455
FXUS01 KWBC 191925
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
323 PM EDT SAT SEP 19 2026
VALID 00Z SUN SEP 20 2026 - 00Z TUE SEP 22 2026
...THERE IS A MODERATE RISK (LEVEL 3/4) OF EXCESSIVE RAINFALL OVER
PARTS OF THE UPPER GREAT LAKES, INTO PARTS OF THE MIDDLE
MISSISSIPPI VALLEY, AND OVER PARTS OF THE NORTHERN HIGH PLAINS ON
SATURDAY....
...THERE IS A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER
PARTS OF THE NORTHERN/CENTRAL PLAINS AND NORTHERN ROCKIES ON
SUNDAY AND THE NORTHERN ROCKIES AND NORTHERN HIGH PLAINS ON
SATURDAY...
...THERE IS A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER
PARTS OF THE CENTRAL/SOUTHERN PLAINS AND CENTRAL HIGH PLAINS ON
SATURDAY AND CENTRAL HIGH PLAINS AND SOUTHERN PLAINS ON SUNDAY...
A WAVE OF LOW PRESSURE OVER THE MIDDLE MISSISSIPPI VALLEY WILL
MOVE EASTWARD OFF THE NORTHEAST COAST BY MONDAY AND PRODUCE HEAVY
RAIN OVER PARTS OF THE UPPER GREAT LAKES INTO PARTS OF THE MIDDLE
MISSISSIPPI VALLEY. THEREFORE, THE WPC HAS ISSUED A MODERATE RISK
(LEVEL 3/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE UPPER GREAT
LAKES INTO PARTS OF THE MIDDLE MISSISSIPPI VALLEY THROUGH SUNDAY
MORNING. NUMEROUS FLASH FLOODING EVENTS ARE POSSIBLE. IN ADDITION,
MANY STREAMS MAY FLOOD, POTENTIALLY AFFECTING LARGER RIVERS.
ON SUNDAY, SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP
ALONG THE FRONT, PRODUCING HEAVY RAIN OVER PARTS OF THE OHIO
VALLEY INTO PARTS OF THE MIDDLE MISSISSIPPI VALLEY. THEREFORE, THE
WPC HAS ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL
OVER PARTS OF THE OHIO VALLEY/UPPER GREAT LAKES/MIDDLE MISSISSIPPI
VALLEY ON SUNDAY INTO MONDAY 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, A SECOND WAVE OF LOW PRESSURE OVER THE NORTHERN HIGH
PLAINS ON SATURDAY WILL PRODUCE SHOWERS AND THUNDERSTORMS WITH
HEAVY RAIN. THEREFORE, THE WPC HAS ISSUED A MODERATE RISK (LEVEL
3/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE NORTHERN HIGH PLAINS
SATURDAY INTO SUNDAY MORNING. NUMEROUS FLASH FLOODING EVENTS ARE
POSSIBLE. IN ADDITION, MANY STREAMS MAY FLOOD, POTENTIALLY
AFFECTING LARGER RIVERS.
SIMILARLY, SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WILL DEVELOP
OVER PARTS OF THE NORTHERN HIGH PLAINS ON SUNDAY. THEREFORE, THE
WPC HAS ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL
OVER PARTS OF THE NORTHERN HIGH PLAINS ON SUNDAY INTO MONDAY
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.
THE SPC HAS ALSO ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE
THUNDERSTORMS OVER PARTS OF THE CENTRAL HIGH PLAINS AND THE
CENTRAL/SOUTHERN PLAINS THROUGH SUNDAY MORNING. THE HAZARDS
ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE
THUNDERSTORM WIND GUSTS, HAIL, AND A MINIMAL THREAT OF TORNADOES.
LIKEWISE, THE SPC HAS ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE
THUNDERSTORMS OVER PARTS OF THE CENTRAL HIGH PLAINS FROM SUNDAY
THROUGH MONDAY MORNING. THE HAZARDS ASSOCIATED WITH THESE
THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND
GUSTS, HAIL, AND A FEW TORNADOES.
ADDITIONALLY, THE SPC HAS ISSUED A SLIGHT RISK (LEVEL 2/5) OF
SEVERE THUNDERSTORMS OVER PARTS OF THE SOUTHERN PLAINS FROM SUNDAY
THROUGH MONDAY MORNING. THE HAZARDS ASSOCIATED WITH THESE
THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE THUNDERSTORM WIND
GUSTS, HAIL, AND A MINIMAL THREAT OF TORNADOES.
ELSEWHERE, SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF
FLORIDA AND THE SOUTHEAST THROUGH MONDAY EVENING.
ZIEGENFELDER
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HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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