889
FXUS01 KWBC 042015
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
315 PM EST SAT JAN 04 2025
VALID 00Z SUN JAN 05 2025 - 00Z TUE JAN 07 2025
...DISRUPTIVE WINTER STORM TO IMPACT THE CENTRAL PLAINS TO THE
MID-ATLANTIC THROUGH MONDAY WITH WIDESPREAD HEAVY SNOW AND
DAMAGING ICE ACCUMULATIONS...
...SEVERE THUNDERSTORMS EXPECTED ACROSS THE LOWER MISSISSIPPI
VALLEY ON SUNDAY...
...PACIFIC NORTHWEST TO NORTHERN/CENTRAL ROCKIES TO REMAIN ACTIVE
WITH LOWER ELEVATION RAIN AND MOUNTAIN SNOW THROUGH MONDAY...
A WINTER STORM IS EXPECTED TO DEVELOP TONIGHT OVER THE CENTRAL
U.S. AS LOW PRESSURE ORGANIZES FROM THE TEXAS PANHANDLE INTO
OKLAHOMA. BELOW AVERAGE TEMPERATURES ALREADY IN PLACE ACROSS A
BROAD SWATH OF THE CENTRAL PLAINS TO MIDWEST WILL BE MET WITH
INCREASING ASCENT AHEAD OF A POTENT MID-LEVEL LOW TO TRACK FROM
KANSAS TONIGHT, TO VIRGINIA/NORTH CAROLINA ON MONDAY. AT THE
SURFACE, AS THE LOW TRACKS ESSENTIALLY DUE EAST TOWARD THE EAST
COAST OVER THE NEXT 48 HOURS, MIXED PRECIPITATION OVER PORTIONS OF
KANSAS AND SOUTHERN NEBRASKA WILL CHANGEOVER TO ALL SNOW DURING
THE DAY ON SUNDAY AS WINDS INCREASE FROM THE NORTH. THE
COMBINATION OF BLOWING SNOW AND WIND GUSTS TO 40 MPH WILL RESULT
IN SIGNIFICANTLY REDUCED VISIBILITY AND BLIZZARD CONDITIONS AT
TIMES FROM KANSAS INTO PORTIONS OF THE LOWER MISSOURI RIVER VALLEY.
SNOW, HEAVY AT TIMES, ALONG WITH SLEET AND FREEZING RAIN WILL
TRANSLATE EASTWARD ON SUNDAY AND SUNDAY NIGHT THROUGH THE OHIO
VALLEY INTO THE MID-ATLANTIC REGION. FREEZING RAIN AND BANDS OF
HEAVY SNOW WILL RESULT IN SEVERE TRAVEL DELAYS ALONG THE STORM'S
TRACK. SNOWFALL OF 6 TO OVER 12 INCHES IS EXPECTED TO THE NORTH OF
I-70 FROM NEAR SALINA TO ST. LOUIS. A SWATH OF HEAVY SNOW
EXCEEDING 15 INCHES FROM NORTHEASTERN KANSAS INTO NORTH-CENTRAL
MISSOURI WOULD BE THE HEAVIEST SNOWFALL IN A DECADE. A STRIPE OF 6
TO ROUGHLY 12 INCHES IS EXPECTED TO IMPACT LOCATIONS BETWEEN I-70
AND I-64 ACROSS THE OHIO VALLEY WITH MIXED PRECIPITATION ALONG THE
SOUTHERN EDGES. AN ELONGATED PATH OF FREEZING RAIN ACCUMULATIONS
IN EXCESS OF 0.25 INCHES IS LIKELY FROM SOUTHEASTERN MISSOURI INTO
CENTRAL KENTUCKY WITH POTENTIAL FOR 0.50 INCHES WHICH WOULD RESULT
IN WIDESPREAD TREE DAMAGE AND LONG-LASTING POWER OUTAGES.
MODERATE TO LOCALLY HEAVY SNOW IS EXPECTED TO REACH THE NORTHERN
MID-ATLANTIC REGION SUNDAY NIGHT WITH A WINTRY MIX EXPANDING FROM
THE CENTRAL APPALACHIANS TO CENTRAL/EASTERN VIRGINIA.
ON THE WARM SIDE OF THE STORM SYSTEM, SEVERE THUNDERSTORMS ARE
EXPECTED AHEAD OF THE STORM SYSTEM'S COLD FRONT AS IT CROSSES THE
LOWER MISSISSIPPI VALLEY. THREATS FOR TORNADOES, LARGE HAIL AND
DAMAGING STRAIGHT LINE WINDS HAVE PROMPTED THE STORM PREDICTION
CENTER TO CARRY AN ENHANCED RISK (LEVEL 3/5) OF SEVERE
THUNDERSTORMS FROM NORTHEASTERN LOUISIANA INTO WESTERN MISSISSIPPI
ON SUNDAY. LOCALLY HEAVY RAIN WILL ALSO ACCOMPANY THESE STORMS AS
THEY MOVE EASTWARD AHEAD OF THE COLD FRONT ON INTO THE
SOUTHEASTERN U.S.
WHILE TEMPERATURES WILL BE ANOMALOUSLY WARM FROM EASTERN TEXAS
INTO THE LOWER MISSISSIPPI ON SUNDAY, A RENEWED BLAST OF COLD AIR
WILL FOLLOW BEHIND THE STORM INTO THE CENTRAL AND SOUTHERN U.S.
WHERE HIGH TEMPERATURES ON MONDAY ARE EXPECTED TO BE 15 TO 25
DEGREES BELOW AVERAGE.
ACROSS THE WEST, A PAIR OF STORM SYSTEMS ARE FORECAST TO MOVE INTO
THE PACIFIC NORTHWEST TONIGHT AND SUNDAY NIGHT, BRINGING LOWER
ELEVATION RAIN TO THE COASTAL RANGES OF WASHINGTON AND OREGON,
WITH MOUNTAIN SNOW FROM THE CASCADES TO THE HIGHER ELEVATIONS OF
THE NORTHERN AND CENTRAL ROCKIES. WHILE A FEW COOLER POCKETS MAY
EXIST, TEMPERATURES WEST OF THE CONTINENTAL DIVIDE WILL GENERALLY
BE ABOVE AVERAGE THROUGH MONDAY, UP TO 10-15 DEGREES ABOVE EARLY
JANUARY AVERAGES.
OTTO
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