Wind Chill Advisory 22, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
300 PM AST THU JAN 24 2008

.SYNOPSIS...
A STRONG 975 MB LOW IN THE CENTRAL BERING SEA WILL MOVE TO BRISTOL
BAY AS A 1011 MB LOW BY 3PM FRI THEN CONTINUE EAST AND WEAKEN.
THE ASSOCIATED OCCLUDED FRONT FROM THE LOW TO THE YUKON DELTA WILL
MOVE TO THE DELTA TO MCGRATH TO DENALI TO SEWARD BY 3AM FRI AND
DISSIPATING ALONG THE GULF OF ALASKA COAST FRI PM AS A 981 MB LOW
DEVELOPS NEAR YAKUTAT. THIS IS CAUSING NEAR BLIZZARD AT ZONES 213
AND 214 NOW BUT THAT WILL IMPROVE THIS EVENING AS THE FRONT
STRETCHES EAST AND THE WINDS DECREASE. SNOW WILL SPREAD EAST INTO
THE SOUTHWEST INTERIOR THIS EVENING AND TO THE FAIRBANKS AREAS
AFTER MIDNIGHT. EXPECT 2 TO 4 INCHES OF SNOW WITH THIS...HEAVIEST
AMOUNTS IN UPSLOPE AREAS SUCH AS THE ALASKA RANGE AND NULATO
HILLS.

A COLD FRONT FROM THE WESTERN ARCTIC COAST TO BARROW AND NORTH
WILL MOVE TO THE SOUTH SLOPES OF THE ALASKA RANGE BY 3AM FRI AND
TO THE SOUTHERN INTERIOR BY 3PM FRI...AND TO THE GULF OF ALASKA BY
3AM SAT. WILL SEE NORTH WINDS 20-30 MPH WITH THIS ALONG THE
EASTERN ARCTIC SLOPE...THE BROOKS RANGE AND ALASKA RANGE CAUSING
BLOWING SNOW AND LOW WIND CHILLS. HAVE ISSUED NUMEROUS WINTER
WEATHER AND WIND CHILL ADVISORIES TO COVER THIS. WILL SEE CLEARING
BEHIND THE FRONT.

STRONG HIGH PRESSURE BUILDING INTO THE INTERIOR BEHIND THE COLD
FRONT WILL BRING VERY COLD TEMPERATURES SAT AND SUN PERHAPS INTO
MON OR TUE IN THE EASTERN INTERIOR.

&&

.DISCUSSION...
MODELS INITIALIZE WELL AND HAVE SIMILAR SOLUTIONS.
THE GFS DEVELOPS THE LOW NEAR YAKUTAT QUICKER AND MORE DEEPLY ON
FRIDAY THAN THE NAM. PREFER THE GFS AS IT IS MORE LIKELY WITH THIS
TYPE OF STRONG COLD ADVECTION.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
BLOWING SNOW ADVISORY FOR AKZ213.

WIND CHILL ADVISORY FOR AKZ203-AKZ206-AKZ208-AKZ209-AKZ217-
AKZ220-AKZ221.

SNOW ADVISORY FOR AKZ216.

WINTER WEATHER ADVISORY FOR AKZ212-AKZ214-AKZ215-AKZ225-AKZ226.

WINTER STORM WATCH FOR AKZ203-AKZ204-AKZ206-AKZ218-AKZ219.

GALE WARNING FOR PKZ210.

BRISK WIND ADVISORY FOR PKZ200-PKZ215-PKZ220-PKZ225-PKZ240-
PKZ245.
&&

JB JAN 08