Alert archive / Illinois / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 97, NWS Lincoln, IL

May 27, 2002Sangamon County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 27, 2002, 3:45 PM CDT for Sangamon 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 outline as issued.

The facts

Issued: May 27, 2002, 3:45 PM CDT (20:45 UTC)
Expired: May 27, 2002, 4:45 PM CDT
In force: 60 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Sangamon County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 96 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: 19 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 966 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 70 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 272045
SVRSPI
ILC167-272145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
343 PM CDT MON MAY 27 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 445 PM CDT

* AT 343 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED 
  TO INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTHWEST OF CHATHAM...
  OR ABOUT 14 MILES SOUTHWEST OF SPRINGFIELD...MOVING NORTHEAST AT 
  15 MPH. AT 335 PM...1 INCH HAIL WAS REPORTED WITH THIS STORM AT
  1 MILE WEST OF AUBURN, BY A COUNTY STORM SPOTTER.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CHATHAM
  SPRINGFIELD
  ROCHESTER
  SHERMAN
  RIVERTON
  WILLIAMSVILLE

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 3971 8985 3954 8971 3980 8933 3991 8933
          3996 8960

AUTEN

&

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 2:45 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon	60 min
May 27, 4:07 PM CDT	Severe Thunderstorm Warning	ILX	Christian	53 min
May 27, 4:59 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Shelby	61 min
May 27, 5:18 PM CDT	Flash Flood Warning	ILX	Morgan, Scott	6 hr
May 27, 5:21 PM CDT	Flash Flood Warning	ILX	Christian, Shelby	6 hr
May 27, 5:57 PM CDT	Severe Thunderstorm Warning	ILX	Moultrie	63 min
May 27, 6:18 PM CDT	Flash Flood Warning	ILX	Clark, Coles, Moultrie	6 hr
May 27, 6:34 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas	56 min
May 27, 6:52 PM CDT	Severe Thunderstorm Warning	ILX	Clark	53 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; the sounding from the Mesonet's radiosonde archive.