611  
FXUS65 KBOI 280329  
AFDBOI  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BOISE ID  
829 PM MST SAT FEB 27 2021  
   
DISCUSSION
 
SNOW SHOWERS AND GUSTY WINDS HAVE ENDED, AND  
TONIGHT WILL BECOME CLEAR AND COLD. WARMING TREND WILL BEGIN  
SUNDAY AS A PACIFIC UPPER RIDGE BUILDS INLAND. A WEAK WARM  
FRONT WILL SPREAD CLOUDS OVER NORTHERN AREAS SUNDAY WITH A  
SLIGHT CHANCE OF LIGHT SNOW IB THE NORTHERN MOUNTAINS. THEN  
CLEARING AND NOT SO COLD SUNDAY NIGHT, AND MOSTLY SUNNY AND  
WARMER MONDAY WITH LIGHT WINDS. CURRENT FORECAST LOOKS GOOD.  
NO UPDATES.  
 

 
   
AVIATION
 
VFR AND MOUNTAINS OBSCURED. ISOLATED LIGHT SNOW  
SHOWERS OVER THE BLUE MOUNTAINS AND WEST CENTRAL MOUNTAINS  
OVERNIGHT THROUGH THE MORNING. SURFACE WINDS: GENERALLY 10 KTS  
OR LESS, EXCEPT SOUTHWEST 10-15 KTS ACROSS THE MAGIC VALLEY.  
WINDS ALOFT AT 10K FT MSL: NORTHWEST 10-25 KTS.  
 

 
   
PREV DISCUSSION
 
 
SHORT TERM...TONIGHT THROUGH MONDAY NIGHT...SHOWERS WILL  
DISSIPATE QUICKLY THIS EVENING OVER HIGHER TERRAIN AS THE  
ATMOSPHERE STABILIZES. WINDS WILL DIMINISH AS WELL WITH ONLY  
PORTIONS OF S-CENTRAL IDAHO KEEPING A NOTICEABLE WIND OVERNIGHT.  
CLEAR SKIES AND A DRYING AIR MASS WILL ALLOW FOR GOOD RADIATIONAL  
COOLING, AND LOW TEMPERATURES SUNDAY MORNING WILL BE WELL BELOW  
NORMAL. AN UPPER RIDGE WILL MOVE INTO THE AREA SUNDAY AND THE  
ACCOMPANYING WARM FRONT WILL INCREASE CLOUDS ACROSS THE REGION  
AND SUPPORT A SLIGHT CHANCE OF SNOW SHOWERS IN THE MOUNTAINS  
OF NORTHERN BAKER AND ADAMS COUNTY. DRY CONDITIONS WILL PREVAIL  
THROUGH MONDAY NIGHT AS THE UPPER RIDGE AXIS SHIFTS EASTWARD.  
TEMPERATURES WILL WARM TO AROUND NORMAL ON MONDAY WITH SOUTHWEST  
FLOW ALOFT AND GUSTY EASTERLY SURFACE WINDS ACROSS OPEN TERRAIN.  
 
LONG TERM...TUESDAY THROUGH SATURDAY...DRY CONDITIONS THROUGH  
MUCH OF OUR EXTENDED PERIOD AS A RIDGE OF HIGH PRESSURE DOMINATES  
THE AREA. TEMPERATURES WILL CREEP UP TO NORMAL THEN CLIMB ABOVE  
NORMAL BY THE END OF THE WEEK. AS WE HEAD INTO THE WEEKEND, MODELS  
ARE STILL IN-LINE WITH BRINGING ANOTHER UPPER LEVEL TROUGH INTO  
THE AREA WHICH WILL BRING PERIODS OF SHOWER ACTIVITY BACK INTO THE  
FORECAST.  
 

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

 
 

 
 
WWW.WEATHER.GOV/BOISE  
WWW.FACEBOOK.COM/NWSBOISE  
WWW.TWITTER.COM/NWSBOISE  
 
DISCUSSION...LC  
AVIATION.....AL  
PREV SHORT TERM...DG  
PREV LONG TERM....JC  
 
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