The tornado count in Friday's severe storms is now at 16. A look at each one:
The number of tornadoes spawned from a powerful storm system that ripped through Iowa on March 31 is now up to 16 — and there may be more added as the National Weather Service continues to investigate.
Large swaths of southeastern Iowa saw extensive damage to homes and buildings in the massive storm front that killed more than two-dozen people across the nation. No one died in Iowa, but there were at least eight injuries.
Coralville and Hills in Johnson County were among the towns that saw extensive damage, and residents in a portion of Charlotte in Clinton County were evacuated because of a propane leak.
David Wilson, director of Johnson County Homeland Security and Emergency, said damage reports were connected to 179 addresses. Most were commercial buildings and multi-family housing, though some government buildings also were hit.
As of Wednesday, 95% of the cleanup in Coralville, Hills and Solon has been complete, Wilson said. Cleanup in rural areas is still ongoing and damage has been difficult to assess.
The NWS has compiled an event summary of the tornadoes that touched down throughout the state over the weekend. They are still investigating the event and say more details will become available in the coming weeks.
It has rated 16 tornadoes using the EF scale, which calculates three-second wind gusts estimated at the point of damage. EF4 tornadoes bring gusts of 166 to 200 mph; EF3, 136 to 165 mph; EF2, 111 to 135 mph; and EF1, 86 to 110 mph.
More: How to claim tornado relief in Iowa if your house or property has been damaged
Here's what we know about Friday's storms, according to the NWS:
Keokuk tornado
Rating: EF4
Peak Winds: 170 mph
Length: Unknown
Injuries: Three
Short summary: A long track EF2 tornado began in Wapello County northeast of Ottumwa and damaged three homes and one hog confinement facility. The tornado developed into a large storm in southern Keokuk County across mostly farmland, where it then traveled into Washington and Johnson counties. With a max width of 600 yards, it severely damaged several homes near Keota, and caused EF4 level damage.
Previously: Gov. Reynolds adds 6 more counties to disaster proclamation after Friday's tornadoes, storm
Coralville tornado track
Rating: EF2
Peak winds: 120 mph
Length: 75 yards
Injuries: Two
Summary: This tornado moved northeast, taking down trees and a few outbuildings. It crossed Highway 218 near Highway 6 in Coralville, damaging a warehouse and flipping several trailers. The tornado moved into a residential area where it uprooted and snapped multiple trees. It dissipated before reaching Interstate 80.
More: Tornadoes wreak extensive damage in eastern Iowa; at least 40 structures damaged in Johnson County
Hills tornado
Rating: EF2
Peak Winds: 120 mph
Length: 8.8 miles
Injuries: None
Summary: The Hills tornado began southwest of the city before it moved across Highway 218 into the northwest part of the town. There it destroyed several outbuildings, large trees and the sidings of houses. Some roofs were torn off. It then moved into a wooded area and continued northeast, destroying more roofs and siding on the southeast side of Iowa City before dissipating northeast of Highway 6.
Tuesday's weather updates: 'Rope-like' Iowa tornado causes damage to rural homes; large hail hits cars, houses
Two Solon tornadoes
Rating: EF2
Peak Winds: 125 mph
Length: 4.4 miles
Injuries: None
Summary: Forming east of the Sugar Bottom campground, the tornado traveled northeast toward Solon. A radio tower collapsed and a roof was lifted. It went into a field and continued into Solon where it uprooted trees and bent signs. Another outbuilding was destroyed before the tornado lifted north of Sutliff Road.
Another Solon tornado traveled a longer distance
Rating: EF 2
Peak Winds: 130 mph
Length: 8 miles
Injuries: None
Summary: Forming northwest of Solon, this tornado moved northeast and destroyed several trees and a small part of a shed roof. A farm lost two large outbuildings and grain silos. Power poles also were damaged. As it moved into the Johnson-Linn county line, it caused minor shingle damage and broken windows to a house and did some roof damage to another before it dissipated.
Tuesday's storms: NWS confirms tornado in Marion County Tuesday night, sends crew to survey
Mediapolis tornado
Rating: EF2
Peak Winds: 120 mph
Length: 1 mile
Injuries: None
Summary: This brief tornado moved east across the southern part of Mediapolis, taking off siding and shingles on a few businesses. With a max width of 100 yards, several large tree parts fell on mobile homes before the tornado dissipated on the east part of town.
Bennett tornado
Rating: EF2
Peak Winds: 120 mph
Length: 19.6 miles
Injuries: Two
Summary: This tornado, which had a maximum width of 200 yards, touched down three miles north of Atalissa. It snapped power poles, large trees and caused significant damage to two homes southwest of Bennett. A semi truck was flipped over on Interstate 80. The tornado also damaged several concrete block silos south of Bennett before it continued northeast about 8 miles.
Previously: 9 possible tornadoes tallied in eastern Iowa Friday from 'strong and unusual storm system'
Charlotte tornado
Rating: EF2
Peak Winds: 120 mph
Length: 17.5 miles
Injuries: One
Summary: This tornado, which reached a maximum width of 350 yards, formed southeast of Grand Mound and moved toward Charlotte. Several houses were damaged, with the highest damaged rating northeast of Grand Mound. There, a whole house was shifted off the foundation and another collapsed. Partial and complete damage to barns occurred in Charlotte. Three people were trapped in the house that collapsed. One went to the hospital with minor injuries.
Tipton-Clarence tornado
Rating: EF2
Peak Winds: 120
Length: 22.7 miles
Injuries: None
Summary: This tornado developed northeast of West Branch and moved northeast through the Tipton and Clarence area. It lifted south of the Cedar-Jones county line. With a max width of 250 yds, it uprooted large trees, tore a roof off and snapped power poles.
What is a tornado watch? Tornado warning? Here's a look at the differences
Vinton tornado
Rating: EF2
Peak Winds: 115 mph
Length: 1.7 miles
Injuries: None
Summary: Developing northwest of Vinton, this tornado had a maximum width of 50 yards and moved northeast, damaging farm buildings, trees and power poles.
Mount Auburn tornado
Rating: EF2
Peak Winds: 115 mph
Length: 0.06 miles
Injuries: None
Summary: This short tornado had a maximum width of 30 yards and caused significant damage to a farm building, home and trees. It lifted close to the Buchanan County line.
Tornadoes with ratings below EF2
Other tornadoes with ratings below an EF2 include:
Bellevue — EF1
Tipton — EF1
Manchester — EF1
Oneida — EF1
Andrew — EF0
Noelle Alviz-Gransee is a breaking news reporter at the Des Moines Register. Follow her on Twitter @NoelleHannika or email her at NAlvizGransee@registermedia.com.
This article originally appeared on Des Moines Register: 16 Iowa tornadoes hit Friday. Here are the ratings, injuries and path
