Henderson County Natural Disasters and Weather Extremes
Hot Illinois Rankings
The chance of earthquake damage in Henderson County is lower than Illinois average and is much lower than the national average. The risk of tornado damage in Henderson County is lower than Illinois average and is higher than the national average.
Earthquake Index, #100
| Henderson County | 0.01 |
| Illinois | 0.24 |
| 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
| Henderson County | 0.0000 |
| Illinois | 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, #80
| Henderson County | 185.13 |
| Illinois | 220.15 |
| 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 13,912 other weather extremes events within 50 miles of Henderson County 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: | 48 | Cold: | 110 | Dense Fog: | 86 | Drought: | 44 |
| Dust Storm: | 0 | Flood: | 1,565 | Hail: | 3,852 | Heat: | 87 | Heavy Snow: | 143 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 96 | Landslide: | 1 | Strong Wind: | 169 |
| Thunderstorm Winds: | 6,361 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 260 | Winter Weather: | 322 |
| Other: | 768 | ||||||||
Volcanos Nearby
No volcano is found in or near Henderson County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Henderson County.
No historical earthquake events found in or near Henderson County.
Historical Tornado Events
A total of 79 historical tornado events that had recorded magnitude of 2 or above found in or near Henderson County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 5.3 | 1967-01-24 | 2 | 40°51'N / 90°56'W | 40°55'N / 90°51'W | 5.70 Miles | 77 Yards | 0 | 0 | 25K | 0 | Henderson |
| 15.8 | 1967-01-24 | 2 | 40°42'N / 91°14'W | 40°45'N / 91°12'W | 3.00 Miles | 200 Yards | 0 | 4 | 250K | 0 | Lee |
| 16.4 | 1966-05-23 | 2 | 40°58'N / 91°11'W | 41°01'N / 91°07'W | 4.10 Miles | 100 Yards | 0 | 0 | 250K | 0 | Des Moines |
| 16.9 | 1974-05-13 | 2 | 41°00'N / 91°09'W | 1.00 Mile | 50 Yards | 0 | 0 | 250K | 0 | Des Moines | |
| 17.9 | 1999-04-05 | 2 | 40°38'N / 90°41'W | 40°41'N / 90°39'W | 3.00 Miles | 100 Yards | 0 | 0 | 3K | 0 | Warren |
| Brief Description: The tornado first touched down along Highway 9 southwest of Good Hope snapping several trees. From there the tornado moved northeast across Town Fork Creek damaging several trees in a densely wooded area and snapping two large trees along a county road. Damage along this path was rated F0. As the tornado continued northeast it moved through plowed farmland and approached a homestead along north-south county road west of Good Hope. The house sustained no structural damage, but several outbuildings suffered substantial damage. An older concrete block hog house was destroyed while the roof and sides of a new machine shed were torn off. A grain bin was blown about 500 yards from the home site into a neighboring field. Damage along this path was rated F2. For the next several miles the tornado tracked through plowed farmland snapping a few trees and blowing over several fences. The tornado then approached US Highway 67 just south of the McDonough-Warren County line. The tornado snapped two very large oak trees at a homestead with one landing on the house. It continued on a northeast track snapping several trees and damaging a roof on a homestead just south of the county line. Damage along this path was rated F1. The tornado then crossed from McDonough county into Warren county just east of highway 67. As the tornado continued northeast it hit a group of farm buildings north of the county line. Three of the buildings sustained major damage. A corn crib was blown on it's side while the roof of a barn and shed were destroyed. Damage along this path was rated F1. The tornado tracked into the south side of Swan Creek destroying a grain elevator. Just northeast of the elevator the walls of a concrete block machine shop were blown in and the building was completely destroyed. As is continued northeast it toppled several trees and antennae. Other damage in Swan Creek included two porches torn off homesteads and two roofs lifted, but not pulled off homesteads. Damage along this path was rated F2. The tornado continued northeast and lifted just north of town. | |||||||||||
| 18.0 | 1963-04-18 | 2 | 41°02'N / 90°45'W | 0 | 0 | 25K | 0 | Warren | |||
| 19.2 | 1965-08-25 | 3 | 40°52'N / 91°18'W | 3.00 Miles | 100 Yards | 0 | 1 | 250K | 0 | Des Moines | |
| 19.2 | 1977-05-04 | 2 | 40°52'N / 91°18'W | 2.00 Miles | 10 Yards | 0 | 0 | 25K | 0 | Des Moines | |
| 19.6 | 1959-09-26 | 2 | 40°54'N / 90°38'W | 40°57'N / 90°33'W | 4.90 Miles | 300 Yards | 1 | 0 | 250K | 0 | Warren |
| 19.8 | 1967-01-24 | 3 | 40°40'N / 91°19'W | 40°42'N / 91°14'W | 4.30 Miles | 300 Yards | 1 | 6 | 250K | 0 | Lee |
| 20.8 | 1999-04-05 | 2 | 40°32'N / 90°43'W | 40°37'N / 90°41'W | 6.40 Miles | 100 Yards | 0 | 0 | 6K | 0 | Mcdonough |
| Brief Description: The tornado first touched down along Highway 9 southwest of Good Hope snapping several trees. From there the tornado moved northeast across Town Fork Creek damaging several trees in a densely wooded area and snapping two large trees along a county road. Damage along this path was rated F0. As the tornado continued northeast it moved through plowed farmland and approached a homestead along north-south county road west of Good Hope. The house sustained no structural damage, but several outbuildings suffered substantial damage. An older concrete block hog house was destroyed while the roof and sides of a new machine shed were torn off. A grain bin was blown about 500 yards from the home site into a neighboring field. Damage along this path was rated F2. For the next several miles the tornado tracked through plowed farmland snapping a few trees and blowing over several fences. The tornado then approached US Highway 67 just south of the McDonough-Warren County line. The tornado snapped two very large oak trees at a homestead with one landing on the house. It continued on a northeast track snapping several trees and damaging a roof on a homestead just south of the county line. Damage along this path was rated F1. The tornado then crossed from McDonough county into Warren county just east of highway 67. As the tornado continued northeast it hit a group of farm buildings north of the county line. Three of the buildings sustained major damage. A corn crib was blown on it's side while the roof of a barn and shed were destroyed. Damage along this path was rated F1. The tornado tracked into the south side of Swan Creek destroying a grain elevator. Just northeast of the elevator the walls of a concrete block machine shop were blown in and the building was completely destroyed. As is continued northeast it toppled several trees and antennae. Other damage in Swan Creek included two porches torn off homesteads and two roofs lifted, but not pulled off homesteads. Damage along this path was rated F2. The tornado continued northeast and lifted just north of town. | |||||||||||
| 20.9 | 1960-03-29 | 2 | 40°40'N / 91°20'W | 40°46'N / 91°18'W | 6.60 Miles | 200 Yards | 0 | 0 | 3K | 0 | Lee |
| 21.7 | 1967-04-30 | 2 | 40°38'N / 91°19'W | 40°40'N / 91°16'W | 2.30 Miles | 400 Yards | 0 | 0 | 250K | 0 | Lee |
| 21.9 | 1957-05-21 | 3 | 40°30'N / 90°48'W | 40°37'N / 90°35'W | 13.70 Miles | 120 Yards | 0 | 0 | 250K | 0 | Mcdonough |
| 24.4 | 1998-06-18 | 2 | 41°06'N / 90°48'W | 41°11'N / 90°43'W | 6.00 Miles | 880 Yards | 0 | 0 | 110K | 0 | Mercer |
| Brief Description: The tornado damaged several rural home sites. Northeast of Seaton damage was noted to farm buildings and a silo. South of Aledo seven power lines poles were snapped, and a farmhouse 4 miles west of Aledo was destroyed. The tornado also damaged or destroyed farm buildings, roofs and chimneys south of Aledo. | |||||||||||
| 27.8 | 1954-04-30 | 2 | 40°40'N / 91°30'W | 40°48'N / 91°25'W | 9.90 Miles | 200 Yards | 0 | 1 | 250K | 0 | Lee |
| 28.1 | 1974-06-14 | 3 | 40°56'N / 90°24'W | 40°43'N / 90°24'W | 14.90 Miles | 33 Yards | 0 | 1 | 0K | 0 | Knox |
| 30.1 | 1964-04-21 | 3 | 40°25'N / 90°44'W | 40°30'N / 90°29'W | 14.10 Miles | 17 Yards | 0 | 0 | 25K | 0 | Mcdonough |
| 30.3 | 1959-09-27 | 2 | 40°28'N / 90°36'W | 40°33'N / 90°27'W | 9.40 Miles | 200 Yards | 0 | 1 | 250K | 0 | Mcdonough |
| 31.2 | 1974-06-14 | 3 | 41°18'N / 90°35'W | 40°56'N / 90°24'W | 26.90 Miles | 440 Yards | 0 | 1 | 0K | 0 | Mercer |
| 31.8 | 1974-04-13 | 2 | 40°18'N / 90°55'W | 40°26'N / 90°41'W | 15.20 Miles | 500 Yards | 0 | 0 | 250K | 0 | Mcdonough |
| 32.1 | 1967-01-24 | 2 | 41°12'N / 91°17'W | 2.00 Miles | 150 Yards | 0 | 1 | 25K | 0 | Louisa | |
| 33.0 | 1970-05-09 | 2 | 41°13'N / 91°17'W | 1.00 Mile | 100 Yards | 0 | 0 | 25K | 0 | Louisa | |
| 33.1 | 1977-05-04 | 2 | 40°58'N / 91°33'W | 41°00'N / 91°31'W | 0 | 1 | 250K | 0 | Henry | ||
| 33.5 | 2003-05-10 | 2 | 40°32'N / 91°35'W | 40°38'N / 91°25'W | 11.50 Miles | 200 Yards | 0 | 0 | 1.0M | 0 | Lee |
| Brief Description: Tornado developed 1.5 miles west of Argyle at 1728 CST and moved northeast for 11.5 miles before dissipating 1.3 miles North of Viele at 1747 CST. A maximum rating of F2 was noted just west of Argyle where a house was turned approximately 120 degrees and moved 25 to 40 feet off its foundation. Three teens ran inside the house and sought shelter, 2 in an interior bathroom and the other under the stairs. Three large trees on the back edge of the property stopped the house and likely prevented the teens from being injured or killed. The remainder of the damage path saw F0 and F1 damage. | |||||||||||
| 34.6 | 1977-05-04 | 2 | 40°47'N / 91°36'W | 2.00 Miles | 60 Yards | 0 | 0 | 250K | 0 | Lee | |
| 34.7 | 2007-06-01 | 3 | 41°16'N / 91°11'W | 41°19'N / 91°07'W | 6.00 Miles | 774 Yards | 0 | 1 | 1.0M | 0K | Louisa |
| Brief Description: EVENT NARRATIVE: The tornado touched down on the southern edge of Grandview. It moved through the center of town intensifying in rural areas as it approached the county line. In Grandview, several homes sustained severe damage. North of Grandview, about 1.5 miles, a farm house was completely destroyed. Other homes and trees along the path sustained damage. The tornado crossed the Louisa-Muscatine county line just south of Fruitland, IA. EPISODE NARRATIVE: A line of thunderstorms pivoted northeast into parts of southeast Iowa during the mid-morning hours of June 1st. Much of the area was just breaking out of a blanket of dense fog where visibilities dropped to less than a quarter mile. Dew point temperatures were in the middle 60s to around 70 degrees. The line of storms appeared to become more broken through the late morning hours, while the area from Iowa City to Waterloo appeared to stratify out into a large area of showers. Just before 12:00 pm CDT, rapid intensification of storm cells on the southeast end of the original line occurred as it moved into northern portions of Louisa County. A tornado touched down just south of Grandview, IA and moved northeast through Fruitland, IA and on to the southwest parts of Muscatine, IA. The tornado then lifted and as the storm cell continued to move northeast across Muscatine County. The super-cell re-intensified as it entered the southeast part of Cedar County just before 1 pm producing a brief tornado near Wilton, IA. The storm then moved across northwest parts of Scott County and Clinton County producing damaging wind gusts and large hail. The super-cell continued northeast into Jackson County producing a tornado near Bellevue around 2:30 pm, which moved across the Mississippi River into Jo Daviess County before lifting. The storm produced yet another tornado just south of Scales Mound, IL around 3:15 pm before moving into southwest Wisconsin and dissipating. During the early afternoon hours, additional storms strengthened on the south end of the original line of storms, which went on to produce wind damage and large hail as they moved through northwest Illinois through the late afternoon hours. | |||||||||||
| 35.0 | 1973-04-21 | 2 | 41°16'N / 90°50'W | 41°20'N / 90°39'W | 10.20 Miles | 33 Yards | 0 | 0 | 2.5M | 0 | Mercer |
| 35.1 | 1978-08-15 | 3 | 41°16'N / 90°47'W | 41°20'N / 90°41'W | 6.40 Miles | 77 Yards | 0 | 0 | 250K | 0 | Mercer |
| 35.2 | 1995-05-13 | 2 | 40°44'N / 90°23'W | 40°49'N / 90°09'W | 14.00 Miles | 880 Yards | 0 | 2 | 1.6M | 0 | Knox |
| Brief Description: A tornado touched down 1 N of St. Augustine and traveled to the northeast. Twelve farm structures and 14 pieces of farm equipment were destroyed. Eighteen homes were either damaged or destroyed. Numerous trees were blown over and a 10 acre orchard with over 1200 trees was destroyed. The tornado also took off the roof of the Maquon Fire Department before it lifted and dissipated 1 NE of Maquon. Two people sustained minor injuries and damage was estimated around $1.6 million. | |||||||||||
| 35.2 | 2003-05-10 | 2 | 40°12'N / 91°20'W | 40°27'N / 90°55'W | 28.40 Miles | 200 Yards | 0 | 0 | 400K | 0 | Hancock |
| Brief Description: Tornado developed in Adams County (WFO LSX) and moved northeast, entering Hancock county 1.2 miles southeast of Tioga at 1749 CST. The tornado moved in a northeast direction for 10.7 miles, passing 2.5 miles south of Basco where F2 damage was noted, and then turned slightly right. The tornado continued northeast for 17.7 miles, passing 1.2 miles south of Bentley and exited into McDonough County 3.9 miles SE of Fountain Green at 1830 CST. Most damage along the path in Hancock County was F0 and F1. The tornado was on the ground for a total of 28.4 miles in Hancock County. | |||||||||||
| 35.8 | 2006-04-13 | 2 | 41°16'N / 90°37'W | 41°16'N / 90°35'W | 2.00 Miles | 50 Yards | 0 | 0 | 30K | 0 | Mercer |
| Brief Description: Rated low F2 Tornado developed just east of 240th Street at 2107 CST and tracked generally east across the far northern part of Matherville and dissipated just west of U.S. 67 east of Matherville at 2111 CST. Two homes had roof damage done to them with the sheriff's office indicating one house was completely unroofed. | |||||||||||
| 35.9 | 1982-03-12 | 2 | 40°20'N / 90°41'W | 0 | 1 | 25K | 0 | Mcdonough | |||
| 36.8 | 1974-04-13 | 2 | 41°12'N / 90°27'W | 0.10 Mile | 20 Yards | 0 | 0 | 25K | 0 | Mercer | |
| 36.9 | 1954-04-30 | 2 | 40°48'N / 91°25'W | 41°50'N / 90°57'W | 75.30 Miles | 200 Yards | 0 | 0 | 25K | 0 | Des Moines |
| 37.9 | 1974-04-13 | 2 | 40°14'N / 90°57'W | 40°18'N / 90°55'W | 4.30 Miles | 500 Yards | 0 | 10 | 2.5M | 0 | Hancock |
| 38.1 | 1999-04-08 | 3 | 40°21'N / 91°27'W | 40°25'N / 91°20'W | 7.50 Miles | 200 Yards | 0 | 0 | 15.0M | 0 | Hancock |
| Brief Description: A tornado developed just west of Warsaw in Hancock County and produced F2 damage to homes in the south part of the community. 2 homes were destroyed while another 30 structures suffered damage, including the high school track and football field and fairgrounds. Trees and branches were blown down in many parts of town. The tornado moved northeast into Hamilton where F3 damage occurred. The tornado destroyed or damaged 144 homes and businesses amounting to 10 million dollars in total damage. 4 people suffered minor injuries. The KHQA-TV tower and KOKX radio tower were destroyed. Governor George Ryan declared Hancock County a state disaster area. The tornado weakened and lifted just northeast of Hamilton. Strong thunderstorms continued over much of Hamilton County in the wake of the tornado producing torrential rain and water over various roads in town. | |||||||||||
| 38.3 | 1967-04-21 | 2 | 40°53'N / 91°56'W | 41°04'N / 91°21'W | 32.80 Miles | 100 Yards | 0 | 0 | 250K | 0 | Van Buren |
| 38.6 | 1978-08-15 | 3 | 41°20'N / 90°41'W | 41°21'N / 90°42'W | 0 | 0 | 250K | 0 | Rock Island | ||
| 39.7 | 1974-04-13 | 2 | 41°14'N / 90°25'W | 0.10 Mile | 17 Yards | 0 | 1 | 3K | 0 | Mercer | |
| 39.8 | 2007-06-01 | 3 | 41°19'N / 91°07'W | 41°27'N / 91°01'W | 10.00 Miles | 774 Yards | 0 | 6 | 15.0M | 0K | Muscatine |
| Brief Description: EVENT NARRATIVE: A tornado entered into Muscatine County from Louisa County just south of Fruitland, IA. It progressed to the northeast through the center of Fruitland destroying the post office and city hall building, numerous homes, and overturning some railroad cars. The tornado weakened as it approached the southwest portions of Muscatine. In Muscatine, the western sections of town had varying degrees of damage, which was mainly confined to roof damage. At a car dealership, some cars were displaced. The tornado eventually lifted on the northeast side of Muscatine near the junction of highways 22 and 61. Debris from Muscatine and Fruitland fell in Lowden, IA. Some personal papers were found 1 to 4 miles northwest of Lowden. Lowden is approximately 30 miles NNE of Muscatine. EPISODE NARRATIVE: A line of thunderstorms pivoted northeast into parts of southeast Iowa during the mid-morning hours of June 1st. Much of the area was just breaking out of a blanket of dense fog where visibilities dropped to less than a quarter mile. Dew point temperatures were in the middle 60s to around 70 degrees. The line of storms appeared to become more broken through the late morning hours, while the area from Iowa City to Waterloo appeared to stratify out into a large area of showers. Just before 12:00 pm CDT, rapid intensification of storm cells on the southeast end of the original line occurred as it moved into northern portions of Louisa County. A tornado touched down just south of Grandview, IA and moved northeast through Fruitland, IA and on to the southwest parts of Muscatine, IA. The tornado then lifted and as the storm cell continued to move northeast across Muscatine County. The super-cell re-intensified as it entered the southeast part of Cedar County just before 1 pm producing a brief tornado near Wilton, IA. The storm then moved across northwest parts of Scott County and Clinton County producing damaging wind gusts and large hail. The super-cell continued northeast into Jackson County producing a tornado near Bellevue around 2:30 pm, which moved across the Mississippi River into Jo Daviess County before lifting. The storm produced yet another tornado just south of Scales Mound, IL around 3:15 pm before moving into southwest Wisconsin and dissipating. During the early afternoon hours, additional storms strengthened on the south end of the original line of storms, which went on to produce wind damage and large hail as they moved through northwest Illinois through the late afternoon hours. | |||||||||||
| 39.8 | 1974-06-14 | 3 | 41°23'N / 90°40'W | 41°18'N / 90°35'W | 6.80 Miles | 33 Yards | 0 | 0 | 0K | 0 | Rock Island |
| 40.2 | 1973-09-30 | 3 | 40°14'N / 90°56'W | 0 | 0 | 0K | 0 | Hancock | |||
| 40.7 | 1975-06-13 | 3 | 40°41'N / 90°15'W | 40°40'N / 90°07'W | 6.60 Miles | 1300 Yards | 0 | 0 | 2.5M | 0 | Fulton |
| 41.2 | 1967-01-24 | 2 | 41°18'N / 91°22'W | 41°21'N / 91°20'W | 3.00 Miles | 250 Yards | 0 | 0 | 0K | 0 | Louisa |
| 41.6 | 1975-07-23 | 3 | 40°33'N / 90°20'W | 40°33'N / 90°07'W | 11.10 Miles | 2630 Yards | 0 | 0 | 250K | 0 | Fulton |
| 41.9 | 1974-04-13 | 3 | 40°16'N / 91°29'W | 40°23'N / 91°20'W | 11.00 Miles | 700 Yards | 0 | 0 | 2.5M | 0 | Hancock |
| 42.0 | 1962-05-28 | 2 | 41°13'N / 90°20'W | 0 | 0 | 0K | 0 | Henry | |||
| 42.4 | 1961-05-14 | 3 | 39°43'N / 91°18'W | 40°43'N / 90°13'W | 89.60 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Pike |
| 42.5 | 1990-03-08 | 2 | 40°12'N / 90°57'W | 40°12'N / 90°54'W | 2.00 Miles | 33 Yards | 0 | 0 | 250K | 0 | Hancock |
| 43.0 | 1975-03-23 | 2 | 41°04'N / 90°11'W | 1.00 Mile | 80 Yards | 0 | 2 | 25K | 0 | Knox | |
| 43.1 | 1959-05-09 | 3 | 40°54'N / 91°46'W | 41°09'N / 91°40'W | 17.80 Miles | 250 Yards | 0 | 0 | 250K | 0 | Jefferson |
| 43.7 | 1990-03-08 | 2 | 40°12'N / 90°54'W | 40°14'N / 90°26'W | 25.00 Miles | 33 Yards | 0 | 0 | 250K | 0 | Schuyler |
| 43.8 | 1961-05-14 | 3 | 40°43'N / 90°13'W | 40°54'N / 89°59'W | 17.30 Miles | 100 Yards | 0 | 8 | 2.5M | 0 | Knox |
| 43.9 | 1959-05-09 | 3 | 40°52'N / 91°47'W | 40°54'N / 91°46'W | 0 | 1 | 250K | 0 | Van Buren | ||
| 44.1 | 1974-05-16 | 2 | 41°20'N / 90°33'W | 41°21'N / 90°22'W | 9.20 Miles | 100 Yards | 0 | 0 | 2.5M | 0 | Rock Island |
| 44.4 | 1976-08-11 | 2 | 40°30'N / 90°12'W | 0 | 1 | 250K | 0 | Fulton | |||
| 44.5 | 1973-04-21 | 2 | 41°20'N / 90°39'W | 41°26'N / 90°25'W | 13.60 Miles | 33 Yards | 0 | 2 | 2.5M | 0 | Rock Island |
| 44.8 | 1974-04-13 | 2 | 40°17'N / 91°30'W | 40°19'N / 91°25'W | 4.30 Miles | 100 Yards | 0 | 0 | 25K | 0 | Clark |
| 45.0 | 1964-04-26 | 2 | 40°36'N / 91°45'W | 2.00 Miles | 200 Yards | 0 | 0 | 25K | 0 | Van Buren | |
| 45.0 | 1988-05-08 | 2 | 41°20'N / 91°26'W | 41°23'N / 91°24'W | 7.00 Miles | 60 Yards | 0 | 0 | 25.0M | 0 | Louisa |
| 45.6 | 2001-06-14 | 2 | 41°28'N / 90°48'W | 41°28'N / 90°48'W | 0.10 Mile | 200 Yards | 0 | 0 | 0 | 0 | Muscatine |
| Brief Description: An F2 tornado touched down at 501 pm CST, around a half mile east/northeast of Montpelier, near Highway 22 and the Muscatine/Scott County line. The tornado then tracked northeast into Scott County, was on the ground about 6.5 miles, and was 200 yards wide. The tornado ripped the roof off of three homes in Blue Grass, and produced lesser damage to many other homes. Three people in Blue Grass sustained minor injuries. The tornado produced F2 damage in the area around Normandy Street in Blue Grass, before lifting 2.5 miles northeast of the community at 506 pm CST. | |||||||||||
| 45.6 | 1970-05-09 | 2 | 41°18'N / 91°32'W | 2.00 Miles | 100 Yards | 0 | 0 | 25K | 0 | Washington | |
| 45.7 | 1959-09-26 | 2 | 41°11'N / 90°22'W | 41°18'N / 90°10'W | 12.90 Miles | 33 Yards | 0 | 0 | 250K | 0 | Henry |
| 46.0 | 1964-08-20 | 2 | 40°41'N / 91°48'W | 0.30 Mile | 50 Yards | 0 | 0 | 250K | 0 | Van Buren | |
| 46.1 | 1981-06-21 | 3 | 40°14'N / 90°38'W | 40°12'N / 90°28'W | 8.80 Miles | 880 Yards | 1 | 12 | 2.5M | 0 | Schuyler |
| 46.3 | 1976-03-04 | 2 | 41°02'N / 90°06'W | 0.10 Mile | 440 Yards | 0 | 0 | 25K | 0 | Knox | |
| 46.3 | 1990-06-19 | 2 | 40°34'N / 90°07'W | 0.30 Mile | 100 Yards | 0 | 0 | 250K | 0 | Fulton | |
| 46.4 | 1975-11-09 | 2 | 41°15'N / 91°37'W | 0 | 0 | 25K | 0 | Washington | |||
| 46.7 | 1988-05-08 | 2 | 41°10'N / 91°49'W | 41°20'N / 91°26'W | 19.00 Miles | 60 Yards | 0 | 0 | 25.0M | 0 | Washington |
| 47.4 | 2010-06-05 | 2 | 40°48'N / 90°05'W | 40°46'N / 89°59'W | 6.00 Miles | 50 Yards | 0 | 0 | 420K | 50K | Knox |
| Brief Description: EVENT NARRATIVE: A tornado touched down 4.5 miles west-northwest of Yates City in eastern Knox County then tracked southeastward to the Knox-Peoria County line. Large tree limbs were snapped and crops were scoured in numerous places along this path. A house had the roof torn off and much of the upper level of the structure severely damaged. The attached garage was also destroyed. In addition, a large garage was destroyed, and seven outbuildings were severely damaged. The tornado continued southeastward into Peoria County. EPISODE NARRATIVE: A stationary frontal boundary extending from southern Michigan across north-central Illinois served as the focus for severe thunderstorm development during the late afternoon and evening of June 5th. A vigorous upper-level disturbance tracking across the Upper Midwest added extra wind energy to the atmosphere, allowing supercell thunderstorms to develop along the front. Eight tornadoes were spawned by the storms, mainly along a Galesburg to Eureka line. An isolated tornado formed further south across eastern Logan and western DeWitt counties as well. No injuries were reported. | |||||||||||
| 47.8 | 1973-05-01 | 3 | 40°25'N / 91°44'W | 40°27'N / 91°40'W | 3.60 Miles | 440 Yards | 2 | 20 | 2.5M | 0 | Clark |
| 48.2 | 1995-05-13 | 4 | 40°22'N / 90°18'W | 40°25'N / 90°07'W | 7.00 Miles | 880 Yards | 0 | 45 | 6.0M | 0 | Fulton |
| Brief Description: A tornado touched down 1 NE of Ipava and traveled to the northeast for seven miles, lifting and dissipating 2 NE of Lewistown. The tops of some high power line structures were broken off and 12 homes were destroyed. Numerous livestock were killed. Numerous cars and farm equipment were either damaged or destroyed. One car was thrown over a 100 yards into a farm field. Forty-five people sustained minor injuries, mainly from flying debris. Damage was estimated around $6 million. | |||||||||||
| 48.2 | 1967-05-07 | 2 | 41°32'N / 90°54'W | 41°29'N / 90°45'W | 8.00 Miles | 200 Yards | 0 | 0 | 25K | 0 | Muscatine |
| 48.5 | 1965-04-23 | 2 | 41°21'N / 90°20'W | 0.20 Mile | 100 Yards | 0 | 0 | 25K | 0 | Henry | |
| 49.3 | 2001-06-14 | 2 | 41°29'N / 90°47'W | 41°33'N / 90°44'W | 6.40 Miles | 200 Yards | 0 | 3 | 0 | 0 | Scott |
| Brief Description: An F2 tornado touched down at 501 pm CST, around a half mile east/northeast of Montpelier, near Highway 22 and the Muscatine/Scott County line. The tornado then tracked northeast into Scott County, was on the ground about 6.5 miles, and was 200 yards wide. The tornado ripped the roof off of three homes in Blue Grass, and produced lesser damage to many other homes. Three people in Blue Grass sustained minor injuries. The tornado produced F2 damage in the area around Normandy Street in Blue Grass, before lifting 2.5 miles northeast of the community at 506 pm CST. | |||||||||||
| 49.9 | 2003-05-10 | 2 | 40°07'N / 90°40'W | 40°09'N / 90°35'W | 6.00 Miles | 150 Yards | 0 | 0 | 0 | 0 | Schuyler |
| Brief Description: A tornado touched down 5.5 miles west of Rushville. It destroyed a house, as well as a barn. The tornado traveled to the northeast blowing down numerous trees and power lines. Also, numerous silos, barns and machine sheds were either damaged or destroyed. The tornado lifted and dissipated 3 miles north northwest of Rushville. No injuries were reported. | |||||||||||
| 50.0 | 1995-05-09 | 3 | 41°32'N / 90°49'W | 7.00 Miles | 500 Yards | 0 | 0 | 3.0M | 0 | Scott | |
| Brief Description: This tornado destroyed 26 farm buildings, 20 of them with major damage. Nine homes were hit, one destroyed, two with major damage and six with minor damage. Seven of the nine homes were farmhouses. Roxanne Paper, with baby boy Logan in arm, was downstairs when the tornado struck. She reported that it sounded like something big was tearing through the house. The Gary Meincke farm was hit very hard. He and his wife watched the tornado touch down south of their farm at around 1630 CDT. Shortly after that they ran with their children to the basement. Debris from the Leroy Feldhahn farm near Stockton was spread over nearby Interstate 80 causing a two mile long traffic jam. Governor Terry Branstad later proclaimed a Disaster Emergency for Scott County. | |||||||||||
| 50.0 | 1975-07-23 | 3 | 40°34'N / 90°11'W | 40°32'N / 89°55'W | 14.00 Miles | 2630 Yards | 2 | 69 | 25.0M | 0 | Fulton |
* 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.