268  
FXUS65 KPIH 270828  
AFDPIH  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE POCATELLO ID  
228 AM MDT SAT MAY 27 2017  
   
SHORT TERM
 
TODAY THROUGH MONDAY NIGHT. UPPER LEVEL LOW HAS  
CONTINUED ITS EASTERN MOVEMENT AND WILL LEAVE MILD INSTABILITY IN  
THE CENTRAL IDAHO MOUNTAINS AND, PRIMARILY, THE ID-WY BORDER  
REGION. HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE GREAT BASIN  
AND THE SLIGHT CHANCE OF SHOWERS WITH AFTERNOON AND EVENING  
THUNDERSTORMS WILL CONTINUE FOR THE CENTRAL IDAHO MOUNTAINS AND  
THE ID-WY BORDER. THE MAINLY CLEAR SKIES WILL ALLOW STRONG  
WARMING, UP 8 TO 12 DEG F TODAY COMPARED TO FRI AND ANOTHER 8 TO  
12 DEG F FROM TODAY TO SUN. WARMING SLOWS FOR MEMORIAL DAY, WITH  
TEMPERATURES APPROACHING THE 80 DEG F MARK FOR HIGHS IN THE SNAKE  
RIVER PLAIN AND EASTERN MAGIC VALLEY. MESSICK  
   
LONG TERM
 
TUESDAY THROUGH SATURDAY. THE DOMINANT RIDGE OVER THE  
WEST GRADUALLY IS PUSHED OFF TO THE EAST BY AN UPPER TROF MOVING  
INTO THE WEST ON WED. AFTERNOON/EVENING TSTMS BECOME A LITTLE MORE  
WIDESPREAD THU...BUT MAINLY OVER THE MTNS. BY THE WEEKEND...THE  
MODELS FALL INTO DISAGREEMENT. THE GFS MAINTAINS THE UPPER TROF  
PATTERN OVER THE PAC NW...AND THE MTN PRECP. THE ECMWF BUILDS A  
BROAD RIDGE OVER THE WEST...AND DRY. WILL STRIKE A BLEND AND KEEP  
LOW CHANCE PRECIP OVER THE MTNS FRI AND SAT. HEDGES  
 

 
   
AVIATION
 
UPPER RIDGING WILL BUILD INTO THE WEST TODAY BRINGING  
VFR CONDITIONS THRU TONIGHT. PATCHY FOG IS STILL POSSIBLE THIS  
MORNING IN THE SNAKE RIVER PLAIN DUE TO WET GROUND AND CLEAR SKIES.  
LOW CIGS ALSO EXPECTED TO PERSIST IN THE EASTERN HIGHLANDS UNTIL  
SUNRISE. HEDGES  
 

 
   
PIH WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  

 
 

 
 
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