Storm Events Database

Storm Events Database

Event Details:

Event Tornado
-- Scale EF1
-- Length 1.67 Miles
-- Width 200 Yards
State ILLINOIS
County/Area OGLE
WFO LOT
Report Source NWS Storm Survey
NCEI Data Source CSV
Begin Date 2011-05-22 17:28 CST-6
Begin Location 0S POLO RADIO RANCH ARP
Begin Lat/Lon 41.9739/-89.5696
End Date 2011-05-22 17:31 CST-6
End Location 2ESE POLO RADIO RANCH ARP
End Lat/Lon 41.9741/-89.538
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 50.00K
Crop Damage 0.00K
Episode Narrative Severe thunderstorms moved across many areas of northern Illinois during the afternoon and evening hours of May 22nd. Heavy rain produced flash flooding in some areas and tornadoes were reported with some of the strongest storms that moved across far northern Illinois during the early evening hours.
Event Narrative The tornado touched down south of unincorporated Polo, just south of the intersection of Union Road and Judson Road. The roof of a cattle shed was blown off along Judson Road. Several beef cattle were in the shed and one was injured severely enough it had to be euthanized. A power pole on the east side of Union Road was blown down, leaning over the road toward the west. At this point the tornado was rated low end EF1 with winds estimated at 85-90 mph. The tornado widened slightly as it progressed to the east along Judson Road, and uprooted a 20 inch diameter fir tree. At this point the tornado was still at EF1 strength, and there were branches down. The tornado then moved east and its width widened to its maximum 200 yards. There was roof damage to sheet metal roofing on 4 buildings and a wood outbuilding that was left leaning over by the tornado. In this area several 2x4���s were speared into the ground from different directions and insulation was plastered on the east and northeast face of buildings. Another property just to the northeast of this point experienced six 16 inch diameter Norway Spruce trees snapped off, and a new wood power pole was snapped in half. It was here where the tornado reached its maximum intensity with winds at 100 mph. The tornado continued to the east maintaining its intensity (EF1 strength) another quarter mile to the east where a grain bin was ripped off its foundation and a portion of the roof blown off to the north up against a fence. After this the winds weakened as the tornado lifted. A couple of additional grain bins were blown over, small branches snapped off, and shingles blown off roofs. Winds were estimated at 70-80 mph. The tornado lifted at 10506 Judson Road at Bailey Road.


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Event Map:

Note: The tornado track is approximate based on the beginning (B) and ending (E) locations. The actual tornado path may differ from a straight line.
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Measure
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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 1 1.007M 0.00K
PONTIAC LIVINGSTON CO. IL 05/22/2011 13:51 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
PONTIAC LIVINGSTON CO. IL 05/22/2011 13:51 CST-6 Thunderstorm Wind 52 kts. MG 0 0 0.00K 0.00K
GOLDEN ACRES COOK CO. IL 05/22/2011 14:07 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
FLOWERFIELD DU PAGE CO. IL 05/22/2011 14:10 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
FORREST LIVINGSTON CO. IL 05/22/2011 14:18 CST-6 Thunderstorm Wind 52 kts. MG 0 0 0.00K 0.00K
WAUKEGAN LAKE CO. IL 05/22/2011 14:36 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
CLIFTON IROQUOIS CO. IL 05/22/2011 14:40 CST-6 Thunderstorm Wind 60 kts. EG 0 0 10.00K 0.00K
WEST KANKAKEE KANKAKEE CO. IL 05/22/2011 14:40 CST-6 Thunderstorm Wind 50 kts. EG 0 0 5.00K 0.00K
ASHKUM IROQUOIS CO. IL 05/22/2011 14:43 CST-6 Thunderstorm Wind 60 kts. EG 0 0 5.00K 0.00K
MORTON GROVE COOK CO. IL 05/22/2011 14:45 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
WEST KANKAKEE KANKAKEE CO. IL 05/22/2011 14:46 CST-6 Hail 1.50 in. 0 0 0.00K 0.00K
BEECHER WILL CO. IL 05/22/2011 14:53 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
ROOKS CREEK LIVINGSTON CO. IL 05/22/2011 15:00 CST-6 Flood 0 0 0.00K 0.00K
BEECHER WILL CO. IL 05/22/2011 15:02 CST-6 Lightning 0 0 300.00K 0.00K
POLO OGLE CO. IL 05/22/2011 15:25 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
CRESCENT CITY IROQUOIS CO. IL 05/22/2011 15:34 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
GARBER FORD CO. IL 05/22/2011 15:36 CST-6 Thunderstorm Wind 60 kts. EG 0 0 25.00K 0.00K
RIDGEVILLE IROQUOIS CO. IL 05/22/2011 15:47 CST-6 Thunderstorm Wind 55 kts. EG 0 0 0.00K 0.00K
ROBERTS FORD CO. IL 05/22/2011 15:47 CST-6 Thunderstorm Wind 55 kts. EG 0 0 0.00K 0.00K
WATSEKA IROQUOIS CO. IL 05/22/2011 15:52 CST-6 Flash Flood 0 0 0.00K 0.00K
CISSNA PARK IROQUOIS CO. IL 05/22/2011 15:55 CST-6 Thunderstorm Wind 55 kts. EG 0 0 0.00K 0.00K
MT MORRIS OGLE CO. IL 05/22/2011 16:09 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
LOVES PARK WINNEBAGO CO. IL 05/22/2011 16:36 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
PECATONICA WINNEBAGO CO. IL 05/22/2011 17:05 CST-6 Hail 1.25 in. 0 0 0.00K 0.00K
FORRESTON OGLE CO. IL 05/22/2011 17:25 CST-6 Tornado EF1 0 0 50.00K 0.00K
POLO RADIO RANCH ARP OGLE CO. IL 05/22/2011 17:28 CST-6 Tornado EF1 0 0 50.00K 0.00K
MT MORRIS OGLE CO. IL 05/22/2011 17:34 CST-6 Thunderstorm Wind 70 kts. EG 0 0 0.00K 0.00K
PECATONICA WINNEBAGO CO. IL 05/22/2011 17:35 CST-6 Thunderstorm Wind 60 kts. EG 0 0 1.00K 0.00K
SEWARD WINNEBAGO CO. IL 05/22/2011 17:37 CST-6 Tornado EF1 0 0 100.00K 0.00K
STILLMAN VLY OGLE CO. IL 05/22/2011 17:40 CST-6 Tornado EF1 0 0 50.00K 0.00K
WINNEBAGO WINNEBAGO CO. IL 05/22/2011 17:43 CST-6 Thunderstorm Wind 60 kts. EG 0 0 0.00K 0.00K
(RFD)GTR ROCKFORD AR WINNEBAGO CO. IL 05/22/2011 17:49 CST-6 Thunderstorm Wind 65 kts. EG 0 1 50.00K 0.00K
ROCKFORD WINNEBAGO CO. IL 05/22/2011 17:50 CST-6 Hail 1.50 in. 0 0 0.00K 0.00K
STILLMAN VLY OGLE CO. IL 05/22/2011 17:50 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
(RFD)GTR ROCKFORD AR WINNEBAGO CO. IL 05/22/2011 17:54 CST-6 Thunderstorm Wind 53 kts. MG 0 0 0.00K 0.00K
NEW MILFORD WINNEBAGO CO. IL 05/22/2011 17:55 CST-6 Thunderstorm Wind 60 kts. EG 0 0 50.00K 0.00K
WEMPLETON WINNEBAGO CO. IL 05/22/2011 17:55 CST-6 Tornado EF1 0 0 0.00K 0.00K
COLONIAL GARDENS WINNEBAGO CO. IL 05/22/2011 17:57 CST-6 Thunderstorm Wind 60 kts. EG 0 0 5.00K 0.00K
ROSCOE WINNEBAGO CO. IL 05/22/2011 17:58 CST-6 Thunderstorm Wind 52 kts. EG 0 0 5.00K 0.00K
SOUTH BELOIT WINNEBAGO CO. IL 05/22/2011 17:58 CST-6 Thunderstorm Wind 65 kts. EG 0 0 25.00K 0.00K
SOUTH BELOIT WINNEBAGO CO. IL 05/22/2011 17:59 CST-6 Tornado EF1 0 0 15.00K 0.00K
CALEDONIA BOONE CO. IL 05/22/2011 18:04 CST-6 Thunderstorm Wind 55 kts. EG 0 0 0.00K 0.00K
BELVIDERE BOONE CO. IL 05/22/2011 18:10 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
HEBRON ARPT MCHENRY CO. IL 05/22/2011 18:25 CST-6 Thunderstorm Wind 60 kts. EG 0 0 1.00K 0.00K
RICHMOND MCHENRY CO. IL 05/22/2011 18:29 CST-6 Thunderstorm Wind 60 kts. EG 0 0 0.00K 0.00K
MONROE CENTER OGLE CO. IL 05/22/2011 19:10 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
NORTH BARRINGTON LAKE CO. IL 05/22/2011 19:28 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
MUNDELEIN LAKE CO. IL 05/22/2011 19:35 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
SEWARD WINNEBAGO CO. IL 05/22/2011 21:00 CST-6 Lightning 0 0 10.00K 0.00K
TECHNY COOK CO. IL 05/22/2011 21:10 CST-6 Lightning 0 0 250.00K 0.00K
Totals: 0 1 1.007M 0.00K