High Wind Warning 24, NWS Anchorage, AK

284 
WWAK71 PAFC 230117
NPWAER

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
417 PM AKST WED DEC 22 2010

AKZ125-231500-
/X.CON.PAFC.HW.W.0024.000000T0000Z-101223T2100Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
417 PM AKST WED DEC 22 2010

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST THURSDAY
NEAR WHITTIER...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST THURSDAY. 

A STRONG PRESSURE GRADIENT ALONG THE EASTERN KENAI PENINSULA HAS
PRODUCED SOUTHWEST WINDS 35 TO 50 MPH WITH GUSTS TO 80 MPH NEAR
WHITTIER. WINDS WILL BEGIN TO DIMINISH BY MIDDAY THURSDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

170 
WWAK71 PAFC 230227
NPWAER

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
527 PM AKST WED DEC 22 2010

AKZ131-231530-
/X.EXB.PAFC.HW.W.0024.000000T0000Z-101224T0100Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
527 PM AKST WED DEC 22 2010

...HIGH WIND WARNING IN EFFECT UNTIL 4 PM AKST THURSDAY...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 4 PM AKST THURSDAY. 

WINDS HAVE INCREASED THIS AFTERNOON THROUGH THOMPSON PASS AND IN
TOWN AS A RESULT OF AN INCREASED PRESSURE GRADIENT ACROSS THE
MOUNTAIN RANGE. NORTHEAST WINDS 40 TO 55 MPH WITH GUSTS AS HIGH AS
85 MPH CAN BE EXPECTED THROUGH THURSDAY AFTERNOON. LOCAL AREAS OF
BLOWING AND DRIFTING SNOW IS POSSIBLE AS WELL. TEMPERATURES NEAR
THE PASS 10 TO 20 ABOVE. THE COLD AIR COUPLED WITH THE STRONG
WINDS WILL RESULT IN WIND CHILLS 15 BELOW TO 25 BELOW ZERO. 

THURSDAY AFTERNOON...THE PRESSURE GRADIENT IS EXPECTED TO RELAX
AND THE WINDS SUBSIDE BELOW WARNING CRITERIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

AKZ125-231530-
/X.CON.PAFC.HW.W.0024.000000T0000Z-101223T2100Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
527 PM AKST WED DEC 22 2010

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST THURSDAY
NEAR WHITTIER...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST THURSDAY. 

A STRONG PRESSURE GRADIENT ALONG THE EASTERN KENAI PENINSULA HAS
PRODUCED SOUTHWEST WINDS 35 TO 50 MPH WITH GUSTS TO 80 MPH NEAR
WHITTIER. WINDS WILL BEGIN TO DIMINISH BY MIDDAY THURSDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

879 
WWAK71 PAFC 231412
NPWAER

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
512 AM AKST THU DEC 23 2010

AKZ125-232100-
/X.CON.PAFC.HW.W.0024.000000T0000Z-101223T2100Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
512 AM AKST THU DEC 23 2010

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST TODAY NEAR 
WHITTIER...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON AKST TODAY. 

SOUTHWEST WINDS 25 TO 40 MPH WITH GUSTS 55 TO 75 MPH WILL PERSIST 
NEAR WHITTIER THROUGH LATE THIS MORNING AND THEN BEGIN TO SLOWLY
DIMINISH THIS AFTERNOON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

AKZ131-240100-
/X.CON.PAFC.HW.W.0024.000000T0000Z-101224T0100Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
512 AM AKST THU DEC 23 2010

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM AKST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM AKST THIS
AFTERNOON. 

NORTHEAST WINDS 20 TO 35 MPH WITH GUSTS TO 85 MPH WILL CONTINUE
THROUGH THIS AFTERNOON. LOCAL AREAS OF BLOWING AND DRIFTING SNOW
CAN ALSO BE EXPECTED. WINDS WILL THEN DIMINISH A BIT LATE THIS
AFTERNOON THROUGH TONIGHT...ALTHOUGH LOCALLY STRONG WIND GUSTS OF
40 TO 60 MPH WILL PERSIST THROUGH CHANNELED AREAS THROUGH FRIDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

700 
WWAK71 PAFC 232100
NPWAER

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
1200 PM AKST THU DEC 23 2010

AKZ125-232200-
/X.CAN.PAFC.HW.W.0024.000000T0000Z-101223T2100Z/
WESTERN PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...WHITTIER...SEWARD...GIRDWOOD...
MOOSE PASS
1200 PM AKST THU DEC 23 2010

...HIGH WIND WARNING HAS EXPIRED FOR WHITTIER...

WARNING LEVEL WINDS HAVE DIMINISHED...HOWEVER SOUTHWEST WINDS
WITH GUSTS 50 TO 65 MPH ARE EXPECTED TO CONTINUE THROUGH THIS
AFTERNOON.

$$

AKZ131-240700-
/X.EXT.PAFC.HW.W.0024.000000T0000Z-101224T0700Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
1200 PM AKST THU DEC 23 2010

...HIGH WIND WARNING NOW IN EFFECT UNTIL 10 PM AKST THIS
EVENING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 10 PM AKST THIS
EVENING. 

NORTHEAST WINDS 20 TO 35 MPH WITH GUSTS TO 85 MPH WILL CONTINUE
THROUGH THIS EVENING. WINDS WILL THEN DIMINISH OVERNIGHT...ALTHOUGH
LOCALLY STRONG WIND GUSTS OF 40 TO 60 MPH WILL PERSIST THROUGH
CHANNELED AREAS THROUGH FRIDAY. LOCAL AREAS OF BLOWING AND
DRIFTING SNOW CAN ALSO BE EXPECTED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

478 
WWAK71 PAFC 240611
NPWAER

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
911 PM AKST THU DEC 23 2010

AKZ131-240715-
/X.CAN.PAFC.HW.W.0024.000000T0000Z-101224T0700Z/
NORTHEAST PRINCE WILLIAM SOUND-
INCLUDING THE CITIES OF...VALDEZ...THOMPSON PASS
911 PM AKST THU DEC 23 2010

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS CANCELLED THE HIGH
WIND WARNING. 

WINDS HAVE DIMINISHED ACROSS THE REGION BELOW WARNING CRITERIA.
GUSTY EAST TO NORTHEASTERLY WINDS WILL PERSIST THROUGH THE NIGHT
WITH LOCAL GUSTS TO 55 MPH POSSIBLE.

$$

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 AM AKST WED DEC 22 2010

.MODEL DISCUSSION...
MODELS IN VERY GOOD AGREEMENT THROUGH 120 HOURS. NAM PREFERRED IN
THE SHORT TERM DUE TO SUPERIOR HANDLING OF PRESSURE GRADIENT ALONG
GULF COAST AND EASTERN BERING SEA. TRENDED MID AND LONG RANGE
FORECAST TOWARDS THE TUE HPC SOLUTION.

.UPPER LEVELS...
UPPER LEVEL RIDGE OF HIGH PRESSURE OVER THE NORTH PACIFIC AND
WESTERN BERING HOLDS THROUGH THE REMAINDER OF THE WEEK. A WELL
ORGANIZED UPPER LOW CENTER JUST SOUTH OF THE GULF OF ALASKA
GRADUALLY WEAKENS THROUGH THURSDAY NIGHT THEN BEGINS TO GRADUALLY
MIGRATE NORTHWESTWARD IN RESPONSE TO RIDGE DEVELOPMENT OVER WESTERN
CANADA.

.SURFACE ANALYSIS AND SHORT TERM FORECAST...
A 987 MB LOW IN THE CENTRAL GULF OF ALASKA GRADUALLY WEAKENS AND
DRIFTS SOUTHWARD THROUGH THURSDAY NIGHT. A HIGH AMPLITUDE TROUGH OF
LOW PRESSURE DEVELOPS ALONG THE NORTH GULF COAST WED MORNING AND
PERSISTS THROUGH THURSDAY.
TIGHT PRESSURE GRADIENT ALONG GULF COAST AND OVER THE EASTERN BERING
SEA GRADUALLY SLACKENS FROM THE WEST AS THE GULF LOW DROPS
SOUTHWARD. NORTHERLY GAP WINDS GUSTING 50 TO 100 MPH THROUGH
CHANNELED AREAS OF THE EASTERN ALEUTIANS AND ALASKA PENINSULA SHOULD
TAPER OFF BY EARLY THIS EVENING. GUSTY NORTH WINDS 30 TO 45 MPH WILL
PERSIST ACROSS KODIAK ISLAND THROUGH TONIGHT.   NORTHERLY GAP WINDS
OF 25 TO 50 MPH THROUGH CHANNELED AREAS OF THE CHUGACH RANGE AND
ACROSS EXPECTED TO LINGER THROUGH THURSDAY.
HIGH PRESSURE PERSISTS OVER THE CENTRAL BERING THROUGH THURSDAY BUT
A STRONG NORTH PACIFIC LOW MOVES UP FROM THE SOUTH TO JUST SOUTH OF
SHEMYA THURSDAY NIGHT WILL SPREAD RAIN SNOW AND EASTERLY GALES
ACROSS THE WESTERN ALEUTIANS THURSDAY NIGHT.

.LONG TERM FORECAST...
LOW PRESSURE PERSISTS SOUTH OF THE GULF OF ALASKA. HIGH PRESSURE
OVER THE BERING GIVES WAY TO A RAPIDLY ADVANCING OCCLUDED FRONT
BEGINNING FRIDAY. EXPECT INCREASINGLY COLD AND DRY AND PERIODICALLY
WINDY CONDITIONS TO PREVAIL ACROSS SOUTHWESTERN AND SOUTHCENTRAL
ALASKA FOR THE WEEKEND. EXPECT A RETURN TO WARM WET AND WINDY FOR
THE ALEUTIANS AND BERING SEA.

.AER/ALU...WATCH/WARNING SUMMARY
PUBLIC...HIGH WIND 181
MARINE...GALE 121 129 130 132 138 160 165 171 180 185
         STORM 150 155 170
         HEAVY SPRAY 121 129 130 138 140 141 150 160 165 180
FIRE WEATHER...NONE.

ASB DEC 10