126  
FXUS65 KGJT 242246  
AFDGJT  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE GRAND JUNCTION CO  
446 PM MDT SAT JUN 24 2017  
   
SHORT TERM
 
(TONIGHT THROUGH SUNDAY NIGHT)  
ISSUED AT 326 PM MDT SAT JUN 24 2017  
 
HIGH PRESSURE WILL AMPLIFY OVER UTAH AND COLORADO SUNDAY AND MONDAY.  
THIS WILL ALLOW TEMPERATURES TO CREEP BACK UP...WITH EASTERN UTAH  
POSSIBLY REACHING THE TRIPLE DIGITS AGAIN. ADDED AREAS OF SMOKE BACK  
INTO THE FORECAST STARTING TONIGHT AS SMOKE FROM THE ACTIVELY  
BURNING BRIAN HEAD FIRE IS EXPECTED TO REACH THE FOUR CORNERS  
REGION.  
   
LONG TERM
 
(MONDAY THROUGH SATURDAY)  
ISSUED AT 326 PM MDT SAT JUN 24 2017  
 
A WEAK TROUGH PASSING THROUGH EASTERN UTAH AND WESTERN COLORADO ON  
TUESDAY WILL ALLOW SOUTHWEST WINDS TO INCREASE. A SLIVER OF  
INCREASED MOISTURE MAY ALLOW AFTERNOON SHOWERS OR THUNDERSTORMS TO  
DEVELOP OVER THE HIGHEST TERRAIN TUESDAY AND WEDNESDAY, BUT THESE  
ARE EXPECTED TO BE ISOLATED. LOW WINDS AND LOW RELATIVE HUMIDITY MAY  
BRING MARGINAL CRITICAL FIRE CONDITIONS TO THE REGION THESE DAYS  
(TUESDAY AND WEDNESDAY) AS WELL. COOLER AIR WILL MOVE IN ON THURSDAY  
BEHIND THIS TROUGH, WHICH WILL ALLOW TEMPERATURES TO BE NEAR NORMAL  
FOR THIS TIME OF YEAR. PAST THURSDAY, MODELS DIVERGE BUT MODEL RUNS  
THE PAST FEW DAYS HAVE SUPPORTED HIGH PRESSURE AMPLIFYING BACK OVER  
THE SOUTHWESTERN US. EC IS THROWING A WRENCH IN THE SOLUTIONS WITH A  
TROUGHIER PATTERN SETTING UP. GOING WITH CONSISTENCY UNTIL WE HAVE  
GOOD REASON TO BELIEVE OTHERWISE.  
 

 
   
AVIATION
 
(FOR THE 00Z TAFS THROUGH 00Z SUNDAY EVENING)  
ISSUED AT 446 PM MDT SAT JUN 24 2017  
 
EXPECT LIGHT TERRAIN DRIVEN WINDS AND CLEAR SKIES OVER EASTERN  
UTAH AND WESTERN COLORADO TONIGHT AND SUNDAY MORNING. CUMULUS WILL  
BUILD OVER THE EASTERN UINTA MOUNTAINS AND ALONG THE CONTINENTAL  
DIVIDE SUNDAY AFTERNOON, WITH ISOLATED TO SCATTERED SHOWERS AND  
THUNDERSTORMS POSSIBLE OVER THE SAN JUAN MOUNTAINS. THIS ACTIVITY  
MAY RESULT IN GUSTY OUTFLOW WINDS AT KDRO, BUT OTHERWISE IS  
UNLIKELY TO IMPACT TAF SITES. VFR CONDITIONS AND CIGS ABOVE 15000  
FEET MSL WILL PREVAIL FOR THE NEXT 24 HOURS.  
 

 
   
FIRE WEATHER
 
 
ISSUED AT 326 PM MDT SAT JUN 24 2017  
 
A FAIRLY DRY WEATHER SYSTEM MOVING INTO THE EASTERN GREAT BASIN ON  
TUESDAY WILL ALLOW WINDS TO INCREASE AND RELATIVE HUMIDITY TO  
DECREASE TO NEAR CRITICAL FIRE WEATHER CONDITIONS BOTH TUESDAY AND  
WEDNESDAY. AT THIS TIME, THESE CONDITIONS ARE NOT EXPECTED TO BE  
WIDESPREAD, BUT THE DEVELOPMENT OF VIRGA MAY HELP TO DRIVE WINDS  
>25 MPH DOWN TO THE SURFACE. STAY TUNED TO SEE IF THESE CONDITIONS  
ARE EXPECTED TO BECOME CRITICAL.  
 

 
   
GJT WATCHES/WARNINGS/ADVISORIES
 
 
CO...NONE.  
UT...NONE.  
 

 
 

 
 
SHORT TERM...JAM  
LONG TERM...JAM  
AVIATION...NL  
FIRE WEATHER...JAM  
 
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