Alert archive / Alaska / Wind Advisories in 2009

Wind Advisory 64, NWS Juneau, AK

September 25, 2009

NWS Juneau, AK issued this wind advisory at Sep 25, 2009, 4:30 AM AKDT. It took effect at Sep 25, 2009, 5:06 PM AKDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Sep 25, 2009, 4:30 AM AKDT (12:30 UTC)
In effect from
Sep 25, 2009, 5:06 PM AKDT
Expired
Sep 26, 2009, 3:53 AM AKDT
In force
11 hr
Issued by
NWS Juneau, AK

The text

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

000 
WWAK77 PAJK 251230
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
430 AM AKDT FRI SEP 25 2009

AKZ018-260000-
/X.NEW.PAJK.WI.Y.0064.090926T0500Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
430 AM AKDT FRI SEP 25 2009

...WIND ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 6 AM AKDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN JUNEAU HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM AKDT
SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL TIGHTEN THE
NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST MOUNTAINS
FRIDAY NIGHT. SOUTHERLY WINDS WILL GUST TO 40 MPH STARTING LATE
THIS EVENING BEFORE DIMINISHING LATE FRIDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 400 PM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

AKZ025>028-251400-
/X.CON.PAJK.WI.Y.0063.000000T0000Z-090925T1400Z/
JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND-
INNER CHANNELS FROM KUPREANOF ISLAND TO ETOLIN ISLAND-
DIXON ENTRANCE TO CAPE DECISION COASTAL AREA-
SOUTHERN INNER CHANNELS-
INCLUDING THE CITIES OF...JUNEAU...PETERSBURG...WRANGELL...KAKE...
CRAIG...KLAWOCK...KETCHIKAN...METLAKATLA
430 AM AKDT FRI SEP 25 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKDT EARLY THIS
MORNING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKDT EARLY THIS
MORNING. 

A STRONG FRONT WILL MOVE OVER SOUTHEAST ALASKA TONIGHT. SOUTHEAST
20 TO 30 MPH WITH GUSTS TO 45 MPH IN EXPOSED AREAS WILL PERSIST
OVERNIGHT. WINDS GUSTS TO 47 MPH HAVE BEEN OBSERVED AT THE AWOS
IN HYDABURG AND GUSTS TO AROUND 40 MPH HAVE BEEN OBSERVED AT THE
ASOS IN KETCHIKAN AND THE KETCHIKAN TIDE GAGE OVERNIGHT. HIGH
WINDS WILL PERSIST FOR THE NEXT FEW HOURS BEFORE BEGINNING TO
DIMINISH THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 6 AM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$
7 follow-up statements
000 
WWAK77 PAJK 251342
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
542 AM AKDT FRI SEP 25 2009

AKZ025-026-251445-
/X.EXP.PAJK.WI.Y.0063.000000T0000Z-090925T1400Z/
JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND-
INNER CHANNELS FROM KUPREANOF ISLAND TO ETOLIN ISLAND-
INCLUDING THE CITIES OF...JUNEAU...PETERSBURG...WRANGELL...KAKE
542 AM AKDT FRI SEP 25 2009

...WIND ADVISORY WILL EXPIRE AT 6 AM AKDT EARLY THIS MORNING...

THE WIND ADVISORY WILL EXPIRE AT 6 AM AKDT EARLY THIS MORNING. 

THIS WILL BE THE FINAL STATEMENT ON THIS EVENT.

$$

AKZ027-028-251700-
/X.EXT.PAJK.WI.Y.0063.000000T0000Z-090925T1700Z/
DIXON ENTRANCE TO CAPE DECISION COASTAL AREA-
SOUTHERN INNER CHANNELS-
INCLUDING THE CITIES OF...CRAIG...KLAWOCK...KETCHIKAN...
METLAKATLA
542 AM AKDT FRI SEP 25 2009

...WIND ADVISORY NOW IN EFFECT UNTIL 9 AM AKDT THIS MORNING...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 9 AM AKDT THIS MORNING. 

A STRONG FRONT MOVING OVER SOUTHEAST ALASKA THIS MORNING. SOUTHEAST 20
TO 30 MPH WITH GUSTS TO 45 MPH IN EXPOSED AREAS WILL PERSIST
EARLY THIS MORNING. WINDS GUSTS TO 47 MPH HAVE BEEN OBSERVED AT
THE AWOS IN HYDABURG AND GUSTS TO AROUND 40 MPH HAVE BEEN OBSERVED
AT THE ASOS IN KETCHIKAN AND THE KETCHIKAN TIDE GAGE OVERNIGHT.
HIGH WINDS WILL PERSIST FOR THE NEXT FEW HOURS BEFORE BEGINNING TO
DIMINISH THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 9 AM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

AKZ018-260000-
/X.CON.PAJK.WI.Y.0064.090926T0500Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
542 AM AKDT FRI SEP 25 2009

...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL TIGHTEN THE
NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST MOUNTAINS
FRIDAY NIGHT. SOUTHERLY WINDS WILL GUST TO 40 MPH STARTING LATE
THIS EVENING BEFORE DIMINISHING LATE FRIDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 400 PM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$
000 
WWAK77 PAJK 251433 CCA
NPWAJK

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE JUNEAU AK
542 AM AKDT FRI SEP 25 2009

AKZ025-026-251445-
/X.EXP.PAJK.WI.Y.0063.000000T0000Z-090925T1400Z/
JUNEAU BOROUGH AND NORTHERN ADMIRALTY ISLAND-
INNER CHANNELS FROM KUPREANOF ISLAND TO ETOLIN ISLAND-
INCLUDING THE CITIES OF...JUNEAU...PETERSBURG...WRANGELL...KAKE
542 AM AKDT FRI SEP 25 2009

...WIND ADVISORY WILL EXPIRE AT 6 AM AKDT EARLY THIS MORNING...

THE WIND ADVISORY WILL EXPIRE AT 6 AM AKDT EARLY THIS MORNING. 

THIS WILL BE THE FINAL STATEMENT ON THIS EVENT.

$$

AKZ027-028-251700-
/X.COR.PAJK.WI.Y.0063.000000T0000Z-090925T1700Z/
DIXON ENTRANCE TO CAPE DECISION COASTAL AREA-
SOUTHERN INNER CHANNELS-
INCLUDING THE CITIES OF...CRAIG...KLAWOCK...KETCHIKAN...
METLAKATLA
542 AM AKDT FRI SEP 25 2009

...WIND ADVISORY NOW IN EFFECT UNTIL 9 AM AKDT THIS MORNING...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 9 AM AKDT THIS MORNING. 

A STRONG FRONT MOVING OVER SOUTHEAST ALASKA THIS MORNING.
SOUTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH IN EXPOSED AREAS
WILL PERSIST EARLY THIS MORNING. WINDS GUSTS TO 47 MPH HAVE BEEN
OBSERVED AT THE AWOS IN HYDABURG AND GUSTS TO AROUND 40 MPH HAVE
BEEN OBSERVED AT THE ASOS IN KETCHIKAN AND THE KETCHIKAN TIDE GAGE
OVERNIGHT. HIGH WINDS WILL PERSIST FOR THE NEXT FEW HOURS BEFORE
BEGINNING TO DIMINISH THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 9 AM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

AKZ018-260000-
/X.CON.PAJK.WI.Y.0064.090926T0500Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
542 AM AKDT FRI SEP 25 2009

...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL TIGHTEN THE
NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST MOUNTAINS
FRIDAY NIGHT. SOUTHERLY WINDS WILL GUST TO 40 MPH STARTING LATE
THIS EVENING BEFORE DIMINISHING LATE FRIDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 400 PM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$
000 
WWAK77 PAJK 251653
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
853 AM AKDT FRI SEP 25 2009

AKZ027-251800-
/X.EXP.PAJK.WI.Y.0063.000000T0000Z-090925T1700Z/
DIXON ENTRANCE TO CAPE DECISION COASTAL AREA-
INCLUDING THE CITIES OF...CRAIG...KLAWOCK
853 AM AKDT FRI SEP 25 2009

...WIND ADVISORY WILL EXPIRE AT 9 AM AKDT THIS MORNING...

THE WIND ADVISORY WILL EXPIRE AT 9 AM AKDT THIS MORNING. 

WINDS GUSTS TO 47 MPH WERE OBSERVED AT THE AWOS IN HYDABURG
EARLIER THIS MORNING. WIND GUSTS HAVE DIMINISHED TO AROUND 30
MPH... A FEW LOCALLY HIGHER GUSTS MAY CONTINUE FOR A COUPLE OF
HOURS BUT THE STRONGER WINDS SHOULD BE OVER. 

THIS WILL BE THE FINAL STATEMENT ON THIS EVENT.

$$

AKZ028-252000-
/X.EXT.PAJK.WI.Y.0063.000000T0000Z-090925T2000Z/
SOUTHERN INNER CHANNELS-
INCLUDING THE CITIES OF...KETCHIKAN...METLAKATLA
853 AM AKDT FRI SEP 25 2009

...WIND ADVISORY NOW IN EFFECT UNTIL NOON AKDT TODAY...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL NOON AKDT TODAY. 

A STRONG FRONT MOVING OVER SOUTHEAST ALASKA THIS MORNING.
SOUTHEAST WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH IN EXPOSED
AREAS WILL PERSIST EARLY THIS MORNING. WINDS GUSTS TO AROUND 40
MPH HAVE BEEN OBSERVED AT THE ASOS IN KETCHIKAN AND THE KETCHIKAN
TIDE GAGE OVERNIGHT. HIGH WINDS WILL PERSIST FOR THE NEXT FEW
HOURS BEFORE BEGINNING TO DIMINISH THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY NOON AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

AKZ018-260100-
/X.CON.PAJK.WI.Y.0064.090926T0500Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
853 AM AKDT FRI SEP 25 2009

...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL TIGHTEN THE
NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST MOUNTAINS
FRIDAY NIGHT. SOUTHERLY WINDS WILL GUST TO 40 MPH STARTING LATE
THIS EVENING BEFORE DIMINISHING LATE FRIDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 400 PM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

BEZENEK
000 
WWAK77 PAJK 251949
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
1149 AM AKDT FRI SEP 25 2009

AKZ028-252100-
/X.EXP.PAJK.WI.Y.0063.000000T0000Z-090925T2000Z/
SOUTHERN INNER CHANNELS-
INCLUDING THE CITIES OF...KETCHIKAN...METLAKATLA
1149 AM AKDT FRI SEP 25 2009

...WIND ADVISORY WILL EXPIRE AT NOON AKDT TODAY...

THE WIND ADVISORY WILL EXPIRE AT NOON AKDT TODAY. 

BREEZY CONDITIONS CONTINUING TO DIMINISH THROUGH THE AFTERNOON.
SOUTHEAST WINDS AROUND 15 MPH WITH OCCASIONAL GUSTS TO 25 MPH.
THIS WILL BE THE FINAL STATEMENT ON THIS EVENT.

$$

AKZ018-260000-
/X.CON.PAJK.WI.Y.0064.090926T0500Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
1149 AM AKDT FRI SEP 25 2009

...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL TIGHTEN THE
NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST MOUNTAINS
FRIDAY NIGHT. SOUTHERLY WINDS WILL GUST TO 40 MPH STARTING LATE
THIS EVENING BEFORE DIMINISHING LATE FRIDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 400 PM AKDT FRIDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$
000 
WWAK77 PAJK 252347
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
347 PM AKDT FRI SEP 25 2009

AKZ018-261315-
/X.CON.PAJK.WI.Y.0064.090926T0500Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
347 PM AKDT FRI SEP 25 2009

...WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 AM
AKDT SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL TIGHTEN THE
NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST MOUNTAINS
FRIDAY NIGHT. SOUTHERLY WINDS WILL INCREASE TO 25 MPH WITH GUSTS
TO 40 MPH THROUGH THE EVENING HOURS BEFORE DIMINISHING EARLY
SATURDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 500 AM AKDT SATURDAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$
000 
WWAK77 PAJK 260106
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
506 PM AKDT FRI SEP 25 2009

AKZ018-261400-
/X.EXT.PAJK.WI.Y.0064.090926T0106Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
506 PM AKDT FRI SEP 25 2009

...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM AKDT SATURDAY...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 6 AM AKDT SATURDAY. 

A SURFACE RIDGE BUILDING OVER THE PANHANDLE WILL CONTINUE TO TIGHTEN
THE NORTH SOUTH PRESSURE GRADIENT ALONG THE NORTHERN COAST
MOUNTAINS FRIDAY NIGHT. SOUTHERLY WINDS 20 TO 30 MPH WITH GUSTS TO
50 MPH WILL CONTINUE THROUGH THE EVENING HOURS BEFORE DIMINISHING
EARLY SATURDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY 500 AM AKDT SATURDAY OR SOONER
IF CONDITIONS WARRANT.

&&

$$
000 
WWAK77 PAJK 261153
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
353 AM AKDT SAT SEP 26 2009


AKZ018-261300-
/X.CAN.PAJK.WI.Y.0064.000000T0000Z-090926T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
353 AM AKDT SAT SEP 26 2009

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN JUNEAU HAS CANCELLED THE WIND
ADVISORY. 

WINDS WILL CONTINUE TO BE WINDY WITH SOUTH WINDS 15 TO 25
MPH...GUSTS AROUND 35 MPH.

THIS WILL BE THE LAST STATEMENT ON THIS EVENT.

$$

AKZ022-023-026-262000-
/X.NEW.PAJK.WI.Y.0065.090926T1153Z-090926T2000Z/
SALISBURY SOUND TO CAPE FAIRWEATHER COASTAL AREA-
CAPE DECISION TO SALISBURY SOUND COASTAL AREA-
INNER CHANNELS FROM KUPREANOF ISLAND TO ETOLIN ISLAND-
INCLUDING THE CITIES OF...ELFIN COVE...PELICAN...SITKA...
PORT ALEXANDER...PETERSBURG...WRANGELL...KAKE
353 AM AKDT SAT SEP 26 2009

...WIND ADVISORY IN EFFECT UNTIL NOON AKDT TODAY...

THE NATIONAL WEATHER SERVICE IN JUNEAU HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL NOON AKDT TODAY. 

WINDY CONDITIONS THIS MORNING AS WEST TO SOUTHWEST WIND 15 TO 25
MPH WITH GUSTS TO 45 MPH EFFECT THE OUTER COASTAL AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WIND SPEED OR FREQUENT GUSTS
WILL OCCUR BETWEEN 40 AND 60 MPH.

THIS STATEMENT WILL BE UPDATED BY NOON AKDT TODAY OR SOONER IF
CONDITIONS WARRANT.

&&

$$

What forecasters said that day

The local office's own words before this wind 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 wind advisory went out at Sep 24, 2:30 PM AKDT, 14 hours earlier.

Area forecast discussion, Sep 24, 2:30 PM AKDT, 14 hours before
SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
230 PM AKDT THU SEP 24 2009

.SHORT TERM...SATELLITE REVEALS 984MB LOW SOUTH OF THE AK
PENISULA WITH ASSOCIATED STRONG OCCLUDED FRONT EXTENDING EAST
FROM THE LOW AND MOVING NORTHEAST THROUGH THE NORTHERN AND
EASTERN GULF ATTM. AREAS OF RAIN...HEAVY AT TIMES...AHEAD OF
FRONT CONTINUES TO MOVE NORTHEAST THROUGH THE PANHANDLE. JUNEAU
WFO PICKED NEARLY ONE QUARTER OF AN INCH WITH FIRST AREA OF RAIN.
RAIN WILL CONTINUE TO EXPAND IN COVERAGE AND INTENSITY THIS
AFTERNOON. 6HR QPF RATES OF ONE HALF TO THREE QUARTERS OF AN INCH
ON TAP STARTING THIS EVENING AND TONIGHT FOR MOST LOCATIONS. RAIN
WILL BE HEAVY AT TIMES. LOW PRESSURE SYSTEM IS VERY MOIST STEM
GIVEN THE REMNANTS OF TYPHOON CHOI WAN ARE EMBEDDED IN THE
SYSTEM.

WINDS WILL INCREASE AS THE FRONT APPROACHES ESPECIALLY ALONG THE
OUTER COAST WHERE WIND ADVISORIES ARE POSTED FOR ZONES 22 AND 23
THIS AFTERNOON AND ZONE 27 THIS EVENING. BARRIER JET INDICATED
ALONG NORTHERN COAST WILL BRING GUSTY CONDITIONS WEST OF PAYA BUT
SHOULD BE SHORT LIVED. WIND ADVISORY ALSO POSTED FOR ZONE 28 THIS
EVENING WITH FAVORABLE SOUTHERLY FETCH. GALES FOR OFFSHORE AND ALL
OUTSIDE WATERS THIS EVENING.

PARENT LOW CONTINUES TO SLOWLY FILL JUST EAST OF KODIAK OVERNIGHT
AS FRONT CONTINUES TO MOVE NORTHEAST THROUGH THE PANHANDLE.
GRADIENT RELAXES IN SOUTHERN ZONES LATE TONIGHT BUT INCREASES
AGAIN TOMORROW EVENING AS SHORTWAVE ROTATING AROUND PARENT LOW
MOVES INTO THE CENTRAL GULF. WINDS INCREASE TO GALES IN MZ 310 IN
RESPONSE. ONSHORE FLOW TOMORROW BEHIND FRONT LEADING TO
CATEGORICAL TO LIKELY OPS FOR PANHANDLE.

MODELS WHERE IN GOOD AGREEMENT AGAIN TODAY WITH GFS ECMWF AND
UKMET VERY SIMILAR ON POSITION...TRACK AND STRENGTH OF LOW IN
WESTERN GULF AND CONSISTENT WITH THE TIMING OF THE FROPA THROUGH
THE PANHANDLE. NAM12 DID BRING STRONGER WINDS ALOFT OVER PANHANDLE
WITH 60KTS OVER PAJN VS 45 KTS WITH REST OF THE MODELS. OPTED TO
BLEND 06Z WSWRF TO CAPTURE SMALL SCALE FEATURES AND GRADIENTS INTO
A BLEND OF 12 GFS AND INHERITED GRIDS FOR THE PRESSURE AND WIND
FIELDS THROUGH THE TONIGHT PERIOD. FOR THE TOMORROW PERIOD A BLEND
OF INHERITED GRIDS AND GFS WAS USED. FORECAST CONFIDENCE IF ABOVE
AVERAGE BASED ON RUN TO RUN CONSISTENCY WITH THE GFS AND MINIMAL
SPREAD BETWEEN MODEL FAMILIES.

&&

.LONG TERM...THROUGH THE WEEKEND THE 12Z MODEL RUNS WERE IN
FAIRLY GOOD AGREEMENT. THERE WERE SOME BRIEF PERIODS LARGER
DISCREPANCY HEADING AROUND SUNDAY NIGHT OVER THE EASTERN GULF.
HOWEVER MODELS RE-CONVERGE AND THERE SEEMS TO BE GOOD AGREEMENT
EVEN INTO MID WEEK YET. BASED THE GRID ADJUSTMENTS THROUGH SUNDAY
ON THE GFS SOLUTION AND THEN WAS USING HPC GUIDANCE FOR THE LAST
FEW DAYS.

AS THE MAIN LOW WEAKENING THROUGH FRIDAY NIGHT MOVES INLAND NEAR
PRINCE WILLIAM SOUND A FAIRLY STRONG WESTERLY GALE WILL DEVELOP
OVER THE GULF AND WILL BUILD A STRONG SWELL TO MOVE THE COASTAL
AREAS FOR THE WEEKEND EXPECT SEAS 20+ FT FOR MARINES 41>43. NEXT
LOW WILL MOVE INTO THE GULF BY SUNDAY AFTERNOON.

AHEAD OF THE NEXT MAJOR SYSTEM MOVING TO THE BERING SUNDAY A
RIDGE IS BUILT UP IN ADVANCE OF THIS LOW. THE RIDGE WILL MOVE EAST
THROUGH MID-WEEK. AT THE PRESENT THE FRONTAL BAND OF THIS LAST LOW
SHOULD MOVE INTO THE GULF TUESDAY AND SHOULD IMPACT SOUTHEAST
ALASKA BY WEDNESDAY.

CONFIDENCE IS GENERALLY ABOVE AVERAGE FOR THIS FORECAST PACKAGE.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...WIND ADVISORY FROM 9 PM THIS EVENING TO 6 AM AKDT FRIDAY FOR
     AKZ027-028.
         WIND ADVISORY UNTIL MIDNIGHT AKDT TONIGHT FOR AKZ022-023.
MARINE...GALE WARNING FOR PKZ022-033-036-041>043-051-052.
         SMALL CRAFT ADVISORY FOR PKZ011>013-021-031-032-034-035.

&&

CCC/BEZENEK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 4:00 PM AKDTGale WarningAJK3 hr
Sep 24, 4:00 PM AKDTGale WarningAJK12 hr
Sep 24, 7:00 PM AKDTStorm WarningAJK9 hr
Sep 24, 8:30 PM AKDTStorm WarningAJK8 hr
Sep 25, 4:00 AM AKDTSmall Craft AdvisoryAJK12 hr
Sep 25, 4:00 AM AKDTSmall Craft AdvisoryAJK32 hr

Nearby

Wind Advisories in Alaska, 2009Every wind advisory in 2009

Sources

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