Alert archive / Illinois / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 283, NWS Lincoln, IL

August 26, 2000Piatt County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Aug 26, 2000, 8:45 PM CDT for Piatt County, Illinois. It was in force for 60 min. 2 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Aug 26, 2000, 8:45 PM CDT (01:45 UTC)
Expired: Aug 26, 2000, 9:45 PM CDT
In force: 60 min
Issued by: NWS Lincoln, IL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Piatt County, IL

The radar

The Lincoln radar (KILX), 62 km from the middle of the area, began a volume at 01:46 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
Aug 26, 8:51 PM CDT	Thunderstorm Wind	Monticello, IL	Numerous trees were blown down, as well as, large areas of corn and soybean crops extending from Monticello south to the county line along US 36. In Bement, a large tree limb fell onto a house breaking a window and tearing down some guttering. Also, some hom
Aug 26, 9:10 PM CDT	Hail 4	Bement, IL	A supercell developed over northern Piatt County and moved to the south southeast . In Bement, one inch hail fell. As the storm approached the Milmine area, the hail grew in size. Four inch hail was reported in this area. Several vehicles in this area rece

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
Aug 26, 8:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.8 hours before the alert went out and 14 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: 3339 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 969 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 9.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 270146
SVRSPI
ILC147-270245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
845 PM CDT SAT AUG 26 2000

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PIATT COUNTY IN EAST CENTRAL ILLINOIS

* UNTIL 945 PM CDT

* AT 845 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES WEST OF DE LAND...OR ABOUT 11 MILES
  NORTHWEST OF MONTICELLO...MOVING SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DE LAND
  LODGE
  MONTICELLO
  CISCO
  CERRO GORDO
  BEMENT

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 NVATIONAL WEATHER
SERVICE. STAY TUNED FOR LATER STATEMENTS.

LAT...LON 4020 8865 4008 8876 3980 8874 3980 8848
          4005 8848

AUTEN

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 Aug 26, 8:43 PM CDT, 2 minutes earlier.

Area forecast discussion, Aug 26, 8:43 PM CDT, 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
843 PM CDT SAT AUG 26 2000

SEVERE WEATHER ACROSS CWA AND HAVE SEVERE THUNDERSTORM WATCH UNTIL
100 AM ACROSS PARTS OF CWA. WILL UPDATE LATER TONIGHT AS SEVERE
WEATHER EXITS REGION. OTHERWISE ACTIVE WEATHER ACROSS PARTS OF CWA
AT THIS TIME.

EH

In the hours before

Local storm report, Aug 26, 7:35 PM CDT, 1 hour 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN, IL
735 PM CDT SAT AUG 26 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0720 PM    MARIETTA                  IL   1.75 INCH HAIL
08/26/00   FULTON                         REPORTED BY CO-OP OBSERVER

TNF

Local storm report, Aug 26, 8:27 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN, IL
827 PM CDT SAT AUG 26 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0756 PM    1 W LEWISTOWN             IL   .75 INCH HAIL
08/26/00   FULTON

TNF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 7:00 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	75 min
Aug 26, 7:59 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt	46 min
Aug 26, 8:03 PM CDT	Severe Thunderstorm Warning	ILX	Mason	57 min
Aug 26, 8:38 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard	52 min
Aug 26, 9:15 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	75 min
Aug 26, 9:25 PM CDT	Severe Thunderstorm Warning	ILX	Douglas, Moultrie	65 min
Aug 26, 9:45 PM CDT	Tornado Warning	ILX	Coles, Douglas, Moultrie	45 min
Aug 26, 10:13 PM CDT	Severe Thunderstorm Warning	ILX	Piatt	32 min
Aug 26, 10:25 PM CDT	Severe Thunderstorm Warning	ILX	Douglas	65 min
Aug 26, 10:26 PM CDT	Tornado Warning	ILX	Coles	49 min
Aug 26, 11:15 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland	60 min
Aug 26, 11:36 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Jasper	69 min
Aug 27, 12:02 AM CDT	Severe Thunderstorm Warning	ILX	Lawrence	43 min
Aug 27, 12:29 AM CDT	Severe Thunderstorm Warning	ILX	Clay, Richland	61 min
Aug 27, 4:51 AM CDT	Severe Thunderstorm Warning	ILX	Clay	24 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2000 Every severe thunderstorm warning in 2000

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.