235  
FXUS65 KBOI 282101  
AFDBOI  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BOISE ID  
301 PM MDT WED JUN 28 2017  
   
SHORT TERM...TONIGHT THROUGH FRIDAY
 
 
DRIER AND MORE STABLE AIR IS SPREADING ACROSS THE FORECAST AREA  
THIS AFTERNOON IN NORTHWEST FLOW. AN ISOLATED SHOWER OR  
THUNDERSTORM REMAINS POSSIBLE ACROSS THE NORTHERN MOST MOUNTAINS  
AND SOUTH OF TWIN FALLS UNTIL AROUND SUNSET. OTHERWISE, DRY  
CONDITIONS EXPECTED TONIGHT. DRY THURSDAY AND FRIDAY AS AN UPPER  
LEVEL TROUGH OVER THE AREA MOVES EAST AND A RIDGE BEGINS BUILDING  
IN. WESTERN PORTIONS OF THE FORECAST AREA WILL WARM SLIGHTLY ON  
THURSDAY WHILE MOST OF THE IDAHO SIDE STAYS NEAR PERSISTENCE.  
TEMPERATURES WILL TREND UP SEVERAL DEGREES THROUGHOUT THE FORECAST  
AREA FRIDAY. PRESSURE GRADIENT WILL RELAX RESULTING IN DECREASING  
WINDS THE NEXT COUPLE OF DAYS.  
   
LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY
 
AN UPPER LEVEL RIDGE  
WILL WEAKEN SLIGHTLY SATURDAY AS A SHORTWAVE PASSES THROUGH THE  
PACIFIC NORTHWEST. EXPECTING A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON AND EVENING, GENERALLY NORTH OF A  
BAKER-COUNCIL-CHALLIS LINE. RIDGING WILL RETURN BRIEFLY TO THE AREA  
SUNDAY BEFORE A SOUTHWEST FLOW SETS UP OVER THE REGION FOR THE  
BEGINNING OF THE NEXT WEEK. TEMPERATURES WILL BE 3-6 DEGREES ABOVE  
NORMAL THROUGH THE JULY 4TH HOLIDAY.  
 

 
   
AVIATION
 
VFR. MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS  
THIS AFTERNOON/EVENING MAINLY OVER THE WALLOWA MOUNTAINS THROUGH THE  
WEST CENTRAL MOUNTAINS, HOWEVER, A FEW THUNDERSTORMS MAY SNEAK  
FURTHER SOUTH OVER THE BOISE MOUNTAINS. SURFACE WINDS NORTHWEST 10-  
20 KTS. GUSTS TO 30 KTS POSSIBLE IN THE SNAKE RIVER PLAIN THIS  
AFTERNOON, AS WELL AS NEAR AND AROUND THUNDERSTORMS. WINDS ALOFT AT  
10K FEET MSL: WEST 15-25 KTS.  
 

 
   
BOI WATCHES/WARNINGS/ADVISORIES
 
 
ID...NONE.  
OR...NONE.  
 

 
 

 
 
WWW.WEATHER.GOV/BOISE  
WWW.FACEBOOK.COM/NWSBOISE  
WWW.TWITTER.COM/NWSBOISE  
 
SHORT TERM...TL  
LONG TERM....AB/AB  
AVIATION.....AB  
 
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