877  
FNUS75 KPIH 171235  
FWSPIH  
 
SPOT FORECAST FOR SOUTH VALLEY PILES...USFS  
NATIONAL WEATHER SERVICE POCATELLO ID  
635 AM MDT FRI OCT 17 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON OCTOBER 17.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT 208-232-9357 IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION  
 
BROADLY SPEAKING...A BREAK BETWEEN STORM SYSTEMS HAS ARRIVED FOR  
TODAY, SATURDAY, AND THE FIRST HALF OF SUNDAY, WITH MOSTLY DRY,  
MOSTLY CLEAR, QUIET WEATHER EXPECTED. DIGGING INTO THE DETAILS,  
HOWEVER, A WEAK/PROGRESSIVE SHORTWAVE TROUGH WILL TRY TO LIGHTLY  
BRUSH ACROSS THE REGION FROM THE NORTH TONIGHT. THE BEST CHANCE OF  
RAIN AND SNOW SHOWERS WILL REMAIN WELL NORTH OF THE BURN, BUT  
THERE IS A 10% CHANCE OF A SHOWER BETWEEN 9 PM THIS EVENING AND 4  
AM EARLY SATURDAY MORNING. IF A SHOWER OCCURS, IT WILL NOT BE A  
WETTING RAIN (OR SNOW). THIS TROUGH WILL ALSO TIGHTEN THE PRESSURE  
GRADIENT AND INCREASE WINDS, WITH THE BREEZIEST PERIOD BETWEEN 6  
PM THIS EVENING AND 4 AM EARLY SATURDAY MORNING. A FEW GUSTS AS  
HIGH AS 20-25 MPH WILL BE POSSIBLE OVER THE BURN, WITH ONE OF OUR  
MODELS HINTING AT 35 MPH GUSTS POSSIBLE (ALTHOUGH THIS WOULD BE  
HIGHLY DEPENDENT ON HOW LOCAL TERRAIN IN ANY GIVEN SPOT AFFECTS  
THE WINDS...PROBABILITY OF A GUST THIS HIGH IS ABOUT 15%).  
OTHERWISE, EXPECT SOME LOW CLOUDS BURNING OFF THIS MORNING,  
HUMIDITIES GRADUALLY DRYING INTO SATURDAY, AND HIGH CONFIDENCE IN  
NO PRECIPITATION OUTSIDE OF TONIGHT. OUR NEXT STORM SYSTEM ARRIVES  
SUNDAY AFTERNOON.  
   
TODAY  
 
SKY/WEATHER.........LOW STRATUS CLOUDS GRADUALLY BURNING OFF THIS  
MORNING, BECOMING MOSTLY SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....46 TO 50 DEGREES.  
MIN HUMIDITY........55 TO 60 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......3900 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 18 MPH.  
RAINFALL AMOUNT.....0.00 INCHES.  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY. A 10 PERCENT CHANCE OF A LIGHT  
RAIN OR SNOW SHOWER OVERNIGHT.  
CWR.................5 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....26 TO 30 DEGREES.  
MAX HUMIDITY........84 TO 89 PERCENT.  
WIND (20 FT)........SOUTHWEST WINDS 6 TO 12 MPH WITH GUSTS TO  
AROUND 22 MPH.  
MIXING HEIGHT.......900 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST TO WEST AROUND 13 MPH.  
RAINFALL AMOUNT.....0.00 INCHES.  
   
SATURDAY  
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....46 TO 50 DEGREES.  
MIN HUMIDITY........39 TO 44 PERCENT.  
WIND (20 FT)........LIGHT AND VARIABLE WINDS 3 TO 6 MPH.  
MIXING HEIGHT.......4500 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.  
RAINFALL AMOUNT.....0.00 INCHES.  
 
 
 
FORECASTER...KSMITH  
REQUESTED BY...THOMSON DANZ  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2523178.3/PIH  
.DELDT 10/17/25  
.FORMATTERVERSION 2.0.0  
.EMAIL RYAN.BAUM@USDA.GOV,THOMSON.DANZ@USDA.GOV  
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