Alert archive / Illinois / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 65, NWS Lincoln, IL

May 7, 2002Logan County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 7, 2002, 1:25 AM CDT for Logan County, Illinois. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 7, 2002, 1:25 AM CDT (06:25 UTC)
Expired: May 7, 2002, 2:15 AM CDT
In force: 50 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Logan County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 6.4 hours before the alert went out and 69 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: 854 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 913 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 070625
SVRSPI
ILC107-070715-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
124 AM CDT TUE MAY 7 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 215 AM CDT

* AT 124 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF ELKHART...OR ABOUT 14
  MILES NORTH OF SPRINGFIELD...MOVING EAST-NORTHEAST AT 15 MPH.
  THIS STORM HAS A HISTORY OF PRODUCING QUARTER SIZE HAIL.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ELKHART
  CORNLAND
  MOUNT PULASKI
  LATHAM
  CHESTNUT
  BEASON

THIS STORM IS CAPABLE OF PRODUCING WINDS IN EXCESS OF 60 MPH...
DAMAGING HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. TAKE
SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

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

LAT...LON 4004 8959 3993 8943 3993 8916 4017 8917

CHURCHILL

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 12:12 AM CDT	Severe Thunderstorm Warning	ILX	Sangamon	48 min
May 7, 1:02 AM CDT	Severe Thunderstorm Warning	ILX	Sangamon	43 min
May 7, 1:28 AM CDT	Severe Thunderstorm Warning	ILX	Christian	47 min
May 7, 1:36 AM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard	39 min
May 7, 1:49 AM CDT	Severe Thunderstorm Warning	ILX	Macon	41 min
May 7, 2:41 AM CDT	Flash Flood Warning	ILX	Cass, Christian, Logan, Macon, Menard, Morgan and 3 more	6 hr
May 7, 3:18 AM CDT	Severe Thunderstorm Warning	ILX	Effingham, Shelby	42 min
May 7, 3:22 AM CDT	Flash Flood Warning	ILX	Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 3 more	7 hr
May 7, 3:40 AM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Jasper	35 min
May 7, 4:02 AM CDT	Flash Flood Warning	ILX	Crawford, Effingham, Jasper	7 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2002 Every severe thunderstorm warning in 2002

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.