Alert archive / Illinois / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 264, NWS Lincoln, IL

August 22, 2000Morgan County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 22, 2000, 9:19 PM CDT for Morgan County, Illinois. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Aug 22, 2000, 9:19 PM CDT (02:19 UTC)
Expired: Aug 22, 2000, 10:00 PM CDT
In force: 41 min
Issued by: NWS Lincoln, IL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Morgan County, IL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 22, 7:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.3 hours before the alert went out and 140 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3363 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 915 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KILX 230221
SVRSPI
ILC137-230300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
919 PM CDT TUE AUG 22 2000

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MORGAN COUNTY IN CENTRAL ILLINOIS

* UNTIL 1000 PM CDT

* AT 919 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 5 MILES SOUTHWEST OF LITERBERRY
  TO 18 MILES SOUTHWEST OF MURRAYVILLE...MOVING EAST SOUTHEAST AT 40
  MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  LITERBERRY
  JACKSONVILLE
  MURRAYVILLE
  WOODSON
  ALEXANDER
  FRANKLIN

DAMAGING WINDS IN EXCESS OF 60 MPH WILL ACCOMPANY THIS DANGEROUS
STORM. GO TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. ABANDON CARS AND MOBILE HOMES IF YOU ARE IN THE
WARNED AREA.

REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO YOUR LOCAL ESdDA...OR THE
NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER
SERVICE. STAY TUNED FOR LATER STATEMENTS.

LAT...LON 3987 9024 3973 9038 3954 9025 3954 8997
          3975 9000 3988 9001

BYRD
NNNN

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 22, 8:42 PM CDT	Severe Thunderstorm Warning	ILX	Scott	63 min
Aug 22, 10:29 PM CDT	Severe Thunderstorm Warning	ILX	Christian	31 min
Aug 22, 10:52 PM CDT	Severe Thunderstorm Warning	ILX	Shelby	38 min
Aug 22, 11:48 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham	42 min
Aug 23, 3:07 AM CDT	Severe Thunderstorm Warning	ILX	McLean	38 min
Aug 23, 6:00 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Woodford	60 min
Aug 23, 6:23 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	52 min
Aug 23, 6:54 PM CDT	Severe Thunderstorm Warning	ILX	McLean	66 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2000 Every severe thunderstorm warning in 2000

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.