Storm Events Database

Event Details

Event Hail
Magnitude 1.00 in.
State WISCONSIN
County/Area COLUMBIA
WFO MKX
Report Source Public
NCDC Data Source CSV
Begin Date 2011-04-03 21:15:00.0 CST-6
Begin Location 0N FALL RIVER
Begin Lat/Lon 43.38/-89.05
End Date 2011-04-03 21:15:00.0 CST-6
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage
Crop Damage
Episode Narrative Two rounds of thunderstorms affected southern Wisconsin on April 3rd, as low pressure moved northeast from Iowa across Wisconsin. Morning elevated thunderstorms, with warm air advection on the nose of a low-level jet ahead of the approaching low, did not produce severe weather...but a shower of small hail created icy road conditions in Dodge County, where a two-vehicle accident killed a 26 year old female and injured two others. During the afternoon hours, a warm front lifted into southern Wisconsin as the low moved into the state...with mean layer CAPE increasing to 1000 to 1500 J/kg along with strong low layer shear and deep layer bulk shear. This triggered the second round of thunderstorms in the evening that were severe, producing mainly large hail up to the size of a baseballs, along with damaging winds. Madison-based American Family Insurance Company reported 375 property claims as well as 200 vehicle damage claims in Dane and Dodge counties alone. There were probably more damaged vehicles that weren't reported to insurance companies. Roof damage caused by the golf ball to baseball-sized hail was extensive in the western suburbs of Madison, with some homes and businesses requiring whole-roof replacements. It was not possible to break up the insurance company claims and assign monetary losses to individual storms. Total monetary losses were probably in the low millions of dollars.
Event Narrative


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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 12.00K 0.00K
BEAVER DAM DODGE CO. WI 04/03/2011 10:35 CST-6 Hail 0.75 in. 0 0 12.00K 0.00K
BELMONT LAFAYETTE CO. WI 04/03/2011 19:55 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
DARLINGTON LAFAYETTE CO. WI 04/03/2011 19:55 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MT HOREB DANE CO. WI 04/03/2011 20:20 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MIDDLETON DANE CO. WI 04/03/2011 20:30 CST-6 Hail 2.00 in. 0 0 0.00K 0.00K
MIDDLETON DANE CO. WI 04/03/2011 20:33 CST-6 Hail 2.50 in. 0 0 0.00K 0.00K
MIDDLETON DANE CO. WI 04/03/2011 20:35 CST-6 Hail 2.75 in. 0 0 0.00K 0.00K
CAMP RANDALL STADIUM DANE CO. WI 04/03/2011 20:38 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MONONA DANE CO. WI 04/03/2011 20:39 CST-6 Hail 2.00 in. 0 0 0.00K 0.00K
CAMP RANDALL STADIUM DANE CO. WI 04/03/2011 20:45 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
GRATIOT LAFAYETTE CO. WI 04/03/2011 20:50 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MIDDLETON DANE CO. WI 04/03/2011 20:51 CST-6 Hail 2.50 in. 0 0 0.00K 0.00K
DE FOREST DANE CO. WI 04/03/2011 20:55 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
FALL RIVER COLUMBIA CO. WI 04/03/2011 21:15 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
LAKE MILLS JEFFERSON CO. WI 04/03/2011 21:20 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
WATERTOWN DODGE CO. WI 04/03/2011 22:04 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
IRON RIDGE DODGE CO. WI 04/04/2011 00:15 CST-6 Thunderstorm Wind 70 kts. EG 0 0 0.00K 0.00K
NENNO WASHINGTON CO. WI 04/04/2011 00:21 CST-6 Thunderstorm Wind 70 kts. EG 0 0 0.00K 0.00K
Totals: 0 0 12.00K 0.00K