912
FXUS01 KWBC 300736
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
335 AM EDT MON JUN 30 2025
VALID 12Z MON JUN 30 2025 - 12Z WED JUL 02 2025
...THERE IS A SLIGHT RISK OF EXCESSIVE RAINFALL OVER PARTS OF THE
CENTRAL/SOUTHERN PLAINS AND SOUTHERN ROCKIES/SOUTHERN HIGH PLAINS
ON MONDAY AND THE MID-ATLANTIC ON TUESDAY...
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE MID-ATLANTIC ON TUESDAY...
A FRONT EXTENDING FROM THE UPPER GREAT LAKES, MIDDLE MISSISSIPPI
VALLEY, AND CENTRAL/SOUTHERN PLAINS WILL MOVE EASTWARD TO THE
NORTHEAST COAST/MID-ATLANTIC/SOUTHEAST AND THEN WESTWARD INTO THE
LOWER MISSISSIPPI VALLEY/SOUTHERN PLAINS BY WEDNESDAY. SHOWERS AND
STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE
BOUNDARY OVER PARTS OF THE GREAT LAKES/OHIO VALLEY AND MIDDLE
MISSISSIPPI VALLEY INTO THE SOUTHERN PLAINS. IN ADDITION, THE
SHOWERS AND THUNDERSTORMS WILL PRODUCE HEAVY RAIN OVER PARTS OF
THE CENTRAL/SOUTHERN PLAINS. THEREFORE, THE WPC HAS ISSUED A
SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE
CENTRAL/SOUTHERN PLAINS THROUGH TUESDAY MORNING. THE ASSOCIATED
HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH FLOODING,
WITH URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING AREAS THE
MOST VULNERABLE.
MOREOVER, UPPER-LEVEL ENERGY AND MOISTURE MOVING NORTHWESTWARD
OVER THE SOUTHERN PLAINS INTO THE SOUTHERN ROCKIES WILL PRODUCE
SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN OVER PARTS OF THE
SOUTHERN ROCKIES/SOUTHERN HIGH PLAINS. THEREFORE, THE WPC HAS
ISSUED A SLIGHT RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS
OF THE SOUTHERN ROCKIES/SOUTHERN HIGH PLAINS THROUGH TUESDAY
MORNING. THE ASSOCIATED HEAVY RAIN WILL CREATE MAINLY LOCALIZED
AREAS OF FLASH FLOODING, WITH URBAN AREAS, ROADS, SMALL STREAMS,
AND LOW-LYING AREAS THE MOST VULNERABLE.
SOUTH AND EAST OF THE FRONT, UPPER-LEVEL IMPULSES, DAYTIME
HEATING, AND MOISTURE WILL CREATE SHOWERS AND THUNDERSTORMS OVER
THE OHIO/TENNESSEE VALLEYS, SOUTHERN PLAINS, LOWER MISSISSIPPI
VALLEY, AND THE SOUTHEAST.
ON TUESDAY, AS THE FRONT MOVES OUT OF THE OHIO VALLEY INTO THE
MID-ATLANTIC, SHOWERS AND SEVERE THUNDERSTORMS WILL DEVELOP OVER
PARTS OF THE MID-ATLANTIC. THEREFORE, THE SPC HAS ISSUED A SLIGHT
RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS OVER PARTS OF THE
MID-ATLANTIC FROM TUESDAY THROUGH WEDNESDAY MORNING. THE HAZARDS
ASSOCIATED WITH THESE THUNDERSTORMS ARE FREQUENT LIGHTNING, SEVERE
THUNDERSTORM WIND GUSTS, AND A MINIMAL THREAT OF TORNADOES AND
HAIL.
THE SHOWERS AND THUNDERSTORMS WILL ALSO PRODUCE HEAVY RAIN OVER
PARTS OF THE MID-ATLANTIC. THEREFORE, THE WPC HAS ISSUED A SLIGHT
RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL OVER PARTS OF THE
MID-ATLANTIC FROM TUESDAY THROUGH WEDNESDAY MORNING. THE
ASSOCIATED HEAVY RAIN WILL CREATE MAINLY LOCALIZED AREAS OF FLASH
FLOODING, WITH URBAN AREAS, ROADS, SMALL STREAMS, AND LOW-LYING
AREAS THE MOST VULNERABLE.
FURTHER, ON TUESDAY, UPPER-LEVEL IMPULSES, DAYTIME HEATING, AND
MOISTURE WILL CREATE SHOWERS AND THUNDERSTORMS OVER PARTS OF THE
SOUTHERN HIGH PLAINS, THE SOUTHEAST, TENNESSEE VALLEYS, AND THE
GULF COAST STATES. SIMILARLY, UPPER-LEVEL IMPULSES, DAYTIME
HEATING, AND MOISTURE WILL CREATE SHOWERS AND THUNDERSTORMS OVER
PARTS OF NORTHERN CALIFORNIA, GREAT BASIN, SOUTHWEST, AND
CENTRAL/SOUTHERN ROCKIES.
ELSEWHERE, UPPER-LEVEL RIDGING WILL BUILD INTO PARTS OF THE
PACIFIC NORTHWEST, PROMPTING HEAT ADVISORIES OVER PARTS OF
WASHINGTON STATE, OREGON, AND IDAHO FROM MONDAY MORNING INTO
TUESDAY EVENING. FURTHERMORE, AS THE UPPER-LEVEL RIDGING EXTENDS
INTO THE SOUTHWEST, EXTREME HEAT WARNINGS ARE POSTED OVER PARTS OF
THE SOUTHWEST ON MONDAY AND TUESDAY.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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