614  
FXUS01 KWBC 272001  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
400 PM EDT MON OCT 27 2025  
 
VALID 00Z TUE OCT 28 2025 - 00Z THU OCT 30 2025  
 
...UNSETTLED WEATHER AND COOL TEMPERATURES CONTINUE ACROSS THE  
SOUTHEAST AND SOUTHERN APPALACHIANS THROUGH TOMORROW WITH SOME  
ISOLATED FLASH FLOODING POSSIBLE...  
 
...A NEW STORM SYSTEM WILL ORGANIZE ACROSS THE MIDDLE AND LOWER  
MISSISSIPPI VALLEY BY MIDWEEK WITH WIDESPREAD SHOWERS AND  
THUNDERSTORMS EXPECTED...  
 
...BELOW AVERAGE TEMPERATURES TO OVERSPREAD THE CENTRAL AND  
EASTERN HALF OF THE LOWER 48 BEGINNING TOMORROW...  
 
WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE  
ACROSS THE SOUTHEAST AND SOUTHERN APPALACHIANS TONIGHT AS A  
DEVELOPING COASTAL LOW MAINTAINS THE INFLUX OF MOISTURE FROM THE  
ATLANTIC. THE LATEST EXCESSIVE RAINFALL FORECAST HIGHLIGHTS THE  
POTENTIAL FOR ISOLATED FLASH FLOODING ALONG THE EASTERN FLORIDA  
COAST, AS ADDITIONAL HEAVY RAINFALL TODAY COULD OVERLAP WITH AREAS  
WHICH WERE HIT HARD FROM STATIONARY STORMS YESTERDAY. PER THE  
STORM PREDICTION CENTER, A FEW INSTANCES OF SEVERE WIND GUSTS ARE  
POSSIBLE OVER THE SAME AREA. FOR THE REST OF THE SOUTHEAST AND  
LOWER MID-ATLANTIC, HOWEVER, THIS RAINFALL SHOULD PROVIDE SOME  
RESPITE FROM THE PREVAILING DROUGHT CONDITIONS OVER THE REGION.  
 
OVER THE HEARTLAND, SHOWERS AND THUNDERSTORMS AHEAD OF AN  
AMPLIFYING UPPER-TROUGH AND ACCOMPANYING COLD FRONT WILL SHIFT  
FROM THE NORTHERN PLAINS INTO THE MISSOURI VALLEY AND CENTRAL  
PLAINS TONIGHT. THEN, ON TUESDAY, THE TROUGH WILL BEGIN TO DIG  
DEEPLY SOUTHWARD HELPING TO ORGANIZE ANOTHER LOW PRESSURE SYSTEM  
OVER THE MIDDLE TO LOWER MISSISSIPPI VALLEY. WIDESPREAD SHOWERS  
AND THUNDERSTORMS WITH SOME LOCALLY HEAVY RAINFALL ARE EXPECTED,  
POTENTIALLY LEADING TO ISOLATED FLASH FLOODING ACROSS THE  
MID-SOUTH. IN THE PACIFIC NORTHWEST, ANOTHER ROUND OF COASTAL RAIN  
AND ELEVATION SNOWS WILL RETURN TOMORROW WITH THE APPROACH OF A  
STRONG PACIFIC SYSTEM LIFTING INTO BRITISH COLUMBIA. HOWEVER,  
AMOUNTS WILL REMAIN MUCH MORE MODERATE COMPARED TO THE PREVIOUS  
SYSTEM, AND SHOULD TAPER OFF RATHER QUICKLY INTO WEDNESDAY.  
 
BY MIDWEEK, EXPECT BELOW AVERAGE TEMPERATURES TO OVERSPREAD THE  
CENTRAL AND EASTERN HALF OF THE LOWER 48 AS THE MISSISSIPPI VALLEY  
LOW PRESSURE ORGANIZES ALONG A STRONG COLD FRONT. THIS FRONTAL  
PASSAGE COULD BRING THE FIRST FREEZE OF THE SEASON TO PARTS OF THE  
CENTRAL AND SOUTHERN PLAINS LATE TUESDAY NIGHT, WHERE A SWATH OF  
FREEZE WATCHES ARE IN EFFECT. THIS FRONT WILL BE AN ABRUPT CHANGE  
FOR THE SOUTHERN PLAINS, WHERE HIGHS COULD REACH THE MID-80S AND  
90S TODAY AND POTENTIALLY SET A FEW DAILY HIGH TEMPERATURE  
RECORDS. ELSEWHERE, ANOMALOUSLY WARM WEATHER WILL LINGER OVER  
SOUTHERN CALIFORNIA THROUGH WEDNESDAY WITH A HEAT ADVISORY NOW IN  
EFFECT FOR HIGHS IN THE 80S AND 90S.  
 
ASHERMAN/PUTNAM  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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