820  
FXUS01 KWBC 170741  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
340 AM EDT TUE OCT 17 2017  
 
VALID 12Z TUE OCT 17 2017 - 12Z THU OCT 19 2017  
   
..LINGERING SHOWERS AND THUNDERSTORMS EXPECTED ACROSS FLORIDA
 
 
   
..LOCALLY HEAVY RAINFALL POSSIBLE ACROSS THE PACIFIC NORTHWEST
 
 
...WELL ABOVE AVERAGE TEMPERATURES EXPECTED TO CONTINUE ACROSS THE  
INTERIOR U.S....  
 
AS THE STRONG COLD FRONT MOVES ACROSS FLORIDA ON TUESDAY, IT IS  
EXPECTED TO SLOW AND STALL NEAR SOUTH FLORIDA BY WEDNESDAY NIGHT.  
EASTERLY WINDS WILL TRANSFER TROPICAL MOISTURE OVER THE STATE; AS  
THE MOISTURE INTERACTS WITH INSTABILITY, SHOWERS AND THUNDERSTORMS  
ARE EXPECTED TO CONTINUE THROUGH MOST OF THE WEEK. MOST OF THE  
HEAVIER RAINFALL TO BE ALONG THE ATLANTIC COAST OF  
FLORIDA--ESPECIALLY IN BETWEEN JACKSONVILLE AND MELBOURNE. SOME  
OF THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY DOWNPOURS  
WHICH COULD LEAD TO LOCALIZED FLOODING.  
 
A STORMY PATTERN WILL CONTINUE THROUGHOUT THE PACIFIC NORTHWEST  
DURING THE SHORT TERM PERIOD AS A SERIES OF FRONTAL SYSTEMS WILL  
KEEP PRECIPITATION IN THE FORECAST. IN ADDITION, SNOWFALL CAN BE  
EXPECTED ACROSS THE HIGHER ELEVATIONS OF THE CASCADES. BY  
THURSDAY, AS PRECIPITATION SPREADS SOUTHWARD IN NORTHERN  
CALIFORNIA--SOME OF THE HIGHER ELEVATIONS IN THIS PORTION OF THE  
STATE COULD SEE LIGHT SNOWFALL ALSO. A MARGINAL RISK OF FLASH  
FLOODING IN THE WESTERN PORTION OF WASHINGTON IS POSSIBLE WITH THE  
LOCALLY HEAVY RAINFALL EXPECTED ALONG A COLD FRONT MOVING OVER THE  
PACIFIC NORTHWEST ON THURSDAY MORNING.  
 
SPRAWLING HIGH PRESSURE ACROSS THE CENTRAL AND EASTERN U.S. WILL  
KEEP CONDITIONS DRY FOR THE REST OF THE WEEK. HIGH TEMPERATURES IN  
THE NORTHERN PLAINS ARE EXPECTED TO BE IN THE MID TO UPPER 70S ON  
TUESDAY WHICH IS 10-15 DEGREES ABOVE NORMAL. THESE DRY AND WARM  
CONDITIONS WILL FUEL CRITICAL FIRE WEATHER CONDITIONS ACROSS THE  
HIGH PLAINS ON TUESDAY. A SWIFT MOVING COLD FRONT WILL BRING  
TEMPERATURES BACK DOWN TO NORMAL ON WEDNESDAY; HOWEVER, BY  
THURSDAY THE HIGH TEMPERATURES WILL REBOUND BACK TO THE UPPER 70S.  
NEW ENGLAND WILL ALSO EXPERIENCE HIGH TEMPERATURES NEAR 70  
DEGREES ON THURSDAY--WHICH IS 10-15 DEGREES ABOVE NORMAL.  
 
REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HPC Page Main Text Page