Local Weather History: Local Tornado (& Some Severe T'Storm) Climatology

Here is a deeper look into tornado climatology in the viewing area.

Posted: Aug 22, 2019 5:09 PM
Updated: Aug 22, 2019 6:29 PM

Here is some tornado & wind climatology for the viewing area below!

On a side note, here at the greatest tornado, hail & wind reports for the area dating back to the earliest reports:

Tornado:  Low-End EF5

March 20, 1866

Southern Montgomery County......Approx. 67-Mile Track & Up to 0.8-Mile Wide

Hail:  +4.50"

June 30, 1877

Lafayette

Wind:  136 mph

July 15, 1995

Grissom ARB Microburst

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The number of tornadoes in our area tends to peak May 25-June 5 in our viewing area as a whole.

However, the southwest counties tend to see the peak first & the north & northeast last.

Although the sheer number of tornadoes tends to peak in this period, the the most violent tornadoes have occurred in April to early May area-wide.

The area that seems to have the greatest number of tornado watches per year is deep in Dixie Alley.  There, Tornado Watches occur in the Late Fall, Winter to early Spring & then again with landfalling hurricanes in Summer to early Fall.  This increases the overall number of such watches there.

In our area Warren & Tippecanoe counties have averaged the greatest number of Tornado Watches, at least in the 1993-2012 period.

This deep Dixie Alley tends to have the greatest number of Tornado Warnings per year.

Central Oklahoma & Kansas see the greatest number of Severe T'Storm Watches per year in the 1993-2012 dataset.

However, note the Corn Belt/Prairie Peninsula higher frequency of Severe T'Storm Watches from Iowa to Central Illinois, Indiana & Ohio where there are a high number of MCSs, derechos in Summer & frequent squall lines in Spring & Fall.

In terms of severe t'storms, the average period to get damaging winds (1955-2014) is 5-6 p.m.

This map shows the average minutes in Severe T'Storm Warnings on average per year.

In the 1994-2013 period, Newton, Fulton, Miami counties averaged the greatest number of minutes in Severe T'Storm Warning.

West Lafayette
Clear
72° wxIcon
Hi: 83° Lo: 54°
Feels Like: 72°
Kokomo
Clear
70° wxIcon
Hi: 80° Lo: 55°
Feels Like: 70°
Rensselaer
Clear
68° wxIcon
Hi: 79° Lo: 52°
Feels Like: 68°
Fowler
Clear
72° wxIcon
Hi: 80° Lo: 53°
Feels Like: 72°
Williamsport
Clear
69° wxIcon
Hi: 82° Lo: 53°
Feels Like: 69°
Crawfordsville
Clear
72° wxIcon
Hi: 83° Lo: 52°
Feels Like: 72°
Frankfort
Clear
72° wxIcon
Hi: 81° Lo: 53°
Feels Like: 72°
Delphi
Clear
69° wxIcon
Hi: 82° Lo: 54°
Feels Like: 69°
Monticello
Clear
69° wxIcon
Hi: 81° Lo: 56°
Feels Like: 69°
Logansport
Clear
70° wxIcon
Hi: 80° Lo: 53°
Feels Like: 70°
Once more pleasant day before we see changes with an increase in heat and humidity, and thunderstorm chances.
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CountyCasesDeaths
Marion1031281779
Lake555181006
Allen41642691
St. Joseph36959564
Hamilton36537416
Elkhart29373459
Tippecanoe22871224
Vanderburgh22544400
Porter19339325
Johnson18412388
Hendricks17594317
Clark13202193
Madison13128344
Vigo12606253
LaPorte12400221
Monroe12175175
Delaware10949198
Howard10270225
Kosciusko9615119
Hancock8556145
Bartholomew8162157
Warrick7854156
Floyd7775180
Grant7230179
Wayne7158201
Boone6922103
Morgan6742141
Dubois6211118
Marshall6208116
Cass5997109
Henry5894108
Dearborn589078
Noble580287
Jackson508774
Shelby500897
Lawrence4735121
Gibson444293
Harrison441073
Clinton440455
DeKalb438985
Montgomery434890
Whitley406042
Huntington402281
Steuben399359
Miami392968
Jasper387054
Knox375790
Putnam372160
Wabash360683
Ripley346570
Adams344955
Jefferson335685
White330853
Daviess3031100
Wells295181
Decatur289992
Greene286685
Fayette284864
Posey273735
LaGrange273072
Scott269955
Clay266048
Washington245034
Randolph244683
Jennings235249
Spencer234231
Starke227858
Fountain219147
Sullivan214043
Owen211258
Fulton202142
Jay200932
Carroll193420
Orange188155
Perry187037
Rush175726
Vermillion174044
Franklin170235
Tipton166046
Parke149016
Pike138134
Blackford136132
Pulaski120347
Newton113036
Brown104043
Crawford102316
Benton101114
Martin91615
Warren83615
Switzerland8108
Union72810
Ohio57811
Unassigned0420

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