GRAND RAPIDS, Mich. -

The National Weather Service has confirmed that a tornado injured several people and caused significant damage to homes in western Michigan.

Brian Meade, a meteorologist in Grand Rapids, says a survey of storm damage on Monday led to the determination about the damage in nearby Kentwood. He says winds late Sunday were estimated at more than 80 mph.

The tornado appears to have touched down between 10:20 p.m.  and 10:30 p.m. on Monday.  National Weather Service determined it was a high-end EF1 tornado.

The weather service received reports that a couple of buildings had partially collapsed and that the storm downed numerous trees and power lines.

Jan Collins told The Grand Rapids Press that she heard the wind blow and then, an enormous boom as a tree toppled onto her family's garage.

"There was this rumbling sound, and it was raining especially hard, before the wind came out of nowhere," Collins said. "I think the car will be OK — the tree kind of just rested on top."

Kent County emergency management coordinator Jack Stewart told WOOD-TV that six people were injured, but that the severity of their injuries was unknown. The weather service said two people were taken to the hospital.

A roof collapsed at Pizzazz Banquet Center, but no one attending a party inside was seriously injured, The Grand Rapids Press reported.

Flash flood warnings were in effect Monday for a number of western and central Michigan counties as more storms moved through the state. The Weather Service had received reports of flooding in Alma, in Gratiot County, with 6-8 inches of standing water reported in one spot.

Cleanup underway after tornado touches down in west Michigan

AND IF THEY ARE, THAT'S REAL TROUBLE FOR THOSE FOUR DEFENDANTS. Karen: THE LONG PROCESS OF CLEANING UP AND PICKING UP THE PIECES HAS BEGUN AFTER A TORNADO TOUCHED DOWN NEAR GRAND RAPIDS. Steve: A POWERFUL STORM AND TORNADO HIT, DOWNING POWER LINES AND UPRIGHTING TREES. Karen: PRIYA MANN IS IN WYOMING MICHIGAN, AND FOLKS ARE WONDERING WHY THEY NEVER HEARD ABOUT A TORNADO WARNING. PRIYA? Priya: THE NATIONAL WEATHER SERVICE IS SAYING THIS IS A VERY RARE TORNADO AND MOVED IN BEHIND THE STORM. THAT MADE IT ALMOST NEXT TO IMPOSSIBLE FOR THE RADAR TO PICK IT UP LET ALONE PUT OUT A WARNING. AND WE WERE TOLD TO MOVE THE LIVE TRUCKS BECAUSE FIVE POLES HAD SNAPPED SENDING ELECTRICAL WIRES ON TO CARS. A LOT HAS CHANGED IN LESS THAN 24 HOURS. IN AN HOUR. Priya: THE SOUND AND SPEED AROUND 10:30 SUNDAY NIGHT IS CONSISTENT WITH A TORNADO. THE NATIONAL WEATHER SERVICE SAYS THE EF-1 TORNADO THAT TOUCHED DOWN AT THE BORDER OF KENTWOOD AND WYOMING SNAPPED TREES AND BLEW OFF GARAGE DOOR BUT NOT STRONG ENOUGH TO INJURE ANYONE INSIDE THEIR HOME. I DON'T SEE HOW WE COULD HAVE CAUGHT IT BEFORE IT WAS ON THE GROUND. WHAT I LOOK FOR IS FOR A TORNADO OF THIS SIZE, IT'S GONNA HAPPEN. IT WILL HELP YOU AND BE OVER BEFORE YOU KNOW WHAT HAPPENED. Priya: SIX PEOPLE WERE INJURED FOLLOWING THE STORM. A DAY LATER, FIRST RESPONDERS, CITY CREWS, AND PRIVATE CONTRACTORS ARE CLEANING UP THE MESS MOTHER NATURE LEFT BEHIND IN 10 MINUTES. ROADS ARE BLOCKED OFF AND POWER IS OUT TO AROUND 10,000 PEOPLE. HOPEFULLY BY 6 P.M. TOMORROW, POWER WILL BE RESTORED. THE DPW CREWS ARE WORKING TO GET THINGS OFF THE ROADWAY. Priya: CREWS ARE TRYING TO ASSESS THE DAMAGE AND IT WILL BE AT LEAST A WEEK BEFORE LIFE GETS BACK TO NORMAL IN THIS COMMUNITY. THIS IS PRETTY SIGNIFICANT. WE'RE USED TO GETTING STRAIGHT-LINE WINDS AND HIGH WINDS, BUT YOU DON'T SEE THIS TYPE OF DESTRUCTION THAT OFTEN. Priya: I'M BEING TOLD ABOUT 200 STRUCTURES IN A TWO-SQUARE-MILE AREA WERE AFFECTED. 200 CITY AND PRIVATE CONTRACTORS WERE WORKING TO RESTORE POWER AND CLEAR DEBRIS. AS FOR THE RADAR WARNING. THE NATIONAL WEATHER SERVICE IS HOPING THAT THEY'LL HAVE NEW TECHNOLOGY WITHIN THE NEXT DECADE SO THEY CAN WARN PEOPLE, EVEN IF A TORNADO LASTS JUST TEN

The American Red Cross opened a shelter at Kentwood Community Center for those without power or otherwise displaced from their homes.

CMS Energy Corp.'s Consumers Energy unit said Monday morning that roughly 20,000 of its customers lost power. About 9,600 of those homes and businesses are in Kent County, including Kentwood. The utility said it could be late Tuesday before power is fully restored.

Slideshow: Storm damage in Kentwood

Published On: Jul 07 2014 06:35:49 AM EDT   Updated On: Jul 07 2014 07:31:39 AM EDT

Authorities say a severe thunderstorm packing winds estimated at more than 80 mph caused significant damage to homes in a western Michigan community and injured several people.

Kentwood storm damage 1
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