930  
FXUS01 KWBC 101813  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
213 PM EDT FRI MAY 10 2024  
 
VALID 00Z SAT MAY 11 2024 - 00Z MON MAY 13 2024  
 
...WET WEEKEND IN STORE FOR PORTIONS OF THE CENTRAL/SOUTHERN  
PLAINS AND ADJACENT ROCKIES...  
 
...A PAIR OF FRONTAL SYSTEMS WILL BRING SHOWER AND STORM CHANCES  
FROM THE GREAT LAKES TO THE MID-ATLANTIC THIS WEEKEND...  
 
...ABOVE AVERAGE TEMPERATURES WILL SPREAD ACROSS THE WEST AND  
NORTH-CENTRAL U.S. THIS WEEKEND...  
 
A WET WEEKEND IS IN STORE FOR PORTIONS OF THE CENTRAL/SOUTHERN  
PLAINS AND ADJACENT ROCKIES AS A COOLER, MOIST AIRMASS HAS SETTLED  
IN NORTH OF A FRONTAL BOUNDARY STALLED OUT JUST SOUTH OF THE  
U.S.-MEXICO BORDER. SCATTERED, LIGHTER SHOWERS THROUGH FRIDAY  
EVENING/EARLY SATURDAY WILL BECOME MORE WIDESPREAD AND HEAVIER  
THROUGH THE DAY SATURDAY, WITH ISOLATED FLASH FLOODING POSSIBLE.  
HIGHER ELEVATIONS OF THE CENTRAL ROCKIES WILL SEE SOME SNOW,  
THOUGH ACCUMULATIONS SHOULD REMAIN MUCH LIGHTER COMPARED TO THE  
PAST COUPLE OF DAYS. THEN, ON SUNDAY, THE BOUNDARY WILL LIFT BACK  
NORTHWARD THROUGH TEXAS AND INTO THE LOWER MISSISSIPPI VALLEY AS A  
WARM FRONT, BRINGING DEEPER MOISTURE, HIGHER INSTABILITY, AND THE  
POTENTIAL FOR MORE INTENSE DOWNPOURS. A SLIGHT RISK OF EXCESSIVE  
RAINFALL (LEVEL 2/5) HAS BEEN ISSUED FOR PORTIONS OF  
CENTRAL/EASTERN TEXAS INTO THE LOWER MISSISSIPPI VALLEY FOR THE  
RISK OF SCATTERED FLASH FLOODING, PARTICULARLY WHERE ANTECEDENT  
CONDITIONS REMAIN WET DUE TO RECENT HEAVY RAINFALL IN EASTERN  
TEXAS.  
 
TO THE EAST, SHOWER AND THUNDERSTORM CHANCES WILL TAPER OFF ALONG  
THE EAST COAST FRIDAY EVENING AS A COLD FRONT PUSHES OFFSHORE,  
LINGERING LONGEST ACROSS FLORIDA. ANOTHER FRONTAL SYSTEM DROPPING  
SOUTHEAST FROM CANADA WILL BRING SOME SCATTERED SHOWERS AND  
THUNDERSTORMS TO THE UPPER MIDWEST/GREAT LAKES OVERNIGHT FRIDAY,  
THEN SPREADING INTO THE UPPER OHIO VALLEY/APPALACHIANS AND  
MID-ATLANTIC DURING THE DAY SATURDAY. STORMS WILL DIMINISH  
OVERNIGHT SATURDAY AS THIS SYSTEM DEPARTS THE EAST COAST AS WELL.  
YET ANOTHER SYSTEM IS FORECAST TO FOLLOW IN ITS WAKE, BRINGING  
SOME RENEWED SCATTERED STORM CHANCES TO THE GREAT LAKES SUNDAY.  
OTHER AREAS OF THE COUNTRY SHOULD REMAIN MOSTLY DRY THROUGH THE  
WEEKEND.  
 
AN UPPER-LEVEL RIDGE BUILDING OVER THE WEST COAST AND EASTWARD  
INTO THE NORTH-CENTRAL U.S. IS EXPECTED TO LEAD TO WIDESPREAD  
WELL-ABOVE AVERAGE TEMPERATURES ACROSS THOSE REGIONS THIS WEEKEND.  
FORECAST HIGHS SATURDAY FROM CALIFORNIA NORTHWARD INTO THE PACIFIC  
NORTHWEST WILL RANGE IN THE 80S TO LOW 90S. THE FOCUS FOR WARMER  
TEMPERATURES WILL SHIFT MORE INTO THE INTERIOR WEST/GREAT BASIN  
SUNDAY. WHILE NOT QUITE AS WARM, TEMPERATURES THROUGH THE NORTHERN  
ROCKIES INTO THE NORTHERN PLAINS WILL STILL BE WELL ABOVE AVERAGE,  
WITH HIGHS IN THE 70S TO LOW 80S EXPECTED. THESE WARMER  
TEMPERATURES WILL SPREAD INTO THE MIDWEST BY SUNDAY. IN CONTRAST,  
COOLER, BELOW AVERAGE TEMPERATURES ARE EXPECTED MOST ELSEWHERE  
ACROSS THE EASTERN AND CENTRAL U.S. FOLLOWING THE FRONTAL PASSAGE.  
FORECAST HIGHS RANGE FROM THE 50S AND 60S IN NEW ENGLAND AND THE  
MID-ATLANTIC, THE 70S TO LOW 80S ACROSS THE SOUTHEAST, AND 60S AND  
70S INTO THE CENTRAL/SOUTHERN PLAINS. AREAS OF SOUTH TEXAS AND  
FLORIDA WILL REMAIN WARMER, WITH 80S AND SOME 90S FORECAST.  
 
PUTNAM  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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