274
FXUS01 KWBC 241958
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
257 PM EST SAT FEB 24 2024
VALID 00Z SUN FEB 25 2024 - 00Z TUE FEB 27 2024
...PACIFIC STORM SYSTEM TO BRING HEAVY SNOW TO THE WESTERN U.S.
ALONG WITH WINDY CONDITIONS TO THE NORTHWEST, CENTRAL TO NORTHERN
ROCKIES AND ADJACENT HIGH PLAINS...
...WARMING TREND EAST OF THE ROCKIES WITH RECORD WARMTH POSSIBLE
OVER THE CENTRAL U.S. THROUGH EARLY WEEK...
RELATIVELY TRANQUIL WEATHER OVER THE LOWER 48 ON SATURDAY WILL
BEGIN TO CHANGE ON SUNDAY, BEGINNING IN THE PACIFIC NORTHWEST AS A
FAIRLY STRONG STORM SYSTEM APPROACHES FROM THE EASTERN PACIFIC AND
BRITISH COLUMBIA. AN UPPER LEVEL DISTURBANCE WILL BE PRECEDED BY A
COLD FRONT THAT WILL REACH WASHINGTON LATE SUNDAY AFTERNOON.
STEADY RAIN WILL DEVELOP FOR THE COAST OF THE PACIFIC NORTHWEST
AND LOWER ELEVATIONS THAT ARE INLAND WHILE PERIODS OF HEAVY SNOW
IMPACT THE CASCADES TO DOWNSTREAM LOCATIONS OF THE NORTHERN
ROCKIES. SNOW LEVELS WILL FALL AFTER THE COLD FRONT MOVES THROUGH
WITH A RAIN/SNOW MIX POSSIBLE FOR THE SEATTLE AND PORTLAND
METROPOLITAN AREAS SUNDAY NIGHT. SNOWFALL ACCUMULATIONS OF 1 TO 3
FEET (LOCALLY HIGHER) ARE ANTICIPATED FOR THE CASCADES AND
PORTIONS OF THE NORTHERN ROCKIES THROUGH MONDAY NIGHT. HEAVY SNOW
WILL BEGIN TO IMPACT THE CENTRAL ROCKIES ON MONDAY. STRONG WINDS
WILL ALSO ACCOMPANY THIS STORM SYSTEM WITH THE STRONGEST WINDS
(GUSTS OVER 60 MPH) EXPECTED FOR THE HIGHER TERRAIN FROM WYOMING
INTO MONTANA, HOWEVER GUSTY WINDS OF 30 TO 50+ MPH WILL ALSO BE
POSSIBLE FOR SOME OF THE ADJACENT HIGH PLAINS REGIONS OF THE U.S.
FROM NEBRASKA INTO THE DAKOTAS, EXTENDING WESTWARD TO THE
FOOTHILLS OF THE ROCKIES.
LOCATIONS EAST OF THE ROCKIES WILL SEE LOW LEVEL WINDS DEVELOPING
FROM SOUTH AND WEST. WESTERLY FLOW ACROSS THE CONTINENTAL DIVIDE
WILL PROMOTE DOWNSLOPE WARMING INTO THE PLAINS, HELPING BRING HIGH
TEMPERATURES INTO THE 50S FOR THE NORTHERN PLAINS ON SUNDAY, 60S
TO 70S FOR THE CENTRAL TO SOUTHERN PLAINS AND 80S FOR LARGE
PORTIONS OF TEXAS. BY MONDAY, 80 DEGREE HIGH TEMPERATURES MAY
SPREAD AS FAR NORTH AS KANSAS WITH LOWER 70S IN IOWA, ABOUT 30-40
DEGREES ABOVE AVERAGE FOR LATE FEBRUARY. THIS WARMTH WILL LIKELY
BREAK SOME DAILY HIGH TEMPERATURE RECORDS FOR PORTIONS OF THE
CENTRAL U.S.
AFTER A COLD START IN THE EASTERN U.S. ON SUNDAY, TEMPERATURES
WILL CLIMB TO NEAR AVERAGE BY MID-DAY BUT CONTINUE TO WARM EACH
DAY THROUGH THE EARLY PART OF THE WEEK. AT LEAST THROUGH MONDAY, A
LACK OF MOISTURE WILL KEEP MOST LOCATIONS TO THE EAST OF THE
ROCKIES DRY, EXCEPT FOR SOME LIGHT SNOW WITH A COLD FRONTAL
PASSAGE IN NEW ENGLAND ON MONDAY.
OTTO
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