498  
FXUS01 KWBC 311927  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
327 PM EDT THU OCT 31 2024  
 
VALID 00Z FRI NOV 01 2024 - 00Z SUN NOV 03 2024  
 
...MUCH ABOVE AVERAGE TEMPERATURES EXPECTED ACROSS LARGE PORTIONS  
OF THE CENTRAL TO EASTERN U.S....  
 
..EARLY SEASON LIGHT SNOW ACCUMULATIONS POSSIBLE THURSDAY  
EVENING/NIGHT ACROSS THE WESTERN U.P. OF MICHIGAN...  
 
...HEAVY RAINS AND HIGH ELEVATIONS SNOWS EXPECTED ACROSS THE  
PACIFIC NORTHWEST INTO FAR NORTHWEST CALIFORNIA...  
 
...ADDITIONAL HEAVY RAINS AND POTENTIALLY SEVERE WEATHER ACROSS  
PORTIONS OF THE SOUTHERN TO CENTRAL PLAINS BY EARLY THIS WEEKEND...  
 
THERE HAVE BEEN MANY RECORD HIGH AFTERNOON TEMPERATURES AND RECORD  
HIGH MORNING TEMPERATURES OVER THE PAST FEW DAYS ACROSS THE  
CENTRAL TO EASTERN U.S. THE AREAL EXTENT OF RECORD TEMPERATURES  
WILL, HOWEVER, DECREASE SIGNIFICANTLY OVER THE NEXT FEW DAYS IN  
THE WAKE OF A COLD FRONT MOVING EAST THROUGH THE GREAT LAKES/OHIO  
VALLEY REGION THURSDAY NIGHT AND INTO THE NORTHEAST ON FRIDAY.  
RECORD HIGH MORNING LOWS ARE STILL POSSIBLE FRIDAY MORNING FROM  
THE MID-ATLANTIC INTO NEW ENGLAND AND RECORD AFTERNOON TEMPS ARE  
POSSIBLE FRIDAY FROM NEAR NEW YORK CITY TO NORTHERN MAINE. WHILE  
THERE ARE EXPECTED TO BE LESS RECORD TEMPERATURES OVER THE NEXT  
FEW DAYS ACROSS THE LOWER 48, WIDESPREAD ABOVE AVERAGE  
TEMPERATURES EXPECTED ACROSS LARGE PORTIONS OF THE CENTRAL TO  
EASTERN U.S.  
 
THE COLD FRONT THAT WILL BRING COOLER TEMPERATURES TO THE CENTRAL  
TO EASTERN U.S. HAS ALSO BEEN RESPONSIBLE FOR ACTIVE THUNDERSTORMS  
OVER THE PAST 24 HOURS OVER CENTRAL/SOUTHERN PLAINS INTO THE LOWER  
MISSOURI AND MIDDLE MISSISSIPPI VALLEYS. SHOWERS ARE EXPECTED TO  
CONTINUE ALONG AND AHEAD OF THIS FRONT AS IT PUSHES EASTWARD, BUT  
AMOUNTS ARE EXPECTED TO BE MUCH LESS THAN WHAT OCCURRED ACROSS THE  
MID SECTION OF THE NATION, BRINGING LITTLE RELIEF TO THE  
WIDESPREAD DROUGHT CONDITIONS FROM THE MISSISSIPPI VALLEY INTO THE  
EAST. THERE HAS BEEN A NARROW AREA OF EARLY SEASON ACCUMULATING  
SNOWS ON THE NORTHWEST SIDE OF AN AREA OF LOW PRESSURE MOVING  
ALONG THE NORTHERN PORTION OF THIS FRONT OVER THE UPPER  
MISSISSIPPI VALLEY. THERE WILL CONTINUE TO BE LIGHT SNOW  
POTENTIAL TONIGHT ACROSS WESTERN PORTIONS OF THE UPPER PENINSULA  
OF MICHIGAN, WHERE AN INCH OR TWO OF ACCUMULATION IS POSSIBLE.  
 
A WET WEATHER PATTERN WILL CONTINUE FOR THE PACIFIC NORTHWEST INTO  
FAR NORTHWEST CALIFORNIA AS THE NEXT STORM SYSTEM PUSHES EASTWARD  
OFF THE NORTHEAST PACIFIC. MODERATE TO HEAVY RAINS LIKELY TO  
DEVELOP ACROSS THE PACIFIC NORTHWEST FROM THE WASHINGTON/OREGON  
CASCADES TO THE WASHINGTON/OREGON COASTS THURSDAY NIGHT AND  
CONTINUE THROUGH FRIDAY, WHILE ALSO SINKING SOUTHWARD INTO FAR  
NORTHERN CALIFORNIA. HEAVY SNOWS ARE POSSIBLE THROUGH THE OREGON  
AND WASHINGTON CASCADES, WITH SNOW TOTALS IN EXCESS OF A FOOT  
POSSIBLE OVER THE NEXT TWO DAYS. THE PACIFIC NORTHWEST HAS BEEN  
ONE OF THE FEW AREAS OF THE LOWER 48 THAT HAS RECEIVED ABOVE  
AVERAGE PRECIPITATION RECENTLY.  
 
THIS SYSTEM AFFECTING THE PACIFIC NORTHWEST THURSDAY NIGHT INTO  
FRIDAY WILL EVENTUALLY SET THE STAGE FOR ANOTHER POTENTIALLY HEAVY  
RAINFALL EVENT FOR PORTIONS OF THE SOUTHERN TO CENTRAL PLAINS AS  
IT PUSHES FARTHER EASTWARD FRIDAY AND SATURDAY. MUCH ABOVE  
AVERAGE MOISTURE VALUES ARE EXPECTED TO PUSH INTO THE SOUTHERN  
PLAINS FRIDAY NIGHT AND EXPAND NORTHEASTWARD INTO THE CENTRAL  
PLAINS ON SATURDAY. THIS WILL SUPPORT AN EXPANDING AREA OF MUCH  
NEEDED RAINFALL FROM FAR EASTERN NEW MEXICO INTO NORTH TEXAS, MUCH  
OF OKLAHOMA, KANSAS AND INTO WESTERN MISSOURI. SIMILAR TO MANY  
AREAS OF THE LOWER 48, THIS REGION IS EXPERIENCING MODERATE TO  
EXTREME DROUGHT CONDITIONS. IN ADDITION TO THE HEAVY RAIN THREAT,  
THERE WILL ALSO BE A THREAT OF SEVERE THUNDERSTORMS ACROSS  
PORTIONS OF THIS AREA.  
 
ORAVEC  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 
 
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