Wind Advisory 30, NWS Juneau, AK

000 
WWAK77 PAJK 051351
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
451 AM AKST THU MAR 5 2009

AKZ018-060100-
/X.CON.PAJK.WI.Y.0030.090306T0900Z-090307T0600Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
451 AM AKST THU MAR 5 2009

...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM
AKST FRIDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM
AKST FRIDAY. 

SOUTH WINDS OF 20 TO 30 MPH ARE EXPECTED TO DEVELOP THIS EVENING
WITH GUSTS TO 50 MPH LATE TONIGHT THROUGH FRIDAY.

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 AKST THUDAY OR SOONER IF
CONDITIONS WARRANT.

$$

000 
WWAK77 PAJK 060052
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
352 PM AKST THU MAR 5 2009

AKZ018-060700-
/X.EXT.PAJK.WI.Y.0030.090306T0900Z-090307T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
352 PM AKST THU MAR 5 2009

...WIND ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM AKST
SATURDAY...

THE WIND ADVISORY IS NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM
AKST SATURDAY. 

SOUTH WINDS OF 20 TO 30 MPH ARE EXPECTED TO DEVELOP THIS EVENING
WITH GUSTS TO 50 MPH LATE TONIGHT THROUGH FRIDAY. WINDS WILL
BRIEFLY BECOME LIGHT LATE FRIDAY AFTERNOON BEFORE SWITCHING
AROUND TO THE NORTH AND INCREASING TO 20 TO 30 MPH WITH GUSTS TO
45 MPH FRIDAY EVENING.

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

THIS STATEMENT WILL BE UPDATED BY 1000 PM AKST THURSDAY OR SOONER IF
CONDITIONS WARRANT.

$$

000 
WWAK77 PAJK 060640
NPWAJK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JUNEAU AK
940 PM AKST THU MAR 5 2009


AKZ018-060745-
/X.CAN.PAJK.WI.Y.0030.090306T0900Z-090307T1400Z/
TAIYA INLET AND KLONDIKE HIGHWAY-
INCLUDING THE CITY OF...SKAGWAY
940 PM AKST THU MAR 5 2009

...WIND ADVISORY IS CANCELLED...

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

THE WIND ADVISORY HAS BEEN ABSORBED INTO THE WINTER WEATHER
ADVISORY BEING ISSUED. PLEASE SEE THAT STATEMENT FOR FURTHER
INFORMATION. 

$$

BEZENEK

SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
1251 PM AKST WED MAR 4 2009

.SHORT TERM...THE LATEST SATELLITE IMAGERY SHOWS THE CLOUDS OVER
THE PANHANDLE DISSIPATING FROM NE TO THE SW. MOSTLY SUNNY SKIES
ARE OVER MAJORITY OF THE NORTHERN HALF OF THE AREAS WITH CLOUDS
LINGERING OVER THE SOUTHERN HALF. WINDS ARE RELATIVELY ON THE
LIGHT SIDE WITH THE STRONGEST WINDS IN LYNN CANAL WITH 20 TO
30 KT AND OVER THE FAR SOUTHERN AREAS WITH AROUND 15 TO 20KT OF
WIND. A 1025MB HIGH OVER THE YUKON AND A WEAK INVERTED TROF OVER
THE SOUTHERN THIRD AND DIXON ENTRANCE IS CREATING A MODERATE
PRESSURE GRADIENT. THESE WINDS WILL SLOWLY DIMINISH THROUGH THE
EARLY EVENING AS THE HIGH SLIDES EAST IN THE NWT.

 THE UPPER HIGH OVER THE WESTERN GULF IS PRODUCING OFFSHORE FLOW
THAT IS PUSHING THE CLOUDS AWAY FROM THE PANHANDLE TODAY. THIS
HIGH WILL SLIDE TO THE EAST BUT THERE IS A SHORTWAVE THAT IS
MOVING THROUGH THE TOP OF THE RIDGE THAT WILL INCREASE CLOUDS
OVER THE AREA TONIGHT THROUGH THURSDAY. THE FAR SOUTHERN AREAS
WILL SEE SOME CLOUDS MOVE OVER THE AREA BUT WILL REMAIN PARTLY
CLOUDY THROUGH TOMORROW.

 A WEAK SURFACE TROF WILL DEVELOP OVER THE WESTERN GULF THIS
EVENING AND DRIFT NE GULF BY THURSDAY AFTERNOON. THIS TROF WILL
BE ASSOCIATED WITH WAA AND PUSH A WEAK WARM FRONT OVER NORTHERN
GULF AND PAYA THIS EVENING AND THURSDAY. THIS SYSTEM IS VERY WEAK
AND DOES NOT HAVE MUCH UPPER LEVEL SUPPORT AND AS IT MOVES
THROUGH THE RIDGE IT LOOKS LIKE THE MODELS ARE SHEARING IT APART.
SO WITH THAT SAID CONTINUE THE SNOW LIKELY FOR PAYA WITH LESS
THAN AN INCH OF SNOW THROUGH THURSDAY WITH JUST A 40 PERCENT FOR
TONIGHT. THE REST OF THE PANHANDLE WILL SEE JUST A 30 TO
20 PERCENT CHANCE OF SNOW OVER THE NE COAST AND NORTH CENTRAL
AREAS. THERE SEEMS TO BE MORE OFFSHORE FLOW THAN ONSHORE TO HAVE
ANY EXTRA OROGRAPHIC LIFTING MECHANISMS TO PRODUCE ANYTHING MORE
THAT JUST A CHANCE. THERE IS FAIR FORECASTER CONFIDENCE IN THIS
FORECAST.

.LONG TERM...LARGEST CHANGES ARE FOR LOWER TEMPERATURES ESPECIALLY
FRI NIGHT AND SATURDAY NIGHT. SURFACE WINDS FOR THU NIGHT THROUGH
FRI HAVE BEEN INCREASED OVER THE PREVIOUS FORECAST AS COLD FRONT
MOVG E ACRS THE GLFLASK HAS A STRONGER THERMAL CONTRAST ACCORDING
TO THE GFS CONSENSUS WITH OTHER MODELS. CLIMATE HAS BEEN FACTORED
IN FOR NEXT MON AND TUE.

STRONG AND BROAD RIDGE ALOFT IS PROVIDING ANTICYCLONIC FLOW OVER
THE ENTIRE GULF OF ALASKA AT THIS TIME. AT 12Z THU THIS RIDGE
ALOFT WILL EXTEND N FM THE NPAC TO OVER A PACV TO PAFA LINE. THIS
RIDGE WILL HAVE GAINED A HIGH AMPLITUDE BY 12Z THU. THIS RIDGE
ALOFT WILL CONTINUE E REACHING A SITKA TO JUNEAU LINE 00Z FRIDAY
AS A STRONG TROUGH ALOFT MOVES E OVER A BETHEL TO SAND POINT LINE.
THIS TROUGH ALOFT IS A FAST MOVING FEATURE AND 12Z FRI SHOULD
EXTEND S FM OVR SEWARD.

AT 12Z FRI SURFACE FRONTAL BOUNDARY IS INDICATED TO BE EXTENDING
S INTO THE GULF OF ALASKA FM THE VCNTY OF CORDOVA, BASED ON
1000 MB VORTICITY IN THE 40 KM GFS. THIS POSITION IS CONSISTENT
WITH THE UPPER LEVEL FEATURES DISCUSSED IN THE PARAGRAPH ABOVE.
THE ASSOCD SURFACE LOW SHOULD BE ABOUT 995 MB IN THE VICINITY
OF THE US-CANADIAN BORDER E OF TOK.

NAM USED FOR BOTH THE SHORT RANGE ABOVE AND IS ALSO FACTORED IN
THROUGH THROUGH THURSDAY.

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...SMALL CRAFT ADVISORY FOR PKZ012.

ABJ/JBT