645
FXUS01 KWBC 060724
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
324 AM EDT WED SEP 06 2023
VALID 12Z WED SEP 06 2023 - 12Z FRI SEP 08 2023
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE LOWER MISSISSIPPI VALLEY/TENNESSEE VALLEY ON WEDNESDAY...
...THERE ARE HEAT ADVISORIES OVER PARTS OF THE NORTHEAST AND
SOUTHERN PLAINS/LOWER MISSISSIPPI VALLEY ON WEDNESDAY...
...AIR QUALITY ALERTS OVER PARTS OF THE NORTHERN HIGH PLAINS,
CENTRAL PLAINS, AND UPPER MISSISSIPPI VALLEY ON WEDNESDAY...
ON WEDNESDAY, A FRONT EXTENDING FROM THE UPPER MISSISSIPPI
VALLEY/UPPER GREAT LAKES WILL MOVE EASTWARD TO THE LOWER GREAT
LAKES, MID-ATLANTIC, SOUTHEAST, AND LOWER MISSISSIPPI VALLEY BY
FRIDAY. ON WEDNESDAY, THE SYSTEM WILL CREATE SHOWERS AND
THUNDERSTORMS FROM THE GREAT LAKES SOUTHWARD TO THE
TENNESSEE/LOWER MISSISSIPPI VALLEYS. THE FRONT WILL ALSO PRODUCE
SHOWERS AND SEVERE THUNDERSTORMS OVER PARTS OF WESTERN TENNESSEE,
NORTHERN MISSISSIPPI, NORTHEASTERN LOUISIANA, AND EXTREME
SOUTHEASTERN ARKANSAS. THEREFORE, THE SPC HAS ISSUED A SLIGHT RISK
OF SEVERE THUNDERSTORMS OVER PARTS OF THE LOWER MISSISSIPPI
VALLEY/TENNESSEE VALLEY THROUGH THURSDAY MORNING. THE HAZARDS
ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE
THUNDERSTORM WIND GUSTS, HAIL, AND A MINIMAL THREAT OF TORNADOES.
ON THURSDAY, THE THREAT OF SEVERE THUNDERSTORMS REDUCES SLIGHTLY.
AS THE FRONT MOVES EASTWARD, SHOWERS AND STRONG TO SEVERE
THUNDERSTORMS WILL DEVELOP OVER PARTS OF NEW YORK STATE,
PENNSYLVANIA, MARYLAND, VIRGINIA, WEST VIRGINIA, AND PARTS OF NEW
JERSEY/DELAWARE. THEREFORE, THE SPC HAS ISSUED A MARGINAL RISK OF
SEVERE THUNDERSTORMS OVER PARTS OF THE NORTHEAST, MID-ATLANTIC,
AND CENTRAL APPALACHIANS FROM THURSDAY INTO FRIDAY MORNING. THE
HAZARDS ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT
LIGHTNING, SEVERE THUNDERSTORM WIND GUSTS, AND A MINIMAL THREAT OF
TORNADOES AND HAIL.
MOREOVER, UPPER-LEVEL ENERGY AND A DEVELOPING FRONT OVER THE
NORTHERN ROCKIES WILL PRODUCE SHOWERS AND THUNDERSTORMS OVER PARTS
OF THE NORTHERN INTERMOUNTAIN REGION/NORTHERN ROCKIES FROM
WEDNESDAY INTO WEDNESDAY NIGHT. FURTHERMORE, AN UPPER-LEVEL
IMPULSE WILL CREATE SHOWERS AND THUNDERSTORMS OVER PARTS OF THE
MIDDLE/LOWER MISSISSIPPI VALLEY AND SOUTHERN PLAINS LATE THURSDAY
NIGHT INTO FRIDAY.
MEANWHILE, UPPER-LEVEL RIDGING OVER THE NORTHEAST WILL WANE ON
WEDNESDAY AS UPPER-LEVEL ENERGY MOVES EASTWARD FROM THE GREAT
LAKES. UNFORTUNATELY, THE HOT TEMPERATURES OVER THE REGION WILL
CONTINUE INTO THURSDAY, PROMPTING HEAT ADVISORIES OVER THE
NORTHEAST ON WEDNESDAY. IN ADDITION, AN UPPER-LEVEL HIGH WILL
RETURN TO TEXAS, AIDING IN THE DEVELOPMENT OF HOT TEMPERATURES
OVER THE REGION PROMPTING HEAT ADVISORIES OVER THE SOUTHERN
PLAINS/LOWER MISSISSIPPI VALLEY. THE HOT TEMPERATURES WILL
CONTINUE OVER THE AREA THROUGH FRIDAY.
LASTLY, SMOKE FROM WILDFIRES IN WEST-CENTRAL CANADA WILL REDUCE
AIR QUALITY OVER PARTS OF THE NORTHERN HIGH PLAINS, CENTRAL
PLAINS, AND UPPER MISSISSIPPI VALLEY, PROMPTING AIR QUALITY
WARNINGS AND DENSE SMOKE ADVISORIES OVER THE AREA.
ZIEGENFELDER
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HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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