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Rock County Sheriff's Office MN
Sunday May 17th, 2026 :: 04:19 p.m. CDT

Advisory

Severe Thunderstorm Warning until 05:00PM

SVRFSD The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for... Western Lyon County in northwestern Iowa... Southwestern Rock County in southwestern Minnesota... Southern Minnehaha County in southeastern South Dakota... Northern Lincoln County in southeastern South Dakota... Northeastern Turner County in southeastern South Dakota...

* Until 500 PM CDT.

* At 418 PM CDT, severe thunderstorms were located along a line extending from near Chancellor to near Lennox to near Worthing, moving east at 40 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings.

* Severe thunderstorms will be near... Sioux Falls, Harrisburg, and Tea around 425 PM CDT. Lake Alvin State Recreation Area around 435 PM CDT. Other locations in the path of these severe thunderstorms include Inwood, Brandon, Larchwood and Rowena.

* AFFECTED AREAS: LYON, IA ... ROCK, MN ... LINCOLN, SD ... MINNEHAHA, SD ... TURNER, SD

Instructions:

For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 1000 PM CDT for northwestern Iowa...southwestern Minnesota...and southeastern South Dakota.

Address/Location
Rock County Sheriff's Office MN
1000 N Blue Mound Ave
Luverne, MN 56156

Contact
Emergency: 9-1-1
Non-emergencies: 507-283-5000

TEXT-A-TIP -  Text TIP ROCKCO followed by your message, to 888777

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Alert Details

Severity:
Severe - Significant threat to life or property
Urgency:
Immediate - Responsive action SHOULD be taken immediately
Certainty:
Observed - Determined to have occurred or to be ongoing
Category:
Meteorological (inc. flood)
Event:
Severe Thunderstorm Warning

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