Easter Week 2006 Tornado Outbreak Sequence

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Easter Week 2006 Tornado Outbreak Sequence
Damage to a church in Iowa City
Damage to a church in Iowa City
Date of tornado outbreak: April 13-18, 2006
Duration1: 4 days, 4 hours, 19 minutes
Maximum rated tornado2: F3 tornado
Tornadoes caused: 54 confirmed
Damages: $23.952 million (2006 USD) $25.61 million (2008 USD)
Fatalities: 1
Areas affected: Midwest, Mid-Atlantic States

1Time from first tornado to last tornado
2Most severe tornado damage; see Fujita Scale

The Easter Week 2006 Tornado Outbreak Sequence was a tornado outbreak sequence during the days leading up to Easter and continued into the first week after Easter. It was the third major outbreak of April 2006, which had been an unusually busy month for tornado activity.

Contents

[edit] Meteorological synopsis

Damage to a farm near Anomosa, Iowa.
Damage to a farm near Anomosa, Iowa.

On April 13, a complex of severe thunderstorms formed in eastern Iowa, bringing many reports of large hail along with unexpected reports of strong tornadoes, some with debris. The worst impacts were felt in and around Iowa City where significant damage and numerous injuries were reported, in addition to at least one death across the region.

Another supercell developed on April 14 across western Indiana, touching down a few tornadoes, although nothing very serious was reported. That system moved eastward over the Mid-Atlantic States on April 15, although no tornadoes were reported there.

While the first system moved eastward, a second system developed over the Upper Midwest and tracked across the Midwest on April 15 and 16. This new system has led to about 40 reported tornadoes, and several have been damaging, although no fatalities were reported from the second system.

That system then tracked into the Mid-Atlantic on April 17, and was mostly a straight-line wind event, although there were a handful of new tornadoes reported across the region.

A third system developed on April 18 and brought even more severe weather, this time farther south in the lower Midwest, mainly Missouri. There were several more tornadoes reported from this one.

The severe weather finally came to an end on April 19 across the South.

The back side of this system produced heavy snow and blizzard conditions over the High Plains.

[edit] Reported tornadoes

Confirmed
Total
Confirmed
F0
Confirmed
F1
Confirmed
F2
Confirmed
F3
Confirmed
F4
Confirmed
F5
54 30 18 5 1 0 0

[edit] April 13 event

List of reported tornadoes - Thursday, April 13, 2006
F#
Location
County
Coord.
Time (UTC)
Path length
Damage
Iowa
F0 NE of Toledo Tama 42°03′N 92°31′W / 42.05, -92.52 0010 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 N of Marion Linn 42°06′N 91°36′W / 42.1, -91.6 0040 1 mile (1.6 km) Brief touchdown, one trailer was destroyed and a farm suffered roof damage. Caused $70,000 in damages
F0 SE of Van Horne Benton 41°59′N 92°03′W / 41.98, -92.05 0050 4.8 miles (7.7 km) Tornado snapped four power poles and damaged fences. Caused $10,000 in damages
F1 SW of Anamosa Jones 42°05′N 91°20′W / 42.08, -91.33 0115 3.7 miles (6.0 km) 1 Injury Half-mile-wide tornado completely destroyed a mobile home. Multiple locations had garages destroyed with extensive damage to roofs and walls of homes. Caused $100,000 in damages
F1 SSW of Sharon Center Johnson 41°33′N 91°41′W / 41.55, -91.68 0116 3.6 miles (5.8 km) A continuous damage path was noted with tree damage and some farm outbuildings damaged. Caused $20,000 in damages
F3 Iowa City area Johnson 41°40′N 91°33′W / 41.67, -91.55 0129 4.5 miles (7.2 km) 30 Injuries Rated as an F3. Tornado made a direct hit on Iowa City. A total of 1,016 residential and 35 commercial buildings were damaged with some destroyed. The University of Iowa was hit with the motor pool headquarters a total loss and 31 vehicles damaged. Three automobile dealerships were damaged; one dealership had 200 vehicles damaged, a second had 60-70 vehicles damaged, and a third had nearly every vehicle sustaining some type of damage. A church's steeple was collapsed and its roof torn off, as well as a popular Dairy Queen being destroyed. In all, the tornado caused at least $15 million in damages but the damage has not been finalized.
F1 NE of Hills (1st tornado) Johnson 41°36′N 91°29′W / 41.6, -91.48 0138 5.1 miles (8.2 km) A mobile home was destroyed and a house lost a portion of its roof. Considerable tree damage was noted and several farm outbuildings were damaged or unroofed. Caused $70,000 in damages
F1 SE of Lone Tree (1st tornado) Johnson, Muscatine 41°26′N 91°23′W / 41.43, -91.38 0145 9.4 miles (15.1 km) 1 Death 1 Injury One mobile home was destroyed and several other structures were damaged. Caused $125,000 in damages
F1 E of Lone Tree (2nd tornado) Johnson, Muscatine 41°29′N 91°23′W / 41.48, -91.38 0148 4.8 miles (7.7 km) A community center was unroofed and a new metal pole barn was destroyed. Caused $82,000 in damages
F0 WSW of Muscatine Muscatine, Sac 41°24′N 91°07′W / 41.4, -91.12 0213 6.4 miles (10.3 km) Minor damage reported. Caused $20,000 in damages
F0 NNE of Hills (2nd tornado) Johnson 41°40′N 91°29′W / 41.67, -91.48 0219 0.5 miles (0.8 km) Tornado caused roof damage to a house that had been previously damaged by a tornado 40 minutes earlier. Caused $10,000 in damages
F1 W of Le Claire Scott 41°36′N 90°22′W / 41.6, -90.37 0242 1.5 miles (2.4 km) Rare tornado formed on the cold side of a front and was initiated by a downburst. A barn was destroyed. Caused $60,000 in damages.
Illinois
F1 W of Illinois City Rock Island, Mercer 41°20′N 90°59′W / 41.33, -90.98 0229 13 miles (20.9 km) Damage confined mainly to trees with a few outbuildings damaged. Caused $20,000 in damages.
F1 NW of Mannon Mercer 41°15′N 90°58′W / 41.25, -90.97 0257 1.5 miles (2.4 km) Tornado destroyed a mobile home. Caused $50,000 in damages.
F2 WNW of Matherville Mercer 41°16′N 90°37′W / 41.27, -90.62 0307 2 miles (3.2 km) Two homes had roof damage done to them with the sheriff's office indicating one house was completely unroofed. Caused $30,000 in damages.
F1 WSW of North Henderson Mercer 41°03′N 90°33′W / 41.05, -90.55 0312 0.8 miles (1.3 km) A parsonage on the west side of town had 75 percent of its roof torn off with the roof blown onto the house next door. Across the north side of town, several sheds were heavily damaged or destroyed with considerable tree damage. One house had its roof completely torn off with varying roof damage to numerous other houses. Several utility poles were snapped in half. Caused $100,000 in damages.
F0 NNW of Lincoln Logan 41°11′N 89°23′W / 41.18, -89.38 0525 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 Lincoln area Logan 41°09′N 89°22′W / 41.15, -89.37 0527 3.8 miles (6.1 km) Tornado touched down near Lincoln Airport. The tornado damaged roofs, siding and outbuildings, and blew down numerous trees and power lines. In addition, before lifting, the tornado damaged several barns in a rural area to the east of Lincoln. Caused $2.5 million in damages

[edit] April 14 event

List of reported tornadoes - Friday, April 14, 2006
F#
Location
County
Coord.
Time (UTC)
Path length
Damage
Illinois
F0 N of Grand Ridge La Salle 41°15′N 88°50′W / 41.25, -88.83 2333 0.5 miles (0.8 km) Brief touchdown, no damage reported.
Indiana
F0 Ambia area Benton 40°29′N 87°31′W / 40.48, -87.52 2357 0.5 miles (0.8 km) Brief touchdown, no damage reported.
F0 NW of Cairo Tippecanoe 40°33′N 86°56′W / 40.55, -86.93 2358 3.2 miles (5.1 km) Brief touchdown, no damage reported.
F1 Americus area Tippecanoe, Carroll 40°32′N 86°45′W / 40.53, -86.75 0018 2.3 miles (3.7 km) Brief touchdown, damage was confined to farm outbuildings. Caused $60,000 in damages.
F1 Burney area Decatur 39°19′N 85°38′W / 39.32, -85.63 0018 0.8 miles (1.3 km) Brief touchdown, tornado destroyed a garage, and damaged several outbuildings. Caused $100,000 in damages.

[edit] April 15 event

List of reported tornadoes - Saturday, April 15, 2006
F#
Location
County
Coord.
Time (UTC)
Path length
Damage
Nebraska
F2 W of Wymore Gage, Johnson 40°08′N 96°47′W / 40.13, -96.78 2133 34 miles (54.7 km) Long track tornado destroyed one home, severely damaged two others, and affected 69 others. Caused $5 million in damages.
F1 S of Nebraska City Otoe 40°29′N 95°51′W / 40.48, -95.85 2333 2.5 miles (4.0 km) Brief touchdown, tornado damaged one home and destroyed a few cars. Caused $70,000 in damages.
Kansas
F0 E of Onaga Pottawatomie 39°29′N 96°08′W / 39.48, -96.13 2248 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 NE of Circleville Jackson, Brown 39°32′N 95°49′W / 39.53, -95.82 2320 11 miles (17.7 km) Tornado damaged a few outbuildings. Caused $70,000 in damages.
F0 NW of Horton Brown 39°42′N 95°34′W / 39.7, -95.57 2340 1 mile (1.6 km) Brief touchdown, tornado destroyed two outbuildings. Caused $100,000 in damages.
F1 S of Willis Brown 39°42′N 95°30′W / 39.7, -95.5 2344 4 miles (6.4 km) Four well built outbuildings were destroyed on a farmstead. Caused $150,000 in damages.
F0 SSW of Robinson Brown 39°47′N 95°26′W / 39.78, -95.43 2352 0.1 miles (0.2 km) Tornado damaged one home. Caused $30,000 in damages.
F0 N of Denton Doniphan 39°46′N 95°16′W / 39.77, -95.27 0003 2 miles (3.2 km) Brief touchdown, no damage reported.
F0 S of Tonganoxie Leavenworth 39°04′N 95°05′W / 39.07, -95.08 0105 1 mile (1.6 km) Brief touchdown, no damage reported.
F0 S of Basehor Leavenworth, Wyandotte 39°05′N 94°56′W / 39.08, -94.93 0120 4 miles (6.4 km) No damage reported
Missouri
F0 SSE of Stewartsville DeKalb 39°45′N 94°29′W / 39.75, -94.48 0138 1.5 miles (2.4 km) Brief touchdown, no damage reported.
F2 E of Stewartsville DeKalb 39°45′N 94°29′W / 39.75, -94.48 0143 13 miles (20.9 km) Two pole barns were destroyed and one home was damaged. Caused $75,000 in damages.
F0 Vibbard area Ray 39°23′N 94°09′W / 39.38, -94.15 0215 10.1 miles (16.3 km) One home had its roof blown off. Caused $10,000 in damages.
Iowa
F0 SW of Audubon Audubon 41°42′N 94°58′W / 41.7, -94.97 0143 0.2 miles (0.3 km) Brief touchdown, no damage reported.

[edit] April 16 event

List of reported tornadoes - Sunday, April 16, 2006
F#
Location
County
Coord.
Time (UTC)
Path length
Damage
Illinois
F1 SW of Warrensburg Macon 39°55′N 89°06′W / 39.92, -89.1 1935 1 mile (1.6 km) Brief touchdown, no damage reported.
F0 E of Taylorville Christian 39°33′N 89°13′W / 39.55, -89.22 1953 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 SSE of Assumption Christian 39°29′N 89°02′W / 39.48, -89.03 2005 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 SE of Stonington Christian 39°35′N 89°08′W / 39.58, -89.13 2007 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 E of Piper City Ford 40°45′N 88°09′W / 40.75, -88.15 2157 0.5 miles (0.8 km) Brief touchdown, tornado knocked over a tool shed. Caused $10,000 in damages.
F2 SW of Dieterich Effingham 39°01′N 88°26′W / 39.02, -88.43 2209 4 miles (6.4 km) Damage confined to trees. No property losses reported.
F1 S of Humboldt (1st tornado) Coles 39°35′N 88°19′W / 39.58, -88.32 2215 5 miles (8.0 km) No damage reported.
F2 SW of Wheeler Jasper 39°02′N 88°21′W / 39.03, -88.35 2218 1.5 miles (2.4 km) Brief touchdown, no damage reported.
F0 E of Humboldt (2nd tornado) Coles 39°36′N 88°13′W / 39.6, -88.22 2225 1 mile (1.6 km) Brief touchdown, no damage reported.
F0 S of Ashkum Iroquois 40°50′N 87°57′W / 40.83, -87.95 2241 0.5 miles (0.8 km) Brief touchdown, no damage reported.
F0 SW of Robinson (1st tornado) Crawford 38°57′N 87°48′W / 38.95, -87.8 2309 0.1 miles (0.2 km) Brief touchdown, no damage reported.
F0 NW of Martinton Iroquois 40°56′N 87°45′W / 40.93, -87.75 2320 0.5 miles (0.8 km) Brief touchdown, no damage reported.
F0 NW of Beaverville Iroquois 40°59′N 87°41′W / 40.98, -87.68 2356 0.5 miles (0.8 km) Brief touchdown, no damage reported.
F1 Robinson area (2nd tornado) Crawford 39°00′N 87°44′W / 39.0, -87.73 0006 0.1 miles (0.2 km) Brief touchdown, no damage reported.

[edit] April 17 event

List of reported tornadoes - Monday, April 17, 2006
F#
Location
County
Coord.
Time (UTC)
Path length
Damage
North Carolina
F1 N of Whiteville Columbus 34°21′N 78°42′W / 34.35, -78.7 2105 1 mile (1.6 km) Brief touchdown, on mobile home was damaged. Caused $10,000 in damages.
F0 SW of Jacksonville Onslow 34°42′N 77°29′W / 34.7, -77.48 2130 0.5 miles (0.8 km) Brief touchdown, no damage reported.

[edit] April 18 event

List of reported tornadoes - Tuesday, April 18, 2006
F#
Location
County
Coord.
Time (UTC)
Path length
Damage
Illinois
F0 W of Lincoln Logan 40°09′N 89°24′W / 40.15, -89.4 0419 0.1 miles (0.2 km) 2 Injuries Brief touchdown, no damage reported.

[edit] Iowa City tornadoes

The path of the Iowa City tornado.
The path of the Iowa City tornado.

Several tornadoes touched down in Iowa City in the evening of April 13 between 7:30 and 9:30 p.m. CDT (0030-0230 UTC). The tornadoes affected several parts of town and were likely multiple tornadoes. At least 30 people were injured in the city, but no one was killed in Iowa City (one death was reported southeast of the city in a rural area).

Downtown Iowa City was hit the hardest, with several buildings suffering heavy damage, and the courthouse and Saint Patrick's Church - one of the local Roman Catholic parishes - both lost their roofs after the tornado hit. Several people were reportedly trapped in collapsed buildings but were rescued. The church had just finished Holy Thursday services but the parishioners were all safely in the basement of the rectory at the time. Good Friday and subsequent services continued as scheduled in the undamaged areas.

View of damage to downtown
View of damage to downtown

It was a Thursday night, which is normally a busy time for the bars of downtown Iowa City. Fortunately, the tornadoes struck relatively early in the evening, and downtown was not as packed as it might have been had the tornado struck a few hours later. There were a few reports of looting, mainly at establishments where liquor was sold/stored.

The Iowa National Guard was mobilized and local law enforcement was maximized to prevent crime such as looting in the area. Gas leaks were also reported in the downtown area.[1] The University of Iowa was also hard hit by the tornadoes - the Alpha Chi Omega sorority house was nearly destroyed and had to be evacuated, and several other buildings suffered lesser damage. The school was closed the next day as a result.[2]

Another hard hit area was the south side of town, particularly along Riverside Drive (US 6) south of downtown. The commercial area was heavily damaged, with damage reported to several shopping centers and plazas, several big box stores and numerous fast food restaurants - at least one of which, a historic 54-year old Dairy Queen restaurant was destroyed.[3] Many cars parked in the parking lots also sustained damage. In a parking lot downtown, cars were overturned or crushed from where they had been parked. Both Menards and Wal-Mart sustained damage to their roofs as well.

Electricity was cut to about 7,000 customers in the area, but most power was quickly restored after the tornadoes, high winds and hail.[4]

The National Weather Service stated that five tornadoes were present in Johnson county that night. The Iowa City tornado was confirmed to be an F3, which was the tornado that swept through the downtown area. This was the first tornado on record to strike the University. The second tornado was removed from the record, as its damage path was not confirmed by the NWS.

[edit] Impact

UI President David Skorton canceled classes as a result of the tornado. [5] on Friday, April 14. On Friday, area governments declared a joint state of emergency for Johnson County[6] The Daily Iowan (the University newspaper) continued coverage through the weekend, days on which the newspaper does not traditionally print.

[edit] References

[edit] See also

[edit] External links