799  
FXUS01 KWBC 110736  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
335 AM EDT THU JUL 11 2024  
 
VALID 12Z THU JUL 11 2024 - 12Z SAT JUL 13 2024  
 
...STALLED SURFACE FRONT TO CAUSE SCATTERED FLASH FLOODING ACROSS  
PORTIONS OF THE MID-ATLANTIC THROUGH FRIDAY...  
 
...DANGEROUS HEAT AND RECORD HIGH TEMPERATURES TO CONTINUE FOR  
MUCH OF THE WEST THROUGH THE END OF THE WORK WEEK...  
 
A COLD FRONT ASSOCIATED WITH ONCE BERYL WILL STALL OUT ALONG THE  
EAST COAST TODAY AND BE A FOCUS FOR THUNDERSTORM ACTIVITY ACROSS  
THE MID-ATLANTIC THROUGH THE END OF THE WORK WEEK. AT LEAST A FEW  
INCHES OF RAINFALL ARE FORECAST TO IMPACT AREAS FROM COASTAL SOUTH  
CAROLINA TO SOUTHERN NEW JERSEY, INCLUDING MUCH OF THE EASTERN  
MID-ATLANTIC. A SLIGHT RISK (AT LEAST 15%) OF EXCESSIVE RAINFALL  
HAS BEEN ISSUED FOR THE VIRGINIA TIDEWATER DOWN ACROSS THE NORTH  
CAROLINA COAST TODAY AND THEN THE BROADER MID-ATLANTIC COASTAL  
REGION ON FRIDAY. NOT ONLY WILL THIS FRONTAL BOUNDARY INCREASE  
RAINFALL CHANCES, BUT DANGEROUS HEAT EXPERIENCED ACROSS THE EAST  
WILL GREATLY ABATE FOR THE END OF THE WEEK.  
 
EXTREME AND RECORD-BREAKING HEAT WILL CONTINUE THROUGHOUT MUCH OF  
THE WEST, WITH THE FOCUS BEGINNING TO SHIFT OUT OF THE PACIFIC  
NORTHWEST AND TOWARDS THE HIGH PLAINS, WHILE REMAINING IN THE  
SOUTHWEST. HIGHS ARE FORECAST TO SOAR INTO THE UPPER 90S AND  
TRIPLE DIGITS FOR THESE LOCATIONS, WITH 110S AND 120S POSSIBLE IN  
THE TYPICALLY HOT DESERT/INTERIOR VALLEY LOCATIONS OF CALIFORNIA,  
ARIZONA, AND NEVADA. DOZENS OF DAILY HIGH TEMPERATURE RECORDS ARE  
FORECAST TODAY AND FRIDAY FROM THE WEST COAST TO THE HIGH PLAINS.  
EXCESSIVE HEAT WARNINGS AND HEAT ADVISORIES REMAIN IN EFFECT FOR  
MUCH OF THE WESTERN UNITED STATES IN ORDER TO FURTHER HIGHLIGHT  
THE DANGEROUSLY HOT TEMPERATURES. THIS LEVEL OF HEAT FOR MANY  
PEOPLE WILL CREATE AN EXTREME RISK OF HEAT-RELATED ILLNESSES WHEN  
ACCESS TO ADEQUATE COOLING OR HYDRATION IS NOT AVAILABLE. BE SURE  
TO FOLLOW PROPER HEAT SAFETY, WHICH INCLUDES STAYING HYDRATED,  
WEAR LIGHT CLOTHING, AVOID OUTDOOR ACTIVITY, AND USING AIR  
CONDITIONING.  
 
ELSEWHERE, THE COMBINATION OF POWER OUTAGES FROM HURRICANE BERYL  
AND HEAT INDICES UP TO 106 DEGREES PROMPTED HEAT ADVISORIES TO BE  
ISSUED ACROSS PARTS OF SOUTHEAST TEXAS. THE STORM PREDICTION  
CENTER ISSUED A SLIGHT RISK (LEVEL 2/5) FOR SEVERE THUNDERSTORMS  
OVER PORTIONS OF SOUTHEAST ARIZONA/THE GREATER TUCSON AREA TODAY  
BETWEEN 3-8PM MST. THE MAIN CONCERN WILL BE SEVERE WIND GUSTS FROM  
THUNDERSTORMS THAT FORM IN THE NORTH NEAR THE MOGOLLON RIM AND  
WORK THEIR WAY SOUTH THROUGHOUT THE AFTERNOON. A SERIES OF DRY  
MICROBURSTS AND MCSS ARE POSSIBLE. FOR THE SOUTHERN ROCKIES,  
LOCALLY HEAVY RAIN OVERLAPPING WITH SENSITIVE BURN SCARS COULD  
CREATE CHANCES FOR ADDITIONAL ROUNDS OF FLASH FLOODING TODAY.  
FLOOD WATCHES ARE IN EFFECT.  
 
KEBEDE/SNELL  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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