Alert archive / Illinois / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 57, NWS Lincoln, IL

May 22, 2001Christian County, Sangamon County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 22, 2001, 1:08 PM CDT for Christian County, Sangamon County, Illinois. It was in force for 52 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 22, 2001, 1:08 PM CDT (18:08 UTC)
Expired: May 22, 2001, 2:00 PM CDT
In force: 52 min
Issued by: NWS Lincoln, IL
Area: Whole counties

Counties Christian County, IL, Sangamon County, IL

The radar

The Lincoln radar (KILX), 57 km from the middle of the area, began a volume at 18:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
May 22, 1:15 PM CDT	Thunderstorm Wind 50 E	Taylorville, IL	A large tree was blown down onto a house in Taylorville, causing minor damage.

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

Lincoln, IL (KILX), launched 12:00Z, 6.1 hours before the alert went out and 92 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: 8 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1200 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -60 m²/s²
0-3 km storm-relative helicity: -13 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.

701 
WUUS53 KILX 221810
SVRSPI
ILC021-107-167-221900-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
108 PM CDT TUE MAY 22 2001

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 200 PM CDT

* AT 108 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS FROM LINCOLN TO PAWNEE...MOVING   
  NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  LATHAM
  MOUNT PULASKI
  BEASON
  ILLIOPOLIS
  MOUNT AUBURN
  STONINGTON

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 ESDA...OR THE
NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER
SERVICE. STAY TUNED FOR LATER STATEMENTS.

$$
BYRD

NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 22, 10:25 AM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, May 22, 10:25 AM CDT, 2 hours 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
1025 AM CDT TUE MAY 22 2001

IR SATELLITE SHOWS MAIN UPPER LOW CENTERED NEAR DLH. IMAGERY LOOP
SUGGESTS MINOR VORT LOBE STRECTHING NE TO SW ACROS THE WESTERN 1/3
OF IA...ROTATING TO THE ESE.  DVN SOUNDING THIS MORNING SHOWS GOOD
INSTABILITY WITH CURRENT COLD AIR ALOFT...54 TOTAL TOTALS. ALSO MORE
COLD AIR MOVING INTO THE AREA. EXPECT DAYTIME HEATING TO TRIGGER
DEVELOPMENT OF SCATTERED SHOWERS ACROSS ALL OF CENTRAL ILLINOIS
TODAY. WITH THE SIGNIFICANT INSTABILITY...THERE IS A CHANCE OF
THUNDERSHOWERS ALSO.  PRECIPITATION AMOUNTS WILL BE LIGHT THOUGH
WITH PRECIPITATION MOVING FAST DUE TO GOOD WINDS ALOFT.

WILL ISSUE UPDATE OF ZONES...AS WILL HAVE TO INCREASE AFTERNOON
HIGHS SLIGHTLY DUE TO THE MORNING SUNSHINE.  WILL KEEP THUNDERSHOWER
CHANCES.

GOETSCH

In the hours before

Special weather statement, May 22, 11:00 AM CDT, 2 hours 8 minutes before

ILZ027>031-036>038-040>057-061>063-066>068-071>073-231000-

HAZARDOUS WEATHER OUTLOOK FOR CENTRAL ILLINOIS
NATIONAL WEATHER SERVICE LINCOLN IL
1100 AM CDT TUE MAY 22 2001

SCATTERED SHOWERS AND POSSIBLY A THUNDERSHOWER WILL DEVELOP OVER
CENTRAL AND SOUTHEAST ILLINOIS THIS AFTERNOON AND THIS EVENING...AS
A STRONG UPPER LOW SPINS OVER THE WESTERN GREAT LAKES.

HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED OVER THE REGION THROUGH
TONIGHT.

GOETSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 1:08 PM CDT	Severe Thunderstorm Warning	ILX	Logan	52 min
May 22, 1:12 PM CDT	Severe Thunderstorm Warning	ILX	Mason	63 min
May 22, 1:25 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Macon	50 min
May 22, 1:45 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Woodford	60 min
May 22, 1:50 PM CDT	Severe Thunderstorm Warning	ILX	Menard	55 min
May 22, 1:59 PM CDT	Severe Thunderstorm Warning	ILX	Logan	61 min
May 22, 2:45 PM CDT	Severe Thunderstorm Warning	ILX	Mason	60 min
May 22, 3:16 PM CDT	Severe Thunderstorm Warning	ILX	Shelby	44 min
May 22, 3:58 PM CDT	Severe Thunderstorm Warning	ILX	Shelby	32 min
May 22, 6:08 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	52 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2001 Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.