Wind Chill Advisory 60, NWS Fairbanks, AK

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
343 PM AKST TUE NOV 15 2011

.DISCUSSION...
DEEP AND COLD LONG WAVE TROUGH CONTINUES TO DIG SOUTH AND EAST
OVER CENTRAL AND EASTERN ALASKA AS A LONG WAVE RIDGE BUILDS OVER
THE BERING SEA. VERY COLD TEMPERATURES ALOFT FOR NOV ARE REFLECTED
AT THE SURFACE WHERE WEAK RIDGING AND CLEAR SKIES PROMPTED THE
FIRST 40 BELOW READINGS OF THE SEASON THIS MORNING AND WILL ALLOW
FOR MANY MORE 40 BELOW READINGS TONIGHT ACROSS THE INTERIOR OF
ALASKA. ARCTIC VILLAGE BOTTOMED OUT THIS MORNING AT 45 BELOW WITH
COLDFOOT CLOSE BEHIND AT 44 BELOW. MORNING SATELLITE IMAGERY HAD
POCKETS OF 50 BELOW. OVERNIGHT AND WED MORNING TEMPERATURES ARE
LIKELY TO BE SIMILARLY COLD WITH COLDEST VALLEY LOCATIONS
EXPECTED TO DROP TO 45 TO POSSIBLY 50 BELOW IN THE NORTHERN
INTERIOR. A DEVELOPING LOW IN THE NORTHERN GULF CONTINUES TO MOVE
EAST AND NORTHEAST WITH LANDFALL NEAR PAYA THIS EVENING. MOISTURE
AHEAD OF THE LOW CONTINUES TO IMPACT THE SOUTHEAST INTERIOR WHERE
LIGHT SNOW HAS BEEN FALLING THROUGH THE DAY AT PAOR. EXPECT THE
SNOW TO INCREASE OVERNIGHT IN THE SOUTHERN PORTIONS OF ZONE 224
AND ACROSS SOUTHERN PORTIONS OF ZONE 226 AS WEAK UPSLOPE DEVELOPS.
SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA. WINDS
WILL INCREASE IN THE EASTERN ALASKA RANGE PASSES AS THE LOW MOVES
INLAND AND REFORMS IN THE LOW LEVELS IN THE YUKON. SNOW AND
BLOWING SNOW THROUGH THE PASSES WILL IMPACT THESE PASSES BEGINNING
TONIGHT AND CONTINUING TOMORROW. WIND CHILLS WILL APPROACH
CRITERIA TONIGHT AN TOMORROW IN THESE AREAS.

1009 MB LOW IN THE BEAUFORT SEA CONTINUES TO DRAG A TROUGH EAST
ACROSS THE EASTERN NORTH SLOPE WITH LIGHT SNOW AND BLOWING SNOW
NOTED PRIMARILY EAST OF PABR. THE LOW CONTINUES TO WEAKEN AND IS
NOW AN OPEN WAVE AS IT MOVES INTO THE CANADIAN HIGH ARCTIC
TONIGHT. WINDS CONTINUE TO DIMINISH AND VISIBILITIES ARE SLOWLY
IMPROVING ACROSS THE NORTH SLOPE EAST OF PABR.

GALE FORCE LOW MOVES INTO THE SOUTHERN BERING LATE WED AND THEN
MOVES NORTHWESTWARD INTO THE WEST CENTRAL BERING SEA ON THURSDAY.
GALE FORE WINDS ARE EXPECTED WELL OFF SHORE AND NEAR ST LAWRENCE
ISLAND WITH THIS LOW. ANOTHER LOW DEVELOPS SOUTH OF THE ALEUTIANS
AND MOVES NORTHWARD TOWARD ST LAWRENCE ISLAND FRIDAY WITH SNOW
MOVING INTO THE SOUTHWEST COAST THURSDAY NIGHT AND FRIDAY MORNING.

LONG RANGE MODELS CONTINUE TO BE IN FAIR AGREEMENT THROUGH THE
WEEKEND AND INTO NEXT WEEK. A BRIEF WARM UP TO NEAR NORMAL
TEMPERATURES FOR THE INTERIOR IS FOLLOWED BY ANOTHER COLD SNAP
EARLY NEXT WEEK.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
HEAVY FREEZING SPRAY WARNING FOR PKZ200-PKZ210-PKZ220-PKZ225-
PKZ230.

SMALL CRAFT ADVISORY FOR PKZ200-PKZ210-PKZ220.

BRISK WIND ADVISORY FOR PKZ240-PKZ245.
&&

CC NOV 11