259
FXUS01 KWBC 171959
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
359 PM EDT SAT AUG 17 2024
VALID 00Z SUN AUG 18 2024 - 00Z TUE AUG 20 2024
...UNSETTLED CONDITIONS FOR PORTIONS OF THE EASTERN U.S. WITH
STRONG TO SEVERE THUNDERSTORMS ALONG WITH AREAS OF POSSIBLE FLASH
FLOODING...
...DANGEROUS HEAT AND HUMIDITY WILL CONTINUE ACROSS THE SOUTHERN
PLAINS TO THE GULF COAST THROUGH MONDAY...
...FIRE WEATHER CONCERNS CONTINUE FOR WESTERN PORTIONS OF THE
GREAT BASIN THIS WEEKEND WHILE SEVERE THUNDERSTORM AND FLASH FLOOD
POTENTIAL EXIST FROM UTAH INTO PARTS OF ARIZONA...
LOCATIONS NEAR AND AHEAD OF A SLOW MOVING COLD FRONT IN THE
MIDWEST WILL SEE INCREASED POTENTIAL FOR THUNDERSTORMS WITH
COVERAGE AND INTENSITY PEAKING IN THE AFTERNOON AND EVENING. THE
AIRMASS AHEAD OF THE FRONT FROM THE OHIO VALLEY TO MUCH OF THE
EAST COAST WILL BE HUMID, CONTAINING THE POTENTIAL FOR SLOW MOVING
STORMS CAPABLE OF PRODUCING AREAS OF FLASH FLOODING, ALONG WITH
SEVERE WEATHER, MAINLY IN THE FORM OF DAMAGING STRAIGHT LINE
WINDS. SIMILAR THREATS WILL SHIFT EAST FOR SUNDAY AHEAD OF THE
COLD FRONT WITH FLASH FLOOD AND SEVERE WEATHER THREATS EXTENDING
FROM THE NORTHERN MID-ATLANTIC REGION INTO THE SOUTHEAST. BY
MONDAY, COOLER AND DRIER CONDITIONS WILL BEGIN TO SPREAD EAST FROM
THE UPPER MIDWEST INTO THE OHIO VALLEY AS THUNDERSTORM AND FLOOD
RISKS CONTINUE TO TRANSLATE EASTWARD.
AN UPPER LEVEL RIDGE WILL REMAIN QUASI-STATIONARY TO THE SOUTH OF
THE FRONT OVER THE SOUTHERN HIGH PLAINS THROUGH EARLY NEXT WEEK.
THIS FEATURE WILL MAINTAIN HIGH TEMPERATURES FROM THE UPPER 90S TO
MIDDLE 100S FROM EASTERN NEW MEXICO INTO TEXAS AND THE CENTRAL
GULF COAST THROUGH MONDAY. SOME DAILY RECORD HIGH TEMPERATURES
COULD BE BROKEN ACROSS THESE SAME REGIONS. PEOPLE LIVING IN THESE
LOCATIONS SHOULD BE AWARE OF AND PLAN FOR THE HEAT BY VISITING
HEAT.GOV FOR MORE INFORMATION.
THE WESTERN U.S. WILL ALSO BE FAIRLY ACTIVE OVER THE NEXT FEW
DAYS. A SLOW MOVING UPPER LEVEL TROUGH OFF OF THE PACIFIC
NORTHWEST AND RIDGE OVER THE SOUTHERN HIGH PLAINS WILL FOCUS
ANOMALOUS MOISTURE AND A FAVORABLE ATMOSPHERIC PROFILE FOR FLASH
FLOODING AND SEVERE STRAIGHT LINE WINDS ACROSS PORTIONS OF UTAH
AND SURROUNDING ADJACENT STATES. FARTHER WEST, DRIER CONDITIONS
COMBINED WITH GUSTY WINDS WILL PROMOTE A DANGEROUS ENVIRONMENT FOR
THE SPREADING OF WILDFIRES. THE STORM PREDICTION CENTER HAS A
CRITICAL RISK FOR WILDFIRES OVER SOUTH-CENTRAL NEVADA AND
SOUTHEASTERN OREGON TODAY WITH SIMILAR LOCATIONS AT RISK ON
SUNDAY, THOUGH THE RISK MAY BE SLIGHTLY LOWER ON SUNDAY COMPARED
TO TODAY.
OTTO
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