Alert archive / Illinois / Tornado Warnings in 1995
Tornado Warning 11, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Aug 9, 1995, 4:09 PM CDT for LaSalle County, Illinois. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1995, 4:09 PM CDT (21:09 UTC)
- Expired
- Aug 9, 1995, 5:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Chicago, IL
- Area
- Whole counties
County LaSalle County, IL
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.2 hours before the alert went out and 135 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
- 3029 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 854 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHI 092109 TORCHI ILC099-092200- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHICAGO IL 409 PM CDT WED AUG 9 1995 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST ILLINOIS ...LA SALLE COUNTY AT 407 PM CDT...DOPPLER RADAR INDICATED A TORNADO 2 MILES NORTH OF MENDOTA...OR 22 MILES NORTHWEST OF OTTAWA. THE STORM WAS MOVING TO THE SOUTHEAST AT 25 MPH. TOWNS IN THE PATH OF THE STORM ARE MENDOTA...TROY GROVE AND PRAIRIE CENTRER. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR! ABANDON MOBILE HOMES! GO INSIDE A NEARBY STURDY BUILDING! AS A LAST RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD. RATZER
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 9, 11:08 AM CDT, 5 hours 1 minute before
ILZ001>094-IAZ065>068-INZ001-101000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 1100 AM CDT WED AUG 9 1995 ...SEVERE WEATHER OUTLOOK FOR ILLINOIS... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN HALF OF ILLINOIS THIS AFTERNOON AND TONIGHT. ZOGG/MORRISON
Special weather statement, Aug 9, 11:30 AM CDT, 4 hours 39 minutes before
ILZ001>094-IAZ065>068-INZ001-101000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 1130 AM CDT WED AUG 9 1995 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE CHICAGO METROPOLITAN AREA UNTIL 200 PM CDT... THE WATCH INCLUDES MCHENRY...LAKE...COOK...KANE...DUPAGE...KENDALL AND WILL COUNTIES. THE WATCH HAS BEEN CANCELLED FOR MUCH OF NORTH CENTRAL ILLINOIS INCLUDING ROCKFORD...DIXON...DEKALB AND OTTAWA. THUNDERSTORMS CONTINUE TO DEVELOP OVER SOUTHEAST WISCONSIN AND MAINLY THE FAR NORTH SUBURBS OF CHICAGO. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. ALLSOPP
Special weather statement, Aug 9, 11:33 AM CDT, 4 hours 36 minutes before
ILZ001>094-IAZ065>068-INZ001-101000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 1130 AM CDT WED AUG 9 1995 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE CHICAGO METROPOLITAN AREA UNTIL 200 PM CDT... THE WATCH INCLUDES MCHENRY...LAKE...COOK...KANE...DUPAGE...KENDALL AND WILL COUNTIES. THE WATCH HAS BEEN CANCELLED FOR MUCH OF NORTH CENTRAL ILLINOIS INCLUDING ROCKFORD...DIXON...DEKALB AND OTTAWA. THUNDERSTORMS CONTINUE TO DEVELOP OVER SOUTHEAST WISCONSIN AND MAINLY THE FAR NORTH SUBURBS OF CHICAGO. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. ALLSOPP
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 1:16 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 44 min |
| Aug 9, 1:31 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 29 min |
| Aug 9, 3:04 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 41 min |
| Aug 9, 3:29 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, LaSalle | 46 min |
| Aug 9, 3:54 PM CDT | Tornado Warning | LOT | Grundy, LaSalle | 51 min |
| Aug 9, 5:32 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 43 min |
| Aug 9, 6:17 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 28 min |
Nearby
Tornado Warnings in Illinois, 1995Every tornado warning in 1995Tornadoes in 1995
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.