Alert archive / Illinois / Tornado Warnings in 2006
Tornado Warning 21, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Jul 27, 2006, 4:21 PM CDT for Will County, Illinois. It was in force for 24 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 27, 2006, 4:21 PM CDT (21:21 UTC)
- Expired
- Jul 27, 2006, 4:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Chicago, IL
- Area
- Counties, with a storm outline in the text
County Will County, IL
The radar
The Chicago radar (KLOT), 7 km from the middle of the area, began a volume at 21:23 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 27, 4:21 PM CDT | FUNNEL CLOUD | Joliet, IL | 1 MILE EAST OF GOLF COURSE - US-52 -JEFFERSON ST-AND HOULBOLT RD. |
| Jul 27, 4:21 PM CDT | FUNNEL CLOUD | Joliet, IL | I MILE EAST OF GOLF COURSE - US-52 -JEFFERSON ST-AND HOULBOLT RD. |
| Jul 27, 4:40 PM CDT | FUNNEL CLOUD | Joliet, IL | IL-6 AND LARKIN |
| Jul 27, 4:45 PM CDT | TSTM WND DMG | Joliet, IL | A TREE FELL ON A GARAGE AT ST MARY MAGDALENE CHURCH. |
| Jul 27, 4:55 PM CDT | TSTM WND DMG | Lockport, IL | ONE FOOT DIAMTER TREE DOWN. FARRELL ST N OF IL-7. |
| Jul 27, 4:55 PM CDT | TSTM WND DMG | Lockport, IL | ONE FOOT DIAMTER TREE DOWN. FARRELL ST N OF IL-7. OTHER LIMBS DOWN IN LOCKPORT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 27, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 162 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
- 1086 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1111 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLOT 272121 TORLOT ILC197-272145- /O.NEW.KLOT.TO.W.0021.060727T2121Z-060727T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 421 PM CDT THU JUL 27 2006 THE NATIONAL WEATHER SERVICE IN ROMEOVILLE HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN WILL COUNTY IN NORTHEAST ILLINOIS * UNTIL 445 PM CDT * AT 419 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO AND RADAR INDICATED ROTATION NEAR SHOREWOOD..MOVING EAST AT 20 MPH. * THE TORNADO IS WILL BE NEAR... JOLIET AND ROCKDALE BY 430 PM LOCKPORT...ROMEOVILLE AND INGALLS PARK BY 440 PM IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR CLOSET... BATHROOM...OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM THURSDAY EVENING FOR NORTHEASTERN ILLINOIS AND NORTHWEST INDIANA. LAT...LON 4157 8827 4148 8822 4153 8795 4170 8806 $$ BRUMER
1 follow-up statement
000 WWUS53 KLOT 272132 SVSLOT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 430 PM CDT THU JUL 27 2006 ILC197-272145- /O.CON.KLOT.TO.W.0021.000000T0000Z-060727T2145Z/ WILL IL- 430 PM CDT THU JUL 27 2006 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR CENTRAL WILL COUNTY... AT 427 PM CDT...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED JUST SOUTH OF JOLIET NEAR INTERSTATE 80...MOVING EAST AT 15 MPH. THERE HAVE BEEN PERIODIC REPORTS OF FUNNELS FROM THIS STORM. THE TORNADO WILL BE NEAR... FAIRMONT BY 445 PM... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM THURSDAY EVENING FOR NORTHEASTERN ILLINOIS AND NORTHWEST INDIANA. LAT...LON 4157 8821 4148 8822 4153 8797 4165 8805 $$ BRUMER
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 4:58 AM CDT | Dense Fog Advisory | LOT | Boone, DeKalb, Lee, Ogle, Winnebago | 3 hr |
| Jul 27, 3:17 PM CDT | Excessive Heat Watch | LOT | 24 hr | |
| Jul 27, 4:09 PM CDT | Special Marine Warning | LOT | 81 min | |
| Jul 27, 4:46 PM CDT | Tornado Warning | LOT | Cook, Will | 44 min |
| Jul 27, 4:51 PM CDT | Special Marine Warning | LOT | 24 min | |
| Jul 27, 5:03 PM CDT | Tornado Warning | LOT | Will | 42 min |
| Jul 27, 5:30 PM CDT | Tornado Warning | LOT | Cook | 30 min |
| Jul 27, 5:34 PM CDT | Special Marine Warning | LOT | 41 min | |
| Jul 27, 5:49 PM CDT | Flash Flood Warning | LOT | Cook, Grundy, Will | 3 hr |
| Jul 27, 6:17 PM CDT | Special Marine Warning | LOT | 41 min |
Nearby
Tornado Warnings in Illinois, 2006Every tornado warning in 2006Tornadoes in 2006
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.