Alert archive / Illinois / Tornado Warnings in 1997

Tornado Warning 22, NWS Lincoln, IL

August 3, 1997Peoria County, Illinois

NWS Lincoln, IL issued this tornado warning at Aug 3, 1997, 5:07 PM CDT for Peoria County, Illinois. It was in force for 53 min. 2 reports 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
Aug 3, 1997, 5:07 PM CDT (22:07 UTC)
Expired
Aug 3, 1997, 6:00 PM CDT
In force
53 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Peoria County, IL

The radar

The Lincoln radar (KILX), 79 km from the middle of the area, began a volume at 22:04 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

TimeReportWhereRemark
Aug 3, 5:35 PM CDTThunderstorm Wind 52Brimfield, ILThunderstorm winds blew down a large tree onto a mobile home in Brimfield. The tree caused moderate damage to the home. Also, another mobile home nearby had a small storage shed blown up against it. No injuries were reported and damage to the mobile home wa
Aug 3, 5:55 PM CDTThunderstorm WindPeoria, ILThunderstorm winds blew down several large trees, numerous tree limbs, and some power lines in Peoria. No injuries were reported.

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.

IssuedProductOfficeLasted
Aug 3, 2:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.1 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 1997-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 1997-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
13 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
1867 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
22 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.

721 
WFUS1 KSPI 032209 
TORSPI
ILC143-032310-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
507 PM CDT SUN AUG 3 1997

* TORNADO WARNING FOR
  PEORIA COUNTY IN CENTRAL ILLINOIS

* UNTIL 600 PM CDT

* SOME TOWNS AFFECTED
  PRINCEVILLE
  DUNLAP
  ELMWOOD
  PEORIA

* AT 505 PM CDT LINCOLN DOPPLER RADAR INDICATED A POSSIBLE TORNADO
  20 MILES NORTHWEST OF PEORIA NEAR PRINCEVILLE...MOVING SOUTHEAST
  AT 40 MPH.




TAKE COVER IMMEDIATELY IN A BASEMENT OR INTERIOR ROOM ON THE LOWEST
FLOOR. ABANDON MOBILE HOMES AND VEHICLES FOR SAFER SHELTER.

OUSLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 4:23 PM CDTSevere Thunderstorm WarningILXKnox, Stark52 min
Aug 3, 4:50 PM CDTTornado WarningILXKnox65 min
Aug 3, 5:02 PM CDTSevere Thunderstorm WarningILXPeoria63 min

Nearby

Tornado Warnings in Illinois, 1997Every tornado warning in 1997Tornadoes in 1997

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.