Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >
Crazy Horse Memorial
Devils Tower National Monument
Mount Rushmore National Memorial
Spearfish Canyon Scenic Byway (near the Spearfish entrance)
Badlands National Park (Interior entrance)
Custer State Park
Wind Cave National Park
Angostura Reservoir
Belle Fourche Reservoir
Cold Brook Reservoir
Deerfield Reservoir
Keyhole Reservoir
Pactola Reservoir
Shadehill Reservoir
We'd like to know how you use this forecast. Please send a note to our Warning Coordination Meteorologist, Aaron Woodward. Thanks!
539
SXUS43 KUNR 092001
RECUNR
Afternoon Hot Air Balloon Forecast
National Weather Service Rapid City SD
201 PM MDT Sat Aug 9 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: 805 PM.
Surface Wind Forecast: 4 PM...280/10G20 mph.
6 PM...320/10G18 mph.
Boundary Layer Wind: 4 PM...280/18 mph. Depth 9500 ft.
6 PM...310/17 mph. Depth 9200 ft.
RAP Winds (approx. 5 PM): 250ft...300/09 mph.
500ft...300/09 mph.
1000ft...300/10 mph.
2000ft...300/11 mph.
3000ft...290/12 mph.
Surface Lifted Index: 4 PM...+1.
7 PM...+2.
Density Altitude: 4 PM...5945 ft.
6 PM...5895 ft.
Additional Weather Info: clear below 12000 feet AGL,
unrestricted visibilities.
.OUTLOOK FOR TOMORROW MORNING...
Sunrise: 551 AM.
Weather: clear below 12000 feet AGL,
unrestricted visibilities.
Surface Wind: 6 AM...320/05 mph.
8 AM...150/05 mph.
Boundary Wind: 6 AM...300/09 mph. Depth 500 ft.
8 AM...060/09 mph. Depth 1200 ft.
RAP Winds (approx. 6 AM): 250ft...060/05 mph.
500ft...060/10 mph.
1000ft...030/11 mph.
2000ft...010/12 mph.
3000ft...010/12 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
Note: "Boundary layer" above refers to the planetary boundary layer, or the layer within which the effects of friction are significant (courtesy of the NWS Glossary). The depth of this layer will vary throughout the day, typically reaching its maximum depth in the afternoon and minimum depth overnight.
A major operating system upgrade (May 19, 2025) deprecated the software necessary to create the soaring forecast. The soaring forecast will no longer be available. This tab will be removed this summer.
The soundings below show temperature (in red) and dew point (in green) at decreasing pressures (increasing heights) throughout the atmosphere. Latest Observed Sounding from Rapid City |
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Forecast Soundings for the Hot Springs Municipal Airport (click to zoom) |
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