295
FXUS01 KWBC 082012
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
411 PM EDT TUE SEP 08 2026
VALID 00Z WED SEP 09 2026 - 00Z FRI SEP 11 2026
...THERE IS A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER
PARTS OF THE MIDDLE MISSISSIPPI VALLEY ON TUESDAY AND WEDNESDAY...
...THERE IS A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER
PARTS OF THE SOUTHWEST ON WEDNESDAY AND THE OHIO VALLEY ON
THURSDAY....
...THERE IS A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER
PARTS OF THE MIDDLE MISSISSIPPI VALLEY ON WEDNESDAY...
...THERE IS A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER
PARTS OF THE OHIO VALLEY AND LOWER GREAT LAKES ON THURSDAY...
A FRONT EXTENDING FROM THE UPPER GREAT LAKES TO THE CENTRAL PLAINS
AND THEN WESTWARD TO THE GREAT BASIN WILL MOVE EASTWARD TO THE
NORTHEAST, THEN INTO THE OHIO VALLEY AND THEN INTO THE SOUTHERN
PLAINS BY THURSDAY EVENING. THE SYSTEM WILL PRODUCE SHOWERS AND
THUNDERSTORMS FROM THE GREAT LAKES TO THE CENTRAL/SOUTHERN
ROCKIES, THEN MOVE EASTWARD TO THE MID-ATLANTIC, THE
OHIO/TENNESSEE VALLEYS, AND INTO THE CENTRAL SOUTHERN PLAINS BY
THURSDAY. HEAVY RAIN WILL DEVELOP OVER PARTS OF THE MIDDLE
MISSISSIPPI VALLEY ON TUESDAY. THEREFORE, THE WPC HAS ISSUED A
SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE
MIDDLE MISSISSIPPI VALLEY ON TUESDAY INTO WEDNESDAY MORNING. THE
ASSOCIATED HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH
FLOODING, WITH URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING
AREAS BEING THE MOST VULNERABLE.
SIMILARLY, THE SPC HAS ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE
THUNDERSTORMS OVER THE MIDDLE MISSISSIPPI VALLEY THROUGH WEDNESDAY
MORNING. THE HAZARDS ASSOCIATED WITH THESE THUNDERSTORMS ARE
FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND GUSTS, HAIL, AND A
FEW TORNADOES.
ON WEDNESDAY, THE THREAT OF EXCESSIVE RAINFALL CONTINUES OVER THE
MIDDLE MISSISSIPPI VALLEY/CENTRAL PLAINS. THEREFORE, THE WPC HAS
ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS
OF THE MIDDLE MISSISSIPPI VALLEY/CENTRAL PLAINS ON WEDNESDAY INTO
THURSDAY MORNING. THE ASSOCIATED HEAVY RAIN WILL CREATE MAINLY
LOCALIZED AREAS OF FLASH FLOODING, WITH URBAN AREAS, ROADS, SMALL
STREAMS, AND LOW-LYING AREAS BEING THE MOST VULNERABLE.
IN ADDITION, ON WEDNESDAY, SHOWERS AND THUNDERSTORMS WILL PRODUCE
HEAVY RAIN OVER PARTS OF THE SOUTHWEST. THEREFORE, THE WPC HAS
ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS
OF THE SOUTHWEST ON WEDNESDAY INTO THURSDAY MORNING. THE
ASSOCIATED HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH
FLOODING, WITH URBAN AREAS, ROADS, SMALL STREAMS, LOW-LYING AREAS,
AND BURN SCARS BEING THE MOST VULNERABLE.
FURTHERMORE, SHOWERS AND SEVERE THUNDERSTORMS WILL DEVELOP OVER
PARTS OF THE LOWER GREAT LAKES ON WEDNESDAY. THEREFORE, THE SPC
HAS ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER
THE LOWER GREAT LAKES ON WEDNESDAY MORNING THROUGH THURSDAY
MORNING. THE HAZARDS ASSOCIATED WITH THESE THUNDERSTORMS ARE
FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND GUSTS, HAIL, AND A
FEW TORNADOES.
ON THURSDAY, SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP
ALONG AND AHEAD OF THE BOUNDARY FROM PARTS OF THE NORTHEAST TO THE
CENTRAL/SOUTHERN PLAINS. HEAVY RAIN WILL DEVELOP OVER PARTS OF THE
OHIO VALLEY/CENTRAL APPALACHIANS. THEREFORE, THE WPC HAS ISSUED A
SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE
OHIO VALLEY/CENTRAL APPALACHIANS ON THURSDAY. THE ASSOCIATED
HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH FLOODING,
WITH URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING AREAS BEING
THE MOST VULNERABLE.
SHOWERS AND THUNDERSTORMS WILL DEVELOP FROM THE SOUTHEAST COAST TO
PARTS OF THE MIDDLE AND WESTERN GULF COAST THROUGH THURSDAY
EVENING. ELSEWHERE, ON THURSDAY AFTERNOON, SHOWERS AND
THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE NORTHERN
INTERMOUNTAIN REGION/NORTHERN ROCKIES.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
EXTREME HEAT KEY MESSAGES AVAILABLE AT:
HTTPS://WWW.WPC.NCEP.NOAA.GOV/KEY_MESSAGES/LATESTKEYMESSAGE_1.PNG
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page