Alert archive / Illinois / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 4, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Mar 28, 1997, 4:00 PM CST for McLean County, Illinois. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 28, 1997, 4:00 PM CST (22:00 UTC)
- Expired
- Mar 28, 1997, 5:00 PM CST
- In force
- 60 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County McLean County, IL
The radar
The Lincoln radar (KILX), 56 km from the middle of the area, began a volume at 22:02 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.0 hours before the alert went out and 43 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
- 127 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 815 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSPI 282201 RRA
SVRSPI
ILC113-282300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
400 PM CST FRI MAR 28 1997
* SEVERE THUNDERSTORM WARNING FOR
MCLEAN COUNTY - CENTRAL ILLINOIS
* UNTIL 500 PM CST
* SOME LOCATIONS IN THE PATH OF THIS STORM:
BLOOMINGTON
NORMAL
LEXINGTON
DOWNS
* AT 350 PM CST LINCOLN DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM 15 MILES SOUTHWEST OF BLOOMINGTON...MOVING NORTHEAST
AT 35 MPH.
THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. GET INSIDE A
STURDY BUILDING AND STAY AWAY FROM WINDOWS.
GEELHARTWhat 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.
NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 28, 1:58 PM CST, 2 hours 2 minutes earlier.
Area forecast discussion, Mar 28, 1:58 PM CST, 2 hours 2 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LINCOLN IL 200 PM CST FRI MAR 28 1997 MDLS IN GOOD AGREEMENT W/ SYS ROTATING INTO IL TON. BEST DYNAMICS AS WELL AS MOIST CONVRG...UP LVL DVRG WL BE OVR SRN IL TO INCLUDE PORTIONS OF SE AND EC IL THIS EVE AND TON. STORMS HAVE ALREADY DVLPD S AND SW OF STL ALONG SFC THERMAL RDG AND NOW OF 55 DWPTS ENDING AT STL. RWS AND TSTMS WL DVLP THIS AFTN AND CONT THIS EVE. NRN CNTIES COULD STILL SEE SOME THUNDER PUT JUST THIS EVE...ENDING EARLY. FRNT SHOULD PUSH THROUGH PIA BY 00Z AND SPI BY 01Z...LIMITING THE DURATION OF CONVECTION. SOME -RA IS PSBL BEHIND FRNT BUT IT TOO WONT LAST LONG. MOIST WL STICK AROUND BEHIND FRNT W/ SOME CAA. SKIES SHOULD BRK OUT TOM AND BRNG SEASONABLE CONDS FOR THE BEGINNING OF THE HOLIDAY WEEK. MDLS SIM W/ TEMPS TON AND TOM...NO REASON TO DIFFER. PIA 42/5 6(EARLY)0 SPI 43/5 7(EARLY)0 DEC 42/5 80 CMI 44/5 +0 LWV 46/5 +0 AUTEN
In the hours before
Special weather statement, Mar 28, 10:27 AM CST, 5 hours 33 minutes before
ILZ027>031-036>038-040>057-061>063-066>068-071>073-291200 SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 1100 AM CST FRI MAR 28 1997 SYNOPSIS: A COLD FRONT IS EXPECTED TO MOVE INTO THE REGION THIS AFTERNOON AND EARLY THIS EVENING. THUNDERSTORMS ARE FORECAST TO DEVELOP ALONG AND AHEAD OF THIS FRONT. SOME OF THESE STORMS MAY PRODUCE SEVERE WEATHER THIS AFTERNOON INTO THIS EVENING ACROSS CENTRAL...EAST CENTRAL AND SOUTHEAST ILLINOIS. SPOTTER ACTIVATION MAY BE NEEDED AS A RESULT. AUTEN
Special weather statement, Mar 28, 11:00 AM CST, 5 hours before
ILZ027>031-036>038-040>057-061>063-066>068-071>073-291200 SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 1100 AM CST FRI MAR 28 1997 SYNOPSIS: A COLD FRONT IS EXPECTED TO MOVE INTO THE REGION THIS AFTERNOON AND EARLY THIS EVENING. THUNDERSTORMS ARE FORECAST TO DEVELOP ALONG AND AHEAD OF THIS FRONT. SOME OF THESE STORMS MAY PRODUCE SEVERE WEATHER THIS AFTERNOON INTO THIS EVENING ACROSS CENTRAL...EAST CENTRAL AND SOUTHEAST ILLINOIS. SPOTTER ACTIVATION MAY BE NEEDED AS A RESULT. AUTEN
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 2:54 PM CST | Severe Thunderstorm Warning | ILX | Menard | 36 min |
| Mar 28, 3:18 PM CST | Severe Thunderstorm Warning | ILX | Logan, Sangamon | 57 min |
| Mar 28, 3:54 PM CST | Severe Thunderstorm Warning | ILX | Christian | 36 min |
| Mar 28, 4:06 PM CST | Severe Thunderstorm Warning | ILX | Macon | 54 min |
| Mar 28, 4:27 PM CST | Severe Thunderstorm Warning | ILX | DeWitt | 48 min |
| Mar 28, 4:37 PM CST | Severe Thunderstorm Warning | ILX | Effingham | 53 min |
| Mar 28, 4:49 PM CST | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 56 min |
| Mar 28, 5:00 PM CST | Severe Thunderstorm Warning | ILX | Shelby | 30 min |
| Mar 28, 5:12 PM CST | Tornado Warning | ILX | Coles, Cumberland | 33 min |
| Mar 28, 5:35 PM CST | Severe Thunderstorm Warning | ILX | DeWitt | 40 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.