FORT WAYNE, Ind. (WFFT) — Seven years ago on November 17, 2013, more than 70 tornadoes tore across the Midwest.
The tornadoes impacted seven states which included Illinois, Indiana, Kentucky, Michigan, Missouri, Tennessee and Ohio.
Indiana and Illinois were hit by 55 of those tornadoes.
— Frank Alsheimer (@Thorcaster) October 21, 2014
The event went down as the fourth largest tornado outbreak for Illinois.
According to the National Weather Service (NWS), there were 30 tornadoes surveyed in Indiana, which ranks this event as the second largest in state history for the number of tornadoes in one day.
It was also the state's largest tornado outbreak for the month of November.
The NWS called it “a major late-season severe weather outbreak”.
HOW IT HAPPENED
A strong low pressure system moved through the region on November 17, 2013.
Storms began to fire up in central Illinois ahead of a potent cold front early in the afternoon.
They fired up as distinct supercells that had a forward motion of up to 60 mph.
The supercells eventually merged into a squall line that raced eastward across Indiana and Ohio in the late afternoon and early evening hours.
It was a perfect setup.
There was plenty of instability (available heat and moisture, or fuel for storms) and strong wind shear (wind that changes direction with height) ahead of the cold front.
The parameters were extremely high for this event, especially for the time of year.
Typically, severe weather season in the Midwest occurs late spring through the summer.
There is a secondary peak of severe weather in the fall.
There were 16 tornadoes that occurred across the NWS Northern Indiana forecast area.
Of those tornadoes, 7 occurred in northeast Indiana and northwest Ohio.
November 17, 2013: 30 tornadoes touched down in the state of Indiana. It is the largest outbreak for November in recorded history and the second largest outbreak in state history for any month. (NWS) pic.twitter.com/EzUU6Cxrdw
— Meteorologist Beverly Perry (@BeverlyPerryWx) November 17, 2020
An EF-1 raced across Kosciusko county with a path length of a little over a mile.
An EF-2 tornado tracked 12 miles across Grant and Wabash counties.
A hog barn was heavily damaged and homes were also damaged.
The NWS surveyed an EF-2 that occurred near Silver Lake.
It was on the ground for over 4 miles in Wabash and Kosciusko counties.
There was a brief EF-0 touchdown in Grant county and an EF-1 touched down in Van Wert county.
An EF-2 scarred just over 11 miles in Paulding and Putnam counties in Ohio.
According to the NWS survey, barns suffered structural damage, with several hay wagons thrown or moved.
Houses were heavily damaged and there was extensive tree damage.
Overall, at least six people were killed during the event and nearly 200 were injured.