803
FXUS01 KWBC 010800
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
359 AM EDT THU MAY 01 2025
VALID 12Z THU MAY 01 2025 - 12Z SAT MAY 03 2025
...SHOWERS AND EMBEDDED SEVERE THUNDERSTORMS SHIFT EAST INTO THE
MID-MISSISSIPPI, OHIO, AND TENNESSEE VALLEYS TODAY AS RAIN
OVERSPREADS THE GREAT LAKES THROUGH TONIGHT...
...POTENTIAL FOR STRONG TO SEVERE THUNDERSTORMS RETURNS FOR THE
SOUTHERN PLAINS ON FRIDAY...
A LOW PRESSURE SYSTEM FORMING ALONG A STALLED FRONTAL BOUNDARY
ACROSS THE SOUTHERN PLAINS WILL GRADUALLY INTENSIFY AS IT TRACKS
NORTHEASTWARD ACROSS THE MID-MISSISSIPPI VALLEY AND THE MIDWEST
TODAY BEFORE REACHING THE GREAT LAKES TONIGHT. THE FORWARD MOTION
OF THE LOW PRESSURE SYSTEM WILL EFFECTIVELY END THE HEAVY RAINFALL
AND SEVERE WEATHER THREATS ACROSS THE SOUTH-CENTRAL U.S. FOR THE
PAST COUPLE OF DAYS. ON THE OTHER SIDE OF THE SYSTEM HOWEVER,
SHOWERS AND EMBEDDED SEVERE THUNDERSTORMS WILL INCREASE AND EXPAND
ACROSS MID-MISSISSIPPI, OHIO, AND TENNESSEE VALLEYS TODAY.
DAMAGING WINDS, HAIL, AND AN ISOLATED TORNADO ARE THE PRIMARY
CONCERNS FROM ANY SEVERE STORMS. FARTHER NORTH, RAIN WITH
EMBEDDED THUNDERSTORMS WILL OVERSPREAD THE CENTRAL AND LOWER GREAT
LAKES TODAY AND INTO THIS EVENING AS THE LOW APPROACHES. COLDER
AIR FILTERING IN BEHIND A SECONDARY COLD FRONT MAY CHANGE THE RAIN
TO WET SNOW FLAKES NEAR THE CANADIAN BORDER OF MINNESOTA FRIDAY
MORNING BEFORE DRIER AIR BEHIND THE FRONT GRADUALLY TAPERS OFF THE
COLD RAIN ACROSS THE UPPER MIDWEST DURING THE DAY ON FRIDAY. NEW
ENGLAND WILL SEE SCATTERED SHOWERS AND THUDERSTORMS PASSING
THROUGH ON FRIDAY BEHIND A WARM FRONT AS AFTERNOON TEMPERATURES
SOAR WELL INTO THE 70S. THE REST OF THE EAST COAST WILL BE VERY
WARM ON FRIDAY WITH HIGHS WELL INTO THE 80S ALONG WITH WIDELY
SCATTERED THUNDERSTORMS.
FROM FRIDAY NIGHT INTO SATURDAY MORNING, A LOW PRESSURE WAVE IS
FORECAST TO DEVELOP ON THE SECONDARY FRONTAL BOUNDARY OVER THE
EAST-CENTRAL U.S. AHEAD OF A DEEPENING UPPER-LEVEL TROUGH. THIS
WILL ALLOW SHOWERS AND EMBEDDED THUNDERSTORMS ACROSS THE
MID-MISSISSIPPI VALLEY ON FRIDAY TO EXPAND INTO THE OHIO VALLEY
AND MID-SOUTH FRIDAY NIGHT, REACHING INTO THE SOUTHERN
APPALACHIANS, LOWER GREAT LAKES, AND INTERIOR NEW ENGLAND BY
SATURDAY MORNING.
MEANWHILE, A PACIFIC FRONTAL SYSTEM IS BRINGING A ROUND OF WET
SNOW AND LOWER-ELEVATION RAINS AND ACROSS THE COLORADO ROCKIES
THIS MORNING. ADDITIONAL DISTURBANCES ASSOCIATED WITH A DIGGING
TROUGH WILL BRING SCATTERED RAIN SHOWERS ACROSS THE NORTHERN AND
CENTRAL HIGH PLAINS TODAY. BY EARLY FRIDAY MORNING, THE
ASSOCIATED COLD FRONT WILL DIP SOUTH INTO THE SOUTHERN HIGH PLAINS
AND INTERSECT MOISTURE RETURNING FROM THE WESTERN GULF TO PROVIDE
INCREASING CHANCES OF STRONG TO SEVERE THUNDERSTORMS EXTENDING
EAST THROUGH THE SOUTHERN PLAINS BY FRIDAY AFTERNOON. A ROUND OF
STRONG TO SEVERE THUNDERSTORMS IS FORECAST TO DEVELOP ACROSS
CENTRAL TEXAS BY FRIDAY EVENING INTO SATURDAY MORNING AS THE FRONT
DIPS FURTHER SOUTH INTO TEXAS.
ALONG THE WEST COAST, CHANCE OF RAIN WILL GRADUALLY INCREASE
FRIDAY NIGHT INTO SATURDAY MORNING AS THE NEXT FRONT FROM THE
PACIFIC ARRIVES. SCATTERED AREAS OF RAIN WILL PUSH FARTHER INLAND
BY SATURDAY MORNING AS A LOW PRESSURE SYSTEM BEGINS TO DEVELOP
OVER THE GREAT BASIN. OVERALL, A WARMING TREND IS EXPECTED FOR
MUCH OF THE WESTERN U.S. BEFORE CLOUDS AND RAIN ARRIVE FRIDAY
NIGHT ALONG THE PACIFIC COAST.
KONG
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