Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 74, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Aug 29, 1990, 1:57 AM CDT for McLean County, Illinois. It was in force for 63 min. 2 reports 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
- Aug 29, 1990, 1:57 AM CDT (06:57 UTC)
- Expired
- Aug 29, 1990, 3:00 AM CDT
- In force
- 63 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County McLean 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 |
|---|---|---|---|
| Aug 29, 2:10 AM CDT | Hail 0.75 | Mclean, IL | |
| Aug 29, 2:30 AM CDT | Thunderstorm Wind 78 | Mclean, 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
Paducah/Barkley, KY (KPAH), launched 00:00Z, 7.0 hours before the alert went out and 381 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
- 1355 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1963 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KPIA 290657
SVRPIA
ILC113-290800-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEORIA IL
157 AM CDT WED AUG 29 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 300 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE CENTRAL PART OF ILLINOIS
WESTERN CENTRAL MCLEAN
AT 0150 AM RADAR INDICATED A SEVERE THUNDERSTORM MOVING OUT OF
WOODFORD COUNTY INTO MCLEAN COUNTY. THIS STORM IS A HAIL PRODUCER
WITH STRONG WINDS. MOVEMENT CONTINUES TO BE TO THE SOUTHEAST.
IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORECED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.
THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS
AND UNDERPASSES.
INTENSE LIGHTNING IS REPORTEDn WITH THIS STORM. 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 6
MOGGEDWhat 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 28, 9:13 PM CDT, 4 hours 44 minutes before
ILZ005-006-007-009-290315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 915 PM CDT TUE AUG 28 1990 ...SEVERE THUNDERSTORM WATCH UNTIL 1AM FOR WOODFORD AND MCLEAN COUNTIES... AT 810 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS IN CENTRAL ILLINOIS. THE AREA EXTENDED FROM CAMBRIDGE IN HENRY COUNTY...25 MILES SOUTHEAST OF MOLINE TO CHILLICOTHE 15 MILES NORTH OF PEORIA. THE STRONGEST THUNDERSTORMS WERE FROM GALVA...30 MILES NORTHWEST OF PEORIA TO TOULON...25 MILES NORTH NORTHWEST OF PEORIA AND IN STARK COUNTY NEAR WYOMING...20 MILES NORTH NORTHWEST OF PEORIA. MOVEMENT WAS TO THE SOUTHEAST AT 30 MILES AN HOUR. THE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAINFALL...SMALL HAIL AND FREQUENT LIGHTNING. STAY TUNED TO TV...RADIO OR NOAA WEATHER RADIO FOR LATER STATEMENTS. NELSON
Special weather statement, Aug 28, 9:50 PM CDT, 4 hours 7 minutes before
ILZ009-010-290330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD ILLINOIS 945 PM CDT TUE AUG 28 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF CENTRAL AND ALL OF EAST CENTRAL ILLINOIS UNTIL 1 AM CDT.. AT 9:30 PM CDT...RADAR INDICATED AN AREA THUNDERSTORMS TO THE NORTH OF PEORIA. THESE STORMS WERE MOVING SOUTH AT 30 MPH. NO THUNDERSTORM ACTIVITY WAS CURRENTLY PRESENT BETWEEN SPRINGFIELD AND CHAMPAIGN. THE COLD FRONT THAT WAS HELPING TO TRIGGER THUNDERSTORMS STILL LAY OVER NORTH CENTRAL ILLINOIS. THIS FRONT IS FORECAST TO MOVE THROUGH CENTRAL ILLINOIS LATER TONIGHT. AS IT MOVES THROUGH IT WILL BE CAPABLE OF PRODUCING THUNDERSTORMS. PERSONS IN CENTAL AND EAST CENTRAL ILLINOIS ARE STILL URGER TO BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND BE ALERT TO FURTHER UPDATES AND POSSIBLE WARNINGS. ATTN ISP DIST...6 9 10 FENLEY
Special weather statement, Aug 28, 10:18 PM CDT, 3 hours 39 minutes before
ILZ005-006-007-009-290415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 1015 PM CDT TUE AUG 28 1990 ...SEVERE THUNDERSTORM WATCH UNTIL 1AM FOR WOODFORD AND MCLEAN COUNTIES... AT 1010 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS IN CENTRAL ILLINOIS. THE AREA EXTENDED FROM JUST EAST OF BRIMFIELD...15 MILES NORTHWEST OF PEORIA TO LONG POINT IN LIVINGSTON COUNTY...35 MILES NORTHEAST OF PEORIA. THE STONGEST THUNDERSTORMS WERE 5 MILES NORTH OF PEORIA. MOVEMENT WAS TO THE SOUTHEAST AT 30 MILES AN HOUR. THE STRONGEST PORTION SHOULD JUST PASS THE NORTHERN PORTIONS OF PEORIA CITY AND MOVE INTO WOODFORD COUNTY IN THE NEXT HOUR. A CONTINUED DECREASE IN STRENGTH OF T!HE STORMS IS LIKELY. NELSON
Special weather statement, Aug 28, 11:11 PM CDT, 2 hours 46 minutes before
ILZ010-290500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD ILLINOIS 1110 PM CDT TUE AUG 28 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EAST CENTRAL ILLINOIS UNTIL 1 AM CDT.. AT 1100 PM CDT...RADAR INDICATED AN AREA THUNDERSTORMS OVER NORTHWEST CHAMPAIGN AND NORTH PIATT COUNTY. THE STORMS WERE MOVING SOUTHEAST AND WILL MOVE INTO CHAMPAIGN WITHIN THE HOUR. LOCALLY HEAVY RAINS...STRONG GUSTY WINDS AND SOME HAIL ARE POSSmIBLE AS THESE STORMS MOVE THOUGH CHAMPAIGN. PERSONS IN EAST CENTRAL ILLINOIS ARE STILL URGER TO BE ON THE LOOKOUT FOR RAPIDLY CHANGING WEATHER CONDITINS AND SEEK SHELTER IF THREATENING WEATHER APPEARS LIKELY. ATTN ISP DIST...10 FENLEY
Special weather statement, Aug 28, 11:19 PM CDT, 2 hours 38 minutes before
ILZ005-006-007-009-290515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 1117 PM CDT TUE AUG 28 1990 ...SEVERE THUNDERSTORM WATCH UNTIL 1AM FOR WOODFORD AND MCLEAN COUNTIES... AT 1110 PM CDT...MOST OF THE THUNDERSTORM ACTIVITY HAD DISSIPATED TO JUST SHOWERS ACROSS CENTRAL ILLINOIS. A LINE OF THUNDERSTORMS HAS DEVELOPED FROM 15 MILES NORTHEAST OF OTTUMWA IOWA TO MOLINE. THESE STORMS ARE MOVING EAST SOUTHEAST AND WILL AFFECT THE PEOvRIA AREA BETWEEN 2 AND 3 AM WEDNESDAY MORNING. THESE STORMS ARE RAPIDLY DEVELOPING AND INCREASING IN INTENSITY. MOGGED
Special weather statement, Aug 29, 1:48 AM CDT, 9 minutes before
ILZ009-010-290745- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD ILLINOIS 145 AM CDT WED AUG 29 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR CENTRAL ILLINOIS UNTIL 7 AM CDT.. AT 135 AM CDT...RADAR INDICATED AN AREA THUNDERSTORMS OVER NORTH CENTRAL ILLINOIS...NORTH OF A LINE FROM 15 MILES SOUTH OF BURLINGTON IOWA EASTWARD TO 35 MILES NORTH OF SPRINGFIELD ONTO THE INDIANA BORDER. THESE STORMS HAVE PRODUCED LOCALLY HEAVY RAIN...STRONG GUSTY WINDS AND SOME HAIL AS WELL AS DANGEROUS LIGHTNING. BE ON THE LOOKOUT FOR CONTINUALLY CHANGING WEATHER AND FUTURE STATEMENTS...WATCHES OR WARNINGS. THE STORMS WILL BE ENTERING THE FOLLOWING COUNTIES WITHIN THE NEXT 30 MINUTESa TO AN HOUR...LOGAN...MENARD...CASS...DEWITT...CHAMPAIGN AND VERMILION COUNTIES. THE STORMS WERE MOVING TO THE SOUTHEAST AT 30 MPH. ATTN ISP DISTS 9...6...10 MUNDY
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 1:06 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria | 69 min |
| Aug 29, 1:33 AM CDT | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 57 min |
| Aug 29, 2:26 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon, Piatt | 64 min |
| Aug 29, 2:40 AM CDT | Tornado Warning | ILX | DeWitt, Macon | 35 min |
| Aug 29, 3:11 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas | 64 min |
| Aug 29, 3:11 AM CDT | Severe Thunderstorm Warning | ILX | Moultrie | 64 min |
| Aug 29, 3:20 AM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 55 min |
| Aug 29, 3:29 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Sangamon | 61 min |
| Aug 29, 3:29 AM CDT | Severe Thunderstorm Warning | ILX | Menard | 61 min |
| Aug 29, 4:18 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 57 min |
| Aug 29, 4:47 AM CDT | Severe Thunderstorm Warning | ILX | Hancock, McDonough | 58 min |
| Aug 29, 5:01 AM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 59 min |
| Aug 29, 5:23 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 67 min |
| Aug 29, 5:30 AM CDT | Severe Thunderstorm Warning | ILX | Macon, Moultrie, Shelby | 60 min |
| Aug 29, 6:05 AM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard, Sangamon | 27 min |
| Aug 29, 6:34 AM CDT | Severe Thunderstorm Warning | ILX | McDonough, Schuyler | 26 min |
| Aug 29, 6:34 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 56 min |
| Aug 29, 7:28 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas | 32 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1990Every severe thunderstorm warning in 1990
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.