706
FXUS01 KWBC 222001
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST WED NOV 22 2023
VALID 00Z THU NOV 23 2023 - 00Z SAT NOV 25 2023
...HEAVY SNOW AND COASTAL RAIN TO WIND DOWN ACROSS MAINE THIS
EVENING...
...A WHITE THANKSGIVING IS ON TAP FOR THE NORTHERN/CENTRAL ROCKIES
AND NORTHERN/CENTRAL HIGH PLAINS WHILE ARCTIC AIR INTRUDES...
A MID-LEVEL TROUGH WILL AMPLIFY INTO A CLOSED LOW AS IT DROPS INTO
THE INTERMOUNTAIN WEST OVER THE NEXT 48 HOURS. THIS AMPLIFIED
SYSTEM WILL PROMOTE HEAVY SNOW AND MUCH COLDER TEMPERATURES ACROSS
THE ROCKIES AND PLAINS DURING THIS PERIOD. MEANWHILE, THINGS WILL
BE RELATIVELY QUIET ACROSS THE REST OF THE COUNTRY, SAVE FOR SOME
WINDY AND CHILLY CONDITIONS BEHIND A COLD FRONT FOR MAINE ON
FRIDAY AND SATURDAY. COLD AIR WILL ALSO WORK ITS WAY DOWN INTO THE
NORTHEAST/MID-ATLANTIC COAST ON FRIDAY AND SATURDAY.
A STRONG SURFACE COLD FRONT OVER CANADA WILL PUSH SOUTHWARD
TONIGHT, BRINGING MUCH COLDER AIR TO THE ROCKIES. LIGHT SNOW WILL
GRADUALLY EXPAND IN COVERAGE OVER MONTANA AS THE COLD AIR SINKS
SOUTHWARD. SNOW WILL INCREASE ON THANKSGIVING OVER WYOMING AND
PROGRESS SOUTHWARD INTO COLORADO OVERNIGHT INTO FRIDAY. THERE IS A
HIGH (>70%) CHANCE OF AT LEAST 6 INCHES OF SNOWFALL THROUGH EARLY
SATURDAY OVER PARTS OF WYOMING. LIGHTER AMOUNTS ARE FORECAST
ELSEWHERE IN THE ROCKIES AND OVER THE HIGH PLAINS. SNOWFALL RATES
OF 1"/HR WILL MAKE TRAVEL DIFFICULT ON BUSY INTERSTATES SUCH AS
I-25, I-80 AND I-90. BLOWING SNOW WILL REDUCE VISIBILITY AS WELL.
THE ARCTIC FRONT MAY CAUSE FLASH FREEZES IN UTAH, SOUTHERN
WYOMING, COLORADO AND THE NEBRASKA PANHANDLE THURSDAY
(THANKSGIVING) EVENING AS TEMPERATURES RAPIDLY DROP BELOW
FREEZING. WINTER WEATHER ADVISORIES AND WINTER STORM WATCHES ARE
IN EFFECT FOR
HAVE A SAFE AND HAPPY THANKSGIVING!
KEBEDE
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