715
FXUS01 KWBC 240818
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT MON MAR 24 2025
VALID 12Z MON MAR 24 2025 - 12Z WED MAR 26 2025
...LOW PRESSURE SYSTEM BRINGS SNOW ACROSS THE GREAT LAKES TODAY,
SEVERE THUNDERSTORMS AND HEAVY RAIN ACROSS THE DEEP SOUTH THIS
MORNING, AND A QUICK ROUND OF MODERATE SNOWFALL FOR MAINE
TONIGHT...
...WET WEATHER ACROSS NORTHWESTERN WASHINGTON STATE TODAY IS
EXPECTED TO TAPER OFF ON TUESDAY...
...WELL ABOVE AVERAGE, WARM TO HOT EARLY SPRING TEMPERATURES WILL
EXPAND OVER THE WESTERN/CENTRAL U.S. THIS WEEK WITH NUMEROUS
RECORD HIGHS NEAR THE WEST COAST AND DESERT SOUTHWEST ON TUESDAY...
THE FORECAST PERIOD BEGINS WITH A FAIRLY DEEP LOW PRESSURE SYSTEM
TRACKING EASTWARD ACROSS THE GREAT LAKES THIS MORNING. WIDESPREAD
LIGHT TO MODERATE SNOWFALL WILL BRING ADDITIONAL ACCUMULATIONS
FROM THE UPPER MIDWEST TO THE UPPER AND CENTRAL GREAT LAKES FOR
TODAY. BY TONIGHT, A LOW PRESSURE WAVE IS FORECAST TO FORM NEAR
THE NEW ENGLAND COAST AS THE COMPLEX FRONTAL STRUCTURE ASSOCIATED
WITH THE LOW PRESSURE SYSTEM CONSOLIDATES OVER NEW ENGLAND. THIS
LOW PRESSURE WAVE IS EXPECTED TO DELIVER A QUICK ROUND OF MODERATE
SNOWFALL FOR MAINE TONIGHT WHERE UPWARDS OF 6 INCHES OF TOTAL
ACCUMULATIONS ARE POSSIBLE. LESSER AMOUNTS ARE EXPECTED FARTHER
WEST ACROSS INTERIOR NEW ENGLAND. THE WAVE WILL QUICKLY MOVE AWAY
INTO SOUTHEASTERN CANADA ON TUESDAY BUT THE MAIN LOW PRESSURE
SYSTEM WILL BE SLOW TO EXIT THE GREAT LAKES, ALLOWING SNOW SHOWERS
TO LINGER, ESPECIALLY FOR THE SNOW BELT REGION WHERE SOME
LAKE-EFFECT SNOWS ARE EXPECTED TO BE AROUND INTO WEDNESDAY MORNING.
TO THE SOUTH OF THE SYSTEM, ACTIVE STRONG TO SEVERE THUNDERSTORMS
AHEAD OF A TRAILING COLD FRONT ARE IMPACTING MUCH OF THE DEEP
SOUTH AND AS FAR WEST AS EASTERN TEXAS. THESE ACTIVITIES ARE
FORECAST TO BECOME LESS INTENSE AS THEY EDGE FARTHER SOUTH TOWARD
THE GULF COAST LATER TODAY. THE COLD FRONT ITSELF WILL SWEEP
ACROSS EAST COAST TODAY WHERE PRETTY MUCH EVERYONE SHOULD RECEIVE
SHOWERS AND EMBEDDED THUNDERSTORMS THIS AFTERNOON FROM SOUTHERN
NEW ENGLAND SOUTHWARD. BEHIND THE SYSTEM COOLER AIR WILL ARRIVAL
BUT A PAIR OF FRONTAL BOUNDARIES INTERACTING WITH A BROAD UPPER
TROUGH WILL SEND LOW PRESSURE WAVES RAPIDLY FROM THE CENTRAL
PLAINS TOWARD THE EAST COAST, WHICH WILL ALLOW LIGHT RAIN TO MOVE
QUICKLY ACROSS THE OHIO AND TENNESSEE VALLEYS ON TUESDAY. BY
WEDNESDAY MORNING, A LOW PRESSURE WAVE SHOULD BE CONSOLIDATING
WHILE MOVING OFF THE MID-ATLANTIC COAST WITH A PERIOD OF
INTENSIFYING RAIN AND GUSTY WINDS FROM THE CENTRAL APPALACHIAN
EASTWARD TO THE MID-ATLANTIC.
MEANWHILE, A PLUME OF PLENTIFUL MOISTURE ACCOMPANYING A FRONTAL
SYSTEM WILL CONTINUE TO LEAD TO HEAVY RAIN ALONG UPSLOPE PORTIONS
OF THE OLYMPIC MOUNTAINS AND NORTHERN CASCADES IN WASHINGTON EARLY
TODAY. THE HEAVY PRECIPITATION WILL SLOWLY WIND DOWN AS TODAY
PROGRESSES. BY TUESDAY, THE FRONTAL SYSTEM WILL LIFT FARTHER
NORTH INTO BRITISH COLUMBIA AND WEAKEN, WHICH WILL ALLOW THIS
RECENT RAIN SPELL TO END. A BROAD RIDGE OF HIGH PRESSURE WILL
GRADUALLY BUILD AND DOMINATE THE WESTERN U.S. HEADING INTO
MIDWEEK. THIS RIDGE WILL ALLOW TEMPERATURES TO SOAR INTO RECORD
LEVELS ESPECIALLY BY TUESDAY AFTERNOON FOR THE LOWER-ELEVATIONS
INTO THE 70S AND 80S UP AND DOWN THE WEST COAST JUST INLAND. IN
ADDITION, TEMPERATURES IN THE DESERT SOUTHWEST WILL SOAR WELL UP
INTO THE 90S AND MAY EVEN REACH THE CENTURY MARK AT THE HOTTEST
LOCATIONS. THE ANOMALOUS WARMTH WILL ALSO EXPAND EASTWARD INTO
THE CENTRAL AND SOUTHERN PLAINS WHERE 90S WILL BE COMMON IN TEXAS
BY TUESDAY AFTERNOON.
KONG
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