EF1 Tornado Hits Kansas City, Damaging Buildings

EF1 Tornado Hits Kansas City, Damaging Buildings

July 2, 2015 5:58 pm Published by

Yesterday between approximately 6:50pm and 7:15pm CDT a tornado reaching EF1 wind levels touched down between Raytown and Lee’s Summit, and touched down again in the outskirts of Kansas City. Here’s some amazing footage of the tornado passing over the Lee’s Summit area.


Understory stations were live and measuring weather conditions throughout the storm. The cell that would spawn the EF1 tornado passed over our station in Raytown from 6:17-6:37pm CDT, causing a spike in wind speeds, drop in pressure, and drop in temperature (as shown in Figure 1). The pressure drop happened at 6:17pm CDT, while the spike in wind didn’t begin until around 6:32pm CDT.

Screen Shot 2015-07-02 at 10.57.29 AM

Figure 1: Screen capture of the myRTi interface for our Raytown station. Note the spike in wind speed (sustained wind) at 6:33pm CDT, accompanied by a drop in pressure and temperature.

Heading southeast, it arrived over Unity Village at 6:48pm CDT, again with a spike in wind, and drops in pressure and temperature occurring earlier (see Figure 2).

Screen Shot 2015-07-02 at 10.58.20 AM

Figure 2: Screen capture of the myRTi interface for our Unity Village station. The cell that spawned the EF1 tornado passed over starting at 6:49pm CDT.

We’ve released an estimated tornado path to customers earlier this morning. Winds outside the path were lower than 26 mph and non-damaging, so we expect all property claims to be within this outer path.

[table type=”standard_bordered”]
[thcol]Affected Area[/thcol]
[thcol]Housing Units[/thcol]
[tcol]Estimated High Claim Activity[/tcol]
[tcol]Estimated Tornado Path[/tcol]
[tcol]Estimated High Tornado Damage[/tcol]


The outer path of high claim activity includes almost 84,700 housing units. In the center of the tornado’s path we expect high property damage due to shrapnel and high winds. Luckily no one was injured, but unfortunately there are almost 1,900 homes within this high damage area. We’re also releasing this path to Understory account holders. The tornado path is available for download on our web platform by finding the July 1st storm summary under Storms By Date. The file is in the KML format, which can be opened by Google Earth or similar GIS platforms.


Please send any inquiries to reports-at-understoryweather.com.