Alert archive / Illinois / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 111, NWS Lincoln, IL

June 4, 2002Marshall County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 4, 2002, 1:53 PM CDT for Marshall County, Illinois. It was in force for 37 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: Jun 4, 2002, 1:53 PM CDT (18:53 UTC)
Expired: Jun 4, 2002, 2:30 PM CDT
In force: 37 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Marshall County, IL

What was reported inside it

Time	Report	Where	Remark
Jun 4, 2:15 PM CDT	Thunderstorm Wind 50 E	Henry, IL	Numerous tree limbs were blown down as well as a couple of large trees.

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 nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 6.9 hours before the alert went out and 107 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: 223 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 310 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

406 
WUUS53 KILX 041853
SVRSPI
ILC123-041930-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
153 PM CDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 230 PM CDT

* AT 152 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CAMP GROVE...OR ABOUT 10 MILES NORTHWEST
  OF LACON...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SPARLAND
  LACON
  HENRY
  VARNA
  TOLUCA

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 4115 8964 4099 8965 4093 8909 4110 8920
          4115 8943

PLAHNER
NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 2:24 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Stark	51 min
Jun 4, 2:30 PM CDT	Tornado Warning	ILX	Marshall	30 min
Jun 4, 3:23 PM CDT	Flash Flood Warning	ILX	Knox	7 hr
Jun 4, 4:21 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria	54 min
Jun 4, 4:25 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	65 min
Jun 4, 5:11 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	64 min
Jun 4, 5:23 PM CDT	Severe Thunderstorm Warning	ILX	Woodford	52 min
Jun 4, 5:32 PM CDT	Severe Thunderstorm Warning	ILX	McLean	58 min
Jun 4, 6:10 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	80 min
Jun 4, 6:36 PM CDT	Flash Flood Warning	ILX	Morgan, Scott	3 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.