Alert archive / Illinois / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 13, NWS Lincoln, IL

April 5, 1997Logan County, Peoria County, Tazewell County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 5, 1997, 3:00 PM CST for Logan County, Peoria County, Tazewell County, Illinois. It was in force for 45 min. 4 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: Apr 5, 1997, 3:00 PM CST (21:00 UTC)
Expired: Apr 5, 1997, 3:45 PM CST
In force: 45 min
Issued by: NWS Lincoln, IL
Area: Whole counties

Counties Logan County, IL, Peoria County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 40 km from the middle of the area, began a volume at 21:01 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
Apr 5, 3:12 PM CST	Thunderstorm Wind	Pekin, IL	The thunderstorm winds blew over a carport 7 miles southwest of Pekin. No injuries were reported.
Apr 5, 3:27 PM CST	Thunderstorm Wind	Deer Creek, IL
Apr 5, 3:30 PM CST	Thunderstorm Wind	Peoria, IL	Thunderstorm winds caused a lot of damage in the Peoria area. A wall on a boat warehouse was blown out causing around $3,000 in damage and a garage door was buckled in. One tree fell onto a house causing minor roof damage. No injuries were reported.
Apr 5, 3:35 PM CST	Thunderstorm Wind 50	Lincoln Logan Co Arp, IL

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
Apr 5, 2:30 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 88 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 502 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 118 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 
TTAA00 KSPI 052102 RRA
SVRSPI
ILC107-143-175-179-052145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
300 PM CST SAT APR 5 1997

* SEVERE THUNDERSTORM WARNING FOR
  LOGAN COUNTY - CENTRAL ILLINOIS
  PEORIA COUNTY - CENTRAL ILLINOIS
  STARK COUNTY - CENTRAL ILLINOIS
  TAZEWELL COUNTY - CENTRAL ILLINOIS

* UNTIL 345 PM CST
 
* SOME LOCATIONS AFFECTED
  TOULON
  PEORIA
  EAST PEORIA
  LINCOLN

* AT 300 PM CST LINCOLN DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS FROM GALESBURG THROUGH CANTON TO
  SPRINGFIELD...MOVING NORTH NORTHEAST AT 45 MPH.

THIS STORM IS CAPABLE OF BLOWING DOWN TREES AND DAMAGING ROOFS AND
WINDOWS. MOVE TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

$$

BYRD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 2:30 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Knox	30 min
Apr 5, 2:46 PM CST	Severe Thunderstorm Warning	ILX	Mason, Menard, Sangamon	29 min
Apr 5, 3:00 PM CST	Severe Thunderstorm Warning	ILX	Stark	45 min
Apr 5, 3:16 PM CST	Severe Thunderstorm Warning	ILX	Christian, Sangamon	29 min
Apr 5, 3:36 PM CST	Severe Thunderstorm Warning	ILX	McLean, Woodford	39 min
Apr 5, 3:36 PM CST	Severe Thunderstorm Warning	ILX	Marshall	39 min
Apr 5, 3:41 PM CST	Severe Thunderstorm Warning	ILX	DeWitt, Macon	34 min
Apr 5, 4:11 PM CST	Severe Thunderstorm Warning	ILX	DeWitt, Macon, Piatt	34 min
Apr 5, 4:11 PM CST	Severe Thunderstorm Warning	ILX	McLean	34 min
Apr 5, 4:33 PM CST	Severe Thunderstorm Warning	ILX	Champaign	57 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1997 Every severe thunderstorm warning 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.