Alert archive / Illinois / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 2, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Mar 22, 1991, 9:47 PM CST for McLean County, Illinois. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Mar 22, 1991, 9:47 PM CST (03:47 UTC)
- Expired
- Mar 22, 1991, 10:20 PM CST
- In force
- 33 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County McLean County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 3.8 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
- 1157 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 619 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- 287 m²/s²
- 0-3 km storm-relative helicity
- 294 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 8.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KPIA 230347
SVRPIA
ILC113-230445-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEORIA IL
947 PM CST FRI MAR 22 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1045 PM CST FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE CENTRAL PART OF ILLINOIS
MCLEAN
AT 940 PM THUNDERSTORMS WITH WIND GUSTS GREATER THAN 60 MPH WERE
MOVING THROUGH MCLEAN COUNTY. THESE STORMS WERE IN A LINE FROM
LEXINGTON TO LEROY. THE MOVEMENT WAS TO THE NORTHEAST AT 40 MPH.
THESE STORMS ARE MOVING INTO THE TOWNS OF ARROWSMITH AND COLFLAX.
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.
INTENSE LIGHTNING IS REPORTED 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 6What 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, Mar 22, 8:08 PM CST, 1 hour 39 minutes before
ILZ005>007-009-230305- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 805 PM CST FRI MAR 22 1991 ...TORNADO WATCH NUMBER 58 IN EFFECT FOR MUCH OF WEST CENTRAL ILLINOIS UNTIL 11PM CST... ...SEVERE THUNDERSTORM WARNING IN EFFECT FOR HENDERSON COUNTY UNTIL 845 PM... AT 800 PM CST... RADAR INDICATED A LINE OF THUNDERSTORMS FROM MOLINE SOUTH TO BURLINTON WITH THE STRONGEST STORMS LOCATED BETWEEN OQUAWKA AND BALD BLUFF IN HENDERSON COUNTY. ANOTHER AREA OF THUNDERSTORMS HAS DEVELOPED ON THE BORDERS OF MCDONOUGH AND HANCOCK COUNTIES. THE STRONGEST STORMS WERE MOVING INTO THE BLANDESVILLE AREA IN MCDONOUGH COUNTY. ALL THE STORMS CONTINUE TO MOVE TO THE NORTHEAST AT 35 MPH. 0 MOGGED
Special weather statement, Mar 22, 8:53 PM CST, 54 minutes before
ILZ005>007-009-230330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 855 PM CST FRI MAR 22 1991 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR NORTHERN WARREN COUNTY BUT CONTINUES IN EFFECT UNTIL 930 PM FOR NORTHWEST KNOX COUNTY... THUNDERSTORMS WERE OCCURRING OVER WESTERN KNOX COUNTY MOVING NORTHEAST AT 30 MPH. THE STORMS HAVE MOVED OUT OF WARREN COUNTY AND NO SEVERE WEATHER WAS REPORTED. THESE THUNDERSTORMS COULD STILL PRODUCE SEVERE WEATHER IN KNOX COUNTY NORTH OF GALESBURG. TORNADO WATCH NUMBER 60 HAS BEEN ISSUED TO REPLACE NUMBER 58. TORNADO WATCH NUMBER 60 COVERS THE FOLLOWING CENTRAL ILLINOIS COUNTIES UNTIL 2AM... BUREAU.. PUTNAM.. STARK.. MARSHALL.. PEORIoA.. WOODFORD.. TAZEWELL AND MC CLEAN. . TORNADO WATCH 58 IS CANCELLED AT 9PM FOR THE FOLLOWING COUNTIES... HENDERSON.. WARREN.. KNOX.. HANCOCK.. MCDONOUGH.. FULTON.. MASON.. AND SCHUYLER. JACOBS
Special weather statement, Mar 22, 8:58 PM CST, 49 minutes before
ILZ005>007-009-230330- SPECIAL WEATHER STATEMENT ..CORRECTION.. NATIONAL WEATHER SERVICE PEORIA IL 855 PM CST FRI MAR 22 1991 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR NORTHERN WARREN COUNTY BUT CONTINUES IN EFFECT UNTIL 930 PM FOR NORTHWEST KNOX COUNTY... THUNDERSTORMS WERE OCCURRING OVER WESTERN KNOX COUNTY MOVING NORTHEAST AT 30 MPH. THE STORMS HAVE MOVED OUT OF WARREN COUNTY AND NO SEVERE WEATHER WAS REPORTED. THESE THUNDERSTORMS COULD STILL PRODUCE SEVERE WEATHER IN KNOX COUNTY NORTH OF GALESBURG. SEVERE THUNDERSTORM WATCH NUMBER 60 HAS BEEN ISSUED TO REPLACE NUMBER 58. WATCH NUMBER 60 COVERS THE FOLLOWING CENTRAL ILLINOIS COUNTIES UNTIL 2AM... BUREAU.. PUTNAM.. STARK.. MARSHALL.. PEORIA.. WOODFORD.. TAZEWELL AND MC CLEAN. . TORNADO WATCH 58 IS CANCELLED AT 9PM FOR THE FOLLOWING COUNTIES... HENDERSON.. WARREN.. KNOX.. HANCOCK.. MCDONOUGH.. FULTON.. MASON.. AND SCHUYLER. JACOBS /CORRECTED TO CHANGE WATxCH NUMBER 60 TO SEVERE THUNDERSTORM WATCH/
Special weather statement, Mar 22, 9:07 PM CST, 40 minutes before
ILZ009-010-230415- SHORT TERM WEATHER FOR CENTRAL AND EASTCENTRAL ILLINOIS NATIONAL WEATHER SERVICE SPRINGFIELD IL 905 PM CST FRI MAR 22 1991 A LINE OF VERY STRONG THUNDERSTORMS EXTENDED FROM 30 MILES NORTHEAST OF SPRINGFIELD TO 15 MILES SOUTHEAST OF SPRINGFIELD. THE STORMS WERE MOVING TO THE NORTHEAST AT 45 TO 50 MPH AND WILL MOVE INTO NORTHERN LOGAN AND NORTHWESTERN DEWITT COUNTIES IN THE NEXT HALF HOUR. STRONG WINDS...HAIL...VERY HEAVY RAIN AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. SKIES WILL REMAIN PARTLY TO MOSTLY CLOUDY OVER THE ENTIRE AREA THE REST OF THIS EVENING WITH TEMPERATURES HOLDING STEADY IN THE LOW 60S. THERE REMAINS A CHANCE FOR MORE SHOWERS AND THUNDERSTORMS TO DEVELOP AND MOVE INTO THE AREA BEFORE MIDNIGHT AND SOME THUNDERSTORMS MAY BE SEVERE. BE ALERT TO THE CHANGING WEATHER CONDITIONS AND LISTEN FOR FURTHER UPDATES. MUNDY
Special weather statement, Mar 22, 9:24 PM CST, 23 minutes before
ILZ005>007-009-230430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 925 PM CST FRI MAR 22 1991 ...SEVERE THUNDERSTORM WARNING EXPIRES AT 930 PM FOR KNOX COUNTY... AT 9:22 PM CST... RADAR INDICATED THUNDERSTORMS FROM NORTHERN KNOX COUNTY NORTHWARD TO EAST OF MOLINE. HEAVY RAIN AND SMALL HAIL WAS REPORTED IN KNOX COUNTY WITH THIS STORM. ELSEWHERE AT 9:22PM... ANOTHER LINE OF THUNDERSTORMS EXTENDED FROM NEAR SPRINGFIELD TO JUST SOUTH OF BLOOMINGTON IN MCLEAN COUNTY. THESE THUNDERSTORMS HAVE BEEN MOVING NORTHEAST AT 40 MPH AND SHOULD MOVE UP ACROSS BLOOMINGTON AND LEXINGTON IN MC LEAN COUNTY DURING THE NEXT HOUR. THESE COULD BE HAIL AND STRONG WINDS IN THESE THUNDERSTORMS. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2AM FOR MUCH OF CENTRAL ILLINOIS. . JACOBS
Special weather statement, Mar 22, 9:46 PM CST, 1 minute before
ILZ009-010-230430- SHORT TERM WEATHER FOR CENTRAL AND EASTCENTRAL ILLINOIS NATIONAL WEATHER SERVICE SPRINGFIELD IL 945 PM CST FRI MAR 22 1991 A LINE OF VERY STRONG THUNDERSTORMS EXTENDED FROM 65 MILES NORTHEAST OF SPRINGFIELD TO 30 MILES EAST OF SPRINGFIELD. THE STORMS WERE MOVING TO THE NORTHEAST AT 45 TO 50 MPH AND WILL MOVE INTO MACON AND EASTERN DEWITT COUNTIES IN THE NEXT HALF HOUR. ALSO ANOTHER LINE OF VERY STRONG THUNDERSTORMS HAD DEVELOPED AND EXTENDED FROM 20 MILES SOUTHWEST OF CHAMPAIGN TO JUST NORTH OF VANDALIA ILLINOIS. THESE STORMS WERE ALSO MOVING TO THE NORTHEAST AT 45 TO 50 MPH AND WILL MOVE INTO THE FOLLOWING COUNTIES IN THE NEXT HOUR...PIATT ...DOUGLAS AND CHAMPAIGN. STRONG WINDS...HAIL...VERY HEAVY RAIN AND DANGEROUS LIGHTNING MAY ACCOMPANY THESE STORMS. BE ALERT TO THE RAPIDLY CHANGING WEATHER CONDITIONS AND LISTEN FOR FURTHER UPDATES. MUNDY
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 8:30 PM CST | Severe Thunderstorm Warning | ILX | Knox, Warren | 25 min |
| Mar 22, 9:49 PM CST | Tornado Warning | ILX | Bureau, Stark | 31 min |
| Mar 22, 11:33 PM CST | Tornado Warning | ILX | Vermilion | 32 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1991Every severe thunderstorm warning in 1991
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.