Alert archive / Illinois / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 39, NWS Lincoln, IL

April 24, 2002Cumberland County, Jasper County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 24, 2002, 3:44 PM CDT for Cumberland County, Jasper County, Illinois. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 24, 2002, 3:44 PM CDT (20:44 UTC)
Expired: Apr 24, 2002, 4:30 PM CDT
In force: 46 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

Counties Cumberland County, IL, Jasper County, IL

What was reported inside it

Time	Report	Where	Remark
Apr 24, 4:00 PM CDT	Hail 1.75	Newton, 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 24, 2:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.7 hours before the alert went out and 111 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1489 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 242044
SVRSPI
ILC035-079-242130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
344 PM CDT WED APR 24 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS
  JASPER COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 430 PM CDT

* AT 344 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM NEOGA TO 18 MILES SOUTHWEST OF
  WHEELER...OR FROM 12 MILES WEST OF TOLEDO TO 15 MILES SOUTH OF
  EFFINGHAM...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  WHEELER
  JEWETT
  TOLEDO
  JANESVILLE
  HIDALGO
  GREENUP
  NEWTON
  HAZEL DELL

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.

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE 
TORNADOES AT ANY TIME.

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 3937 8846 3920 8846 3920 8835 3887 8835
          3888 8798 3939 8804

KETCHAM 
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 12:56 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	64 min
Apr 24, 1:26 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	64 min
Apr 24, 2:13 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	47 min
Apr 24, 2:19 PM CDT	Severe Thunderstorm Warning	ILX	Cass	41 min
Apr 24, 2:51 PM CDT	Severe Thunderstorm Warning	ILX	Menard	39 min
Apr 24, 2:55 PM CDT	Severe Thunderstorm Warning	ILX	Mason	50 min
Apr 24, 3:13 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Tazewell	62 min
Apr 24, 3:14 PM CDT	Severe Thunderstorm Warning	ILX	Effingham	61 min
Apr 24, 3:32 PM CDT	Severe Thunderstorm Warning	ILX	Clay	43 min
Apr 24, 4:05 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford	40 min

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.