506
FXUS01 KWBC 282026
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
425 PM EDT WED AUG 28 2024
VALID 00Z THU AUG 29 2024 - 00Z SAT AUG 31 2024
...ABOVE AVERAGE HEAT EXPECTED TO LINGER ACROSS THE OHIO AND
TENNESSEE VALLEYS THROUGH FRIDAY...
...SEVERE THUNDERSTORMS AND FLASH FLOODING POSSIBLE ACROSS THE
UPPER MIDWEST, CENTRAL PLAINS, MID-ATLANTIC, AND CENTRAL GULF
COAST THURSDAY THROUGH EARLY FRIDAY...
RECORD-SETTING HIGH TEMPERATURES OVER THE MID-ATLANTIC SHOULD
ABATE AFTER TODAY, BUT THE WARM TEMPERATURES IN THE OHIO AND
TENNESSEE VALLEYS SHOULD PERSIST THROUGH FRIDAY WITH HIGHS IN THE
MID-TO-UPPER 90S ACROSS MUCH OF THE AREA. ABOVE AVERAGE OVERNIGHT
LOW TEMPERATURES WILL PROVIDE LITTLE RELIEF, LOWS WILL LIKELY STAY
IN THE 70S FOR MUCH OF THE REGION. PRECIPITATION CHANCES WITH THE
APPROACHING FRONT SHOULD QUELL THE TEMPERATURES GOING INTO THE
WEEKEND.
A COLD FRONT EXTENDING FROM AN AREA OF LOW PRESSURE IN CANADA WILL
MOVE EASTWARD ACROSS THE MIDDLE OF THE COUNTRY OVER THE NEXT
COUPLE DAYS AND BRING A RISK FOR SEVERE THUDERSTORMS TO MUCH OF
THE UPPER MIDWEST. THE STORM PREDICTION CENTER HAS ISSUED A SLIGHT
RISK OF SEVERE THUNDERSTORMS (LEVEL 2/5) FOR THURSDAY, SCATTERED
SEVERE THUNDERSTORMS ARE EXPECTED TO BE ORGANIZED AND THERE MAY BE
EMBEDDED SUPERCELLS THAT MAY CONTAIN DAMAGING WINDS, LARGE HAIL,
AND A FEW TORNADOES. MEANWHILE, A FRONTAL BOUNDARY WILL SAG SOUTH
INTO THE MID-ATLANTIC, WHERE THUNDERSTORMS MAY CONTAIN SOME GUSTY
WINDS AND HEAVY RAIN MAY LEAD TO ISOLATED TO SCATTERED INSTANCES
OF FLASH FLOODING. A SLIGHT RISK OF EXCESSIVE RAINFALL (LEVEL 2/4)
IS IN EFFECT THURSDAY ACROSS THE MID-ATLANTIC WHERE 2-4 INCHES OF
RAINFALL WILL BE POSSIBLE IN ANY LOCALLY STRONG THUNDERSTORMS. AS
THE FRONTAL SYSTEM PROGRESSES, THE RISK FOR ISOLATED INSTANCES OF
FLASH FLOODING WILL SHIFT EAST ON FRIDAY, AND THERE IS A MARGINAL
RISK OF EXCESSIVE RAINFALL (LEVEL 1/4) FROM THE EASTERN GREAT
LAKES THROUGH THE MIDDLE MISSISSIPPI VALLEY TO THE SOUTHERN
PLAINS. SEPARATE FROM THE FRONTAL SYSTEM ACROSS THE NORTHER TIER
OF THE COUNTRY, ENHANCED MOISTURE AROUND THE GULF COAST HAS
INCREASED THE THREAT FOR HEAVY RAIN AND FLOODING, SO A SLIGHT RISK
OF EXCESSIVE RAINFALL (LEVEL 2/4) HAS BEEN ISSUED FOR THE EAST
TEXAS GULF COAST FOR THURSDAY AND FRIDAY.
ACROSS THE REST OF THE COUNTRY, A GENERAL COOLDOWN IS EXPECTED
BEHIND THE COLD FRONT ACROSS THE NORTH-CENTRAL U.S. AND HIGH
TEMPERATURES SHOULD BE GENERALLY IN THE MIDDLE 80S. MUCH OF THE
SOUTHEAST SHOULD BE WARM AND HUMID WITH COMMONPLACE HIGH
TEMPERATURES IN THE MIDDLE 90S. THE WESTERN U.S. SHOULD BE WARM
WITH ABOVE AVERAGE TEMPERATURES FOR MOST OF THE REGION.
WILDER
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