Severe Storms and Tornado from July 15, 2024

Overview

Thunderstorms rapidly developed over central Iowa on the afternoon of Monday, July 15, 2024. These storms quickly intensified as they progressed eastward and morphed into a line of severe storms that clipped portions of northeast Iowa and far southwest Wisconsin. Intense wind gusts to 75 mph were reported on the north end of these storms, and a brief EF1 tornado developed in southern Grant County in Kieler, WI. Localized flash flooding was also reported in southern Grant County.

These storms went on to produce widespread substantial wind damage stretching from eastern Iowa through northern Illinois and northern Indiana. The system was designated a derecho by the Storm Prediction Center.

Radar loop from 3 to 8 PM Monday, July 15

Tornado
Severe Reports

Tornadoes:

Tornado - Kieler, WI
GRANT COUNTY

Date	July 15, 2024
Time (Local)	6:14 - 6:15 PM CDT
EF Rating	EF1
Est. Peak Winds	90 mph
Path Length	0.3 miles
Max Width	30 yards
Injuries/Deaths	0/0
Summary: Grant County Emergency Management provided ground photos and drone footage that revealed a narrow and short tornado path on the northeast side of Kieler. The tornado touched down west of County Road HHH and produced intermittent tree damage before causing substantial roof damage to two structures. The tornado then continued northeast, crossing County Road H where it dissipated after damaging an outbuilding.

Track Map

Downloadable KMZ File


Roof Damage to The Village Bar (courtesy Grant County EMA)	Tornado Damage to Two Structures (courtesy Grant County EMA)	KARX Radar at 6:13 PM CDT	KARX Radar at 6:15 PM CDT

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Storm Reports:

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     Hail             2 W Cassville           42.70N 91.03W
07/15/2024  M0.88 Inch       Clayton            IA   Public           

             

0558 PM     Tstm Wnd Gst     Guttenberg              42.79N 91.10W
07/15/2024  M52 MPH          Clayton            IA   Trained Spotter  

             

0558 PM     Tstm Wnd Gst     North Buena Vista       42.68N 90.96W
07/15/2024  E75 MPH          Clayton            IA   Law Enforcement  

             

0614 PM     Tstm Wnd Dmg     3 SW Kieler             42.54N 90.62W
07/15/2024                   Grant              WI   Trained Spotter  

            Flag pole and large branch broken. 


0614 PM     Tornado          Kieler                  42.59N 90.59W
07/15/2024                   Grant              WI   Emergency Mngr   

            A brief EF-1 tornado in Kieler produced tree 
            and structural damage near County Road H. 
            The tornado lasted for 1 minute. 


0628 PM     Tstm Wnd Gst     Hazel Green             42.53N 90.44W
07/15/2024  M72 MPH          Grant              WI   Emergency Mngr   

             


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