248  
FXUS01 KWBC 291946  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
244 PM EST SUN DEC 29 2024  
 
VALID 00Z MON DEC 30 2024 - 00Z WED JAN 01 2025  
 
... FLOODING POTENTIAL FOR THE ATMOSPHERIC RIVER ACROSS THE  
PACIFIC NORTHWEST AND SEVERE WEATHER/FLOODING POTENTIAL ACROSS THE  
SOUTHEAST SHOULD WIND DOWN BY SUNDAY...  
 
...MUCH ABOVE AVERAGE TEMPERATURES CONTINUE ACROSS THE CENTRAL AND  
EASTERN U.S....  
 
...CRITICAL FIRE WEATHER EXPECTED FOR PORTIONS OF THE SOUTHERN  
HIGH PLAINS ON MONDAY...  
 
THE RISK FOR FLASH FLOODING WILL DWINDLE DOWN AFTER TODAY AND MUCH  
QUIETER WEATHER SHOULD BE EXPECTED ACROSS THE PACIFIC NORTHWEST  
AND SOUTHEAST. AREAS IN THE SOUTHERN U.S. SHOULD BE MOSTLY DRY FOR  
MONDAY AND TUESDAY AS HIGH PRESSURE DOMINATES THE WEATHER PATTERN  
AND THE COLD FRONT CONTINUES TO SLIDE SOUTHEASTWARD. FLORIDA MAY  
SEE THE CHANCE FOR RAIN LINGER INTO MONDAY AND TUESDAY AS THE  
FRONT IS FORECAST TO STALL OVER THE REGION AND KEEP LOW LEVEL  
MOISTURE PRESENT. THE PACIFIC NORTHWEST WILL SEE THE FRONTAL  
BOUNDARY SWEEP THROUGH THE AREA AND THE COOLER, STABLE AIR MASS  
SHOULD PROHIBIT ANY DEEP MOISTURE PLUMES, BUT SHOWERS ARE STILL  
LIKELY OFF THE PACIFIC. IT WILL BE RATHER COOL WITH HIGHS IN THE  
40S AND 50S.  
 
THE NEXT BIG WEATHER STORYLINE IS THE VERY WARM TEMPERATURES  
ACROSS MOST OF THE SOUTHERN AND EASTERN PORTIONS OF THE COUNTRY.  
RIDGING OVER THE SOUTHWEST U.S. WILL KEEP MOST OF THE SOUTHWEST  
TOASTY FOR LATE DECEMBER STANDARDS WITH HIGHS IN THE MIDDLE 70S  
ACROSS CALIFORNIA AND ARIZONA AND HIGHS NEARING OR BREAKING 90  
INTO CENTRAL TEXAS. THE SOUTHEAST WILL SEE HIGHS IN THE 60S AND  
70S DESPITE A WEAK COLD FRONT PASSAGE. TEMPERATURES WILL BEGIN TO  
COOLDOWN BY THE MIDDLE OF THE WEEK.  
 
THE STORM PREDICTION CENTER HAS PARTS OF THE SOUTHWESTERN PLAINS  
UNDER A CRITICAL FIRE WEATHER OUTLOOK. CONDITIONS WILL BE  
FAVORABLE FOR FIRES AS A DEVELOPING LOW PRESSURE AND FRONTAL  
SYSTEM PROVIDE STRONG,GUSTY WINDS ATOP DRY SOILS. LISTEN TO LOCAL  
OFFICIALS ON FIRE WEATHER SAFETY. MOREOVER, PARTS OF THE  
TRANSVERSE MOUNTAINS IN CALIFORNIA ARE UNDER AN ELEVATED FIRE  
WEATHER RISK WITH HIGH WINDS AND LOW RELATIVE HUMIDITY.  
 
ELSEWHERE ACROSS THE NATION, A LOW PRESSURE SYSTEM WILL CONTINUE  
TO TRACK NORTHWARD ACROSS THE OHIO VALLEY ON MONDAY AND PROVIDE  
SHOWERS AND STORMS ALONG THE COLD FRONT BEFORE EXITING THE COAST  
TUESDAY. A COLD FRONT WILL BE MOVING THOUGH THE ROCKIES AND  
INTERMOUNTAIN WEST ON MONDAY AND BRING THE CHANCE FOR MODERATE  
SNOW ACCUMULATIONS AND GUSTY WINDS IN AREAS OF TERRAIN. COOLER AIR  
WILL FOLLOW BEHIND THE FRONT WITH HIGHS IN THE 30S AND 20S. THE  
FRONT WILL THEN BRING SOME RAIN AND SNOW CHANCES TO THE CENTRAL  
U.S. ON TUESDAY. COLD AIR WILL START TO SEEP INTO THE NORTHERN  
PLAINS BY THE MIDDLE OF THE WEEK AS ANOTHER COLD FRONT BEGINS ITS  
MARCH SOUTHWARD.  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 

 
 
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