Alert archive / Illinois / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 67, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at May 7, 2002, 1:36 AM CDT for Cass County, Menard County, Illinois. It was in force for 39 min. 1 report 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
- May 7, 2002, 1:36 AM CDT (06:36 UTC)
- Expired
- May 7, 2002, 2:15 AM CDT
- In force
- 39 min
- Issued by
- NWS Lincoln, IL
- Area
- Counties, with a storm outline in the text
Counties Cass County, IL, Menard County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 1:55 AM CDT | Hail 0.88 | Virginia, IL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 6.6 hours before the alert went out and 128 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
- 854 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 913 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KILX 070636 SVRSPI ILC017-129-070715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 135 AM CDT TUE MAY 7 2002 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MENARD COUNTY IN CENTRAL ILLINOIS CASS COUNTY IN WEST CENTRAL ILLINOIS * UNTIL 215 AM CDT * AT 135 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER VIRGINIA...MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TALLULA PETERSBURG ATHENS GREENVIEW THIS STORM IS CAPABLE OF PRODUCING WINDS IN EXCESS OF 60 MPH... DAMAGING HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. TAKE SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS. REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO YOUR LOCAL ESDA...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY TUNED FOR LATER STATEMENTS. LAT...LON 4004 9035 3989 9034 3993 8972 4013 8972 CHURCHILL NNNN
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 12:12 AM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 48 min |
| May 7, 1:02 AM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 43 min |
| May 7, 1:25 AM CDT | Severe Thunderstorm Warning | ILX | Logan | 50 min |
| May 7, 1:28 AM CDT | Severe Thunderstorm Warning | ILX | Christian | 47 min |
| May 7, 1:49 AM CDT | Severe Thunderstorm Warning | ILX | Macon | 41 min |
| May 7, 2:41 AM CDT | Flash Flood Warning | ILX | Cass, Christian, Logan, Macon, Menard, Morgan and 3 more | 6 hr |
| May 7, 3:18 AM CDT | Severe Thunderstorm Warning | ILX | Effingham, Shelby | 42 min |
| May 7, 3:22 AM CDT | Flash Flood Warning | ILX | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 3 more | 7 hr |
| May 7, 3:40 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Cumberland, Jasper | 35 min |
| May 7, 4:02 AM CDT | Flash Flood Warning | ILX | Crawford, Effingham, Jasper | 7 hr |
Nearby
Severe Thunderstorm Warnings in Illinois, 2002Every severe thunderstorm warning in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.