262
FXUS01 KWBC 280718
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
317 AM EDT FRI JUN 28 2024
VALID 12Z FRI JUN 28 2024 - 12Z SUN JUN 30 2024
...SEVERE THUNDERSTORMS AND FLASH FLOODING POSSIBLE ACROSS
PORTIONS OF THE CENTRAL PLAINS AND MIDWEST TODAY...
...UNSETTLED WEATHER WITH THE POTENTIAL FOR HEAVY RAIN AND STRONG
STORMS ENTER THE LOWER GREAT LAKES AND UPPER OHIO VALLEY ON
SATURDAY...
...DANGEROUSLY HOT CONDITIONS WILL CONTINUE FROM PARTS OF THE
SOUTHERN PLAINS TO THE SOUTHEAST THIS WEEKEND...
A STORM SYSTEM CROSSING THE NORTHERN TIER OF THE NATION FROM THE
NORTHERN PLAINS TODAY TO NORTHERN NEW ENGLAND ON SUNDAY WILL BE
THE CATALYST FOR POCKETS OF UNSETTLED WEATHER THROUGH THE FINAL
WEEKEND OF JUNE. THE UPPER TROUGH AND AREA OF LOW PRESSURE ARE
FORECAST TO RIDE ALONG THE U.S.-CANADIAN BORDER THROUGH EARLY
SATURDAY AND USHER WARM, MOIST AIR FROM THE GULF OF MEXICO TOWARDS
THE MIDWEST. DEVELOPING THUNDERSTORMS ACROSS THE CENTRAL PLAINS
AND MIDWEST ARE ANTICIPATED TO TAKE ADVANTAGE OF THE BUOYANT
ATMOSPHERE WHILE ALSO USING NEARBY FRONTAL BOUNDARIES AS A FOCUS
FOR ORGANIZATION. SOME STORMS COULD TURN SEVERE AND CONTAIN
DAMAGING WIND GUSTS, LARGE HAIL, AND TORNADOES BETWEEN NORTHEAST
COLORADO AND THE MID-MISSISSIPPI VALLEY. ADDITIONALLY, SLOW-MOVING
AND/OR REPEATING THUNDERSTORMS COULD LEAD TO SCATTERED AREAS OF
FLASH FLOODING ACROSS PARTS OF IOWA AND CENTRAL/NORTHERN MISSOURI
INTO TONIGHT.
THE AFOREMENTIONED LOW PRESSURE SYSTEM IS FORECAST TO PUSH ACROSS
THE UPPER GREAT LAKES AND ENTER SOUTHEAST CANADA ON SATURDAY,
WHILE A WARM FRONT LIFTS NORTHWARD ACROSS THE MID-ATLANTIC AND
NORTHEAST. MEANWHILE, AN APPROACHING COLD FRONT IS FORECAST TO
NEAR THE LOWER GREAT LAKES BY SATURDAY AFTERNOON AND SPARK STRONG
TO SEVERE THUNDERSTORMS FROM THE OHIO VALLEY TO THE INTERIOR
NORTHEAST AND NORTHERN MID-ATLANTIC. DAMAGING WINDS GUSTS AND A
FEW TORNADOES ARE FORECAST TO BE THE MAIN WEATHER HAZARD,
PARTICULARLY FOR PARTS OF OHIO, PENNSYLVANIA, NORTHERN WEST
VIRGINIA AND WESTERN NEW YORK. INSTANCES OF HEAVY RAIN COULD ALSO
CREATE A FLASH FLOOD CONCERN IN URBAN AREAS AND REGIONS WITH POOR
DRAINAGE. ISOLATED TO SCATTERED DOWNPOURS AND STRONG THUNDERSTORMS
ARE ALSO POSSIBLE ALONG THE ENTIRE LENGTH OF THE COLD FRONT AS IT
STRETCHES WESTWARD ACROSS THE MID-MISSISSIPPI VALLEY,
CENTRAL/SOUTHERN PLAINS, AND SOUTHERN ROCKIES, WITH MOISTURE
LINGERING ON SUNDAY ACROSS THE FOUR CORNERS REGION.
HEAT HAS BEEN A MAJOR STORY OVER THE LAST FEW WEEKS AND WILL
CONTINUE TO IMPACT PARTS OF THE COUNTRY THROUGH THE LAST COUPLE
DAYS OF JUNE. UPPER LEVEL RIDGING IS FORECAST TO REMAIN OVER THE
SOUTH-CENTRAL U.S. TODAY BEFORE SLIDING TO THE SOUTHEAST ON
SATURDAY AND THEN RESTRENGTHENING OVER THE CENTRAL PLAINS BY THE
END OF THE WEEKEND. THIS WILL LEAD TO ABOVE AVERAGE HIGH
TEMPERATURES IMPACTING AREAS FROM THE CENTRAL/SOUTHERN PLAINS TO
THE SOUTHEAST, WITH SUMMER HEAT ALSO BUILDING ACROSS THE SOUTHWEST
AND NORTHERN HIGH PLAINS BY SUNDAY. UPPER 90S AND LOW 100S ARE THE
EXPECTED HIGH TEMPERATURES IN THE SOUTHERN PLAINS TODAY, WHERE
EXCESSIVE HEAT WARNINGS AND HEAT ADVISORIES HAVE BEEN ISSUED.
SCATTERED AFTERNOON THUNDERSTORMS MAY KEEP THE SIZZLING HEAT AT
BAY ACROSS THE SOUTHEAST, BUT HIGHS INTO THE MID-90S CAN STILL BE
EXPECTED THIS WEEKEND. IF SPENDING TIME OUTDOORS BE SURE TO FOLLOW
PROPER HEAT SAFETY BY TAKING FREQUENT BREAKS, STAYING HYDRATED,
AND CHECKING ON NEIGHBORS.
SNELL
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