307
FXUS01 KWBC 100822
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
421 AM EDT WED JUN 10 2026
VALID 12Z WED JUN 10 2026 - 12Z FRI JUN 12 2026
...THERE IS AN ENHANCED RISK (LEVEL 3/5) OF SEVERE THUNDERSTORMS
OVER PARTS OF THE UPPER/MIDDLE MISSISSIPPI VALLEY/GREAT LAKES ON
WEDNESDAY, AND OVER THE GREAT LAKES/MIDDLE MISSISSIPPI VALLEY ON
THURSDAY...
...THERE IS A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER
PARTS OF THE UPPER/MIDDLE MISSISSIPPI VALLEY/GREAT LAKES ON
WEDNESDAY AND THURSDAY...
A FRONT EXTENDING FROM THE NORTHERN PLAINS TO THE CENTRAL PLAINS
ON WEDNESDAY WILL MOVE EASTWARD TO THE GREAT LAKES/OHIO VALLEY TO
THE SOUTHERN PLAINS BY FRIDAY MORNING, TRIGGERING SHOWERS AND
SEVERE THUNDERSTORMS OVER THE UPPER/MIDDLE MISSISSIPPI
VALLEY/GREAT LAKES. THEREFORE, THE SPC HAS ISSUED AN ENHANCED RISK
(LEVEL 3/5) OF SEVERE THUNDERSTORMS OVER PARTS OF THE UPPER/MIDDLE
MISSISSIPPI VALLEY/GREAT LAKES THROUGH THURSDAY MORNING. THE
HAZARDS ASSOCIATED WITH THESE THUNDERSTORMS INCLUDE FREQUENT
LIGHTNING, SEVERE WIND GUSTS, HAIL, AND THE THREAT OF TORNADOES.
IN ADDITION, THE SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY
RAIN. THEREFORE, THE WPC ISSUED A SLIGHT RISK (LEVEL 2/4) OF
EXCESSIVE RAINFALL OVER PARTS OF THE UPPER/MIDDLE MISSISSIPPI
VALLEY/GREAT LAKES THROUGH THURSDAY MORNING. THE ASSOCIATED HEAVY
RAIN WILL MAINLY CAUSE LOCALIZED FLASH FLOODING, WITH URBAN AREAS,
ROADS, SMALL STREAMS, AND LOW-LYING AREAS MOST VULNERABLE.
MOREOVER, SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF THE
NORTHEAST/MID-ATLANTIC, SOUTHEASTERN TEXAS, AND FLORIDA ON
WEDNESDAY. FURTHERMORE, SHOWERS AND THUNDERSTORMS WILL BE CREATED
ALONG AND EAST OF THE DRYLINE OVER THE SOUTHERN PLAINS DURING THE
LATE AFTERNOON INTO THE LATE EVENING HOURS.
ON THURSDAY, THE SHOWERS AND SEVERE THUNDERSTORMS MOVE EASTWARD
WITH THE ASSOCIATED BOUNDARY OVER THE GREAT LAKES/OHIO/MIDDLE
MISSISSIPPI VALLEYS. THEREFORE, THE SPC HAS ISSUED AN ENHANCED
RISK (LEVEL 3/5) OF SEVERE THUNDERSTORMS OVER PARTS OF THE GREAT
LAKES/OHIO AND THE MIDDLE MISSISSIPPI VALLEYS FROM THURSDAY
THROUGH FRIDAY MORNING. THE HAZARDS ASSOCIATED WITH THESE
THUNDERSTORMS INCLUDE FREQUENT LIGHTNING, SEVERE WIND GUSTS, HAIL,
AND THE THREAT OF TORNADOES. ALSO, ON THURSDAY, SHOWERS AND
THUNDERSTORMS WILL MOVE INTO THE MID-ATLANTIC/NORTHEAST IN THE
AFTERNOON AND INTO THE LATE EVENING.
THE SHOWERS AND SEVERE THUNDERSTORMS WILL PRODUCE HEAVY RAIN.
THEREFORE, THE WPC ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE
RAINFALL OVER PARTS OF THE UPPER/MIDDLE MISSISSIPPI VALLEY/GREAT
LAKES FROM THURSDAY THROUGH FRIDAY MORNING. THE ASSOCIATED WITH
THE HEAVY RAIN WILL MAINLY CAUSE LOCALIZED FLASH FLOODING, WITH
URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING AREAS MOST
VULNERABLE.
ON FRIDAY, THE SHOWERS AND THUNDERSTORMS WILL ADVANCE FARTHER
EASTWARD OVER THE LOWER GREAT LAKES/OHIO /MIDDLE MISSISSIPPI
VALLEYS INTO THE SOUTHERN PLAINS. LIGHT RAIN WILL DEVELOP OVER
PARTS OF THE NORTHEAST, AND SHOWERS AND THUNDERSTORMS WILL DEVELOP
OVER FLORIDA. MOREOVER, ON FRIDAY, SHOWERS WILL MOVE INTO PARTS OF
THE SOUTHWEST. MEANWHILE, ONSHORE FLOW WILL PRODUCE RAIN AND THE
HIGHEST-ELEVATION SNOW OVER PARTS OF THE NORTHWEST AND THE
NORTHERN INTERMOUNTAIN REGION THROUGH WEDNESDAY EVENING.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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