220
FXUS01 KWBC 110801
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT MON MAR 11 2024
VALID 12Z MON MAR 11 2024 - 12Z WED MAR 13 2024
...HEAVY WET SNOW WILL CONTINUE INTO THE MORNING HOURS ON MONDAY
ACROSS THE HIGHER ELEVATIONS OF THE NORTHERN NEW ENGLAND AND
PORTIONS OF THE LOWER GREAT LAKES...
...UNSETTLED WEATHER IS EXPECTED TO PERSIST ACROSS THE PACIFIC
NORTHWEST AND INTO THE NORTHERN ROCKIES WITH MULTIPLE ROUNDS OF
LOWER-ELEVATION RAIN AND HIGHER ELEVATION SNOW...
...FIRE DANGER TO INCREASE ACROSS THE CENTRAL AND SOUTHERN HIGH
PLAINS FROM VERY DRY CONDITIONS, GUSTY WINDS, AND WARM
TEMPERATURES...
A DEEP LOW PRESSURE SYSTEM CENTERED OVER DOWNEAST MAINE EARLY THIS
MORNING WILL BE SLOW TO MOVE AWAY INTO THE CANADIAN MARITIMES. THE
ONGOING HEAVY WET SNOW ASSOCIATED WITH THIS SYSTEM IS EXPECTED TO
LINGERING ACROSS THE HIGHER TERRAIN FROM THE ADIRONDACKS OF NEW
YORK, UP ACROSS THE GREEN AND WHITE MOUNTAINS OF VERMONT AND NEW
HAMPSHIRE RESPECTIVELY. MEANWHILE, THE COLD AIR POURING SOUTHEAST
OVER THE LOWER GREAT LAKES WILL SUSTAIN HEAVY LAKE-EFFECT SNOW
SHOWER ACTIVITY WITH SQUALLS LOCALLY ACROSS UPSTATE NEW YORK INTO
THE MORNING OF TODAY BEFORE THEY GRADUALLY TAPER OFF DURING THE
AFTERNOON. THE SNOW WILL LIKELY TAPER OFF TO SNOW SHOWERS AND
FLURRIES BY TONIGHT ACROSS NORTHERN MAINE. NEVERTHELESS, THE
STRONG AND GUSTY WINDS ARE EXPECTED TO PERSIST INTO TUESDAY AS THE
LARGE CIRCULATION OF THE LOW PRESSURE SYSTEM WILL TAKE TIME TO
DEPART.
IN THE WAKE OF THE LOW PRESSURE SYSTEM, A LARGE DOME OF HIGH
PRESSURE WILL BUILD ACROSS THE SOUTH AND INTO THE SOUTHEAST WHILE
TAKING ITS TIME TO SLIDE OFF INTO THE ATLANTIC. TEMPERATURES OVER
THE NEXT COUPLE OF DAYS WILL BE WELL ABOVE NORMAL ESPECIALLY
ACROSS THE CENTRAL AND NORTHERN PLAINS AND THE MIDWEST BEFORE
GRADUALLY ADVANCING INTO THE GREAT LAKES AND OHIO VALLEY. THE
RETURN OF DRY WEATHER COUPLED WITH INCREASINGLY GUSTY WINDS AND
LOW RELATIVE HUMIDITY WILL PROMOTE AN INCREASED RISK OF WILDFIRES.
IN FACT, THE STORM PREDICTION CENTER HAS HIGHLIGHTED LARGE AREAS
OF THE CENTRAL AND SOUTHERN HIGH PLAINS IN AN ELEVATED TO CRITICAL
FIRE DANGER AREA. THIS WILL INCLUDE THE PANHANDLES OF TEXAS AND
OKLAHOMA WHERE DEVASTATING FIRES OCCURRED A COUPLE WEEKS AGO.
MEANWHILE ACROSS THE PACIFIC NORTHWEST, MULTIPLE LOW PRESSURE
SYSTEMS ARRIVING FROM THE PACIFIC WILL BRING FREQUENT ROUNDS OF
PRECIPITATION ONSHORE AND THEN FARTHER INLAND INTO THE NORTHERN
ROCKIES THROUGH THE NEXT COUPLE OF DAYS. MODERATE TO LOCALLY HEAVY
RAIN IS EXPECTED FOR THE COASTAL RANGES WITH HEAVY SNOW OVER THE
HIGHER ELEVATIONS OF THE CASCADES, NORTHERN SIERRA NEVADA, AND THE
SAWTOOTH, BITTERROOT, AND TETON RANGES OF THE NORTHERN ROCKIES.
THE CASCADES WILL LIKELY RECEIVE THE HEAVIEST SNOWFALL TOTALS
WHERE AS MUCH AS 1 TO 2 FEET OF NEW SNOW CAN BE EXPECTED.
TEMPERATURES ARE EXPECTED TO BEGIN REBOUNDING RATHER QUICKLY FOR
MUCH OF THE EAST AND THE SOUTH BY LATER TUESDAY AS MILDER AIR FROM
THE PLAINS AND MIDWEST ADVANCES EAST TOGETHER WITH WARM AIR
BEGINNING TO RETURN NORTH FROM THE GULF OF MEXICO. HIGH
TEMPERATURES ACROSS PORTIONS OF EASTERN SOUTH DAKOTA, MINNESOTA,
IOWA, AND WISCONSIN ARE FORECAST TO BE AS MUCH AS 30 TO 40 DEGREES
ABOVE NORMAL ON TODAY AND TUESDAY WITH TEMPERATURES APPROACHING OR
LOCALLY EXCEEDING 70 DEGREES. SOME CITIES WILL LIKELY BE WARM
ENOUGH TO SEE THEIR DAILY HIGH TEMPERATURE RECORDS EITHER TIED OR
BROKEN TODAY.
MEANWHILE, A COOLING TREND IS EXPECTED ACROSS THE WESTERN U.S. AS
COLDER AIR ASSOCIATED WITH AN UPPER TROUGH PUSHES INLAND TO BRING
MODERATE TO LOCALLY HEAVY MOUNTAIN SNOW INTO THE CENTRAL ROCKIES
BY EARLY WEDNESDAY WHILE THE WEST COAST BEGINS TO DRY OUT. FARTHER
EAST, A LOW PRESSURE SYSTEM IS FORECAST TO DEVELOP OVER THE
CENTRAL TO SOUTHERN HIGH PLAINS TUESDAY NIGHT. THE DRY ENVIRONMENT
IN THE VICINITY WILL INITIALLY LIMIT THE FORMATION OF SHOWERS AND
SOME THUNDERSTORMS ACROSS THE MID-MISSISSIPPI VALLEY INTO THE
MIDWEST EARLY ON WEDNESDAY. SOME LIGHT SNOW COULD BRUSH THE
NORTHERN PLAINS NEAR CANADIAN BORDER EARLY WEDNESDAY AHEAD OF A
CLIPPER SYSTEM.
KONG/ORRISON
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