Destructive Thunderstorm Threatens Sully, Dewey and Potter Counties
A Severe Thunderstorm Warning is in effect for portions of central and north-central South Dakota, including North Central Sully County, Southeastern Dewey County, and Southwestern Potter County. The warning highlights a destructive thunderstorm threat, with dangerous winds and/or large, damaging hail possible.
Residents and travelers in and around the warned area should take the threat seriously and move indoors as storms approach.
Where the Severe Thunderstorm Threat Is Greatest
The warning covers:
- North Central Sully County, South Dakota
- Southeastern Dewey County, South Dakota
- Southwestern Potter County, South Dakota
Because severe thunderstorms can intensify or shift quickly, people near the warning area should continue monitoring updated weather information rather than relying on the current warning boundaries alone.
Destructive Winds and Large Hail Are the Main Concerns
The most significant concern with this storm is the potential for destructive thunderstorm winds and/or large damaging hail.
Dangerous Thunderstorm Winds
Strong to destructive winds can develop rapidly within severe thunderstorms. These winds can:
- Knock down tree limbs and trees
- Damage roofs, siding and other structures
- Create hazardous driving conditions
- Blow around unsecured outdoor objects
- Cause scattered power outages
If you are outside when the storm approaches, get inside a sturdy building as quickly as possible.
Large, Damaging Hail
Large hail can break windows, damage vehicles and injure people and animals caught outdoors.
Therefore, move vehicles into a garage or other substantial shelter if time allows. However, do not delay seeking shelter just to protect a vehicle.
What Residents Should Do Now
If you are located within the warned portions of Sully, Dewey or Potter counties, take shelter indoors.
Stay away from windows and exterior doors during the strongest part of the storm. If destructive winds or very large hail are occurring, move to an interior room on the lowest floor of a sturdy building.
If you are driving, avoid stopping underneath bridges or overpasses. Instead, seek a sturdy building whenever possible.
Power Outages and Storm Damage Possible
Destructive thunderstorm winds can produce localized damage and power outages. After the storm passes, stay away from downed power lines and report them to the appropriate utility or emergency officials.
Additionally, never assume a fallen wire is safe because it does not appear to be sparking.
Storm Safety Reminder
Severe thunderstorms can change quickly. Even if conditions are calm where you are, storms nearby may strengthen rapidly.
Keep weather alerts enabled and monitor reliable weather information throughout the event. If a warning is upgraded, extended or replaced with another warning, follow the latest instructions immediately.
Radar Watch HQ Final Thoughts
The Severe Thunderstorm Warning across parts of Sully, Dewey and Potter counties in South Dakota carries a potentially dangerous threat from destructive winds and large, damaging hail.
The safest decision is simple: get indoors, stay away from windows and remain sheltered until the severe weather threat has passed.
Continue monitoring Radar Watch HQ and official weather updates for additional information as these storms move through the region.
Stay weather-aware. Stay prepared. Stay safe.
Affiliate Disclosure: As an Amazon Associate, Radar Watch HQ earns from qualifying purchases.
Radar Watch HQ Top 5 Essential Emergency Preparedness Picks
Whether you’re preparing for severe thunderstorms, flash flooding, hurricanes, wildfires, or extended power outages, these five emergency essentials can help keep your household safer when severe weather strikes.
A portable power station provides reliable backup electricity during outages, allowing you to power phones, medical devices, laptops, lights, small appliances, and communication equipment without fuel.
Best for:
- Extended power outages
- Severe thunderstorms
- Hurricanes
- Winter storms
- Wildfires
2. Flood Protection Barriers & Sandless Flood Bags
Flood barriers help divert or absorb water before it enters garages, doorways, and low-lying areas. They deploy quickly and can help reduce property damage during flash flooding.
Best for:
- Flash Flood Warnings
- Heavy rainfall
- River flooding
- Coastal flooding
3. Rechargeable LED Flashlights
Bright, dependable flashlights are essential when the power goes out. Rechargeable or solar-powered models provide long-lasting illumination for navigating safely indoors and outdoors.
Best for:
- Overnight power outages
- Emergency evacuations
- Storm damage inspections
Keep phones, tablets, weather radios, and USB-powered devices charged when the electrical grid is unavailable. A solar power bank offers an additional charging option during prolonged emergencies.
Best for:
- Communication during outages
- Emergency weather alerts
- Travel and evacuation
A NOAA Weather Radio delivers official weather alerts directly from the National Weather Service, even when cellular networks or internet service are unavailable. It remains one of the most dependable ways to receive life-saving warnings.
Best for:
- Tornado warnings
- Severe thunderstorm warnings
- Flash flood warnings
- Hurricane alerts
- Winter storm emergencies
Why Radar Watch HQ Recommends These Essentials
At Radar Watch HQ, preparedness is just as important as staying informed. These five emergency essentials can help you stay connected, protect your property, and safely navigate severe weather events. Having supplies ready before storms arrive allows you to respond quickly when warnings are issued and conditions begin to deteriorate.
