Severe Thunderstorm Warning until 12:30PM 
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for... Kent County in southwestern Michigan... Ottawa County in southwestern Michigan...
* Until 1230 PM EDT.
* At 1137 AM EDT, severe thunderstorms were located along a line extending from near Sparta to near Allendale to near Beechwood, moving east at 50 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include... Grand Rapids... Holland... Lowell... Wyoming... Kentwood... Walker... Grandville... East Grand Rapids... Hudsonville... Rockford... Zeeland... Coopersville... Sparta... Caledonia... Allendale... Beechwood... Jenison... Holland SP... Ada... Grattan...
* AFFECTED AREAS: KENT, MI ... OTTAWA, MI
Instructions:
For your protection move to an interior room on the lowest floor of a building. Large hail and damaging winds and continuous cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.
Address/Location
GR PUBLIC SAFETY
1 Monroe Center St NW
Grand Rapids, MI 49503
Contact
Emergency: 9-1-1
Non-emergencies: 616-456-3400