285
FXUS01 KWBC 171933
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
332 PM EDT WED JUL 17 2024
VALID 00Z THU JUL 18 2024 - 00Z SAT JUL 20 2024
...GRADUALLY PROGRESSING COLD FRONT TO SPARK SCATTERED SHOWERS AND
THUNDERSTORMS ACROSS MUCH OF THE SOUTHERN TIER AND EAST OVER THE
NEXT FEW DAYS...
...HEAVY RAIN AND SEVERE WEATHER POSSIBLE THROUGHOUT THE SOUTHERN
ROCKIES AND HIGH PLAINS...
...EXCESSIVE HEAT TO CONFINE TO PARTS OF THE WEST AND SOUTHEAST BY
THE END OF THE WEEK...
A COLD FRONT STRETCHING FRONT THE LOWER GREAT LAKES/INTERIOR
NORTHEAST TO THE SOUTHERN PLAINS THIS AFTERNOON IS AIDING IN
PRODUCING WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY THAT SPANS
ACROSS MUCH OF THE SOUTH-CENTRAL AND EASTERN UNITED STATES. SOME
STORMS THAT ARE ABLE TO TAKE ADVANTAGE OF AMPLE ATMOSPHERIC
MOISTURE CONTENT AND INSTABILITY COULD PRODUCE DAMAGING WIND GUSTS
AND INTENSE RAINFALL RATES. ONE PART OF THE COUNTRY WITH GREATER
CHANCES FOR POTENT THUNDERSTORMS THROUGH THIS EVENING IS THE
NORTHEAST AND MID-ATLANTIC, WHERE A SLIGHT RISK OF BOTH SEVERE
THUNDERSTORMS AND EXCESSIVE RAINFALL EXISTS. BY THURSDAY, THE
AFOREMENTIONED COLD FRONT IS FORECAST TO SINK SOUTHWARD AND SHIFT
THE SCATTERED THUNDERSTORM POTENTIAL TO THE SOUTHERN MID-ATLANTIC
FOR THE END OF THE WEEK. THE EASTERN CAROLINAS CAN EXPECT THE
GREATEST POTENTIAL FOR THUNDERSTORMS CONTAINING HEAVY RAINFALL.
FLASH FLOODING IS ALSO A CONCERN OVER PARTS OF THE SOUTHERN PLAINS
AND LOWER MISSISSIPPI VALLEY THROUGH FRIDAY ALONG THE SAME COLD
FRONT AS IT SLIDES TOWARDS THE CENTRAL/WESTERN GULF COAST.
THUNDERSTORMS WILL BE CAPABLE OF PRODUCING SEVERAL INCHES OF RAIN
IN A SHORT PERIOD OF TIME, PARTICULARLY THROUGHOUT EASTERN
PORTIONS OF THE RED RIVER VALLEY. HEAVY RAIN AND ISOLATED TO
SCATTERED FLASH FLOOD CHANCES SHIFT TOWARDS THE CENTRAL GULF COAST
AND SOUTHEAST BY FRIDAY AS THE FRONTAL BOUNDARY STALLS OVER THE
REGION. RESIDENTS ARE REMINDED TO HAVE MULTIPLE WAYS TO RECEIVE
WARNINGS SHOULD SEVERE WEATHER STRIKE AND NEVER DRIVE THROUGH
FLOODED ROADWAYS.
ACTIVE WEATHER IS ALSO ANTICIPATED TO CONTINUE THROUGHOUT THE HIGH
PLAINS AND INTO THE SOUTHERN ROCKIES, WITH NUMEROUS THUNDERSTORMS
AND THE POTENTIAL FOR FLASH FLOODING. AMPLE ATMOSPHERIC MOISTURE
CONTENT AND A LINGERING FRONTAL BOUNDARY WILL PROVIDE A FOCUS FOR
DAILY SUMMER THUNDERSTORM CHANCES, WITH THE GREATEST SEVERE THREAT
LOCATED OVER THE HIGH PLAINS AND SCATTERED FLASH FLOODING THREAT
THROUGHOUT THE SOUTHERN ROCKIES OF NEW MEXICO. DAMAGING WIND GUSTS
AND HAIL COULD ACCOMPANY STORMS OVER EASTERN COLORADO THROUGH
TONIGHT. IN ORDER TO HIGHLIGHT THE FLASH FLOODING THREAT, FLOOD
WATCHES ARE IN EFFECT OVER MUCH OF CENTRAL AND NORTHEAST NEW
MEXICO.
THE PREVIOUSLY MENTIONED COLD FRONT DICTATING MUCH OF THE ACTIVE
WEATHER ACROSS THE COUNTRY WILL ALSO PROVIDE SOME MUCH NEEDED
RELIEF FROM OPPRESSIVE HEAT THROUGHOUT MOST OF THE CENTRAL AND
EASTERN U.S. THIS WEEK. AVERAGE TO BELOW AVERAGE HIGH TEMPERATURES
ARE FORECAST TO SPREAD FROM THE NATION'S HEARTLAND TO THE EAST AND
GULF COAST BY FRIDAY, WITH HIGHS INTO THE MID-90S CONFINING TO THE
FLORIDA PENINSULA. MEANWHILE, POTENTIALLY DANGEROUS HEAT DOES
REMAIN A CONCERN ACROSS PARTS OF THE WEST AS UPPER RIDGING SLOWLY
BUILDS OVER THE REGION. HIGHS INTO THE UPPER 90S AND LOW 100S ARE
POSSIBLE AS FAR NORTH AS THE NORTHERN GREAT BASIN AND VALLEY
REGIONS OF THE NORTHERN ROCKIES, WHICH COULD BE OF INCREASING
CONCERN FOR BUILDINGS WITHOUT ADEQUATE AIR CONDITIONING. HIGH
TEMPERATURES IN THE TRIPLE DIGITS ARE ALSO LIKELY BY FRIDAY IN THE
SOUTHWEST AND CENTRAL CALIFORNIA VALLEYS.
SNELL
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