488  
FXUS01 KWBC 291952  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
351 PM EDT MON OCT 29 2018  
 
VALID 00Z TUE OCT 30 2018 - 00Z THU NOV 01 2018  
   
..HEAVY SNOWS FOR PORTIONS OF THE CENTRAL ROCKIES ON TUESDAY
 
 
...RAIN AND STORMS DEVELOPING AND ADVANCING EAST FROM THE GREAT  
LAKES TO THE SOUTHERN PLAINS ON TUESDAY...  
 
...WEDNESDAY EVENING WET WEATHER THREAT EXTENDING FROM THE  
NORTHEAST TO THE GULF COAST AND ACROSS THE NORTHWEST TO THE  
NORTHERN ROCKIES...  
 
A FRONTAL SYSTEM CURRENTLY EXTENDING FROM THE NORTHERN PLAINS BACK  
INTO THE GREAT BASIN WILL CONTINUE TO PUSH FURTHER SOUTH AND EAST  
OVER THE NEXT FEW DAYS, BRINGING RAIN AND STORMS TO PORTIONS OF  
THE MIDWEST AND CENTRAL U.S., AS WELL AS HEAVY SNOWS TO PARTS OF  
THE CENTRAL ROCKIES.  
 
AS THE FRONT MOVES FURTHER SOUTH AND EAST ON TUESDAY, SHOWERS AND  
THUNDERSTORMS ARE EXPECTED TO DEVELOP FROM THE GREAT LAKES BACK  
INTO THE SOUTHERN PLAINS. MEANWHILE, HEAVY SNOWS WILL BEGIN TO  
DEVELOP ACROSS PORTIONS OF THE COLORADO INTO THE NORTH-CENTRAL NEW  
MEXICO MOUNTAINS. WINTER WEATHER ADVISORIES AND WINTER STORM  
WATCHES ARE CURRENTLY IN EFFECT FOR PORTIONS OF THE REGION.  
 
SHOWERS AND THUNDERSTORMS WILL CONTINUE TO ADVANCE EAST INTO THE  
LOWER MISSISSIPPI, TENNESSEE AND OHIO VALLEYS ON WEDNESDAY. SOME  
OF THESE STORMS MAY BECOME STRONG TO SEVERE, ESPECIALLY DURING THE  
AFTERNOON AND EVENING HOURS ACROSS THE SOUTHERN PLAINS AND LOWER  
MISSISSIPPI VALLEY, WITH THE STORM PREDICTION CENTER HIGHLIGHTING  
THE THREAT WITH A SLIGHT RISK FOR SEVERE WEATHER. THE THREAT FOR  
HEAVY TO EXCESSIVE RAINFALL AMOUNTS IS ALSO EXPECTED TO INCREASE  
DURING THIS PERIOD, WITH THE WEATHER PREDICTION CENTER INDICATING  
A SLIGHT RISK FOR EXCESSIVE RAINFALL EXTENDING FROM PORTIONS OF  
NORTHEAST TEXAS AND THE LOWER MISSISSIPPI INTO THE OHIO VALLEYS.  
BY WEDNESDAY EVENING, THE THREAT FOR RAIN AND STORMS WILL EXTEND  
FROM THE NORTHEAST BACK TO THE WESTERN AND CENTRAL GULF COAST --  
WHICH MAY POSSIBLY HAMPER ANY OUTDOOR ACTIVITIES.  
 
WARM AIR SURGING NORTH AHEAD OF THE FRONT WILL SUPPORT  
ABOVE-NORMAL TEMPERATURES FROM THE SOUTHERN PLAINS INTO THE  
MIDWEST ON TUESDAY, BEFORE SHIFTING FURTHER EAST INTO THE  
MID-ATLANTIC AND PORTIONS OF THE NORTHEAST ON WEDNESDAY. MUCH  
COLDER AIR BEHIND THE FRONT WILL RESULT IN BELOW-NORMAL  
TEMPERATURES SPILLING SOUTHEAST FROM THE GREAT BASIN AND CENTRAL  
ROCKIES INTO THE SOUTHERN ROCKIES AND HIGH PLAINS ON WEDNESDAY.  
 
ACROSS THE NORTHWEST INTO THE NORTHERN ROCKIES, SCATTERED  
PRECIPITATION WILL CONTINUE INTO TUESDAY BEFORE MORE ORGANIZED  
PRECIPITATION RETURNS TO THE REGION ON WEDNESDAY AHEAD OF A WARM  
FRONT. THE THREAT FOR LOW ELEVATION RAINS AND MOUNTAINS SNOWS IS  
EXPECTED TO CONTINUE ACROSS THE NORTHWEST AND NORTHERN ROCKIES,  
WHILE SPILLING EAST INTO THE HIGH PLAINS WEDNESDAY EVENING.  
 
ACROSS MUCH OF CALIFORNIA, DRY WEATHER CONTINUES, WITH GUSTY WINDS  
SUPPORTING ELEVATED FIRE WEATHER CONDITIONS ACROSS A WIDE SWATH OF  
THE STATE ON TUESDAY.  
 
PEREIRA  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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