559
FXUS01 KWBC 050714
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
313 AM EDT FRI SEP 05 2025
VALID 12Z FRI SEP 05 2025 - 12Z SUN SEP 07 2025
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE TENNESSEE/OHIO VALLEYS ON FRIDAY...
...THERE ARE AIR QUALITY ALERTS OVER PARTS OF THE NORTHWEST AND
NORTHERN/CENTRAL HIGH PLAINS...
A FRONT EXTENDING FROM THE GREAT LAKES TO THE MIDDLE MISSISSIPPI
VALLEY AND THEN ACROSS PARTS OF THE SOUTHERN PLAINS WILL MOVE
EASTWARD TO JUST OFF THE NORTHEAST/MID-ATLANTIC COAST, ACROSS THE
SOUTHEAST TO THE GULF COAST STATES BY SUNDAY. SHOWERS AND SEVERE
THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE BOUNDARY OVER
PARTS OF THE OHIO/TENNESSEE VALLEY. THEREFORE, THE SPC HAS ISSUED
A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER PARTS OF
THE OHIO/TENNESSEE VALLEY THROUGH SATURDAY MORNING. THE HAZARDS
ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE
THUNDERSTORM WIND GUSTS, HAIL, AND A FEW TORNADOES.
ON SATURDAY, AS THE FRONT MOVES EASTWARD, STRONG TO SEVERE
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE NORTHEAST AND
MID-ATLANTIC. SHOWERS AND THUNDERSTORMS WILL ALSO DEVELOP OVER
PARTS OF THE OHIO/TENNESSEE VALLEYS, LOWER MISSISSIPPI VALLEY, AND
INTO THE SOUTHERN PLAINS. IN ADDITION, A WEAK FRONT LINGERING OVER
FLORIDA WILL PRODUCE SHOWERS AND THUNDERSTORMS THROUGH SUNDAY.
MOREOVER, MONSOONAL MOISTURE, DIURNAL HEATING, AND UPPER-LEVEL
IMPULSES WILL PRODUCE SHOWERS AND THUNDERSTORMS OVER SOUTHERN
CALIFORNIA, THE SOUTHWEST, THE GREAT BASIN, AND THE
CENTRAL/SOUTHERN ROCKIES THROUGH SATURDAY MORNING. ON SATURDAY,
SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE INTERIOR
NORTHWEST/NORTHERN INTERMOUNTAIN REGION, GREAT BASIN, SOUTHWEST,
AND CENTRAL/SOUTHERN ROCKIES. OVERNIGHT SATURDAY INTO SUNDAY
MORNING, SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE
SOUTHERN PLAINS.
FURTHERMORE, SMOKE FROM WILDFIRES HAS PROMPTED AIR QUALITY ALERTS
OVER PARTS OF THE NORTHWEST AND NORTHERN/CENTRAL HIGH PLAINS.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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