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Storm Events Database
Event Details:
| Event | Tornado |
| -- Scale | EF1 |
| -- Length | 4.28 Miles |
| -- Width | 100 Yards |
| State | ILLINOIS |
| County/Area | WHITESIDE |
| WFO | DVN |
| Report Source | NWS Storm Survey |
| NCEI Data Source | CSV |
| Begin Date | 2020-11-10 15:00 CST-6 |
| Begin Location | 2E MORRISON-ROCKWOOD SP |
| Begin Lat/Lon | 41.8512/-89.9391 |
| End Date | 2020-11-10 15:07 CST-6 |
| End Location | 1SE FRANKLIN CORNERS |
| End Lat/Lon | 41.9094/-89.9101 |
| Deaths Direct/Indirect | 0/0 (fatality details below, when available...) |
| Injuries Direct/Indirect | 0/0 |
| Property Damage | |
| Crop Damage | |
| Episode Narrative | A strong and quick moving cold front made its way through the Midwest. The environment ahead of the cold front was unseasonably warm, with temperatures in the upper 60s and readings in the 40s not far behind the front. This led to strong baroclinicity along the front, and subsequent convection with just the right amount of instability. This is considered a high shear low CAPE (HSLC) event, where organized severe thunderstorms are favored in this environment. Potential hazards are damaging winds, large hail, and tornadoes. Six tornadoes were confirmed and several wind reports were received (ranging between 50-60 mph, with a few gusts over 60 mph). Damage reports ranged from structural damage to tree damage. Many residents were left without power in parts of northwestern IL, leading to some schools canceling classes on the 11th. Besides the strong winds, a few severe hail reports were received. In addition, heavy rain occurred with some of the stronger storms, with rainfall totals over an inch. For how dry it has been, flash flooding was not much of a concern. While the environment was very moist and favorable for heavy rainfall, the fast storm motions led to little accumulation through much of our forecast area. |
| Event Narrative | Brief EF1 tornado, with peak winds 100 mph, a path length of 4.3 miles, and a max path width of 100 yards. This tornado touched down northeast of Morrison, damaging the roof of a barn and downing tree limbs. Further along the path, an outbuilding was destroyed and a few soft pine trees were snapped. |
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 | 0.00K | 0.00K | |||||||
| WARSAW | HANCOCK CO. | IL | 11/10/2020 | 13:15 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| DENVER | HANCOCK CO. | IL | 11/10/2020 | 13:30 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JOY | MERCER CO. | IL | 11/10/2020 | 13:45 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| GLADSTONE | HENDERSON CO. | IL | 11/10/2020 | 13:50 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| JOY | MERCER CO. | IL | 11/10/2020 | 13:50 | CST-6 | Thunderstorm Wind | 78 kts. EG | 0 | 0 | 0.00K | 0.00K |
| BURGESS | MERCER CO. | IL | 11/10/2020 | 14:02 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| REYNOLDS | ROCK ISLAND CO. | IL | 11/10/2020 | 14:03 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| (MLI) QUAD CITY ARPT | ROCK ISLAND CO. | IL | 11/10/2020 | 14:14 | CST-6 | Thunderstorm Wind | 56 kts. MG | 0 | 0 | 0.00K | 0.00K |
| BUSHNELL | MCDONOUGH CO. | IL | 11/10/2020 | 14:17 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| OPHEIM | HENRY CO. | IL | 11/10/2020 | 14:21 | CST-6 | Thunderstorm Wind | 61 kts. EG | 0 | 0 | 0.00K | 0.00K |
| GENESEO | HENRY CO. | IL | 11/10/2020 | 14:35 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ALBANY | WHITESIDE CO. | IL | 11/10/2020 | 14:38 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| ATKINSON | HENRY CO. | IL | 11/10/2020 | 14:42 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| MORRISON | WHITESIDE CO. | IL | 11/10/2020 | 14:43 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MORRISON | WHITESIDE CO. | IL | 11/10/2020 | 14:47 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MORRISON | WHITESIDE CO. | IL | 11/10/2020 | 14:49 | CST-6 | Thunderstorm Wind | 78 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MORRISON | WHITESIDE CO. | IL | 11/10/2020 | 14:50 | CST-6 | Thunderstorm Wind | 80 kts. EG | 0 | 0 | 0.00K | 0.00K |
| ROUND GROVE | WHITESIDE CO. | IL | 11/10/2020 | 14:50 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| AGNEW | WHITESIDE CO. | IL | 11/10/2020 | 14:54 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| COLETA | WHITESIDE CO. | IL | 11/10/2020 | 14:58 | CST-6 | Thunderstorm Wind | 70 kts. EG | 0 | 0 | 0.00K | 0.00K |
| MORRISON-ROCKWOOD SP | WHITESIDE CO. | IL | 11/10/2020 | 15:00 | CST-6 | Tornado | EF1 | 0 | 0 | 0.00K | 0.00K |
| YEOWARD ADDITION | WHITESIDE CO. | IL | 11/10/2020 | 15:00 | CST-6 | Thunderstorm Wind | 51 kts. MG | 0 | 0 | 0.00K | 0.00K |
| GERMAN VLY | STEPHENSON CO. | IL | 11/10/2020 | 15:27 | CST-6 | Thunderstorm Wind | 56 kts. EG | 0 | 0 | 0.00K | 0.00K |
| Totals: | 0 | 0 | 0.00K | 0.00K |
