A stalled frontal boundary combined with a moist and unstable atmosphere and strong wind shear to produce numerous tornadoes and funnel clouds over South Central and Southeast Wisconsin. A series of vorticity maxima moving west to east through the western Great Lakes enhanced isentropic lift, as a strengthening southerly low-level jet interacted with a nearly stationary west to east warm front.

Tornado in DANE, WISCONSIN
From 22-JUL-10 17:02:00 to 22-JUL-10 17:10:00 (CST-6)
Location: HANERVILLE
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 6.00K
Reported by: NWS Storm Survey

An EF1 tornado developed about 4.6 miles west-northwest of Albion, about 1/4 mile north of the intersection of Velum Rd. and Leslie Rd., and continued east-southeast about 4 miles before dissipating just north of Bliven Rd around 1 mile east of CTH X near the Jana Airport. The tornado partially uprooted trees, broke large branches, damaged a barn and damaged corn along the path that averaged 45 yards. The maximum path width was 75 yards. The EF1 estimated wind speed of 90 mph was based on DI 27(TH) DOD3. The exact start point is Lat 42.88826 and Lon -89.16181. The exact end point is Lat 42.87732 and Lon 89.08052.

Funnel Cloud in DODGE, WISCONSIN
From 22-JUL-10 15:35:00 to 22-JUL-10 15:35:00 (CST-6)
Location: LOWELL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in DANE, WISCONSIN
From 22-JUL-10 18:10:00 to 22-JUL-10 18:11:00 (CST-6)
Location: VERONA ARPT
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A brief EF0 tornado developed about 1 mile southeast of Verona, just southeast of the intersection of Harvest Ln. and Whalen Rd. The tornado caused minor tree limb damage around Whalen Rd., but no structural damage was noted. The short 0.22 mile path averaged about 15 yards in width. The tornado ended just northeast of the intersection of Whalen Rd. and Gatsby Glenn Dr. The EF0 estimated wind speeds of 65 to 70 mph were based on DI 27(TH) DOD1. The exact start location is Lat 42.97827 and Lon -89.52267. The exact end location is Lat 42.98007 and Lon -89.51900.

Tornado in WAUKESHA, WISCONSIN
From 22-JUL-10 18:02:00 to 22-JUL-10 18:05:00 (CST-6)
Location: BIG BEND
Tornado F-scale: EF2
Property damage: 75.00K
Crop damage: 3.00K
Reported by: NWS Storm Survey

An EF2 tornado developed about 1 mile south of Big Bend, 1/8 mile west of of STH 164 between Henneberry Ave. and Kelsey Ave. The tornado partially uprooted trees, broke tree branches, caused corn crop damage and destroyed a garage and pole shed along a 1 mile path that averaged 70 yards in width. Additionally, it flipped over a camping trailer and carried a tool box about 1/2 mile away. The tornado ended about 1.7 miles southeast of Big Bend, 1/3 mile east-northeast of the intersection of Crowbar Dr. and Parker Dr.  The EF2 estimated wind speeds of 115 to 120 mph were based on DI 27(TH) DOD4. The exact start location is Lat 42.86466 and Lon -88.20040. The exact end location is Lat 42.86569 and Lon -88.18079.

Tornado in DANE, WISCONSIN
From 22-JUL-10 15:08:00 to 22-JUL-10 15:10:00 (CST-6)
Location: DANE
Tornado F-scale: EF1
Property damage: 1.00K
Crop damage: 0.10K
Reported by: Public

A National Weather Service survey team confirmed a public report of a tornado near the village of Dane. The EF1 tornado developed just west of STH 113, a little north of the intersection with Reppen Road, and moved east-southeast before dissipating near the intersection of Lee Road and County Road Dam. The tornado caused minor crop damage to a corn field, uprooted trees and snapped large branches, as well as brought a power line down along the path, which averaged 20 yards in width. The EF1 estimated wind speed of 90 mph was based on DI 27(TH), DOD3.The exact start location is Lat. 43.26637 Lon. -89.52248. The exact end location is Lat 43.26337 Lon -89.49240.

Tornado in DANE, WISCONSIN
From 22-JUL-10 17:52:00 to 22-JUL-10 17:55:00 (CST-6)
Location: MT HOREB
Tornado F-scale: EF1
Property damage: 5.00K
Reported by: NWS Storm Survey

An EF1 tornado developed about 2 miles south of Mt. Horeb, just east of CTH JG about 1/4 mile east of the intersection of Sand Rock Rd. and Barton Rd. The tornado caused minor home damage, knocked trees down and broke tree limbs, uplifted patio pavers, and tumbled a farm wagon along a 1.5 mile path that averaged 50 yards in width. The tornado ended about 2.5 miles southeast of Mt. Horeb, just east of STH 92, about 1 mile north of the intersection of STH 92 and Malone Rd.  The EF1 estimated wind speeds of 95 to 100 mph were based on DI 2(FR12) DOD4. The exact start location is Lat 42.97497 and Lon -89.72878. The exact end location is Lat 42.97961 and Lon -89.70055.

Thunderstorm Wind in MILWAUKEE, WISCONSIN
From 22-JUL-10 18:55:00 to 22-JUL-10 18:57:00 (CST-6)
Location: OAKWOOD
Magnitude: 65.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A wet microburst with estimated wind gusts to 75 mph pushed a 25-foot camping trailer several feet, resulting in minor damage.  Additionally, a flag-pole was snapped at its base, and several large trees sustained damage to large limbs or trunks.

Tornado in JEFFERSON, WISCONSIN
From 22-JUL-10 16:10:00 to 22-JUL-10 16:18:00 (CST-6)
Location: WATERLOO
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF0 tornado began about 3.5 miles southwest of Waterloo on Veith Road, about a mile west of the intersection of VeIth Road and CTH O. The tornado moved east-southeast before dissipating just east of STH 89, about 2 miles north of the interchange of STH 89 and I-94. Damage was mostly to trees along an intermittent path, which averaged 20 yards in width. No structural damage was found. The EF-rating was based on DI 27 (TH) DOD2 which suggests maximum winds speeds of 65 mph. The exact start location is Lat 43.135917 and Lon -89.013528. The exact end location is 43.120889 and Lon -88.901667.

Funnel Cloud in JEFFERSON, WISCONSIN
From 22-JUL-10 16:16:00 to 22-JUL-10 16:16:00 (CST-6)
Location: WATERLOO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in JEFFERSON, WISCONSIN
From 22-JUL-10 16:35:00 to 22-JUL-10 16:36:00 (CST-6)
Location: FARMINGTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter saw a brief tornado in a swampy marsh about 1.75 miles southeast of Farmington, about 1/2 mile west of Hillside Drive. The spotter observed a swirling, wispy, water-like spray. Little movement was noted by the spotter before the tornado dissipated. The tornado was given an estimated rating of EF0 with a maximum wind speed of 65 mph. The exact location is Lat 43.05803 and Lon -88.64837.

Thunderstorm Wind in WAUKESHA, WISCONSIN
From 22-JUL-10 17:13:00 to 22-JUL-10 17:13:00 (CST-6)
Location: DOWNTOWN WAUKESHA
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Funnel Cloud in WAUKESHA, WISCONSIN
From 22-JUL-10 17:35:00 to 22-JUL-10 17:35:00 (CST-6)
Location: EAGLE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in DANE, WISCONSIN
From 22-JUL-10 15:24:00 to 22-JUL-10 15:30:00 (CST-6)
Location: YORK CENTER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 1.00K
Reported by: NWS Storm Survey

An EF0 tornado developed about 5.6 miles east of Bristol, near STH 73 just north of CTH V and moved east-southeast before dissipating just south of the intersection of Kasper Road and Tri-County Road. Sporadic damage to tree limbs and some corn was pushed down, but no structural damage was noted along the path, which averaged 20 yards. The EF-rating was based on DI 27 (TH), DOD2 which suggests maximum winds were around 65 mph. The exact start location is Lat 43.271694 and Lon -89.068583. The exact end location is Lat 43.269639 and Lon -89.008972.

Tornado in JEFFERSON, WISCONSIN
From 22-JUL-10 17:22:00 to 22-JUL-10 17:32:00 (CST-6)
Location: LAKE KOSHKONONG
Tornado F-scale: EF0
Reported by: Trained Spotter

An EF0 tornado developed near the intersection of STH 26 and Rock-Jefferson County Line Rd., about 6.6 miles southwest of Fort Atkinson. The tornado damaged tree limbs along the roughly 2.75 mile path that averaged 40 yards in width. The tornado dissipated about 5.3 miles south of Fort Atkinson, just south of the intersection of Poeppel Rd. and Grogan Rd. The EF0 estimated winds of 75-80 mph were based on DI 27(TH) DOD2. The exact start location is Lat 42.84620 and Lon -88.91638. The exact end location is Lat 42.85381 and Lon -88.86265.

Tornado in JEFFERSON, WISCONSIN
From 22-JUL-10 17:38:00 to 22-JUL-10 17:45:00 (CST-6)
Location: COLD SPG
Tornado F-scale: EF0
Reported by: NWS Storm Survey

An EF0 tornado developed about 2.7 miles southwest of Cold Spring, just northwest of the intersection of U.S. Highway 12 and Hoge Rd. The tornado moved east for around 4 miles, ending about 1.6 miles north-northeast of Whitewater, 1/4 mile west of the intersection of STH 59 and CTH D. Damage was limited to large tree branches along the path, which averaged 45 yards. The EF0 estimated wind speed of 65 to 70 mph was based on DI 27(TH) DOD2. The exact start location is Lat 42.85819 and Lon -88.80070. The exact end location is Lat 42.85497 and Lon -88.72386.

Funnel Cloud in WALWORTH, WISCONSIN
From 22-JUL-10 17:31:00 to 22-JUL-10 17:31:00 (CST-6)
Location: TROY CENTER
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Funnel Cloud in DANE, WISCONSIN
From 22-JUL-10 15:46:00 to 22-JUL-10 15:46:00 (CST-6)
Location: STOUGHTON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in MILWAUKEE, WISCONSIN
From 22-JUL-10 16:06:00 to 22-JUL-10 16:06:00 (CST-6)
Location: BROWN DEER
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter measured a thunderstorm wind gust at 61 mph (53 knots) 4 miles west of Brown Deer. The wind gusts snapped small trees, with trunks about 6 inches in diameter.

Thunderstorm Wind in WALWORTH, WISCONSIN
From 22-JUL-10 19:32:00 to 22-JUL-10 19:40:00 (CST-6)
Location: WHITEWATER
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained spotter estimated thunderstorm wind gusts up to 52 knots (60 mph) that lasted for eight minutes.

Funnel Cloud in DODGE, WISCONSIN
From 22-JUL-10 15:09:00 to 22-JUL-10 15:09:00 (CST-6)
Location: NEOSHO
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Lightning in GREEN, WISCONSIN
From 22-JUL-10 19:30:00 to 22-JUL-10 19:30:00 (CST-6)
Location: MONROE
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A lightning strike to a tree killed 8 cows that had gathered under the tree seeking shelter from a thunderstorm. The value of the cows was between $12,000 and $16,000.

Lightning in SHEBOYGAN, WISCONSIN
From 22-JUL-10 16:10:00 to 22-JUL-10 16:10:00 (CST-6)
Location: PLYMOUTH
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

A lightning strike to a power pole near Plymouth destroyed insulators and damaged wire conductors, knocking out power to about 500 customers. Power was off to these customers for around 45 minutes.

Lightning in MILWAUKEE, WISCONSIN
From 22-JUL-10 17:30:00 to 22-JUL-10 17:30:00 (CST-6)
Location: WEST MILWAUKEE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Two sisters, 25 years old and 30 years old, attempting to run home from a nearby sandwich shop, were injured when struck by lightning. They were taken to a nearby hospital and admitted for treatment of their injuries.