Weather Alerts For Bison, SD

# HEADLINE -------------------- WIND ADVISORY IN EFFECT FROM 6 AM TO 8 PM MDT WEDNESDAY # DETAILS -------------------- WHAT Northwest winds 30 to 45 mph with gusts up to 55 mph expected. WHERE A portion of northwestern South Dakota. WHEN From 6 AM to 8 PM MDT Wednesday. IMPACTS Sudden wind gusts can cause drivers to lose control, especially in lightweight or high profile vehicles. Strong winds can cause blowing dust, reduced visibility, and flying debris. ISSUED AT Tuesday, June 16, 2026 at 11:25 AM MDT ISSUED BY National Weather Service Rapid City SD HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects. # AREAS AFFECTED -------------------- Southern Perkins, Butte, Harding, Northern Foothills, Northern Meade Co Plains, Northern Perkins, Southern Meade Co Plains, Sturgis/Piedmont Foothills Including the cities of Hoover, Enning, Elm Springs, Red Owl, Redig, Faith, Opal, Prairie City, Shadehill, Howes, White Owl, Whitewood, Newell, Mud Butte, Usta, Camp Crook, Sorum, Belle Fourche Reservoir, Saint Onge, Reva, Ladner, Ellsworth AFB, Meadow, Union Center, Summerset, Fruitdale, Black Hawk, Vale, Buffalo, Belle Fourche, Tilford, Ludlow, Spearfish, Zeona, Piedmont, Sturgis, Bison, and Lemmon

# HEADLINE -------------------- A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN ZIEBACH AND EAST CENTRAL PERKINS COUNTIES UNTIL 930 PM MDT # SUMMARY -------------------- At 840 PM MDT, Doppler radar was tracking a strong thunderstorm near Bison, or 29 miles south of Lemmon, moving southeast at 55 mph. # DETAILS -------------------- HAZARD Wind gusts of 50 to 55 mph and pea size hail. SOURCE Radar indicated. IMPACT Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. LOCATIONS IMPACTED INCLUDE Bison, Meadow, Chance, Glad Valley, Thunder Butte, southwestern Shadehill Reservoir, Owen Lake and northwestern Cheyenne River Reservation. ISSUED AT Tuesday, June 16, 2026 at 8:40 PM MDT ISSUED BY National Weather Service Rapid City SD HEADER Special Weather Statement # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Monitor the weather situation closely and be alert for threatening weather conditions. # AREAS AFFECTED -------------------- Northern Perkins SD, Southern Perkins SD, Ziebach SD

Closest strike: 6.11 miles Stay Alert! Remain in a safe area until there has been no lightning within 10 miles of this location for 30 minutes. Please be aware that lightning activity can remain high even when a storm is moving away from your location. Even if rain has stopped, do not leave your safe area until WeatherBug indicates that lightning is more than 10 miles away from this selected location. IF OUTDOORS Avoid water, high ground, and open spaces. Avoid all metal objects including electric wires, fences, and machinery. Find a safe area in a building or in a fully enclosed vehicle with the windows completely shut. Unsafe places include underneath canopies, small picnic or rain shelters, convertibles, or near trees. IF INDOORS Avoid water and stay away from doors and windows. Avoid using a hard line telephone. Take off headphones. Turn off, unplug, and stay away from appliances, computers, power tools, and TV sets. Lightning may strike exterior electric and phone lines, inducing shocks to inside equipment.

There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF IOWA AND OVER A SMALL PART OF CENTRAL INDIANA SUMMARY Severe storms producing hail remain possible from southern Kansas into northwest Oklahoma this evening. Isolated severe hail or wind will persist across the northern Plains and into Iowa by Wednesday morning. Isolated severe storms may persist from Indiana into western Ohio this evening. IN/OH/MI 00Z DTX and ILN soundings show modest instability but favorable shear profiles to sustain cellular storm mode this evening. However, storms across this region are beginning to decrease in coverage and intensity, though isolated strong to severe storms may persist with marginal hail or brief tornado risk before the upper trough moves out of the area and the air mass stabilizes. KS/OK/TX Panhandle A mixed boundary layer, increasing low-level jet and northwest flow aloft is aiding a few cells over southwest KS into northwest OK. Periodic large damaging hail remain possible, and a cell or two may persist this evening, perhaps toward the eastern TX Panhandle as moisture returns northwestward. However, the cooling boundary layer will eventually result in decreasing coverage. From MT to IA Scattered storms exist from MT into ND, beneath cool temperatures aloft with the developing upper trough. Locally severe gusts may occur with any of this activity as a relatively dry/mixed sub cloud layer exists on 00Z soundings. Later tonight, as the low-level jet increases into the central Plains, a plume of mid 60s F dewpoints will reach eastern NE into IA, and may fuel cells initially producing hail following a possible MCS.