Alert archive / Illinois / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 32, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jun 2, 1987, 5:55 PM CDT for Edgar County, Illinois. It was in force for 50 min.
The area
The counties it named.
The facts
- Issued
- Jun 2, 1987, 5:55 PM CDT (22:55 UTC)
- Expired
- Jun 2, 1987, 6:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Edgar 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, 10.9 hours before the alert went out and 152 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
- 1094 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 905 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 58 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 022255 SVRSPI ILC173-035-045-023-022345- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD IL 555 PM CDT TUE JUN 2 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL ILLINOIS...SHELBY...CUMBERLAND...EDGAR AND CLARK AT 5 50 PM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 15 MILES EAST OF MATTOON ILLINOIS TO 30 MILES SOUTHWEST OF MATTOON ILLINOIS. THE LINE OF THUNDERSTORMS WAS MOVING EAST AT 20 MPH. IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DANGEROUS LIGHTNING. REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT. INTENSE LIGHTNING IS REPORTED WITH THIS STOR M. IF OUTDOORS... STAY AWAY FROM HIGH OBJECTS. MOVE INDOOR IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES AND ELECTRICAL EQUIPMENT. ATTN ISP DIST...10 AND 12 HILLIARD
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 2, 12:02 PM CDT, 5 hours 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 1202 PM CDT TUE JUN 1 1987 NUMEROUS SHOWERS AND THUNDERSTORMS...SOME HEAVY...ARE DEVELOPING OVER MOST ALL OF ILLINOIS AND ARE EXPECTED TO CONTOINUE INTO TONIGHT. THESE STORMS ARE IN ASSOCIATION WITH A SLOW MOVING COLD FRONT APPROACHING FROM THE WEST. THE GENERAL MOVEMENT OF THE THUNDERSTORMS IS NORTHEAST ABOUT 30 MPH. STUMETZ
Special weather statement, Jun 2, 4:13 PM CDT, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 4 10 PM CDT TUE JUN 2 1987 ...SEVERE THUNDERSTORM WATCH CONTINUES FOR CENTRAL ILLINOIS UNTIL 8PM CDT THIS TUESDAY AFTERNOON AND EVENING... AT 4 05 PM CDT RADAR SHOWS NUMEROUS STRONG THUNDERSTORMS OVER WESTERN AND CENTRAL ILLINOIS. THE STRONGER THUNDERSTORMS WERE LOCATED 15 MILES SOUTH OF SPRINGFIELD AND 20 MILES SOUTHWEST OF SPRINGFIELD OTHER STRONG THUNDERSTORMS WERE LOCATED IN DOUGLAS AND CHAMPAIGN COUNTIES...STRONG GUSTY WINDS...HAIL ...DANGEROUS LIGHTNING AND VERY HEAVY DOWNPOURS MAY ACCOMPANY THE STRONGEST THUNDERSTORMS. THE SHOWERS AND THUNDERSTORMS WAS MOVING NORTHEAST AT 25 MPH. NO SEVERE WEATHER HAS BEEN REPORTED TO THE NATIONAL WEATHER SERVICE OFFICE IN SPRINGFIELD DURING THE PAST HOUR. HILLIARD
Special weather statement, Jun 2, 5:32 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 5 25 PM CDT TUE JUN 2 1987 ...TORNADO WATCH IN EFFECT FOR PART OF SOUTHERN ILLINOIS UNTIL 10 PM CDT...SEVERE THUNDERSTORM WATCH CONTINUES FOR CENTRAL AND EASTERN ILLINOIS UNTIL 8 PM CDT... AT 5 20 PM CDT RADAR SHOWED NUMEROUS STRONG THUNDERSTORMS OVER CENTRAL ILLINOIS. THE STRONGER THUNDERSTORMS WERE LOCATED IN NORTHERN SHELBY COUNTY... 20 MILES SOUTHEAST OF SPRINGFIELDIELD AND 15 MILES SOUTH OF SPRINGFIELD. STRONG GUSTY WINDS...HAIL...DANGEROUS LIGHTNING AND HEAVY DOWNPOURS MAY ACCOMPANY THE STRONGEST THUNDERSTORMS. AT 5 25 PM CDT MARBLE SIZE HOUR...VERY HEAVY RAINFALLAND 35 MPH WINDS WAS REPORTED AT MATTOON ILLINOIS. NO SEVERE WEATHER HAS BEEN REPORTED TO THE NATIONAL WEATHER SERVICE THE SHOWERS AND THUNDERSTORMS WAS MOVING NORTHEAST AT 30 MPH. HILLIARD
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 2:32 AM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Ogle | 43 min |
| Jun 2, 12:19 PM CDT | Severe Thunderstorm Warning | ILX | McDonough | 41 min |
| Jun 2, 12:20 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 55 min |
| Jun 2, 12:34 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 56 min |
| Jun 2, 1:03 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 57 min |
| Jun 2, 1:09 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 55 min |
| Jun 2, 1:47 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 58 min |
| Jun 2, 2:00 PM CDT | Tornado Warning | ILX | Champaign, Vermilion | 30 min |
| Jun 2, 2:10 PM CDT | Tornado Warning | ILX | Tazewell | 65 min |
| Jun 2, 2:12 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 48 min |
| Jun 2, 2:33 PM CDT | Tornado Warning | ILX | Vermilion | 27 min |
| Jun 2, 2:35 PM CDT | Tornado Warning | ILX | McLean | 55 min |
| Jun 2, 2:44 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard | 46 min |
| Jun 2, 5:55 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Cumberland, Shelby | 50 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1987Every severe thunderstorm warning in 1987
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.