435
FXUS01 KWBC 150815
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
314 AM EST MON JAN 15 2024
VALID 12Z MON JAN 15 2024 - 12Z WED JAN 17 2024
..DANGEROUSLY COLD TEMPERATURES CONTINUE ACROSS MUCH OF THE U.S
...SNOW AND FREEZING RAIN CONTINUE OVER THE SOUTHERN U.S TODAY,
SPREAD INTO THE MID-ATLANTIC ...
..HEAVY LAKE EFFECT SNOWFALL CONTINUES
THE MAIN THEME TO OUR WEATHER STORY OVER MUCH OF THE LOWER 48
REMAINS THE BRUTALLY COLD TEMPERATURES AND ASSOCIATED SIGNIFICANT
WINTRY WEATHER. LITTLE HAS CHANGED WITH THE "TAKE-HOME" MESSAGE
REGARDING THE DANGEROUS COLD ENTRENCHED OVER THE U.S, AS SUB-ZERO
AIR TEMPERATURES AND EVEN COLDER WIND CHILLS PREVAIL THROUGH
TOMORROW BEFORE ANOTHER ARCTIC BLAST ARRIVES LATE THIS WEEK. THIS
MEANS ONE MORE DAY OF FRIGID WIND CHILLS DIPPING BELOW MINUS 30
ACROSS THE PLAINS STATES, AND MINUS 50 IN MONTANA AND THE DAKOTAS.
AS WE APPROACH MID-WEEK (WEDNESDAY), THE INITIAL ARCTIC AIRMASS
WILL MODERATE, LEADING TO BELOW AVERAGE (BUT STILL COLD)
TEMPERATURES EAST OF THE CONTINENTAL DIVIDE. UNFORTUNATELY,
ANOTHER SURGE OF FRIGID ARCTIC AIR IS EXPECTED TO PLUNGE SOUTHWARD
OUT OF CANADA LATER THIS WEEK, WHICH COULD LEAD TO MORE OF THE
SAME DANGEROUS COLD WEATHER ACROSS THE MIDWEST AND DEEP SOUTH BY
THE END OF THE WORK WEEK. STAY TUNED FOR DETAILS AS THE FORECAST
EVOLVES.
IN THE MORE IMMEDIATE TERM, THE FRIGID AIRMASS IN PLACE IS ALSO
SUPPORTING HAZARDOUS WINTER WEATHER ACROSS MUCH OF THE SOUTHERN
U.S AND GREAT LAKES. WIDESPREAD MODERATE TO LOCALLY MAJOR
POTENTIAL WINTER STORM IMPACTS TODAY ARE EXPECTED ACROSS THE LOWER
MISSISSIPPI VALLEY AND TENNESSEE VALLEY AS A MIX OF SNOW, SLEET,
AND FREEZING RAIN FALL BEFORE SPREADING INTO THE APPALACHIANS.
IMPACTS FROM THIS STORM TODAY MAY BE PROLONGED EVEN AFTER THE
WINTRY PRECIPITATION SUBSIDES, OWING TO THE ARCTIC AIR IN PLACE.
BY LATER TODAY INTO TOMORROW, SNOWFALL IS EXPECTED TO REACH THE
APPALACHIANS AND MID-ATLANTIC, INCLUDING WASHINGTON D.C,
PHILADELPHIA, AND NEW YORK. REGARDLESS OF HOW MUCH FALLS, PREPARE
FOR SLIPPERY ROAD CONDITIONS BEGINNING LATER TODAY INTO TOMORROW.
MEANWHILE, PERIODS OF HEAVY LAKE EFFECT SNOWFALL WILL CONTINUE
DOWNWIND OF THE GREAT LAKES THROUGH WEDNESDAY, WITH HEAVY
ACCUMULATIONS FOCUSED ACROSS NORTHERN MICHIGAN, WESTERN AND
UPSTATE NEW YORK INCLUDING BUFFALO. IN THESE AREAS, MODERATE TO
MAJOR WINTER WEATHER IMPACTS CAN BE EXPECTED, WHERE LOCALIZED
WINTER STORM WATCHES AND WARNINGS ARE IN EFFECT.
ASHERMAN
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page