Alert archive / Illinois / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 48, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jul 11, 1986, 2:59 PM CDT for Edgar County, Vermilion County, Illinois. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1986, 2:59 PM CDT (19:59 UTC)
- Expired
- Jul 11, 1986, 4:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Edgar County, IL, Vermilion County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Salem-Leckrone, IL (KSLO), launched 12:00Z, 8.0 hours before the alert went out and 174 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
- 1572 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 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 111959 SVRSPI ILC183-045-112100- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD IL 259 PM CDT FRI JUL 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL ILLINOIS...SOUTHERN VERMILION AND EDGAR AT 257PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR IN WESTERN EDGAR COUNTY NEAR BORTON ILLINOIS..ABOUT 27 MILES NORTHEAST OF MATTOON ILLINOIS. THE SEVERE THUNDERSTORM WAS MOVING EAST NORTHEAST AT 30 MPH. REMEMBER..A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...DEADLY LIGHTNING AND HEAVY RAINS THAT CAN QUICKLY FLOOD A LOW LYING AREA. IF THREATENING WEATHER APPROACHES...YOU SHOULD GO TO A SAFE PLACE. ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORT OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. ZATTN ISP DIST..10 HUGHES
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, Jul 11, 2:16 PM CDT, 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 210 PM CDT FRI JUL 11 1986 AT 205 PM RADAR INDICATED A RAPIDLY DEVELOPING LINE OF STRONG THUNDERSTORMS EXTENDING FROM WATSEKA ILLINOIS TO MATTOON ILLINOIS TO SHELBYVILLE ILLINOIS TO HILLSBORO ILLINOIS TO NEAR ST LOUIS MISSOURI. THE THUNDERSTORMS ALONG THIS LINE ARE MOVING EAST NORTHEAST AT 25 MILES AN HOUR. STRONG GUSTY WINDS..SOME HAIL..DANGEROUS LIGHTNING AND VERY HEAVY DOWN.POURS CAN BE EXPECTED WITH THESE THUNDERSTORMS. HUGHES
Special weather statement, Jul 11, 2:46 PM CDT, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 245 PM CDT FRI JUL 11 1986 AT 243 PM RADAR INDICATED A LINE OF STRONG THUNDERSTORMS OVER EAST CENTRAL ILLINOIS. THE LINE EXTENDED FROM NEAR DANVILLE ILLINOIS TO MATTOON ILLINOIS TO JUST NORTH OF VANDALIA ILLINOIS. THE THUNDERSTORMS ALONG THIS LINE WERE MOVING EAST NORTHEAST AT 25 MILES AN HOUR. STRONG GUSTY WINDS..SOME HAIL..DANGEROUS LIGHTNING AND VERY HEAVY RAIN CAN BE EXPECTLED WITH THESE THUNDERSTORMS. HUGHES
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:35 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon | 55 min |
| Jul 10, 7:57 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 63 min |
| Jul 10, 7:57 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 63 min |
| Jul 10, 8:01 PM CDT | Severe Thunderstorm Warning | ILX | Piatt | 59 min |
| Jul 10, 8:09 PM CDT | Tornado Warning | ILX | DeWitt, Piatt | 21 min |
| Jul 10, 8:17 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 58 min |
| Jul 10, 8:45 PM CDT | Tornado Warning | ILX | Champaign | 30 min |
| Jul 10, 8:55 PM CDT | Tornado Warning | ILX | Macon | 35 min |
| Jul 10, 9:05 PM CDT | Tornado Warning | ILX | Douglas, Edgar, Vermilion | 25 min |
| Jul 10, 9:50 PM CDT | Tornado Warning | ILX | Champaign | 25 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1986Every severe thunderstorm warning in 1986
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.