Alert archive / Illinois / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 35, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at May 25, 1989, 1:45 AM CDT for Macon County, Sangamon County, Illinois. It was in force for 30 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 25, 1989, 1:45 AM CDT (06:45 UTC)
- Expired
- May 25, 1989, 2:15 AM CDT
- In force
- 30 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Macon County, IL, Sangamon County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 25, 1:50 AM CDT | Thunderstorm Wind 0 | Sangamon, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Peoria Regional, IL (KPIA), launched 00:00Z, 6.8 hours before the alert went out and 99 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
- NaN m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
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, May 24, 10:22 PM CDT, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 1020 PM CDT WED MAY 24 1989 ..TORNADO WATCH IN EFFECT FOR NORTH AND CENTRAL ILLINOIS UNTIL 400 AM... AT 1015 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM WESTERN WISCONSIN SOUTHWEST TO NORTHERN MISSOURI. TORNADOES HAVE BEEN REPORTED WITH THIS LINE OF THUNDERSTORMS IN SOUTHERN IOWA AND NORTHERN MISSOURI. THE STORMS WERE MOVING EAST AT 35 MILES AN HOUR...AND WILL BE AFFECTING EXTREME WEST CENTRAL ILLINOIS WITHIN THE NEXT HOUR...AND THE PEORIA AREA AFTER 100 AM. AS THESE THUNDERSTORMS MOVE INTO THE AREA...BE PREPARED FOR VERY STRONG WINDS...HEAVY RAIN...DANGEROUS LIGHTNING...HAIL AND POSSIBLY TORNADOES. STAY TUNED TO LOCAL RADIO...TELEVISION...OR NOAA WEATHER RADIO FOR LATER STATEMENTS ON THIS DANGEROUS WEATHER SITUATION. J LAST
Special weather statement, May 25, 1:05 AM CDT, 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 1255 AM CDT THU MAY 25 1989 ...TORNADO WATCH CANCELLED FOR HENDERSON...WARREN...KNOX...HANCOCK...AND MCDONOUGH COUNTIES... ...TORNADO WATCH CONTINUES TO BE IN EFFECT FOR MOST OF CENTRAL ILLINOIS... AT 1245 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A 30 MILE WIDE BAND OF THUNDERSTORMS FROM NORTH CENTRAL ILLINOIS SOUTHWEST TO NORTHEASTERN MISSOURI. THE HEAVIEST ACTIVTY WAS ASSOCIATED WITH AN ISOLATED THUNDERSTORM NEAR CHENOA IN EXTREME NORTHERN MCLEAN COUNTY. OTHER HEAVY ACTIVITY EXTENDED FROM NEAR TOLUCA...30 MILES NORTHEAST OF PEORIA IN EASTERN MARSHALL COUNTY TO NEAR KILBOURNE...45 MILES SOUTHWEST OF PEORIA IN SOUTHERN IMASON COUNTY. MOVEMENT OF THESE STORMS WAS EAST AT 30 MPH. AS THE THUNDERSTORMS MOVE INTO THESE AREAS...BE PREPARED FOR STRONG WINDS...HEAVY RAIN...DANGEROUS LIGHTNING...HAIL AND POSSIBLY TORNADOES. MILLER
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 11:20 PM CDT | Severe Thunderstorm Warning | ILX | Warren | 35 min |
| May 25, 1:54 AM CDT | Tornado Warning | ILX | Sangamon | 36 min |
| May 25, 2:38 AM CDT | Tornado Warning | ILX | DeWitt, Logan | 37 min |
| May 25, 3:11 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Piatt | 34 min |
| May 25, 11:23 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Shelby | 67 min |
| May 25, 1:18 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Morgan | 42 min |
| May 25, 1:41 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Montgomery, Sangamon | 64 min |
| May 25, 2:12 PM CDT | Severe Thunderstorm Warning | ILX | Shelby | 63 min |
| May 25, 4:44 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas, Edgar | 61 min |
| May 25, 5:45 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 30 min |
| May 25, 6:04 PM CDT | Tornado Warning | ILX | Sangamon | 26 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1989Every severe thunderstorm warning in 1989
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.