Brisk Wind Advisory 151, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
647 AM AST SUN DEC 2 2007

.DISCUSSION...
A REALLY BIG PATTERN CHANGE IS CURRENTLY UNDERWAY ACROSS NORTHERN
ALASKA. RIDICULOUSLY WARM AIR ALOFT ASSOCIATED WITH HIGH PRESSURE
RIDGING STRADDLING THE WESTERN HALF OF ALASKA THIS MORNING WILL
SWING NORTH OVER THE ARCTIC OCEAN DURING THE NEXT 24 HOURS. THE
12Z BARROW RAOB RECORDED AN UNBELIEVABLY WARM 50 DEGREES F ABOUT
1700 FEET ABOVE THE SURFACE. TEMPERATURES DOWN ON THE GROUND WERE
IN THE TEENS BUT DOWN THE COAST CAPE LISBURNE SHOT UP INTO THE
40S YESTERDAY AFTERNOON.

A DRAMATIC EXCHANGE OF AIR MASSES IS TAKING SHAPE. LOW PRESSURE
ALOFT ALONG WITH VERY COLD AIR OVER NORTHWEST CANADA WILL SLIDE
WESTWARD INTO MAINLAND ALASKA BY MONDAY AFTERNOON. 850 MB
TEMPERATURES WILL PLUMMET FROM +7C TO -25C IN ABOUT 36 HOURS OVER
THE WESTERN INTERIOR. THIS PUSH OF COLD AIR WILL BE ACCOMPANIED
BY STRONG GUSTY NORTHEAST TO EAST WINDS ACROSS A WIDE SWATH OF THE
STATE AS A VERY TIGHT PRESSURE GRADIENT DEVELOPS. WINDS WILL REACH
ADVISORY AND IN SOME CASES WARNING LEVELS ACROSS THE INTERIOR.
WIND CHILLS WILL ALSO BE AN ISSUE AS THE COLDER AIR MOVES OVER THE
REGION. RECENT ABOVE FREEZING TEMPERATURES AND A LACK OF FRESHLY
FALLEN SNOW WILL PREVENT ANY SIGNIFICANT BLOWING SNOW IN THE
INTERIOR...ALTHOUGH THIS MAY NOT BE THE CASE FARTHER NORTH ALONG
THE ARCTIC COAST.

THE COLD PATTERN WILL BE SHORT LIVED THOUGH AS LOW PRESSURE MOVES
INTO THE BERING SEA BY MID-WEEK AND SHIFTS THE FLOW TO THE WEST
AND SOUTHWEST BY THE END OF THE WEEK. THIS MAY BRING A CHANCE FOR
SOME MUCH NEEDED SNOW TO AREAS SOUTH OF THE BROOKS RANGE.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FOR AKZ216-AKZ217-AKZ219-AKZ220-AKZ221-AKZ222-
AKZ223-AKZ225-AKZ226.

WIND CHILL ADVISORY FOR AKZ219-AKZ220-AKZ223-AKZ226.

HIGH WIND WARNING FOR AKZ219-AKZ221.

HEAVY FREEZING SPRAY WARNING FOR PKZ200-PKZ210.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ210.

BRISK WIND ADVISORY FOR PKZ225-PKZ230-PKZ240-PKZ245.
&&

DEC 07

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FAIRBANKS AK
1037 AM AST SUN DEC 02 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 AM     NON-TSTM WND GST KEYSTONE RIDGE          64.92N 148.27W
12/02/2007  E40 MPH                             AK   CO-OP OBSERVER

&&

RT