206  
FXUS65 KRIW 151912  
AFDRIW  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE RIVERTON WY  
112 PM MDT MON OCT 15 2018  
   
SHORT TERM
 
THIS EVENING THROUGH TUESDAY  
 
A QUIET PERIOD IN THE FORECAST TONIGHT AND TUESDAY. CLOUDS WILL  
CONTINUE TO CLEAR THIS AFTERNOON, AS THEY PROGRESS SOUTHWARD.  
CONDITIONS WILL BE DRY AND NOT AS COLD TONIGHT AND TUESDAY.  
DEPENDING ON HOW WARM IT GETS THIS AFTERNOON, PATCHY FOG COULD BE  
POSSIBLE AGAIN TUESDAY MORNING (ESPECIALLY IN LOWER LYING AREAS).  
WINDS WILL BE LIGHT TUESDAY, WITH GUSTY NORTHEAST WINDS OVER  
EASTERN PORTIONS OF SWEETWATER COUNTY DURING THE AFTERNOON.  
   
LONG TERM
 
TUESDAY NIGHT THROUGH MONDAY NIGHT  
 
ON TUESDAY NIGHT THE CUTOFF LOW IN THE SOUTHWEST US WILL BEGIN TO  
CREEP UP TOWARDS SOUTHWEST WY. BY WEDNESDAY THIS LOW WILL BE IN  
THE UTAH/COLORADO AREA BUT WILL NOT BRING MUCH ACTIVITY TO  
SOUTHERNWY, OTHER THAN SOME MID/HIGH CLOUDS AND POSSIBLY SOME  
VERY ISOLATED SHOWERS TO SOUTHERN SWEETWATER COUNTY. BY THURSDAY  
THE LOW WASHES OUT AND IS ABSORBED INTO THE LONGWAVE TROUGH.  
MODELS ARE STILL INDICATING A CLIPPER SYSTEM ON FRIDAY THOUGH THE  
GFS IS NOW LEANING TOWARDS THE OTHER MODELS AND SHIFTING IT MORE  
TO THE EAST. H7 TEMPS DO INDICATE A SLIGHT DIP ACROSS THE AREA BUT  
QUICKLY REBOUNDS OVER THE WEEKEND. UPPER LEVEL HIGH PRESSURE IS  
THEN EXPECTED TO BUILD INTO THE AREA WITH TEMPERATURES EXPECTED TO  
WARM TO NEAR 5F-10F ABOVE NORMAL ON SUNDAY AND MONDAY.  
 

 
   
AVIATION
 
FOR THE 00Z TAFS THROUGH 00Z WEDNESDAY  
 
VFR CONDITIONS WILL OCCUR THROUGH THE PERIOD. ISOLATED SNOW  
SHOWERS WILL REMAIN POSSIBLE AT TIMES THIS EVENING OVER THE  
NORTHERN MOUNTAINS. LOCAL MVFR/IFR CONDITIONS COULD BE POSSIBLE  
AGAIN TUE, DUE TO PATCHY AM FOG.  
 

 
   
FIRE WEATHER
 
 
A QUIET PERIOD IN THE FORECAST FOR THE NEXT FEW DAYS. CONDITIONS  
WILL BE DRY AND NOT AS COLD TONIGHT AND TUESDAY. WINDS WILL BE  
LIGHT TUESDAY, WITH GUSTY NORTHEAST WINDS OVER PORTIONS OF  
ZONE 279 DURING THE AFTERNOON.  
 

 
   
RIW WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  

 
 

 
 
SHORT TERM...LAVOIE  
LONG TERM...HULME  
AVIATION...LAVOIE  
FIRE WEATHER...LAVOIE  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab WY Page Main Text Page