127  
FXUS65 KBOI 250240  
AFDBOI  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BOISE ID  
840 PM MDT SUN MAY 24 2020  
   
DISCUSSION
 
A FEW HIGH CLOUDS ARE MOVING SOUTHEAST ACROSS THE  
AREA, AND A FEW CUMULUS ARE STILL OVER THE MOUNTAINS, BUT OVERALL  
IT'S BEEN A SUNNY EVENING SO FAR. CLOUDS ARE EXPECTED TO INCREASE  
SLIGHTLY OVERNIGHT, BUT NOT ENOUGH TO BRING ANY PRECIPITATION.  
FORECAST IS ON TRACK AND NO UPDATES ARE PLANNED AT THIS TIME.  
 

 
   
AVIATION
 
VFR. SCATTERED HIGH CLOUDS THIS EVENING. SURFACE  
WINDS: LIGHT WESTERLY WINDS. WINDS ALOFT NEAR 10K FEET MSL:  
NORTHWEST 10-20 KT.  
 

 
   
PREV DISCUSSION
 
 
SHORT TERM...TONIGHT THROUGH TUESDAY NIGHT...A WARMING TREND WILL  
RAISE TEMPERATURES TO A FEW DEGREES ABOVE NORMAL ON MONDAY AND  
5-10 DEGREES ABOVE NORMAL ON TUESDAY. AN UPPER LEVEL HIGH PRESSURE  
RIDGE WILL MOVE OVER THE INTERMOUNTAIN REGION ON MONDAY. THE NORTH  
PORTION OF THE RIDGE WILL WEAKEN AS A PACIFIC WEATHER SYSTEM  
MOVES INLAND OVER WASHINGTON, NORTHERN IDAHO, AND BRITISH  
COLUMBIA, ALLOWING WESTERLY FLOW TO BRING ENOUGH MOISTURE FOR  
SHOWERS OVER THE WEST CENTRAL IDAHO MOUNTAINS AND BAKER COUNTY  
OREGON MONDAY AFTERNOON THROUGH TUESDAY.  
 
LONG TERM...WEDNESDAY THROUGH SUNDAY...CONTINUED WARMING AS  
UPPER RIDGE AMPLIFIES OVER THE WESTERN U.S. HOTTEST DAYS NOW  
LOOK LIKE FRIDAY AND SATURDAY WITH TEMPS APPROACHING 100F IN  
SOUTHWEST IDAHO AND 80S AND 90S ELSEWHERE. MODELS DEVELOP A  
CHANCE OF THUNDERSTORMS IN EASTERN OREGON SATURDAY AFTERNOON  
AND EVENING AS A PACIFIC UPPER TROUGH PASSES BY OFF THE  
NORTHWEST COAST. SUNDAY LOOKS DRIER AND COOLER AS ANOTHER  
PACIFIC TROUGH AT LOWER LATITUDES MOVES TOWARD THE CALIFORNIA  
COAST.  
 

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

 
 

 
 
WWW.WEATHER.GOV/BOISE  
WWW.FACEBOOK.COM/NWSBOISE  
WWW.TWITTER.COM/NWSBOISE  
 
DISCUSSION...SP  
AVIATION.....JS  
PREV SHORT TERM...JT  
PREV LONG TERM....LC  
 
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