054  
FXUS65 KPIH 232222  
AFDPIH  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE POCATELLO ID  
422 PM MDT WED SEP 23 2026  
   
KEY MESSAGES  
 
- WARMER, ABOVE NORMAL TEMPERATURES THROUGH FRIDAY.  
 
- BREEZY TO WINDY FRIDAY AFTERNOON FOLLOWED BY COOLER WEATHER  
THIS WEEKEND.  
 
- SLIGHT CHANCES FOR SHOWERS AND STORMS SUNDAY AND MONDAY.  
 
 
   
DISCUSSION  
 
ISSUED AT 1258 PM MDT WED SEP 23 2026  
 
A DRY AND WARMING PATTERN WILL PERSIST THROUGH FRIDAY AS HIGH  
PRESSURE BUILDS OVER THE REGION. EXPECT DAYTIME TEMPERATURES TO  
WARM INTO THE UPPER 70S TO LOW 80S ACROSS LOW ELEVATIONS FRIDAY.  
 
AN UPPER-LEVEL TROUGH WILL WORK EASTWARD WITH THE ACCOMPANYING COLD  
FRONT BRINGING BREEZY TO WINDY CONDITIONS ON FRIDAY. THE STRONGEST  
WINDS WILL BE ACROSS THE CENTRAL MOUNTAINS, WHERE GUSTS WILL RANGE  
30 TO 40 MPH, WHILE GUSTS WILL LARGELY REMAIN BELOW 30 MPH  
ELSEWHERE. PRECIPITATION WILL ALSO REMAIN FURTHER NORTH OUTSIDE OF  
OUR CWA. TEMPERATURES WILL RUN MUCH COOLER BEHIND THE FRONT, WITH  
HIGHS RETURNING TO THE 60S AND LOW 70S DURING THE WEEKEND.  
 
THE NEXT PACIFIC TROUGH WILL MOVE ONSHORE LATE SUNDAY, BRINGING  
SLIGHT CHANCES FOR SHOWERS AND THUNDERSTORMS TO SOUTHEAST IDAHO  
THROUGH AT LEAST MONDAY. EXPECT A 5 TO 10 DEGREE COOLDOWN BETWEEN  
SUNDAY AND MONDAY, SENDING DAYTIME HIGHS DOWN INTO THE 50S AND 60S.  
ENSEMBLES SUGGEST WEAK HIGH PRESSURE BUILDING IN FROM THE WEST  
BEGINNING TUESDAY WITH ANOTHER WAVE TO OUR NORTH SUPPRESSING THE  
RIDGE LATER TUESDAY INTO WEDNESDAY. THAT SAID, THE NATIONAL BLEND OF  
MODELS MAINTAINS VERY SLIGHT CHANCES OF PRECIPITATION ACROSS  
SOUTHEAST IDAHO FOR THE FIRST HALF OF NEXT WEEK.  
 
 
   
AVIATION /00Z TAFS THROUGH 00Z FRIDAY/  
 
ISSUED AT 421 PM MDT WED SEP 23 2026  
 
ISOLATED SHOWERS AREN'T AFFECTING TAF SITES AND SHOULD BE  
DISSIPATING WITHIN A COUPLE HOURS. EXPECT LIGHT WINDS WITH VFR  
CONDITIONS THROUGH THURSDAY. POTENTIAL FOR FOG DEVELOPMENT LOOKS  
LIMITED TONIGHT.  
 
 
   
FIRE WEATHER  
 
ISSUED AT 1258 PM MDT WED SEP 23 2026  
 
A DRY AND WARMING PATTERN WILL PERSIST THROUGH FRIDAY AS HIGH  
PRESSURE BUILDS OVER THE REGION. COLD FRONT ON FRIDAY WILL BRING  
BREEZY TO WINDY CONDITIONS AREAWIDE AND COOLER WEEKEND TEMPERATURES.  
MINIMUM HUMIDITY WILL BE AT ITS LOWEST ON FRIDAY BUT STILL LARGELY  
REMAIN ABOVE 20 PERCENT. CONDITIONS WILL REMAIN DRY UNTIL AT LEAST  
SUNDAY/MONDAY WHEN THE NEXT PACIFIC TROUGH MOVES ONSHORE AND BRINGS  
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TO SOUTHEAST IDAHO.  
ALSO EXPECT A 5 TO 10 DEGREE COOLDOWN BETWEEN SUNDAY AND MONDAY,  
SENDING DAYTIME HIGHS DOWN INTO THE 50S AND 60S DURING THE FIRST  
PART OF NEXT WEEK.  
 
 
   
PIH WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
 
DISCUSSION...CROPP  
AVIATION...13  
FIRE WEATHER...CROPP  
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