAS 7 FT. 
.WED...NW WIND 25 KT. SEAS 6 FT. 
.THU...W WIND 20 KT. SEAS 5 FT. 

$$

PKZ042-230100-
CAPE DECISION TO CAPE EDGECUMBE-
1232 PM AKDT SUN JUL 22 2012

.TODAY...W WIND 10 KT INCREASING TO 20 KT IN THE AFTERNOON. SEAS
3 FT BUILDING TO 5 FT IN THE AFTERNOON. AREAS OF FOG WITH
VISIBILITY 1 NM OR LESS. 
.TONIGHT...W WIND 15 KT. SEAS 5 FT. W SWELL LATE. AREAS OF FOG
WITH VISIBILITY 1 NM OR LESS. 
.MON...W WIND 20 KT. SEAS 6 FT. W SWELL. 
.MON NIGHT...W WIND 20 KT. SEAS 6 FT. 
.TUE...NW WIND 20 KT. SEAS 6 FT. 
.WED...NW WIND 20 KT. SEAS 6 FT. 
.THU...W WIND 20 KT. SEAS 5 FT. 

$$

PKZ043-230100-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
1232 PM AKDT SUN JUL 22 2012

UPDATED

.REST OF TODAY...S WIND 15 KT. SEAS BUILDING TO 6 FT. AREAS OF FOG
WITH VISIBILITY 1 NM OR LESS.
.TONIGHT...SW WIND 15 KT. SEAS 5 FT. W SWELL LATE.
.MON...W WIND 15 KT. SEAS 6 FT. 
.MON NIGHT...W WIND 15 KT. SEAS 6 FT. 
.TUE...W WIND 20 KT. SEAS 6 FT. 
.WED...NW WIND 20 KT. SEAS 5 FT. 
.THU...W WIND 15 KT. SEAS 4 FT. 

$$

PKZ051-230100-
CAPE FAIRWEATHER TO ICY CAPE-
1232 PM AKDT SUN JUL 22 2012

UPDATED

...SMALL CRAFT ADVISORY TODAY...

.REST OF TODAY...SE WIND 25 KT. SEAS 7 FT. RAIN.
.TONIGHT...SW WIND 10 KT. SEAS 5 FT. RAIN IN THE EVENING. 
.MON...W WIND INCREASING TO 15 KT IN THE AFTERNOON. SEAS 5 FT.
.MON NIGHT...W WIND 15 KT. SEAS 5 FT. 
.TUE...W WIND 15 KT. SEAS 5 FT. 
.WED...W WIND 15 KT. SEAS 4 FT. 
.THU...W WIND 10 KT. SEAS 4 FT. 

$$

PKZ052-230100-
ICY CAPE TO CAPE SUCKLING-
1232 PM AKDT SUN JUL 22 2012

UPDATED

...SMALL CRAFT ADVISORY TODAY...

.REST OF TODAY...SE WIND 25 KT. SEAS 7 FT. RAIN.
.TONIGHT...S WIND 15 KT BECOMING W 10 KT LATE. SEAS 6 FT. 
.MON...SW WIND 10 KT. SEAS 5 FT. 
.MON NIGHT...W WIND 15 KT. SEAS 5 FT. 
.TUE...W WIND 15 KT. SEAS 4 FT. 
.WED...W WIND 10 KT. SEAS 3 FT. 
.THU...W WIND 10 KT. SEAS 4 FT. 

$$
2 follow-up statements
875 
FZAK52 PAJK 222331
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA
NATIONAL WEATHER SERVICE JUNEAU AK
400 PM AKDT SUN JUL 22 2012 

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.

PKZ099-231400-
400 PM AKDT SUN JUL 22 2012 
.SYNOPSIS FOR OUTSIDE WATERS...
A WEATHER FRONT ENTERING THE EASTERN GULF IS FORECAST TO
DISSIPATE OVER NORTHERN SOUTHEAST ALASKA MONDAY. A RIDGE OF HIGH
PRESSURE BUILDS INTO THE EASTERN GULF MONDAY NIGHT AND TUESDAY. 

$$

PKZ041-231400-
DIXON ENTRANCE TO CAPE DECISION-
400 PM AKDT SUN JUL 22 2012 

.TONIGHT...W WIND INCREASING TO 20 KT LATE. SEAS 5 FT. AREAS OF
FOG WITH VISIBILITY 1 NM OR LESS LATE. 
.MON...NW WIND 20 KT. SEAS 5 FT. W SWELL. AREAS OF FOG WITH
VISIBILITY 1 NM OR LESS IN THE MORNING. 
.MON NIGHT...NW WIND 20 KT. SEAS 6 FT. 
.TUE...NW WIND 20 KT. SEAS 6 FT. 
.TUE NIGHT...NW WIND 20 KT. SEAS 6 FT. 
.WED...W WIND 15 KT. SEAS 6 FT. 
.THU...NW WIND 15 KT. SEAS 4 FT. 
.FRI...W WIND 10 KT. SEAS 4 FT. 

$$

PKZ042-231400-
CAPE DECISION TO CAPE EDGECUMBE-
400 PM AKDT SUN JUL 22 2012 

.TONIGHT...W WIND 20 KT. SEAS 5 FT. W SWELL. AREAS OF FOG WITH
VISIBILITY 1 NM OR LESS LATE. 
.MON...NW WIND 20 KT. SEAS 5 FT. W SWELL. 
.MON NIGHT...NW WIND 20 KT. SEAS 5 FT. 
.TUE...NW WIND 20 KT. SEAS 5 FT. 
.TUE NIGHT...W WIND 20 KT. SEAS 5 FT. 
.WED...NW WIND 15 KT. SEAS 5 FT. 
.THU...NW WIND 15 KT. SEAS 4 FT. 
.FRI...W WIND 10 KT. SEAS 4 FT. 

$$

PKZ043-231400-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
400 PM AKDT SUN JUL 22 2012 

.TONIGHT...SW WIND INCREASING TO 15 KT LATE. SEAS 5 FT. W SWELL.
RAIN LATE. 
.MON...NW WIND 15 KT. SEAS 5 FT. W SWELL. 
.MON NIGHT...NW WIND 15 KT. SEAS 5 FT. 
.TUE...W WIND 15 KT. SEAS 5 FT. 
.TUE NIGHT...W WIND 10 KT. SEAS 4 FT. 
.WED...NW WIND 15 KT. SEAS 5 FT. 
.THU...W WIND 15 KT. SEAS 5 FT. 
.FRI...W WIND 15 KT. SEAS 5 FT. 

$$

PKZ051-231400-
CAPE FAIRWEATHER TO ICY CAPE-
400 PM AKDT SUN JUL 22 2012 

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 25 KT BECOMING W 10 KT LATE. SEAS 6 FT. RAIN.
.MON...W WIND 10 KT. SEAS 5 FT. RAIN IN THE MORNING. 
.MON NIGHT...W WIND 10 KT. SEAS 5 FT. 
.TUE...W WIND 10 KT. SEAS 4 FT. 
.TUE NIGHT...W WIND 10 KT. SEAS 3 FT. 
.WED...W WIND 10 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 5 FT. 
.FRI...W WIND 15 KT. SEAS 5 FT. 

$$

PKZ052-231400-
ICY CAPE TO CAPE SUCKLING-
400 PM AKDT SUN JUL 22 2012 

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE WIND 25 KT DIMINISHING TO SW 15 KT LATE. SEAS 6 FT
SUBSIDING TO 4 FT LATE. RAIN.
.MON...W WIND 10 KT. SEAS 4 FT. RAIN IN THE MORNING. 
.MON NIGHT...W WIND 10 KT. SEAS 4 FT. 
.TUE...W WIND 10 KT. SEAS 4 FT. 
.TUE NIGHT...W WIND 10 KT. SEAS 4 FT. 
.WED...W WIND 10 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 4 FT. 
.FRI...W WIND 15 KT. SEAS 5 FT. 

$$
889 
FZAK52 PAJK 231132
CWFAEG

COASTAL WATERS FORECAST FOR SOUTHEAST ALASKA
NATIONAL WEATHER SERVICE JUNEAU AK
400 AM AKDT MON JUL 23 2012 

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.

PKZ099-240100-
400 AM AKDT MON JUL 23 2012 
.SYNOPSIS FOR OUTSIDE WATERS...
A WEATHER FRONT OVER THE NORTHERN PANHANDLE WILL DISSIPATE MONDAY.
A RIDGE OF HIGH PRESSURE IN THE EASTERN GULF WILL CONTINUE TO BUILD
THROUGH TUESDAY.

$$

PKZ041-240100-
DIXON ENTRANCE TO CAPE DECISION-
400 AM AKDT MON JUL 23 2012 

.TODAY...NW WIND 20 KT. SEAS 6 FT. W SWELL. AREAS OF FOG WITH
VISIBILITY 1 NM OR LESS IN THE MORNING.
.TONIGHT...NW WIND 20 KT. SEAS 6 FT. PATCHY FOG WITH VISIBILITY
1 NM OR LESS LATE. 
.TUE...NW WIND 20 KT. SEAS 6 FT. 
.TUE NIGHT...NW WIND 20 KT. SEAS 6 FT. 
.WED...W WIND 15 KT. SEAS 6 FT. 
.THU...NW WIND 15 KT. SEAS 4 FT. 
.FRI...W WIND 10 KT. SEAS 4 FT. 

$$

PKZ042-240100-
CAPE DECISION TO CAPE EDGECUMBE-
400 AM AKDT MON JUL 23 2012 

.TODAY...NW WIND 20 KT. SEAS 6 FT. W SWELL. 
.TONIGHT...NW WIND 20 KT. SEAS 6 FT. W SWELL IN THE EVENING.
PATCHY FOG WITH VISIBILITY 1 NM OR LESS LATE. 
.TUE...W WIND 20 KT. SEAS 5 FT. 
.TUE NIGHT...W WIND 20 KT. SEAS 5 FT. 
.WED...NW WIND 15 KT. SEAS 5 FT. 
.THU...NW WIND 15 KT. SEAS 4 FT. 
.FRI...W WIND 10 KT. SEAS 4 FT. 

$$

PKZ043-240100-
CAPE EDGECUMBE TO CAPE FAIRWEATHER-
400 AM AKDT MON JUL 23 2012 

.TODAY...W WIND 15 KT. SEAS 6 FT. W SWELL. 
.TONIGHT...W WIND 15 KT. SEAS 5 FT. PATCHY FOG WITH VISIBILITY
1 NM OR LESS LATE. 
.TUE...W WIND 15 KT. SEAS 5 FT. 
.TUE NIGHT...W WIND 10 KT. SEAS 4 FT. 
.WED...NW WIND 15 KT. SEAS 5 FT. 
.THU...W WIND 15 KT. SEAS 5 FT. 
.FRI...W WIND 15 KT. SEAS 5 FT. 

$$

PKZ051-240100-
CAPE FAIRWEATHER TO ICY CAPE-
400 AM AKDT MON JUL 23 2012 

.TODAY...W WIND 10 KT. SEAS 5 FT. 
.TONIGHT...W WIND 10 KT. SEAS 5 FT. 
.TUE...W WIND 10 KT. SEAS 4 FT. 
.TUE NIGHT...W WIND 10 KT. SEAS 3 FT. 
.WED...W WIND 10 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 5 FT. 
.FRI...W WIND 15 KT. SEAS 5 FT. 

$$

PKZ052-240100-
ICY CAPE TO CAPE SUCKLING-
400 AM AKDT MON JUL 23 2012 

.TODAY...W WIND 10 KT. SEAS 5 FT. RAIN IN THE AFTERNOON. 
.TONIGHT...SW WIND 10 KT. SEAS 5 FT. RAIN LATE. 
.TUE...LIGHT WINDS BECOMING W 10 KT IN THE AFTERNOON. SEAS 4 FT.
.TUE NIGHT...W WIND 10 KT. SEAS 4 FT.
.WED...W WIND 10 KT. SEAS 4 FT. 
.THU...W WIND 15 KT. SEAS 4 FT. 
.FRI...W WIND 15 KT. SEAS 5 FT. 

$$

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Jul 22, 5:49 AM AKDT, 6 hours 43 minutes earlier.

Area forecast discussion, Jul 22, 5:49 AM AKDT, 6 hours 43 minutes before
SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
549 AM AKDT SUN JUL 22 2012

.SHORT TERM...1008 MB LOW NEAR KODIAK IS THE PARENT FEATURE FOR
AN OCCLUDED FRONT THAT EXTENDS S FROM THE VICINITY OF CORDOVA  AT
THIS TIME. THIS OCCLUDED FRONT IS PRECEDED BY AN ASSOCIATED BROAD
WARM SECTOR RIDGE THAT EXTENDS FROM THE EAST GULF OF ALASKA TO
OVER A SITKA TO JUNEAU LINE. THIS BROAD RIDGE IN TURN IS THE
SUPPORT FOR SEA STRATUS THAT COVERS MOST OF THE EASTERN GULF. THE
500H RIDGE ALOFT ALSO EXTENDS NE FROM OVER THE EASTERN GULF TO
OVER A SITKA TO JUNEAU LINE. THIS RIDGE ALOFT IS AIDING THE
DISSIPATION OF A WEAK FRONTAL BOUNDARY ALOFT OVER SOUTHERN
SOUTHEAST ALASKA.

 THE STRONGEST WINDS ARE TO BE IN NORTHERN LYNN CANAL THIS
AFTERNOON AND EVENING. CLEAR TO PARTLY CLOUDY CONDITIONS IN
SOUTHERN YUKON TERRITORY WILL PERMIT THERMAL PRESSURE FALLS THIS
AFTERNOON. THIS PRESSURE FALL, WHEN COMBINED WITH THE SURFACE AND
BOUNDARY LAYER RIDGE TO THE SOUTH, WILL RESULT IN A STRONG ENOUGH
PRESSURE GRADIENT TO SUPPORT GALE FORCE WINDS IN NORTHERN LYNN
CANAL THIS AFTERNOON AND EVENING.

.LONG TERM...MODELS SEEM TO BE SLOWLY CONVERGING ON A SOLUTION
FOR THE MIDWEEK TIME FRAME. ECMWF HAS SPED UP THE EASTWARD
MOVEMENT OF THE UPPER TROF ACROSS THE GULF...CLOSER TO THE
GFS/UKMET IDEA ON IT. THAT BEING SAID...ENDED UP LEAVING THE
MIDWEEK PERIOD AS IS IN GRIDS AS FAR AS POPS AND WINDS GO AFTER
COORD WITH WFO PAFC. WANT TO ALLOW MODELS TO CONTINUE TO CLOSE THE
DIFFERENCES ON THIS AND ALLOW LATER SHIFTS MAKE THE ADJUSTMENTS
FOR THIS.

 WHAT WAS ADJUSTED WAS CLOUD COVER AND TEMPS FOR MON-THU. GIVEN
THE SYNOPTIC ENVIRONMENT OF A LOW LEVEL RIDGE OVER THE GULF AND A
VERY STABLE LOWER LEVEL AIRMASS...WANTED TO PUT IN MORE CLOUDS
FOR THE GULF AND A GOOD PART OF THE INNER CHANNELS DUE TO MARINE
LAYER INFLUENCE. LOOKS LIKE THE SERN INNER CHANNELS WILL HAVE THE
LEAST AMOUNT OF CLOUD COVER ESPECIALLY LATER TUE INTO THU WITH
DECENT NW FLOW. THE PAYA AREA MAY SEE A DECENT BREAK WED INTO THU
AS LOWER LEVEL FLOW TURNS MORE NWLY THERE. MAX TEMPS WERE LOWERED
SOME IN AREAS WHERE CLOUD COVER WAS INCREASED ESPECIALLY TUE-THU.
OVERALL...FORECAST CONFIDENCE IS ABOUT AVERAGE EXCEPT FOR PRECIP
POTENTIAL...WHERE CONFIDENCE IS BELOW AVERAGE.

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...STRONG WIND FOR AKZ018.
MARINE...GALE WARNING FOR PKZ012.

&&

JBT/RWT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 10:31 AM AKDTGale WarningAJK3 hr
Jul 22, 1:52 PM AKDTSmall Craft AdvisoryAJK47 hr

Nearby

Small Craft Advisories in Alaska, 2012Every small craft advisory in 2012

Sources

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