025  
FXUS01 KWBC 221959  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
358 PM EDT MON OCT 22 2018  
 
VALID 00Z TUE OCT 23 2018 - 00Z THU OCT 25 2018  
 
...LOCALLY HEAVY RAIN AND STORMS ARE POSSIBLE FOR THE FOUR  
CORNERS, SOUTHWEST U.S., AND INTO TEXAS...  
 
...SNOW POSSIBLE IN THE GREAT LAKES REGION AND INTO NORTHERN NEW  
ENGLAND...  
 
A COMBINATION OF WEATHER FEATURES WILL CONTINUE TO CREATE ACTIVE  
WEATHER FOR PARTS OF THE WESTERN U.S. INTO TEXAS OVER THE NEXT  
COUPLE OF DAYS. FIRST, AN UPPER-LEVEL TROUGH IS FORECAST TO PUSH  
THROUGH THE FOUR CORNERS AND SOUTHWEST, AND SUFFICIENT MOISTURE  
WILL LEAD TO SHOWERS AND SCATTERED THUNDERSTORMS IN THOSE AREAS.  
MOISTURE COULD BE TIED TO HURRICANE WILLA IN THE EASTERN PACIFIC.  
THE FOCUS OF THIS RAIN WILL SHIFT FARTHER EAST INTO WESTERN TEXAS  
BY TUESDAY AND WEDNESDAY. MARGINAL RISKS OF BOTH FLASH FLOODING  
AND SEVERE WEATHER ARE IN PLACE FOR SOME AREAS (SEE THE STORM  
PREDICTION CENTER FOR INFORMATION ON THE SEVERE WEATHER THREAT).  
ANOTHER WEATHER MAKER WILL BE A SURFACE LOW NEAR THE SOUTHERN TIP  
OF TEXAS AND A STATIONARY FRONT OFF THE GULF COAST. RAIN AND  
THUNDERSTORMS WILL CONTINUE ALONG THE WESTERN AND CENTRAL GULF  
COAST, AND MARGINAL RISKS OF FLASH FLOODING ARE IN EFFECT.  
SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE IN FLORIDA AS  
WELL DUE TO THE STATIONARY FRONT. ALL OF THIS WILL LEAD TO BELOW  
NORMAL TEMPERATURES.--THE SOUTHERN HIGH PLAINS IN PARTICULAR WILL  
HAVE HIGH TEMPERATURES 15 TO 25 DEGREES BELOW AVERAGE.  
 
A SURFACE LOW PRESSURE SYSTEM IS EXPECTED TO CONTINUE MOVING  
EASTWARD THROUGH THE GREAT LAKES REGION AND INTO NEW ENGLAND  
THROUGH WEDNESDAY, AND SOME GENERALLY LIGHT PRECIPITATION IS  
LIKELY. NEAR THE GREAT LAKES, SNOW SHOWERS ARE POSSIBLE, BUT  
ACCUMULATING SNOW OVER AN INCH WILL LIKELY BE CONFINED TO NORTHERN  
NEW ENGLAND. 6 TO 10 INCHES OF SNOW IS FORECAST FOR NORTHERN  
MAINE. THE COLD FRONT ASSOCIATED WITH THIS LOW WILL SWEEP THROUGH  
THE OHIO VALLEY AND MID-ATLANTIC, BRINGING ANOTHER SHOT OF COLD  
AIR AND BELOW NORMAL TEMPERATURES TO NORTHERN AND CENTRAL PARTS OF  
THE U.S. ON THE OTHER HAND, THE WEST WILL SEE ABOVE NORMAL  
TEMPERATURES THROUGH MIDWEEK.  
 
TATE  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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