773
FXUS01 KWBC 222016
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 PM EDT FRI MAR 22 2024
VALID 00Z SAT MAR 23 2024 - 00Z MON MAR 25 2024
...HEAVY SNOW LIKELY ACROSS NORTHERN NEW YORK NORTHERN NEW ENGLAND
ON SATURDAY...
..A WET WEEKEND AHEAD FOR THE EAST AND WEST COASTS
...A SIGNIFICANT WINTER STORM IS IN STORE FOR THE NORTHERN PLAINS
BY SATURDAY NIGHT INTO SUNDAY MORNING...
QUITE AN ACTIVE WEATHER PATTERN IS QUICKLY EMERGING ACROSS THE
COUNTRY AS WE HEAD INTO THE WEEKEND. A HIGH PRESSURE SYSTEM FROM
CANADA WILL SET THE STAGE FOR SUSTAINING THE COLD AIR THAT IS
ALREADY IN PLACE ACROSS THE NORTHERN TIER STATES. MEANWHILE, A
TROUGH OF LOW PRESSURE CURRENTLY SLIDING EASTWARD INTO THE WESTERN
GULF COAST REGION AT THE UPPER LEVELS WILL BE INSTRUMENTAL IN
DEVELOPING A LOW PRESSURE SYSTEM THAT WILL GRADUALLY INTENSIFY AND
TRACK UP THE EAST COAST DURING THE WEEKEND. IN THE NEAR TERM
HOWEVER, THE UPPER TROUGH WILL MUTUALLY INTERACT WITH A MESOSCALE
FRONT AND PLENTY OF WARM/MOIST AIR IN THE GULF OF MEXICO TO BRING
A ROUND OF HEAVY RAIN MAINLY ACROSS SOUTHERN FLORIDA THROUGH
TONIGHT. THE HEAVY DOWNPOURS ARE EXPECTED TO BE ACCOMPANIED WITH
STRONG TO SEVERE THUNDERSTORMS AND POSSIBLY SQUALLS AS THE CORE OF
THE SYSTEM PASSES THROUGH. BY SATURDAY, THE HEAVY RAIN WILL
LIKELY TAPER OFF TO SCATTERED SHOWERS BEHIND A COLD FRONT ACROSS
FLORIDA. MEANWHILE, THE HEAVY RAIN IS EXPECTED TO OVERSPREAD MUCH
OF THE EASTERN SEABOARD ON SATURDAY WHERE WIDESPREAD 1-3 INCHES OF
RAINFALL WILL LIKELY RESULT IN FLOODING CONCERNS ALONG THE I-95
CORRIDOR AS A LOW PRESSURE WAVE IS FORECAST TO TRACK UP THE EAST
COAST ALONG A SHARP COASTAL FRONT.
FARTHER NORTH, THE LOW PRESSURE SYSTEM WILL INTERACT WITH THE COLD
AIR MASS IN PLACE ACROSS THE NORTHERN TIER STATES TO BRING A ROUND
OF HEAVY SNOW FROM NORTHERN NEW YORK ACROSS NORTHERN NEW ENGLAND
ON SATURDAY WHERE ONE FOOT TO LOCALLY 20 INCHES OF NEW SNOW IS
ANTICIPATED. IT APPEARS THAT THERE WILL BE A NARROW ZONE OF
TRANSITION ACROSS CENTRAL NEW ENGLAND TO COASTAL MAINE WHERE HEAVY
FREEZING RAIN AND SLEET CAN BE EXPECTED SATURDAY NIGHT AS THE LOW
PRESSURE WAVE APPROACHES. THE PRECIPITATION WILL THEN RAPIDLY
CHANGE OVER TO SNOW BEFORE ENDING EARLY SUNDAY MORNING AS THE
SYSTEM EXITS INTO THE CANADIAN MARITIMES.
MEANWHILE, ANOTHER UPPER TROUGH AND SURFACE LOW PRESSURE SYSTEM
FROM THE EASTERN PACIFIC ARE HEADING TOWARD THE WEST COAST. THIS
SYSTEM WILL BRING WIDESPREAD MOUNTAIN SNOW AND LOWER-ELEVATION
RAIN INTO THE PACIFIC NORTHWEST AND CALIFORNIA ON SATURDAY WHERE A
COUPLE INCHES OF RAIN IS POSSIBLE NEAR THE COAST, AND UP TO A
COUPLE OF FEET OF HEAVY SNOW FOR THE SIERRA NEVADA. THE SYSTEM
WILL REACH INTO THE GREAT BASIN, THE INTERMOUNTAIN REGION AND INTO
THE NORTHERN ROCKIES SATURDAY NIGHT. FROM SATURDAY NIGHT INTO
EARLY SUNDAY, A LOW PRESSURE SYSTEM IS FORECAST TO DEVELOP AND
INTENSIFY OVER THE CENTRAL HIGH PLAINS. THIS SYSTEM WILL THEN
INTERACT WITH THE COLD AIR MASS ALREADY IN PLACE ACROSS THE
NORTHERN TIER STATES TO DELIVER A SIGNIFICANT WINTER STORM ACROSS
THE NORTHERN PLAINS BY SUNDAY MORNING.
KONG
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