631  
SXUS43 KUNR 182001  
RECUNR  
 
AFTERNOON HOT AIR BALLOON FORECAST  
NATIONAL WEATHER SERVICE RAPID CITY SD  
101 PM MST THU DEC 18 2025  
 
THIS FORECAST IS INFORMATION TO ASSIST PILOTS AND AIRCREWS FOR FLIGHT PLANNING  
AND IS NOT TO BE CONSIDERED AS A SOLE SOURCE OF INFORMATION TO MEET ALL  
PREFLIGHT ACTIONS. PILOTS SHOULD RECEIVE A COMPLETE PREFLIGHT BRIEFING FROM A  
FLIGHT SERVICE STATION (1-800-WXBRIEF) OR ONLINE VIA 1800WXBRIEF.COM.  
 
...HERE IS THE AFTERNOON HOT AIR BALLOON FORECAST  
FOR THE HOT SPRINGS MUNICIPAL AIRPORT...  
   
THIS AFTERNOON  
 
SUNSET: 416 PM.  
 
SURFACE WIND FORECAST: 3 PM...290/14G23 MPH.  
5 PM...260/07 MPH.  
 
BOUNDARY LAYER WIND: 3 PM...290/22 MPH. DEPTH 2700 FT.  
5 PM...290/09 MPH. DEPTH 500 FT.  
 
RAP WINDS (APPROX. 4 PM): 250FT...M/M MPH.  
500FT...M/M MPH.  
1000FT...M/M MPH.  
2000FT...M/M MPH.  
3000FT...M/M MPH.  
 
SURFACE LIFTED INDEX: 3 PM...+14.  
6 PM...+18.  
 
DENSITY ALTITUDE: 3 PM...2852 FT.  
5 PM...2650 FT.  
 
ADDITIONAL WEATHER INFO: CLEAR BELOW 12000 FEET AGL,  
UNRESTRICTED VISIBILITIES.  
 
   
OUTLOOK FOR TOMORROW MORNING  
 
SUNRISE: 723 AM.  
WEATHER: CLEAR BELOW 12000 FEET AGL,  
UNRESTRICTED VISIBILITIES.  
SURFACE WIND: 6 AM...240/22G31 MPH.  
8 AM...250/26G37 MPH.  
BOUNDARY WIND: 6 AM...240/31 MPH. DEPTH 500 FT.  
8 AM...260/39 MPH. DEPTH 800 FT.  
 
RAP WINDS (APPROX. 6 AM): 250FT...M/M MPH.  
500FT...M/M MPH.  
1000FT...280/36 MPH.  
2000FT...M/M MPH.  
3000FT...M/M MPH.  
 
THIS FORECAST IS NOT ROUTINELY UPDATED OR AMENDED OUTSIDE OF ANY SCHEDULED  
ISSUANCES.  
 
 
 
ADDITIONAL AVIATION OBSERVATIONS AND FORECASTS ARE AVAILABLE AT  
AVIATIONWEATHER.GOV. YOU CAN ALSO READ THE LOCAL AVIATION FORECAST DISCUSSION  
AT HTTPS://WWW.AVIATIONWEATHER.GOV/FCSTDISC.  
 
 
 
WFO UNR  
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