Alert archive / Illinois / Tornado Warnings in 2001
Tornado Warning 9, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Oct 24, 2001, 2:31 PM CDT for Kankakee County, Illinois. It was in force for 14 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 24, 2001, 2:31 PM CDT (19:31 UTC)
- Expired
- Oct 24, 2001, 2:45 PM CDT
- In force
- 14 min
- Issued by
- NWS Chicago, IL
- Area
- Whole counties
County Kankakee County, IL
The radar
The Chicago radar (KLOT), 55 km from the middle of the area, began a volume at 19:31 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 24, 11:45 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.5 hours before the alert went out and 126 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1102 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 597 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
407 WFUS53 KLOT 241933 TORCHI ILC091-241945- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHICAGO IL 231 PM CDT WED OCT 24 2001 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * TORNADO WARNING FOR... EASTERN KANKAKEE COUNTY IN NORTHEAST ILLINOIS * UNTIL 245 PM CDT * AT 231 PM CDT...LAW ENFORCEMENT OFFICIALS REPORTED A TORNADO 5 MILES NORTH OF KANKAKEE...MOVING EAST AT 45 MPH. THE STORM WILL MOVE TO MOMMENCE BY AROUND 240 PM CDT. GO TO THE BASEMENT AND SEEK SHELTER UNDER THE STAIRS OR UNDER A HEAVY PIECE OF FURNITURE. ALLSOPP NNNN
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 11:01 PM CDT | Severe Thunderstorm Warning | LOT | Boone, Winnebago | 44 min |
| Oct 23, 11:45 PM CDT | Severe Thunderstorm Warning | LOT | Boone, McHenry | 45 min |
| Oct 24, 12:23 AM CDT | Special Marine Warning | LOT | 2 hr | |
| Oct 24, 12:23 AM CDT | Special Marine Warning | LOT | 2 hr | |
| Oct 24, 12:30 AM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 45 min |
| Oct 24, 9:08 AM CDT | Special Marine Warning | LOT | 52 min | |
| Oct 24, 9:08 AM CDT | Special Marine Warning | LOT | 52 min | |
| Oct 24, 9:10 AM CDT | Severe Thunderstorm Warning | LOT | Cook | 35 min |
| Oct 24, 11:16 AM CDT | Severe Thunderstorm Warning | LOT | Kane | 29 min |
| Oct 24, 11:37 AM CDT | Severe Thunderstorm Warning | LOT | Cook, Lake | 38 min |
| Oct 24, 11:59 AM CDT | Special Marine Warning | LOT | 61 min | |
| Oct 24, 1:33 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 27 min |
| Oct 24, 2:12 PM CDT | Special Marine Warning | LOT | 93 min | |
| Oct 24, 2:12 PM CDT | Special Marine Warning | LOT | 93 min | |
| Oct 24, 2:12 PM CDT | Special Marine Warning | LOT | 93 min |
Nearby
Tornado Warnings in Illinois, 2001Every tornado warning in 2001Tornadoes in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.