Alert archive / Illinois / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 9, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Jun 17, 1992, 3:17 PM CDT for Cook County, Illinois. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 17, 1992, 3:17 PM CDT (20:17 UTC)
- Expired
- Jun 17, 1992, 3:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Chicago, IL
- Area
- Whole counties
County Cook County, IL
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.3 hours before the alert went out and 290 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
- 475 J/kg
- Mixed-layer CIN
- -301 J/kg
- Mixed-layer LCL
- 709 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 292 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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, Jun 17, 12:09 PM CDT, 3 hours 8 minutes before
ILZ003-005-008-ILC105-INC127-171830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 1207 PM CDT WED JUN 17 1992 ...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT FOR NORTHEAST ILLINOIS AND THE CHICAGO METROPOLITAN AREA... AT NOON NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED THUNDERSTORMS EXTENDING FROM 25 MILES NORTHEAST OF DOWNTOWN CHICAGO TO 15 MILES NORTH OF JOLIET. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MPH AND WILL CONTINUE TO AFFECT PORTIONS OF COOK...WILL...AND DUPAGE COUNTIES THROUGH 100 PM. A LINE OF THUNDERSTORMS...SOME SEVERE...EXTENDED FROM MADISON WISCONSIN TO MOLINE ILLINOIS TO BURLINGTON IOWA. THIS LINE OF STORMS WAS MOVING EAST AT 30 MPH AND WILL REACH MCHENRY...KANE...AND LASALLE COUNTIES BETWEEN 130 PM AND 230 PM. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM AND TORNADO DEVELOPMENT. MONITOR NOAA WEATHER RADIO AND BE PREPARED TO MOVE TO SAFE SHELTER IF THREATENING WEATHER IS SPOTTED OR WARNINGS ARE ISSUED BY THE NATIONAL WEATHER SERVICE. TAYLOR
Special weather statement, Jun 17, 12:37 PM CDT, 2 hours 40 minutes before
ILZ003-005-008-ILC105-INC127-171830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 1235 PM CDT WED JUN 17 1992 ...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT FOR NORTHEAST ILLINOIS AND THE CHICAGO METROPOLITAN AREA... AT 1230 PM NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED THUNDERSTORMS EXTENDING FROM THE NORTH SIDE OF CHICAGO TO 10 MILES NORTH OF JOLIET. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MPH AND WILL CONTINUE TO AFFECT COOK...WILL...AND SOUTHERN DUPAGE COUNTIES THROUGH 115 PM. SCATTERED THUNDERSTORMS HAVE ALSO DEVELOPED 25 MILES NORTHWEST OF WOODSTOCK. THESE STORMS SHOULD MOVE INTO NORTHWEST MCHENRY COUNTY AROUND 130 PM. THESE THUNDERSTORMS LIKELY CONTAIN BRIEF VERY HEAVY RAIN AND STRONG GUSTY WINDS. A LINE OF THUNDERSTORMS...SOME SEVERE...EXTENDED FROM 35 MILE NORTHWEST OF ROCKFORD TO MOLINE. THE LINE WAS MOVING EAST AT 30 MPH AND WILL REACH MCHENRY...KANE...AND LASALLE COUNTIES BETWEEN 145 PM AND 230 PM. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM AND TORNADO DEVELOPMENT. MONITOR NOAA WEATHER RADIO AND BE PREPARED TO MOVE TO SAFE SHELTER IF THREATENING WEATHER IS SPOTTED OR WARNINGS ARE ISSUED BY THE NATIONAL WEATHER SERVICE. TAYLOR
Special weather statement, Jun 17, 1:03 PM CDT, 2 hours 14 minutes before
ILZ003-005-008-ILC105-INC127-171930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 100 PM CDT WED JUN 17 1992 ...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT FOR NORTHEAST ILLINOIS AND THE CHICAGO METROPOLITAN AREA... AT 1255 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS...SOME SEVERE...FROM 25 MILES NORTHWEST OF WOODSTOCK TO ROCKFORD TO 15 MILES EAST OF MOLINE. THE LINE WAS MOVING EAST AT 25 MPH AND WILL MOVE INTO MCHENRY...KANE AND LASALLE COUNTIES BETWEEN 145 PM AND 245 PM. SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER NORTHEAST ILLINOIS AT 1255 PM FROM CHICAGO TO 10 MILES NORTH OF JOLIET. THESE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MPH. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM AND TORNADO DEVELOPMENT. MONITOR NOAA WEATHER RADIO AND BE PREPARED TO MOVE TO SAFE SHELTER IF THREATENING WEATHER IS SPOTTED OR WARNINGS ARE ISSUED BY THE_ NATIONAL WEATHER SERVICE. TAYLOR
Special weather statement, Jun 17, 1:22 PM CDT, 1 hour 55 minutes before
ILZ003-005-008-ILC105-INC127-171930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 120 PM CDT WED JUN 17 1992 ...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT FOR NORTHEAST ILLINOIS AND THE CHICAGO METROPOLITAN AREA... AT 115 PM NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS...SOME SEVERE...FROM 15 MILES NORTHWEST OF WOODSTOCK TO 45 MILES WEST OF AURORA AND THEN SOUTHWESTWARD. THE LINE WAS MOVING EAST AT 25 MPH WHILE INDIVIDAUL THUNDERSTORMS IN THE LINE WERE MOVING NORTHEAST AT 45 MPH. LARGE HAIL AND DAMAGING WINDS HAVE BEEN REPORTED IN THE ROCKFORD VICINITY FROM THESE STORMS. THE THUNDERSTORMS WILL MOVE INTO SOUTHWEST MCHENRY COUNTY BY 145 PM. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM AND TORNADO DEVELOPMENT. MONITOR NOAA WEATHER RADIO AND BE PREPARED TO MOVE TO SAFE SHELTER IF THREATENING WEATHER IS SPOTTED OR WARNINGS ARE ISSUED BY THE NATIONAL WEATHER SERVICE. TAYLOR
Special weather statement, Jun 17, 2:03 PM CDT, 1 hour 14 minutes before
ILZ003-005-008-ILC105-INC127-172000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 200 PM CDT WED JUN 17 1992 ...TORNADO WATCH IN EFFECT UNTIL 800 PM CDT FOR NORTHEAST ILLINOIS AND THE CHICAGO METROPOLITAN AREA... AT 155 PM NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED THUNDERSTORMS FROM 20 MILES NORTH OF JOLIET TO 15 MILES NORTHWEST OF PONTIAC AND THEN SOUTHWESTWARD. OTHER SCATTERED THUNDERSTORMS WERE LOCATED FROM WOODSTOCK TO 25 MILES WEST OF OTTAWA. THE STRONGEST STORM WAS LOCATED IN SOUTHERN DUPAGE COUNTY. THE STORMS WERE MOVING NORTHEAST AT 45 MPH. THESE STORM WILL LIKELY CONTAIN BRIEF HEAVY RAIN...SMALL HAIL... AND GUSTY WINDS. PEOPLE IN NORTHEAST ILLINOIS` SHOULD AVOID OUTDOOR ACTIVITIES AS THESE STORMS MOVE THROUGH AND STAY TUNED TO NOAA WEATHER FOR LATER STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TAYLOR
Special weather statement, Jun 17, 3:16 PM CDT, 1 minute before
ILZ001-002-172030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCKFORD IL 315 PM CST WED JUN 17 1992 ...TORNADO WATCH CANCELED FOR THE FOLLOWING NORTHWEST AND NORTH CENTRAL ILLINOIS COUNTIES JO DAVIESS/STEPHENSON/WINNEBAGO/BOONE/ WHITESIDE/OGLE/LEE/AND WHITESIDE... JUST ABOUT ALL OF THE INTENSE THUNDERSTORMS THAT RAKED NORTHERN ILLINOIS EARLIER THIS AFTERNOON HAVE MOVED ON EAST INTO NORTHEAST ILLINOIS AND AREAS TO THE SOUTH. A FEW LINGERING STORMS REMAIN OVER PARTS OF DE KALB COUNTY AT 315 CDT THIS AFTERNOON...BUT THESE ARE WEAKENING WHILE MOVING EAST AT 30 MPH. FIELDS
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 2:18 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 27 min |
| Jun 17, 2:36 PM CDT | Tornado Warning | LOT | Will | 39 min |
| Jun 17, 2:53 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 37 min |
| Jun 17, 3:07 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 38 min |
| Jun 17, 3:53 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 67 min |
| Jun 17, 4:42 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 63 min |
| Jun 17, 5:05 PM CDT | Tornado Warning | LOT | Iroquois | 25 min |
| Jun 17, 4:16 PM CDT | Severe Thunderstorm Warning | LOT | Lake, Porter | 44 min |
| Jun 17, 5:02 PM CDT | Tornado Warning | LOT | Porter | 28 min |
| Jun 17, 5:11 PM CDT | Severe Thunderstorm Warning | LOT | Lake, Porter | 39 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1992Every severe thunderstorm warning in 1992
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.