Alert archive / Illinois / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 77, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Aug 8, 1994, 3:56 PM CDT for Champaign County, Illinois. It was in force for 49 min.
The area
The counties it named.
The facts
- Issued
- Aug 8, 1994, 3:56 PM CDT (20:56 UTC)
- Expired
- Aug 8, 1994, 4:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Champaign County, IL
The nearest sounding before it
Dayton/James M C, OH (KDAY), launched 12:00Z, 8.9 hours before the alert went out and 342 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1114 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSPI 082058 RRA SVRSPI ILC019-082145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD IL 356 PM CDT MON AUG 8 1994 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL ILLINOIS ...CENTRAL CHAMPAIGN COUNTY AT 3 55 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES NORTHWEST OF CHAMPAIGN...NEAR MAHOMET. THIS STORM WAS MOVING EAST SOUTHEAST AT 10 MPH. AT 3 54 PM...THE ILLINOIS STATE POLICE REPORTED THAT THIS STORM PRODUCED GOLFBALL-SIZE HAIL 12 MILES NORTHWEST OF CHAMPAIGN...JUST SOUTHWEST OF FISHER. PEOPLE IN THE TOWNS OF LAKE OF THE WOODS... MAHOMET...AND CHAMPAIGN/URBANA SHOULD MOVE TO A REINFORCED SHELTER. DUE TO THE SLOW MOVEMENT OF THE STORM...AREAS OF FLOODING ARE POSSIBLE. TAKE SHELTER IN A SUBSTANTIAL BUILDING. STAY AWAY FROM WINDOWS. LIGHTNING KIPLLS...SO STAY OFF OF TELEPHONES. REMEMBER...A SEVERE THUNDERSTORM MAY PRODUCE A TORNADO AT ANY TIME. $$ GEELHART &
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, Aug 8, 3:15 PM CDT, 41 minutes before
ILZ043>046-053>057-082100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 315 PM CDT MON AUG 8 1994 ...THUNDERSTORMS DEVELOPING RAPIDLY OVER EAST CENTRAL ILLINOIS... AT 310 PM CDT...RADAR INDICATED RAPID DEVELOPMENT OF THUNDERSTORMS AND SHOWERS FROM JUST SOUTH OF BLOOMINGTON TO JUST NORTH OF CHAMPAIGN ...URBANA TO DANVILLE. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MPH. THE STRONGEST STORM WAS LOCATED 13 MILES NORTHWEST OF CHAMPAIGN... BETWEEN MAHOMET AND BELLFLOWER. THIS STORM WILL BE MOVING INTO THE CHAMPAIGN...URBANA AREA AROUND 330 PM. BRIEF GUSTY WINDS TO 45 MPH...HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING WILL ACCOMPANY THIS STRONG STORM. IF THREATENING WEATHER APPROACHES GO TO A PLACE OF SHELTER UNTIL THE STORM HAS PASSED. PALMER
Special weather statement, Aug 8, 3:17 PM CDT, 39 minutes before
ILZ038-082220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 317 PM CDT MON AUG 8 1994 ...THUNDERSTORMS DEVELOPING OVER MCLEAN COUNTY... RADAR INDICATES THUNDERSTORM DEVELOPMENT HAS BEGUN IN MCLEAN COUNTY...IN THE VICINITY OF RANDOLPH...7 MILES SOUTH OF BLOOMINGTON..AND JUST SOUTHEAST OF BELLFLOWER...27 MILES EAST SOUTHEAST OF BLOOMINGTON. THESE STORMS ARE MOVING TO THE SOUTHEAST AT 30 MPH. LOCALLY HEAVY RAINFALL...GUSTING WINDS...LIGHTNING...AND SMALL HAIL COULD BE ASSOCIATED WITH THESE STORMS. BUCKINGHAM
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:38 PM CDT | Tornado Warning | ILX | Vermilion | 22 min |
| Aug 8, 5:25 PM CDT | Severe Thunderstorm Warning | ILX | Piatt | 50 min |
| Aug 8, 6:10 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 50 min |
| Aug 8, 6:14 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 30 min |
| Aug 8, 6:29 PM CDT | Tornado Warning | ILX | Edgar | 31 min |
| Aug 8, 6:37 PM CDT | Severe Thunderstorm Warning | ILX | Macon, Piatt | 53 min |
| Aug 8, 6:50 PM CDT | Severe Thunderstorm Warning | ILX | Clark | 40 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning in 1994
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.