Severe Thunderstorm Warning until 06:30PM 
SVRFSD The National Weather Service in Sioux Falls has issued a
* Severe Thunderstorm Warning for... Southeastern Lyon County in northwestern Iowa... Southwestern Osceola County in northwestern Iowa... Northeastern Sioux County in northwestern Iowa... Northwestern O'Brien County in northwestern Iowa...
* Until 630 PM CDT.
* At 541 PM CDT, a severe thunderstorm was located near Rock Valley, or near Sioux Center, moving east at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
* This severe thunderstorm will be near... Sioux Center and Hull around 545 PM CDT. Boyden around 550 PM CDT. Sheldon and Hospers around 600 PM CDT. Other locations in the path of this severe thunderstorm include Matlock and Archer.
* AFFECTED AREAS: LYON, IA ... O'BRIEN, IA ... OSCEOLA, IA ... SIOUX, IA
Instructions:
For your protection move to an interior room on the lowest floor of a building.
Address/Location
Sioux County Sheriff's Office
4363 Ironwood Ave., Ste 1
Orange City, IA 51250
Contact
Emergency: 9-1-1
Non-emergencies: 712-737-3307