861
FXUS01 KWBC 190816
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 AM EST WED FEB 19 2025
VALID 12Z WED FEB 19 2025 - 12Z FRI FEB 21 2025
...WINTER STORM CONTINUES TO BRING A QUICK ROUND OF ACCUMULATING
SNOW FROM THE MID-MISSISSIPPI VALLEY THROUGH THE SOUTHERN
MID-ATLANTIC TODAY WITH AREAS OF SLEET/FREEZING RAIN JUST TO THE
SOUTH, AND AREAS OF HEAVY RAIN NEAR THE GULF COAST...
...RECORD COLD TEMPERATURES WILL SETTLE SOUTH TOWARD THE GULF
COAST THROUGH THE NEXT COUPLE OF DAYS WHILE DANGEROUSLY COLD WIND
CHILLS OVER THE NORTHERN PLAINS WILL BEGIN TO MODERATE...
...ANOTHER ROUND OF MOUNTAIN SNOW AND LOWER ELEVATION RAIN MOVING
INTO THE PACIFIC NORTHWEST TODAY WILL SPREAD INTO THE NORTHERN AND
CENTRAL ROCKIES THURSDAY INTO FRIDAY...
AS A LARGE ARCTIC HIGH PRESSURE SYSTEM CONTINUES SETTLE SOUTHWARD
INTO THE EASTERN TWO-THIRDS OF THE COUNTRY, A LOW PRESSURE SYSTEM
IS DEVELOPING JUST OFF THE GULF COAST ALONG THE ARCTIC FRONTAL
BOUNDARY. AREAS NEAR THE GULF COAST ARE EXPECTED TO SEE A ROUND
OF MODERATE TO HEAVY RAIN AS THE DEVELOPING SYSTEM PASSES JUST TO
THE SOUTH. SOME THUNDERSTORMS ARE ALSO EXPECTED TO MOVE ACROSS
NORTHERN FLORIDA LATER TODAY INTO TODAY WITH THE PASSAGE OF THE
COLD FRONT. IN ADDITION, A SWATH OF SNOW WELL TO THE NORTH OF THE
SYSTEM WILL QUICKLY SPREAD EAST FROM THE MID-MISSISSIPPI/TENNESSEE
VALLEYS THIS MORNING BEFORE MOVING THROUGH THE SOUTHERN
MID-ATLANTIC REGION THIS AFTERNOON INTO TONIGHT. A FEW TO LOCALLY
8+ INCHES OF NEW SNOW CAN BE EXPECTED IN THESE AREAS ESPECIALLY
ACROSS SOUTHEASTERN VIRGINIA INTO NORTHEASTERN NORTH CAROLINA AS
THE LOW PRESSURE SYSTEM BEGINS TO RAPIDLY INTENSIFY JUST OFF THE
CAROLINA COASTLINE THIS EVENING. THE CYCLONE WILL THEN QUICKLY
MOVE AWAY FROM THE EAST COAST, ENDING THE THREAT OF ADDITIONAL
ACCUMULATING SNOWFALL FOR THE MID-ATLANTIC COAST BY EARLY ON
THURSDAY. AREAS OF SLEET/FREEZING RAIN ARE ALSO EXPECTED JUST TO
THE SOUTH OF THE SWATH OF SNOWFALL FROM THE INTERIOR DEEP SOUTH
THIS MORNING TO THE COASTAL PLAINS OF NORTH CAROLINA THIS
AFTERNOON INTO EARLY THIS EVENING. BEHIND THE DEPARTING CYCLONE,
THE CORE OF THE ARCTIC AIR WILL BE USHERED ACROSS THE OHIO VALLEY
ON THURSDAY REACHING INTO THE MID-ATLANTIC EARLY ON FRIDAY.
SCATTERED SNOW SHOWERS WILL MOVE THROUGH THESE AREAS IN THE
PROCESS ALONG WITH FALLING TEMPERATURES. WIND CHILLS WILL BE AT
DANGEROUSLY COLD LEVELS THIS MORNING OVER THE NORTHERN PLAINS AS A
1050+ MB HIGH PRESSURE SYSTEM EDGES CLOSER. BELOW FREEZING
TEMPERATURES WILL ALSO REACH INTO THE GULF COAST WITH RECORD COLD
TEMPERATURES STRETCHING FROM THE CENTRAL PLAINS DOWN TO THE GULF
COAST. AS THE HIGH PRESSURE SYSTEM SLIDES SOUTHEASTWARD,
TEMPERATURES WILL PROGRESSIVELY MODERATE OVER THE NEXT COUPLE OF
DAYS. NEVERTHELESS, MUCH COLDER THAN NORMAL CONDITIONS WILL
DOMINATE THE EASTERN TWO-THIRDS OF THE COUNTRY. BE SURE TO DRESS
IN LAYERS INCLUDING A HAT, FACE MASK, AND GLOVES IF YOU MUST GO
OUTSIDE! MEANWHILE, LAKE-EFFECT SNOW WILL ONCE AGAIN IMPACT THE
SNOW BELT REGION DOWNWIND FROM THE GREAT LAKES.
ANOTHER ROUND OF UNSETTLED WEATHER ASSOCIATED WITH A PACIFIC
SYSTEM IS NOW ENTERING THE PACIFIC NORTHWEST, BRINGING A PERIOD OF
MODERATE TO LOCALLY HEAVY RAIN NEAR THE COAST AND SNOW FOR THE
HIGHER ELEVATIONS. THE PRECIPITATION WILL MOVE WELL INLAND,
PASSING IDAHO AND THE NORTHERN GREAT BASIN TODAY, BEFORE REACHING
INTO THE NORTHERN TO CENTRAL ROCKIES ON THURSDAY AS MOUNTAIN SNOWS
AND THEN GRADUALLY TAPERS OFF. THE SOUTHWEST WILL REMAIN DRY
THROUGH THE FORECAST PERIOD.
KONG
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