Boss, MO Natural Disasters and Weather Extremes
Hot Rankings
The chance of earthquake damage in Boss is lower than Missouri average and is much lower than the national average. The risk of tornado damage in Boss is much lower than Missouri average and is about the same as the national average.
Earthquake Index, #342
| Boss, MO | 0.29 |
| Missouri | 0.70 |
| 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
| Boss, MO | 0.0000 |
| Missouri | 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, #1152
| Boss, MO | 131.72 |
| Missouri | 214.01 |
| 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 1,924 other weather extremes events within 50 miles of Boss, MO 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: | 1 | Cold: | 7 | Dense Fog: | 1 | Drought: | 3 |
| Dust Storm: | 0 | Flood: | 278 | Hail: | 806 | Heat: | 41 | Heavy Snow: | 10 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 8 | Landslide: | 0 | Strong Wind: | 2 |
| Thunderstorm Winds: | 708 | Tropical Storm: | 0 | Wildfire: | 3 | Winter Storm: | 28 | Winter Weather: | 3 |
| Other: | 25 | ||||||||
Volcanos Nearby
No volcano is found in or near Boss, MO.
Historical Earthquake Events
A total of 4 historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Boss, MO.
| Distance (miles) | Date | Magnitude | Depth (km) | Latitude | Longitude |
| 15.8 | 1965-03-06 | 5.3 | N/A | 37.83 | -91.17 |
| 18.1 | 1965-10-21 | 5.2 | N/A | 37.85 | -91.08 |
| 43.4 | 1967-07-21 | 3.9 | N/A | 37.5 | -90.4 |
| 47.0 | 1974-08-11 | 3.6 | 4 | 36.92 | -91.17 |
Historical Tornado Events
A total of 58 historical tornado events that had recorded magnitude of 2 or above found in or near Boss, MO.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 8.7 | 1967-12-21 | 4 | 37°41'N / 91°08'W | 37°44'N / 91°04'W | 5.10 Miles | 200 Yards | 0 | 5 | 2.5M | 0 | Iron |
| 12.9 | 1957-05-21 | 3 | 37°33'N / 91°30'W | 37°37'N / 91°20'W | 10.20 Miles | 440 Yards | 0 | 2 | 25K | 0 | Dent |
| 15.2 | 2006-09-22 | 2 | 37°32'N / 91°01'W | 37°35'N / 90°48'W | 12.80 Miles | 550 Yards | 0 | 0 | 0 | 0 | Reynolds |
| Brief Description: The tornado touched down 2.5 miles southeast of Oates, in Reynolds County, near Forest Road 2329, then traveled northeast crossing Route J near the intersection with County Road 829. At this location it removed the roof of a pole barn, caused damage to the roof of a house and uprooted and snapped numerous trees. The damage path was around 200 yards wide and was rated F1 in intensity. As it traveled northeast, it snapped, uprooted and twisted numerous trees and caused minor roof damage to a manufactured home. As the tornado crossed Highway 49, two and a half miles north of the town of Black, it caused considerable damage. Numerous trees were snapped and uprooted, an unanchored manufactured home sustained heavy damage and was shifted 30 feet. Two automobiles were lifted distances ranging from 10 to 50 yards and two other homes sustained varying degrees of damage directly from the tornado and from fallen trees. A well defined convergent pattern was evident in the debris and eyewitnesses indicate the tornado had a multiple vortex structure. The damage path was around a third of a mile wide and was rated a high end F1 in this location. Further to the northeast, the tornado crossed Route MM around eight tenths of a mile north of Monterey. At this location an uninhabited home was completely destroyed with the walls pulled from numerous anchor bolts attached to the concrete foundation. Also, a wooden power pole was snapped at the base and numerous trees were snapped. The damage path was around a quarter of a mile wide and was rated a low end F2 in this location. The tornado then tracked northeast into Iron County about three tenths of a mile north of Munger. No injuries or deaths were reported. | |||||||||||
| 22.4 | 1967-12-21 | 4 | 37°44'N / 91°04'W | 37°57'N / 90°45'W | 22.80 Miles | 200 Yards | 3 | 47 | 2.5M | 0 | Washington |
| 24.6 | 1974-04-14 | 2 | 37°46'N / 90°47'W | 1.50 Miles | 50 Yards | 0 | 0 | 0K | 0 | Washington | |
| 25.6 | 2006-09-22 | 2 | 37°38'N / 90°46'W | 37°39'N / 90°40'W | 4.80 Miles | 100 Yards | 0 | 0 | 0 | 0 | Iron |
| Brief Description: The tornado touched down 6 miles west of Pilot Knob on Route N where it destroyed a mobile home and blew down several trees and numerous tree limbs. The damage path was about 40 yards wide and was rated F1 in intensity. The tornado then traveled east towards Snow Hollow Lake. A ranch home was severely damaged along the north side of the lake. The tornado then hit several large trees along the east side of the lake. The damage path was 100 yards wide in this location with F2 intensity. The tornado continued moving to the east for another mile before lifting and dissipating. No injuries or deaths were reported. | |||||||||||
| 26.1 | 1957-05-21 | 3 | 37°46'N / 90°55'W | 37°51'N / 90°39'W | 15.50 Miles | 400 Yards | 0 | 1 | 25.0M | 0 | Washington |
| 27.5 | 1970-04-12 | 2 | 37°15'N / 90°57'W | 37°17'N / 90°52'W | 5.10 Miles | 100 Yards | 0 | 1 | 250K | 0 | Reynolds |
| 28.2 | 1950-01-25 | 2 | 37°36'N / 90°41'W | 37°38'N / 90°39'W | 2.30 Miles | 300 Yards | 0 | 5 | 250K | 0 | Iron |
| 28.8 | 1966-12-08 | 3 | 37°51'N / 90°47'W | 37°52'N / 90°45'W | 1.30 Miles | 200 Yards | 0 | 0 | 250K | 0 | Washington |
| 29.2 | 2006-03-11 | 2 | 37°24'N / 90°49'W | 37°35'N / 90°31'W | 13.00 Miles | 450 Yards | 0 | 0 | 0 | 0 | Iron |
| Brief Description: The tornado that started in Reynolds entered Iron County and crossed Highway 49 between Chloride and Sabula causing considerable tree damage in the Mark Twain National Forest. The damage through the forest was about one quarter mile wide. The tornado crossed Route E west of Patterson Mountain where it damaged a barn and the roof and siding of a home. The tornado then continued into Madison County. | |||||||||||
| 29.6 | 1969-06-22 | 4 | 37°57'N / 91°06'W | 38°00'N / 90°44'W | 20.20 Miles | 800 Yards | 2 | 22 | 2.5M | 0 | Washington |
| 30.6 | 1966-12-08 | 3 | 37°52'N / 90°45'W | 37°53'N / 90°44'W | 0 | 2 | 250K | 0 | Washington | ||
| 31.7 | 1972-04-21 | 2 | 37°21'N / 90°44'W | 37°23'N / 90°38'W | 5.70 Miles | 50 Yards | 0 | 4 | 25K | 0 | Iron |
| 32.0 | 1968-04-03 | 2 | 37°35'N / 91°48'W | 37°38'N / 91°44'W | 4.70 Miles | 100 Yards | 0 | 0 | 3K | 0 | Texas |
| 32.5 | 1973-11-24 | 2 | 37°09'N / 91°21'W | 1.00 Mile | 60 Yards | 3 | 1 | 250K | 0 | Shannon | |
| 33.1 | 1984-11-09 | 2 | 37°56'N / 90°48'W | 37°58'N / 90°44'W | 3.00 Miles | 340 Yards | 1 | 15 | 25.0M | 0 | Washington |
| 33.3 | 1974-04-14 | 2 | 38°03'N / 91°24'W | 38°05'N / 91°17'W | 6.50 Miles | 100 Yards | 0 | 0 | 250K | 0 | Crawford |
| 34.7 | 1999-06-01 | 2 | 37°44'N / 91°48'W | 37°45'N / 91°47'W | 1.00 Mile | 250 Yards | 0 | 0 | 60K | 0 | Dent |
| Brief Description: A tornado touched down northeast of Edgar Springs and moved into rural areas in northwest Dent County. 12 homes were damaged and 2 were destroyed in the Edgar Springs area. One mobile home was severely damaged in northwest Dent County. Numerous trees and power lines were downed. | |||||||||||
| 34.8 | 1957-05-21 | 3 | 37°51'N / 90°39'W | 37°52'N / 90°37'W | 1.30 Miles | 400 Yards | 0 | 0 | 25.0M | 0 | St. Francois |
| 35.2 | 1972-04-21 | 2 | 37°23'N / 90°38'W | 37°25'N / 90°33'W | 5.10 Miles | 50 Yards | 0 | 0 | 25K | 0 | Iron |
| 35.3 | 1971-05-24 | 2 | 37°51'N / 90°54'W | 38°01'N / 90°29'W | 25.40 Miles | 50 Yards | 0 | 0 | 250K | 0 | Washington |
| 35.6 | 1999-06-01 | 2 | 37°44'N / 91°49'W | 37°45'N / 91°48'W | 1.00 Mile | 250 Yards | 0 | 0 | 175K | 0 | Phelps |
| Brief Description: A tornado touched down northeast of Edgar Springs and moved into rural areas in northwest Dent County. 12 homes were damaged and 2 were destroyed in the Edgar Springs area. One mobile home was severely damaged in northwest Dent County. Numerous trees and power lines were downed. | |||||||||||
| 36.0 | 1982-12-02 | 2 | 37°23'N / 90°36'W | 37°27'N / 90°32'W | 5.00 Miles | 50 Yards | 0 | 0 | 250K | 0 | Iron |
| 36.3 | 1968-04-03 | 2 | 37°30'N / 91°53'W | 37°35'N / 91°48'W | 7.20 Miles | 100 Yards | 0 | 0 | 3K | 0 | Texas |
| 36.7 | 1999-06-01 | 3 | 38°00'N / 91°41'W | 38°00'N / 91°34'W | 7.00 Miles | 300 Yards | 0 | 0 | 3.5M | 0 | Phelps |
| Brief Description: A tornado with an intermittent damage path, damaged 200 homes, businesses, and other buildings in the southern portion of St. James. Of these, 33 homes were destroyed along with the St. James Golf Course clubhouse and two Missouri Department of Transportation (MODOT) buildings. Initially, the tornado touched down just west of the intersection of Hwy BB and County Road (CR) 3370 and produced F1 damage, damaging roofs and destroying a barn. The path width was about 200 yards. The tornado then moved east, south of the downtown St. James area and intensified. F2-F3 damage occurred with a 200-300 yard damage path. Several homes and farm buildings were severely damaged or destroyed. F3 damage occurred at the golf course and at the MODOT site south-southeast of town with a damage path width of 300 yards. The tornado then weakened rapidly, producing F1 damage with a damage path width of 150 yards about 3 miles southeast of downtown. | |||||||||||
| 36.8 | 1982-04-16 | 2 | 38°06'N / 91°25'W | 0 | 0 | 250K | 0 | Crawford | |||
| 36.9 | 2009-05-08 | 2 | 37°04'N / 91°39'W | 37°12'N / 91°22'W | 17.00 Miles | 880 Yards | 0 | 0 | 50K | 13.0M | Shannon |
| Brief Description: EVENT NARRATIVE: This tornado is a continuation of the southeastern Texas County tornado. A National Weather Service storm survey revealed that an EF-2 tornado entered rural west central Shannon County from southeastern Texas County. This tornado tracked across forested areas of west central and central Shannon County, uprooting and snapping numerous trees. The Missouri Department of Conservation announced that the tornado and other high winds from this event resulted in $13M of damage to trees. The tornado also damaged a sawmill along its path. EPISODE NARRATIVE: An intense squall line impacted extreme southeast Kansas and the Missouri Ozarks with mainly damaging winds. However, 19 tornadoes along with large hail was also observed. Due to the straight line nature of the winds, damage was widespread and intense. | |||||||||||
| 38.6 | 1957-05-21 | 3 | 37°52'N / 90°37'W | 37°53'N / 90°31'W | 5.40 Miles | 400 Yards | 8 | 49 | 25.0M | 0 | St. Francois |
| 38.8 | 1982-12-02 | 2 | 37°27'N / 90°32'W | 37°34'N / 90°26'W | 8.00 Miles | 50 Yards | 0 | 0 | 250K | 0 | Madison |
| 39.1 | 1963-06-10 | 2 | 37°52'N / 90°33'W | 2.00 Miles | 50 Yards | 0 | 2 | 250K | 0 | St. Francois | |
| 39.3 | 1969-06-22 | 4 | 37°44'N / 90°33'W | 37°44'N / 90°25'W | 7.20 Miles | 440 Yards | 4 | 14 | 2.5M | 0 | St. Francois |
| 39.5 | 1964-03-25 | 3 | 37°03'N / 91°01'W | 37°06'N / 90°47'W | 13.30 Miles | 300 Yards | 0 | 0 | 25K | 0 | Carter |
| 39.7 | 1960-02-09 | 2 | 37°42'N / 90°33'W | 37°46'N / 90°24'W | 9.30 Miles | 100 Yards | 0 | 0 | 25K | 0 | St. Francois |
| 39.7 | 2010-12-31 | 3 | 37°56'N / 91°48'W | 38°02'N / 91°39'W | 11.00 Miles | 500 Yards | 2 | 6 | 1.0M | 0K | Phelps |
| Brief Description: EVENT NARRATIVE: A NWS survey team determined that an EF-3 tornado occurred north of Rolla. The heaviest damage occurred between state Highway E and County Road 8040. Two single wide mobile homes were completely destroyed with debris thrown upstream while the frames were detached. Two fatalities occurred in one of these homes. A two story home had all but its interior walls destroyed. Several cars were thrown with one vehicle thrown over the destroyed home. Minor to moderate roof and tree damage occurred at various locations near the starting point to Highway 63 north of Rolla. There was primarily tree damage between Highway 63 and Highway 68. EPISODE NARRATIVE: Between the evening of the 30th and the morning of the 31st, two separate lines of thunderstorms produced significant severe weather across southwest Missouri including damaging wind, large hail, and deadly tornadoes. The first round of storms lifted out of Arkansas late on the evening of the 30th and the second round moved out of western Kansas shortly before daybreak on the 31st. | |||||||||||
| 40.0 | 1966-12-08 | 2 | 37°57'N / 91°46'W | 0.20 Mile | 17 Yards | 0 | 0 | 25K | 0 | Phelps | |
| 40.0 | 1973-06-04 | 2 | 37°57'N / 91°46'W | 0.30 Mile | 100 Yards | 0 | 1 | 250K | 0 | Phelps | |
| 40.0 | 1988-03-24 | 2 | 37°20'N / 91°55'W | 37°24'N / 91°47'W | 12.00 Miles | 50 Yards | 0 | 5 | 2.5M | 0 | Texas |
| 40.2 | 1973-06-03 | 2 | 37°51'N / 90°31'W | 0 | 0 | 25K | 0 | St. Francois | |||
| 42.5 | 1972-04-21 | 2 | 37°25'N / 90°33'W | 37°31'N / 90°18'W | 15.20 Miles | 50 Yards | 0 | 0 | 25K | 0 | Madison |
| 42.9 | 1952-03-18 | 2 | 37°45'N / 90°30'W | 37°47'N / 90°21'W | 8.50 Miles | 100 Yards | 0 | 1 | 25K | 0 | St. Francois |
| 43.4 | 1960-11-15 | 2 | 38°04'N / 91°43'W | 2.00 Miles | 17 Yards | 0 | 0 | 25K | 0 | Maries | |
| 43.5 | 1957-05-21 | 4 | 36°57'N / 91°10'W | 37°00'N / 91°01'W | 9.10 Miles | 500 Yards | 7 | 75 | 250K | 0 | Carter |
| 43.5 | 1964-03-25 | 3 | 37°06'N / 90°47'W | 37°10'N / 90°31'W | 15.30 Miles | 300 Yards | 0 | 0 | 25K | 0 | Wayne |
| 44.0 | 1984-10-18 | 3 | 36°52'N / 91°24'W | 37°05'N / 91°16'W | 16.00 Miles | 440 Yards | 1 | 0 | 2.5M | 0 | Shannon |
| 44.5 | 1973-05-07 | 2 | 37°24'N / 90°28'W | 37°34'N / 90°18'W | 14.60 Miles | 100 Yards | 0 | 0 | 250K | 0 | Madison |
| 45.4 | 1969-06-22 | 4 | 37°44'N / 90°25'W | 37°43'N / 90°19'W | 5.60 Miles | 440 Yards | 0 | 0 | 2.5M | 0 | St. Francois |
| 45.8 | 1982-12-24 | 4 | 36°48'N / 91°12'W | 37°05'N / 90°59'W | 18.00 Miles | 300 Yards | 0 | 0 | 2.5M | 0 | Carter |
| 46.1 | 1968-04-03 | 2 | 37°21'N / 90°28'W | 37°28'N / 90°17'W | 12.80 Miles | 500 Yards | 0 | 0 | 250K | 0 | Madison |
| 46.8 | 1975-09-11 | 2 | 37°20'N / 91°58'W | 0.30 Mile | 40 Yards | 0 | 0 | 250K | 0 | Texas | |
| 46.9 | 2006-09-22 | 2 | 37°36'N / 90°28'W | 37°39'N / 90°11'W | 18.00 Miles | 880 Yards | 0 | 1 | 0 | 0 | Madison |
| Brief Description: The tornado touched down just west of Route K approximately one mile north of Highway 72. As it traveled east, numerous trees and tree limbs were blown down. The tornado moved across U.S. Highway 67 about 4 miles northwest of Fredericktown, knocking down additional trees and tree limbs. The damage path was about 50 yards wide with a damage intensity of F0. As it approached the Fredericktown Municipal Airport, along Copper Mines Road, it began to produce multiple vortices. Two tornadic damage tracks were uncovered across a lake west of Highway OO along County Roads 271 and 272. Over 20 homes, mobile homes and machine sheds sustained varying degrees of damage. Several witnesses observed twin tornadoes merging into one large tornado over this area. The width of the damage path of the northern track was approximately 150 yards wide while the southern damage path was about 100 yards wide. The damage intensity ranged from F1 to F2 in this location. As the large tornado crossed Highway OO, five homes, four mobile homes and several machine sheds sustained varying degrees of damage. The damage path was 300 yards wide and high end F1 intensity. The tornado continued east along County Road 217. Four homes sustained F1 to F2 damage with debris from two of the homes thrown between 50 to 100 yards to the east. Also, numerous trees were either snapped or uprooted in this area. The width of the damage path in this area was about 250 yards. Further east, two tornadic damage tracks were uncovered about half a mile to a mile north of the intersection of County Roads 215 and 217. Four homes sustained varying degrees of damage while one mobile home was completely destroyed. One person was critically injured near the destroyed mobile home. Debris from the mobile home was tossed over 150 yards to the east. The width of the northern damage path was about 150 yards, while the width of the southern track was about 50 yards. The damage was rated high end F1 in this location. Witnesses observed the twin tornadoes merge again into one large funnel as it crossed a second small lake north of County Road 217. Four homes and several machine sheds sustained damage. Also, over a thousand trees around the lake were snapped or uprooted. The damage path was a quarter of a mile wide in this location and was rated F1 to low end F2. The tornado continued eastward into northeast Madison County crossing County Road 219 just south of the Madison/St. Francois County line. Three homes were damaged and three machine sheds were destroyed, as well as thousands of trees snapped or uprooted. The width of the damage path in this area was half a mile and was rated F2. The tornado then crossed into extreme southeastern St. Francois County near Martin Road. | |||||||||||
| 47.3 | 1957-12-18 | 2 | 37°41'N / 90°21'W | 37°42'N / 90°18'W | 2.70 Miles | 33 Yards | 1 | 1 | 25K | 0 | St. Francois |
| 48.1 | 1963-05-16 | 2 | 37°40'N / 90°21'W | 37°42'N / 90°16'W | 4.90 Miles | 50 Yards | 0 | 0 | 250K | 0 | St. Francois |
| 48.1 | 2002-04-24 | 4 | 37°00'N / 91°01'W | 36°55'N / 90°40'W | 20.50 Miles | 300 Yards | 0 | 2 | 15.0M | 0 | Carter |
| Brief Description: The tornado damage path began on the west side of Van Buren, right along the Current River, and crossed U.S. Route 60 very close to the Current River bridge. Two businesses in Van Buren, a lodge and a restaurant, were heavily damaged by F-2 intensity winds. The tornado travelled southeast across hilly and forested terrain until reaching the community of Ellsinore. Damage on the south side of Ellsinore was severe, where about 7 businesses were destroyed. Most of the damage at Ellsinore, which was inflicted by F-4 intensity winds, occurred along and near U.S. Highway 60. Across Carter County, 13 homes were destroyed and 12 homes suffered major damage. The tornado then moved into the Mark Twain National Forest and crossed into Butler County north of Highway 60. | |||||||||||
| 48.8 | 1979-04-11 | 3 | 37°02'N / 92°06'W | 37°30'N / 91°50'W | 35.40 Miles | 400 Yards | 0 | 9 | 2.5M | 0 | Texas |
| 48.8 | 2010-12-31 | 2 | 36°56'N / 90°51'W | 36°58'N / 90°49'W | 3.00 Miles | 200 Yards | 0 | 0 | 200K | 0K | Carter |
| Brief Description: EVENT NARRATIVE: The tornado touched down near County Road 223, where a tin roof was peeled up on a small outbuilding. A gate and fence were blown about 50 feet. The tornado reached its maximum width and its peak intensity as it crossed County Road 225. This is where a permanent home suffered partial wall and roof loss, a mobile home was blown 15 feet off its foundation, and over one hundred trees were uprooted. The residents of the mobile home took refuge in the laundry room, which was the only room not destroyed. Residents of both homes were provided food and shelter by the Red Cross. A large oak tree fell on a vehicle, causing major damage to the vehicle. Two other vehicles were damaged by debris. A shed and outbuildings were destroyed. A bicycle was blown up into a tree. A twin-pole high voltage transmission tower was partially blown over. The tornado crossed U.S. Highway 60, then struck a sawmill on Highway FF. The 40-by-100 foot sawmill was destroyed. None of the eight workers in the sawmill were injured, possibly because they jumped into a sawdust pit. A home near the sawmill lost part of its roof (less than 20 percent), and dozens of large trees were uprooted. As the tornado crossed County Road 327, a few more trees were blown down. Part of a metal roof from a small barn was blown into a tree. Due to damage to the high-voltage transmission lines, over 1,500 customers from Van Buren to Ellsinore were without power for up to four hours. A National Weather Service damage survey confirmed a convergent signature to the debris pattern. A person in the area reported witnessing the tornado. Peak winds in this tornado were estimated near 120 mph. EPISODE NARRATIVE: A pre-frontal line of thunderstorms developed ahead of a cold front over western Missouri. The broken line of storms extended southwestward across southeast Missouri. Isolated bowing segments and supercells were embedded within portions of the line. The storms existed within a narrow axis of marginal instability with mixed layer capes at or below 500 j/kg. A low level jet axis along the Mississippi River provided more than sufficient vertical wind shear for embedded supercells with isolated tornadoes. | |||||||||||
| 48.9 | 2008-01-07 | 3 | 37°54'N / 92°01'W | 37°56'N / 91°57'W | 5.00 Miles | 400 Yards | 0 | 0 | 110K | 0K | Phelps |
| Brief Description: EVENT NARRATIVE: A National Weather Service storm survey revealed that an EF-3 tornado tracked into northeast Phelps County. The tornado impacted areas on the northern edge of Jerome destroying one home and several oubuildings. EPISODE NARRATIVE: An unusual mid winter tornado outbreak occurred over southwest and central Missouri. 31 tornadoes struck the region within a 15 hour time frame on 7 January into early morning 8 January. Two tornadoes intensified to EF-3 status while five tornadoes caused EF-2 damage. All other tornadoes during this outbreak were surveyed and given EF-0 and EF-1 status. Multiple training supercells spawned most of these tornadoes that occurred along the Interstate 44 corridor. Toward the end of this episode, a broken squall line spawned numerous EF-0 and EF-1 tornadoes across the southern Missouri Ozarks. | |||||||||||
| 49.3 | 1969-06-22 | 4 | 37°43'N / 90°19'W | 37°43'N / 90°16'W | 2.30 Miles | 440 Yards | 0 | 0 | 2.5M | 0 | St. Francois |
* 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.