Keystone, IN Natural Disasters and Weather Extremes
Hot Rankings
The chance of earthquake damage in Keystone is about the same as Indiana average and is much lower than the national average. The risk of tornado damage in Keystone is lower than Indiana average and is much higher than the national average.
Earthquake Index, #274
| Keystone, IN | 0.04 |
| Indiana | 0.12 |
| U.S. | 1.81 |
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #1
| Keystone, IN | 0.0000 |
| Indiana | 0.0000 |
| U.S. | 0.0023 |
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #499
| Keystone, IN | 240.81 |
| Indiana | 265.56 |
| U.S. | 136.45 |
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 3,759 other weather extremes events within 50 miles of Keystone, IN were recorded from 1950 to 2010. The following is a break down of these events:
| Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
| Avalanche: | 0 | Blizzard: | 5 | Cold: | 6 | Dense Fog: | 3 | Drought: | 3 |
| Dust Storm: | 0 | Flood: | 345 | Hail: | 1,084 | Heat: | 5 | Heavy Snow: | 32 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 15 | Landslide: | 0 | Strong Wind: | 51 |
| Thunderstorm Winds: | 2,046 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 55 | Winter Weather: | 9 |
| Other: | 100 | ||||||||
Volcanos Nearby
No volcano is found in or near Keystone, IN.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Keystone, IN.
No historical earthquake events found in or near Keystone, IN.
Historical Tornado Events
A total of 89 historical tornado events that had recorded magnitude of 2 or above found in or near Keystone, IN.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 0.9 | 1965-04-11 | 4 | 40°34'N / 85°20'W | 40°38'N / 85°03'W | 15.30 Miles | 33 Yards | 1 | 38 | 25.0M | 0 | Wells |
| 9.2 | 1967-12-21 | 2 | 40°44'N / 85°10'W | 0 | 2 | 25K | 0 | Wells | |||
| 10.1 | 1965-04-11 | 4 | 40°33'N / 85°23'W | 40°34'N / 85°20'W | 1.90 Miles | 33 Yards | 0 | 22 | 25.0M | 0 | Blackford |
| 12.4 | 1967-12-21 | 3 | 40°33'N / 85°24'W | 0 | 0 | 25K | 0 | Blackford | |||
| 12.9 | 1974-04-03 | 2 | 40°44'N / 85°15'W | 40°50'N / 85°00'W | 14.40 Miles | 177 Yards | 0 | 0 | 2.5M | 0 | Wells |
| 13.8 | 1965-04-11 | 4 | 40°38'N / 85°03'W | 40°42'N / 84°48'W | 13.70 Miles | 33 Yards | 1 | 37 | 25.0M | 0 | Adams |
| 15.4 | 1974-04-03 | 2 | 40°40'N / 85°30'W | 40°47'N / 85°20'W | 11.50 Miles | 350 Yards | 0 | 0 | 0K | 0 | Huntington |
| 16.3 | 1957-04-05 | 2 | 40°22'N / 85°08'W | 0 | 0 | 3K | 0 | Jay | |||
| 16.7 | 2002-11-10 | 3 | 40°40'N / 84°55'W | 40°44'N / 84°51'W | 5.00 Miles | 200 Yards | 0 | 0 | 125K | 0 | Adams |
| Brief Description: This tornado touched down 2 miles northeast of Berne and moved just northeast of Salem before lifting. An NWS ground survey found F3 damage at times 200 yards wide northeast of Berne. Much of the damage was to extremely well built Amish barns and homes. A mobile home was also destroyed near Salem. | |||||||||||
| 17.3 | 1961-07-28 | 2 | 40°21'N / 85°09'W | 0 | 2 | 25K | 0 | Jay | |||
| 17.5 | 1956-06-24 | 2 | 40°50'N / 85°07'W | 40°52'N / 85°07'W | 2.30 Miles | 33 Yards | 0 | 0 | 3K | 0 | Wells |
| 18.4 | 1980-04-08 | 2 | 40°19'N / 85°14'W | 40°21'N / 85°05'W | 7.90 Miles | 87 Yards | 0 | 0 | 250K | 0 | Jay |
| 18.5 | 1992-07-02 | 2 | 40°50'N / 85°00'W | 1.50 Miles | 50 Yards | 0 | 0 | 250K | 0 | Adams | |
| 19.3 | 1966-06-15 | 2 | 40°25'N / 85°27'W | 0 | 0 | 25K | 0 | Grant | |||
| 21.3 | 1974-04-03 | 4 | 40°18'N / 85°03'W | 40°19'N / 85°02'W | 0 | 0 | 0K | 0 | Jay | ||
| 21.5 | 1956-03-06 | 4 | 40°34'N / 85°34'W | 40°36'N / 85°36'W | 1.90 Miles | 47 Yards | 1 | 31 | 2.5M | 0 | Grant |
| 22.0 | 1955-03-11 | 2 | 40°18'N / 85°02'W | 0 | 0 | 25K | 0 | Randolph | |||
| 22.2 | 1992-07-12 | 2 | 40°41'N / 84°45'W | 40°44'N / 84°48'W | 3.00 Miles | 73 Yards | 0 | 0 | 250K | 0 | Mercer |
| 22.3 | 1968-04-14 | 2 | 40°22'N / 85°28'W | 0 | 0 | 3K | 0 | Delaware | |||
| 23.6 | 1965-04-11 | 4 | 40°42'N / 84°48'W | 40°44'N / 84°42'W | 5.10 Miles | 33 Yards | 2 | 24 | 2.5M | 0 | Mercer |
| 23.7 | 1986-08-26 | 2 | 40°54'N / 85°01'W | 40°55'N / 84°56'W | 5.00 Miles | 3 Yards | 0 | 2 | 2.5M | 0 | Adams |
| 23.8 | 1967-12-21 | 3 | 40°29'N / 85°36'W | 0 | 1 | 250K | 0 | Grant | |||
| 25.0 | 2002-09-20 | 2 | 40°17'N / 85°32'W | 40°22'N / 85°26'W | 11.00 Miles | 100 Yards | 0 | 0 | 3.0M | 15K | Delaware |
| Brief Description: One of Indiana's longest tracking tornados formed along a squall line on the morning of September 20. The tornado touched down near Ellettsville in Monroe county and then remained on the ground for 112 miles before lifting in Blackford county. The tornado produced F3 damage at its strongest points. Nearly 100 single family homes were destroyed, along with several mobile homes. Some apartments were also destroyed. Many businesses and hundreds of homes received damage. Several counties were declared disaster areas. | |||||||||||
| 25.4 | 1967-07-01 | 2 | 40°53'N / 85°29'W | 0.50 Mile | 300 Yards | 0 | 2 | 25K | 0 | Huntington | |
| 25.4 | 1985-06-15 | 2 | 40°50'N / 85°33'W | 0.30 Mile | 33 Yards | 0 | 0 | 25K | 0 | Huntington | |
| 25.6 | 1968-05-16 | 3 | 40°49'N / 85°39'W | 40°58'N / 85°18'W | 20.80 Miles | 33 Yards | 0 | 3 | 3K | 0 | Huntington |
| 26.5 | 1965-04-23 | 2 | 40°33'N / 85°51'W | 40°33'N / 85°30'W | 18.20 Miles | 33 Yards | 0 | 0 | 25K | 0 | Grant |
| 26.6 | 1965-04-11 | 4 | 40°30'N / 85°52'W | 40°31'N / 85°28'W | 20.90 Miles | 880 Yards | 8 | 275 | 250.0M | 0 | Grant |
| 27.7 | 1974-04-03 | 4 | 40°06'N / 85°14'W | 40°18'N / 85°03'W | 16.70 Miles | 1400 Yards | 1 | 12 | 0K | 0 | Randolph |
| 28.6 | 1963-04-17 | 2 | 40°58'N / 85°25'W | 41°02'N / 85°13'W | 11.10 Miles | 33 Yards | 0 | 0 | 250K | 0 | Huntington |
| 28.6 | 1953-04-09 | 3 | 40°17'N / 85°52'W | 40°19'N / 85°14'W | 33.30 Miles | 33 Yards | 0 | 0 | 2.5M | 0 | Madison |
| 29.4 | 1961-09-24 | 3 | 40°11'N / 85°13'W | 40°12'N / 84°49'W | 20.90 Miles | 33 Yards | 0 | 0 | 250K | 0 | Randolph |
| 29.9 | 1968-05-16 | 3 | 40°58'N / 85°18'W | 41°06'N / 85°00'W | 17.90 Miles | 33 Yards | 0 | 0 | 0K | 0 | Allen |
| 30.5 | 1954-06-17 | 2 | 40°11'N / 85°22'W | 0 | 0 | 0K | 0 | Delaware | |||
| 30.7 | 1953-03-18 | 2 | 41°02'N / 85°08'W | 41°03'N / 85°04'W | 1.90 Miles | 33 Yards | 0 | 0 | 25K | 0 | Allen |
| 30.8 | 1957-04-05 | 2 | 40°11'N / 85°23'W | 0 | 0 | 25K | 0 | Delaware | |||
| 30.9 | 1961-09-24 | 3 | 40°08'N / 85°19'W | 40°11'N / 85°13'W | 5.70 Miles | 33 Yards | 0 | 0 | 250K | 0 | Shelby |
| 32.0 | 2006-03-31 | 2 | 40°45'N / 84°37'W | 40°46'N / 84°35'W | 2.00 Miles | 300 Yards | 0 | 0 | 1.0M | 0 | Van Wert |
| Brief Description: The tornado was likely produced as the result of a line of thunderstorms overtaking an isolated supercell thunderstorm ahead of the line. The circulation which produced the tornado intensified shortly after the merger of the line and isolated supercell. The tornado developed near the intersection of Burris Road and Walnut Grove Church Road about 1 mile south of Ohio City. The tornado tracked to the east-northeast for roughly 2 miles before dissipating near Greenville Rd about 2 miles east of Ohio City. Damage along the first half of the tornado track was consistent with F2 intensity, with winds estimated at 140-150 mph and an initial path width of about 300 yards. In this area, 3 barns were completely destroyed, with another 5 sustaining damage. A garage was destroyed, and several houses received damage including roof, siding, and windows. Several grain bins were also damaged, along with other miscellaneous vehicle and property damage, including several tractors, a combine and other farm implements. Damage along the second half of the tornado track was consistent with F1 intensity, with the path width narrowing to about 25 yards. Several buildings sustained roof, siding, and window damage, with several instances of trailer and vehicle damage. | |||||||||||
| 32.0 | 1974-04-03 | 2 | 40°29'N / 85°52'W | 40°34'N / 85°41'W | 10.90 Miles | 350 Yards | 0 | 12 | 0K | 0 | Grant |
| 32.3 | 1992-10-08 | 2 | 41°04'N / 85°08'W | 2.00 Miles | 20 Yards | 0 | 9 | 250K | 0 | Allen | |
| 32.3 | 2001-05-26 | 2 | 41°04'N / 85°08'W | 41°04'N / 85°08'W | 3.00 Miles | 300 Yards | 0 | 3 | 6.5M | 0 | Allen |
| Brief Description: Tornado touched down as as F1 at the Northcrest shopping mall on the northwest side of Fort Wayne. Damaged to mall and surrounding businesses. Cars flipped over in parking lot with one person injured. Tornado then briefly lifted and touched down one half mile to the northeast as an F2. Extensive damage to the Papermill subdivision with F2 damage to two homes, an office complex, a retirement home, and a steeple torn off a church. One injury at the retirement home and one in the subdivision. Tornado proceeded northeast with F0-F1 damage to the Concordia Seminary and adjacent structures before the tornado lifted on the northeast side of the Seminary grounds. Synoptic and mesoscale conditions and event summary for Saturday May 26th, 2001 A low topped supercell thunderstorm developed in Cass county Indiana, and moved northeast through the Fort Wayne metropolitan area and into northwest Ohio. This thunderstorm produced several tornadoes and numerous funnel clouds. The wind field was favorable for rotating storms on with strong veering in the KIWX Wind Profile. This was on the south side of a unseasonably cold closed upper low in the mid and upper levels. Surface temperatures in the lower 50s, and scattered showers were against strong thunderstorm development. However sunshine over central Indiana allowed enough heating for a thunderstorm to develop and quickly began rotating. | |||||||||||
| 32.5 | 1968-05-16 | 3 | 40°44'N / 85°51'W | 40°49'N / 85°39'W | 11.60 Miles | 33 Yards | 1 | 12 | 250K | 0 | Wabash |
| 33.1 | 1992-02-18 | 4 | 40°44'N / 84°34'W | 2.80 Miles | 40 Yards | 0 | 6 | 2.5M | 0 | Van Wert | |
| 33.1 | 1950-07-19 | 2 | 41°04'N / 85°05'W | 41°05'N / 85°05'W | 1.10 Miles | 100 Yards | 0 | 0 | 0K | 0 | Allen |
| 33.3 | 1950-07-19 | 2 | 40°48'N / 84°37'W | 40°49'N / 84°35'W | 0 | 0 | 0K | 0 | Van Wert | ||
| 34.1 | 1961-07-28 | 3 | 40°11'N / 84°49'W | 40°12'N / 84°48'W | 0 | 0 | 3K | 0 | Randolph | ||
| 34.7 | 1965-04-11 | 4 | 40°44'N / 84°42'W | 40°46'N / 84°23'W | 16.50 Miles | 33 Yards | 0 | 4 | 250K | 0 | Van Wert |
| 35.3 | 1974-04-03 | 4 | 40°05'N / 85°15'W | 40°06'N / 85°14'W | 0 | 0 | 0K | 0 | Delaware | ||
| 35.5 | 1961-09-24 | 3 | 40°07'N / 85°33'W | 40°08'N / 85°19'W | 12.00 Miles | 33 Yards | 0 | 1 | 250K | 0 | Delaware |
| 35.8 | 2002-11-10 | 4 | 40°47'N / 84°46'W | 40°59'N / 84°26'W | 21.60 Miles | 880 Yards | 2 | 17 | 30.0M | 0 | Van Wert |
| Brief Description: This tornado touched down in the southwest corner of Van Wert County about 4 miles northeast of Willshire and moved northeast across the western portion of the city of Van Wert, and then crossed U.S. 30 and continued northeast before exiting the county about 7 miles east of Scott. NWS ground and aerial surveys showed the tornado quickly intensified to F4 about 5 miles southwest of the city of Van Wert near Zook road, where a 75 year old male was killed in his home. The tornado continued moving northeast as an F4 into the city of Van Wert, were it hit the Twin Cinemas and the Vision Industrial Park. At this point the tornado was about one half mile wide. 60 persons watching a movie in the cinemas, mostly children, took shelter before the tornado hit, with only minor injuries. Vehicles from the parking lot were thrown into the seats where the children had been sitting. An 18 year old male driving past the cinemas was thrown from his vehicle and killed. The tornado then destroyed five industries in the Vision Industrial Park, before moving north of U.S. 30, producing F4 damage to additional businesses and homes. The tornado weakened to F3 as it moved northeast and crossed into Paulding county. 164 homes were damaged in Van Wert county, and 43 were totally destroyed. 27 businesses sustained damage, with 5 totally destroyed in Vision Park. Three county engineer buildings were destroyed, with one house used by a township. Total damage in Van Wert county was near 30 million dollars. M18VE, M75PH On Sunday, November 10th, 2002 a cold front trailed from a deep surface low over northern Lake Michigan into central Missouri. Ahead of the cold front the KILN (Wilmington, OH) 1200 UTC sounding showed an unstable airmass with CAPE (Convectively Available Potential Energy) of 1148 J/kg and a Storm Relative Helicity (SRH) of 408 m/s2. Another sounding at 1800 UTC showed CAPE had increased on a modified sounding to 1313 J/kg, with SRH increasing to 587 m/s2. A broken squall line developed from Indianapolis to Fort Wayne Indiana and Defiance Ohio with the cold front. A small low topped supercell developed ahead of the line over Blackford county Indiana and was moving northeast at 50 MPH. This parent supercell produced 3 seperate tornadoes in Indiana (see StormData, Indiana, Northeast for more information) before crossing into Ohio. There the supercell intensified and a tornado touched down in Van Wert County Ohio, reaching F4 in strength as it reached the city of Van Wert. The tornado then moved northeast with a total path length of 53 miles, producing F3 damage in Paulding and Putnam counties, and F0 damage in Defiance and Henry counties. | |||||||||||
| 36.2 | 1965-11-26 | 3 | 40°06'N / 85°23'W | 0.50 Mile | 33 Yards | 0 | 0 | 250K | 0 | Delaware | |
| 37.1 | 1974-04-03 | 4 | 40°03'N / 85°16'W | 40°05'N / 85°15'W | 1.30 Miles | 100 Yards | 0 | 0 | 25.0M | 0 | Henry |
| 38.0 | 1967-02-15 | 2 | 40°03'N / 85°08'W | 0.50 Mile | 10 Yards | 0 | 0 | 3K | 0 | Randolph | |
| 38.1 | 1956-03-06 | 2 | 40°35'N / 85°54'W | 0 | 0 | 3K | 0 | Miami | |||
| 38.5 | 1965-07-16 | 2 | 41°09'N / 85°25'W | 41°06'N / 85°26'W | 2.70 Miles | 33 Yards | 0 | 0 | 25K | 0 | Whitley |
| 39.0 | 1955-03-11 | 2 | 40°12'N / 84°48'W | 40°12'N / 84°30'W | 15.60 Miles | 500 Yards | 0 | 2 | 250K | 0 | Randolph |
| 39.1 | 1986-03-10 | 3 | 40°02'N / 84°59'W | 40°06'N / 84°52'W | 7.60 Miles | 440 Yards | 0 | 0 | 25.0M | 0 | Randolph |
| 39.5 | 1955-05-28 | 2 | 40°32'N / 85°59'W | 40°35'N / 85°52'W | 6.80 Miles | 100 Yards | 0 | 3 | 2.5M | 0 | Howard |
| 39.8 | 1961-07-28 | 3 | 40°12'N / 84°48'W | 40°14'N / 84°25'W | 20.20 Miles | 200 Yards | 0 | 2 | 250K | 0 | Darke |
| 40.6 | 1963-04-17 | 2 | 40°59'N / 85°46'W | 41°07'N / 85°35'W | 13.00 Miles | 33 Yards | 0 | 0 | 250K | 0 | Wabash |
| 40.7 | 1974-04-03 | 2 | 40°23'N / 85°58'W | 40°29'N / 85°52'W | 8.30 Miles | 350 Yards | 0 | 0 | 2.5M | 0 | Howard |
| 41.3 | 1963-03-19 | 2 | 40°03'N / 84°52'W | 2.50 Miles | 300 Yards | 0 | 0 | 250K | 0 | Randolph | |
| 41.7 | 1964-04-28 | 2 | 40°17'N / 85°51'W | 0 | 0 | 0K | 0 | Madison | |||
| 42.1 | 1957-04-05 | 2 | 40°03'N / 85°31'W | 0 | 1 | 25K | 0 | Henry | |||
| 42.4 | 1998-06-11 | 3 | 40°24'N / 86°04'W | 40°34'N / 85°52'W | 12.50 Miles | 800 Yards | 0 | 8 | 5.0M | 0 | Howard |
| Brief Description: This strong tornado originated from a supercell which initially produced several funnel clouds beginning northeast of Crawfordsville, passing over Frankfort to Kokomo's south side. This supercell finally produced its tornado just south of Kokomo near Oakford and Center. The tornado damaged a school near Center and caused its most extensive damage in Greentown where over two dozen buildings were destroyed and nearly 200 buildings were damaged. The tornado continued tracking ENE along the N & W train tracks and into WC Grant County west of Swayzee. | |||||||||||
| 42.6 | 1955-11-15 | 3 | 40°06'N / 84°38'W | 40°06'N / 84°46'W | 14.40 Miles | 400 Yards | 0 | 7 | 25K | 0 | Randolph |
| 42.6 | 1955-11-15 | 3 | 40°06'N / 84°46'W | 40°06'N / 84°38'W | 6.60 Miles | 300 Yards | 0 | 1 | 2.5M | 0 | Darke |
| 42.6 | 1961-03-06 | 3 | 40°28'N / 85°58'W | 0 | 0 | 25K | 0 | Howard | |||
| 42.7 | 1963-05-27 | 2 | 40°07'N / 84°40'W | 1.00 Mile | 33 Yards | 0 | 0 | 25K | 0 | Darke | |
| 42.8 | 2002-09-20 | 2 | 40°02'N / 85°31'W | 40°03'N / 85°32'W | 6.00 Miles | 100 Yards | 0 | 0 | 2.0M | 10K | Henry |
| Brief Description: A tornado formed along a squall line. Ten single family homes sustained major damage. As the tornado passed through a trailer park, 30 trailer homes sustained major damage. | |||||||||||
| 42.8 | 1954-03-28 | 2 | 40°07'N / 85°41'W | 1.50 Miles | 53 Yards | 0 | 2 | 2.5M | 0 | Madison | |
| 43.5 | 2000-06-14 | 2 | 41°02'N / 85°47'W | 41°03'N / 85°45'W | 1.00 Mile | 100 Yards | 0 | 0 | 200K | 10K | Kosciusko |
| Brief Description: The last farm was hit when the tornado was located just west of 1300 S and 400 E in Kosciusko County. Two barns, a garage, and several outbuildings were completely destroyed with some of the foundations swept clean. The house and two cars were severely damaged from large pieces of flying debris. A 17 foot boat was thrown about 20 yards and severely damaged. Most of the trees on this farm were destroyed. Debris from this farm was carried up to one half mile away as the tornado crossed 400 E and then lifted back into the clouds. Synoptic and mesoscale conditions for June 14th... A significant mid-level shortwave trough was located over Iowa on the morning of June 14th with an outflow dominated squall line across western Illinois. Rapid destabilization ensued later in the morning across eastern Illinois and northern Indiana with CAPES to 3500 j/kg by early afternoon. VAD wind profiles showed 850 millibar winds in excess of 50 knots in advance of the upper trough by afternoon and as storms developed along the left over outflow boundary across Illinois... they quickly became severe and organized into a large bow echo and moved quickly eastward into northern Indiana causing extensive wind damage. By late afternoon... a short segmented squall line developed just ahead of this bow echo squall line and extended from a St. Joseph to Fulton county line. Along the southern end of this line... an embedded tornadic supercell developed and interacted with a left over storm-scale outflow boundary to produce the Wabash/Kosciusko and DeKalb county tornadoes. The lack of significant low level shear likely prevented a much larger and more widespread tornado event especially across Whitley and Allen counties where several funnel clouds were captured on film but failed to touch down. | |||||||||||
| 43.7 | 2000-06-14 | 2 | 41°01'N / 85°48'W | 41°03'N / 85°46'W | 4.00 Miles | 200 Yards | 0 | 3 | 700K | 30K | Wabash |
| Brief Description: The tornado touched down again, hitting a farm at 1300 N and 100 W. A man suffered a broken leg here. Two hog sheds and a large grain bin were destroyed. A 200-yard swath of trees were uprooted to the northeast along the railroad tracks. Another man suffered back and chest injuries as the tornado continued to the intersection of 1300 N and Meridian Road and demolished the barn in which he stood. A 5th wheel camper was rolled 50 yards from its original position destroying it. The tornado continued to the next farm just south of 1400 N and 100 E. The barn was destroyed and the house suffered moderate damage, primarily from flying tree debris. The tornado snapped a utility pole, which fell on an 18-year-old boy, breaking his leg. Many trees and power lines were downed along the way. From here, the tornado continued until the Wabash/Kosciusko county line. Synoptic and mesoscale conditions for June 14th... A significant mid-level shortwave trough was located over Iowa on the morning of June 14th with an outflow dominated squall line across western Illinois. Rapid destabilization ensued later in the morning across eastern Illinois and northern Indiana with CAPES to 3500 j/kg by early afternoon. VAD wind profiles showed 850 millibar winds in excess of 50 knots in advance of the upper trough by afternoon and as storms developed along the left over outflow boundary across Illinois... they quickly became severe and organized into a large bow echo and moved quickly eastward into northern Indiana causing extensive wind damage. By late afternoon... a short segmented squall line developed just ahead of this bow echo squall line and extended from a St. Joseph to Fulton county line. Along the southern end of this line... an embedded tornadic supercell developed and interacted with a left over storm-scale outflow boundary to produce the Wabash/Kosciusko and DeKalb county tornadoes. The lack of significant low level shear likely prevented a much larger and more widespread tornado event especially across Whitley and Allen counties where several funnel clouds were captured on film but failed to touch down. | |||||||||||
| 43.7 | 1997-07-02 | 2 | 40°06'N / 85°41'W | 40°06'N / 85°41'W | 5.00 Miles | 110 Yards | 0 | 0 | 600K | 10K | Madison |
| Brief Description: The same supercell that produced the weak tornado in Hamilton county also produced this tornado. This strong tornado initially began as three funnels which merged to one tornadoabout when it touched down on the southwest side of Anderson near exit 22 of Interstate 69. The tornado proceeded east-southeast for 5 miles, damaging 35 homes, five with major damage, and also one business. Over 50 trees were blown down, numerous power lines were blown down, and two grain silos were tipped over before the tornado lifted near Emporia. Due to advance warning and good visibility that day, everyone in the path of the tornado were awareof its approach, and was able to seek shelter and escape injury. | |||||||||||
| 43.8 | 1980-06-07 | 2 | 40°22'N / 85°57'W | 1 | 5 | 0K | 0 | Tipton | |||
| 44.3 | 2002-09-20 | 2 | 39°56'N / 85°50'W | 40°16'N / 85°34'W | 26.00 Miles | 150 Yards | 0 | 2 | 8.0M | 25K | Madison |
| Brief Description: One of Indiana's longest tracking tornados formed along a squall line on the morning of September 20. The tornado touched down near Ellettsville in Monroe county and then remained on the ground for 112 miles before lifting in Blackford county. The tornado produced F3 damage at its strongest points. Nearly 100 single family homes were destroyed, along with several mobile homes. Some apartments were also destroyed. Many businesses and hundreds of homes received damage. Several counties were declared disaster areas. | |||||||||||
| 44.7 | 1956-03-06 | 2 | 40°22'N / 85°58'W | 0 | 0 | 25K | 0 | Tipton | |||
| 44.8 | 1998-06-11 | 2 | 40°01'N / 85°30'W | 39°58'N / 85°26'W | 5.50 Miles | 200 Yards | 0 | 0 | 5K | 0 | Henry |
| Brief Description: Second tornado from supercell began in NC Hancock County and tracked ENE into extreme SE Madison County and then ended in NW Henry county NW of New Castle. This tornado traversed mainly open country causing mostly tree damageon farms along the path. This same supercell will produce two more tornadoes further east in Henry and Randolph Counties. These tornadoes will be described below. | |||||||||||
| 46.8 | 1972-05-14 | 4 | 39°59'N / 85°35'W | 40°00'N / 85°33'W | 0 | 1 | 25K | 0 | Henry | ||
| 47.2 | 2000-06-14 | 2 | 41°17'N / 85°09'W | 41°17'N / 85°07'W | 3.00 Miles | 400 Yards | 0 | 0 | 200K | 0 | De Kalb |
| Brief Description: The tornado touched down on CR 64, one half mile west of Indian Springs Camp Ground. Trees and power lines were knocked down and many were snapped and uprooted. Extensive roof damage occurred to houses in the area. A barn was damaged with much of its roof torn off and outbuildings were either damaged or destroyed. The tornado then lifted back into its parent cloud. Synoptic and mesoscale conditions for June 14th... A significant mid-level shortwave trough was located over Iowa on the morning of June 14th with an outflow dominated squall line across western Illinois. Rapid destabilization ensued later in the morning across eastern Illinois and northern Indiana with CAPES to 3500 j/kg by early afternoon. VAD wind profiles showed 850 millibar winds in excess of 50 knots in advance of the upper trough by afternoon and as storms developed along the left over outflow boundary across Illinois... they quickly became severe and organized into a large bow echo and moved quickly eastward into northern Indiana causing extensive wind damage. By late afternoon... a short segmented squall line developed just ahead of this bow echo squall line and extended from a St. Joseph to Fulton county line. Along the southern end of this line... an embedded tornadic supercell developed and interacted with a left over storm-scale outflow boundary to produce the Wabash/Kosciusko and DeKalb county tornadoes. The lack of significant low level shear likely prevented a much larger and more widespread tornado event especially across Whitley and Allen counties where several funnel clouds were captured on film but failed to touch down. | |||||||||||
| 47.9 | 2007-04-11 | 2 | 40°10'N / 85°57'W | 40°15'N / 85°54'W | 4.00 Miles | 100 Yards | 0 | 0 | 150K | 0K | Hamilton |
| Brief Description: EVENT NARRATIVE: This tornado touched down at 7:25 P.M. EDT, as reported by trained spotters, about 3 miles east of Arcadia . The tornado continued a path to the northeast, lifting around 7:30 P.M. EDT. An EF2 rating was assigned to this tornado given the significant destruction of a barn, and the tornado moving a dual wheel pickup truck/trailer rig nearly fifteen feet. Winds were estimated near 120 mph. Several other outbuildings, houses, barns, vehicles, trees, sheds, and garages suffered damage as well. EPISODE NARRATIVE: Severe thunderstorms moved through central Indiana on the afternoon of 11 April 2007. The storms produced tornadoes, large hail, and damaging winds. The National Weather Service Indianapolis damage assessment teams confirmed four tornadoes in central Indiana. These tornadoes occurred from mini supercells. | |||||||||||
| 48.1 | 1962-06-18 | 3 | 39°55'N / 85°21'W | 0 | 0 | 250K | 0 | Henry | |||
| 48.6 | 1954-05-31 | 2 | 40°52'N / 86°02'W | 0 | 0 | 3K | 0 | Miami | |||
| 48.7 | 1965-04-11 | 4 | 40°25'N / 86°18'W | 40°30'N / 85°52'W | 23.30 Miles | 880 Yards | 17 | 560 | 250.0M | 0 | Howard |
| 49.2 | 1958-06-13 | 2 | 39°58'N / 85°36'W | 0 | 1 | 25K | 0 | Madison | |||
| 49.2 | 1956-04-03 | 3 | 40°59'N / 85°58'W | 1.50 Miles | 70 Yards | 0 | 0 | 25K | 0 | Kosciusko | |
| 49.6 | 1998-06-11 | 2 | 39°58'N / 85°39'W | 39°58'N / 85°35'W | 3.00 Miles | 300 Yards | 0 | 0 | 5K | 0 | Madison |
| Brief Description: Tornado from NE Hancock Co traversed SE Madison Co causing mainly tree damage. | |||||||||||
| 49.8 | 1967-05-28 | 2 | 39°54'N / 84°57'W | 0.50 Mile | 33 Yards | 0 | 0 | 25K | 0 | Wayne | |
| 50.0 | 1972-05-14 | 4 | 39°57'N / 85°41'W | 39°59'N / 85°35'W | 5.40 Miles | 200 Yards | 0 | 1 | 25K | 0 | Madison |
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.