279  
FNUS75 KTFX 101920  
FWSTFX  
 
SPOT FORECAST FOR EITTEN RIDGE RX...USFS  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
120 PM MDT FRI MAY 10 2024  
 
FORECAST IS BASED ON IGNITION TIME OF 0800 MDT ON MAY 11.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
AN UPPER LEVEL RIDGE WILL BE IN PLACE ACROSS THE REGION THIS  
WEEKEND, ALLOWING FOR LARGELY BENIGN CONDITIONS. A BARELY  
MENTIONABLE CHANCE FOR A SHOWER WILL BE AROUND SATURDAY AFTERNOON  
AND EVENING, WITH A SLIGHTLY BETTER CHANCE FOR A SHOWER OR  
THUNDERSTORM AROUND SUNDAY AFTERNOON.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). SLIGHT CHANCE OF  
SHOWERS IN THE AFTERNOON.  
CWR.................LESS THAN 5 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....68-73.  
MIN HUMIDITY........21-26 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 10 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). SLIGHT CHANCE OF  
SHOWERS OVERNIGHT.  
CWR.................LESS THAN 5 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....43-48.  
MAX HUMIDITY........61-66 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH SHIFTING TO THE  
SOUTHWEST OVERNIGHT.  
   
SUNDAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT) THEN BECOMING PARTLY  
SUNNY (50-60 PERCENT). CHANCE OF RAIN SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON.  
CWR.................10 PERCENT.  
LAL.................2.  
MAX TEMPERATURE.....69-74.  
MIN HUMIDITY........27-32 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 10 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
 

 
FORECASTER...MCDOWELL  
REQUESTED BY...KYLE MARQUARDT  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2413702.0/TFX  
.DELDT 05/10/24  
.FORMATTERVERSION 2.0.0  
.EMAIL KYLE.MARQUARDT@USDA.GOV, TFX.OPS@NOAA.GOV  
 
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