Severe thunderstorms and tornadoes track through eastern Iowa We - KWWL - Eastern Iowa Breaking News, Weather, Closings

Severe thunderstorms and tornadoes track through eastern Iowa Wednesday

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KWWL Drone footage from Prairieburg KWWL Drone footage from Prairieburg
Eastern Iowa Storm Reports Eastern Iowa Storm Reports
Preliminary Tornado Reports Preliminary Tornado Reports

FRIDAY AFTERNOON UPDATE: An EF-2 tornado has been confirmed north of Monticello on the Jones and Delaware County line with wind estimated at 120 mph.  National Weather Service survey crews are headed to Oxford Junction to check on another reported tornado.  More details on the tornadoes should be released later Friday.

A third tornado has been confirmed near Oxford Junction.  It was an EF-1 with an estimated wind speed of 90 mph.  More information coming.

A fourth tornado has been confirmed near Vinton, rated an EF-0.  The National Weather Service says someone reported a funnel cloud, and there is video of a brief touchdown just to the east of Vinton.  NWS will not be surveying the damage, as emergency management only reported minor damage to a machine shed.

The National Weather Service has also confirmed 120 mph winds with the EF-2 tornado that went through Prairieburg.


THURSDAY AFTERNOON UPDATE: Preliminary results from a survey conducted by the National Weather Service in Davenport found an EF-2 rating (winds between 111 and 135 mph) for the tornado on a path including Central City and Prairieburg.  The survey crew will be back out Friday to complete the survey with a complete report to follow.

National Weather Service La Crosse survey team found damage in Clayton County around Farmersburg and Monona.  This was from straight line winds of 50-80 mph.  The damage continued into Grant County in Wisconsin.  More details to come.


It was an active evening of severe weather across eastern Iowa Wednesday. 

The first thunderstorms were in northwestern portions of the KWWL viewing area, where we had several reports of hail in parts of Chickasaw (near New Hampton) and Floyd County.  

In southern Winneshiek County, there was a report of thunderstorm wind damage near Calmar, where a tree was snapped after 4 PM.  Between 4 and 5 PM, severe thunderstorms tracked through portions of Clayton County, producing 65 mph wind that produced extensive tree damage at the intersection of 165th Street and Falcon Avenue in Farmersburg.  There were also reports of power lines that were knocked over just to the east of Farmersburg in the town of Giard.  Several reports of pea size hail were also reported.

Between 6 and 8 PM, severe thunderstorms tracked through parts of Grundy, Tama, Black Hawk and Benton counties, producing several reports of quarter to ping-pong ball size hail.

The big story this evening were the multiple reports of tornadoes in parts of Linn, Jones, Delaware and Dubuque counties.  The first report of a tornado came near the Central City area in Linn County.  A trained storm spotter saw the tornado, and debris was confirmed on the radar between Central City and Prairieburg.  Prairieburg was the next report from a trained spotter of a "large tornado with debris."  This also showed up on our tornado debris product on Storm Track 7 Live Doppler Radar.  There was also reports of a house that was blown over in Prairieburg, with a person trapped inside.

As that storm tracked northeast into portions of Jones County, where several barns and structures were damaged, possibly from a tornado.  The storm clipped portions Delaware County as it tracked into Dubuque County, with Emergency Management reporting a tornado around the Worthington area, as well as Cascade.  There was also another tornado spotted around Oxford Junction.

The Dubuque Regional Airport reported a wind gust of 58 mph.

The National Weather Service will be sending crews out in the days ahead to survey the damage, to find out how strong the tornadoes were, and the exact paths of them.  Stay with KWWL for further updates.

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