Storm Events Database
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Storm Events Database
Event Details:
| Event | Tornado |
| -- Scale | EF0 |
| -- Length | 0.93 Miles |
| -- Width | 75 Yards |
| State | ILLINOIS |
| County/Area | WILL |
| WFO | LOT |
| Report Source | NWS Storm Survey |
| NCEI Data Source | CSV |
| Begin Date | 2015-08-18 18:55 CST-6 |
| Begin Location | 2NE PLAINFIELD CLOW ARPT |
| Begin Lat/Lon | 41.7166/-88.1079 |
| End Date | 2015-08-18 18:57 CST-6 |
| End Location | 1WNW BARBERS CORNERS |
| End Lat/Lon | 41.7271/-88.0966 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | 0.00K |
| Crop Damage | 0.00K |
| Episode Narrative | Isolated supercell thunderstorms developed during the late afternoon over Livingston and McLean counties and tracked northeast toward the Chicago metro through the early evening. There were two separate and brief EF-0 tornado touchdowns in Livingston County: one near Cornell and the other north of Chenoa. No damage was observed with these brief touchdowns. The supercell thunderstorm that produced a brief EF-0 tornado near Cornell maintained persistent rotation as it tracked across Grundy County, with numerous photos of a very low wall cloud, and reports of possible brief funnel clouds at times near Kinsman and Mazon. A line of strong to severe storms producing torrential rainfall moved in behind the supercell thunderstorms, producing sporadic wind damage in portions of northern Illinois and also flash flooding in portions of Rockford. Two additional EF-0 tornadoes associated with rotation embedded within the line of storms were confirmed: the first from extreme southeast Naperville to far eastern Woodridge, and the second a brief path through Downers Grove. The 2.87 of rain that fell at Rockford Airport on August 18th set a new record for the date, breaking the previous record set in 2005. |
| Event Narrative | A tornado touched down in extreme southeast Naperville, and several hardwood trees were snapped or damaged and a softwood tree uprooted. Maximum winds were estimated at 80 mph. This tornado continued into DuPage county. |
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.
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 360.00K | 0.00K | |||||||
| CORNELL | LIVINGSTON CO. | IL | 08/18/2015 | 15:32 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| OCOYA | LIVINGSTON CO. | IL | 08/18/2015 | 16:05 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| CAMP GRANT | WINNEBAGO CO. | IL | 08/18/2015 | 18:03 | CST-6 | Flash Flood | 0 | 0 | 300.00K | 0.00K | |
| CENTRAL CITY | GRUNDY CO. | IL | 08/18/2015 | 18:30 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 10.00K | 0.00K |
| PLAINFIELD CLOW ARPT | WILL CO. | IL | 08/18/2015 | 18:55 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| WOODRIDGE | DU PAGE CO. | IL | 08/18/2015 | 18:57 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 0.00K |
| BARBERS CORNERS | WILL CO. | IL | 08/18/2015 | 19:05 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DOWNERS GROVE | DU PAGE CO. | IL | 08/18/2015 | 19:06 | CST-6 | Tornado | EF0 | 0 | 0 | 50.00K | 0.00K |
| Totals: | 0 | 0 | 360.00K | 0.00K |
