374  
FNUS75 KRIW 291824  
FWSRIW  
 
SPOT FORECAST FOR VIP VISIT...EM GALLATIN  
NATIONAL WEATHER SERVICE RIVERTON WY  
1224 PM MDT TUE JUL 29 2025  
 
FORECAST IS BASED ON FORECAST START TIME OF 1300 MDT ON JULY 29.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE  
   
DISCUSSION
 
 
SHOWERS AND THUNDERSTORMS ARE EXPECTED TO INITIATE OVER AREA  
MOUNTAIN PEAKS BETWEEN 1400 AND 1500 LT THIS AFTERNOON. STORM  
COVERAGE WILL BE ISOLATED, WITH MOST STRONGER STORMS FORMING WELL  
TO THE EAST OF YELLOWSTONE NP, BETWEEN CENTRAL MONTANA AND CENTRAL  
WYOMING. HOWEVER, CANNOT RULE OUT A FEW THUNDERSTORMS NEAR WEST  
YELLOWSTONE, WITH A 20 TO 30 PERCENT CHANCE OF LIGHTNING IN THE  
VICINITY BETWEEN 1500 AND 2100 LT. SHOWER AND STORM ACTIVITY  
DIMINISH QUICKLY AFTER SUNSET, WITH LIGHT WINDS OVERNIGHT.  
   
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
 
 
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY (20-30 PERCENT CLOUD COVER). SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 91.  
MIN HUMIDITY........9 PERCENT.  
SURFACE WINDS (MPH).LIGHT AND VARIABLE WINDS.  
 
TIME (MDT) 1PM 2PM 3PM 4PM 5PM  
SKY (%).........10 15 20 35 40  
WEATHER COV.....SCH SCH SCH SCH SCH  
WEATHER TYPE....RW RW RW RW RW  
TSTM COV........SCH SCH SCH SCH SCH  
CHC OF PCPN (%).10 10 20 30 30  
TEMP............89 90 89 86 81  
RH..............15 15 15 21 28  
SURFACE WND DIR.NW NW W NW NW  
SURFACE WND SPD.4 5 5 8 8  
SURFACE WND GST.6 8 8 10 13  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING.  
CHANCE OF PCPN......20 PERCENT.  
MIN TEMPERATURE.....AROUND 38.  
MAX HUMIDITY........99 PERCENT.  
SURFACE WINDS (MPH).LIGHT NORTH WINDS AROUND 8 MPH WITH GUSTS TO  
AROUND 15.  
 
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........35 25 25 25 35 25 35 25 30 25 30 35  
WEATHER COV.....SCH SCH SCH  
WEATHER TYPE....RW RW RW  
TSTM COV........SCH SCH SCH  
CHC OF PCPN (%).30 30 20 10 10 10 10 10 10 10 10 10  
TEMP............76 70 65 61 57 53 50 47 45 44 41 39  
RH..............34 40 46 58 73 82 90 97 99 99 99 99  
SURFACE WND DIR.NW N N N N N N N N N N E  
SURFACE WND SPD.10 8 11 10 10 8 8 6 8 5 3 4  
SURFACE WND GST.16 10 17 16 16 13 10 9 13 7 6  
   
FORECAST DAYS 3 THROUGH 5
 
   
THURSDAY
 
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE  
LOWER 40S. HIGHS IN THE LOWER 80S. LIGHT WINDS.    
FRIDAY
 
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS AROUND  
40. HIGHS AROUND 80. LIGHT WINDS.    
SATURDAY
 
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE  
LOWER 40S. HIGHS AROUND 80. LIGHT WINDS.  
 

 
FORECASTER...VANDENBOOGART  
REQUESTED BY...KEVIN LARSON  
TYPE OF REQUEST...OTHER  
.TAG 2518582.3/RIW  
.DELDT 07/29/25  
.FORMATTERVERSION 2.0.0  
.EMAIL KEVIN@READYGALLATIN.COM  
 
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