Alert archive / Illinois / Tornado Warnings in 2004

Tornado Warning 94, NWS Lincoln, IL

August 18, 2004Fulton County, Illinois

NWS Lincoln, IL issued this tornado warning at Aug 18, 2004, 7:12 PM CDT for Fulton County, Illinois. It was in force for 63 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: Aug 18, 2004, 7:12 PM CDT (00:12 UTC)
Expired: Aug 18, 2004, 8:15 PM CDT
In force: 63 min
Issued by: NWS Lincoln, IL
Area: Counties, with a storm outline in the text

County Fulton County, IL

The radar

The Lincoln radar (KILX), 107 km from the middle of the area, began a volume at 00:11 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.

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 18, 5:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.2 hours before the alert went out and 108 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: 65 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 1117 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 295 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KILX 190012
TORILX
ILC057-190115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
712 PM CDT WED AUG 18 2004

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  FULTON COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 815 PM CDT

* AT 712 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
  ROTATION 9 MILES WEST OF AVON...OR ABOUT 15 MILES SOUTH OF
  MONMOUTH...MOVING EAST SOUTHEAST AT 25 MPH. THIS STORM COULD PRODUCE A
  TORNADO AT ANY TIME. IN ADDITION TO THE THREAT OF A TORNADO...LARGE
  HAIL AND DAMAGING WINDS CAN BE EXPECTED WITH THIS STORM. GO TO A
  SAFE PLACE NOW

* THE TORNADO IS EXPECTED TO BE NEAR...
  AVON
  ELLISVILLE
  FAIRVIEW
  FIATT
  NORRIS

IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IN A BASEMENT OR
INTERIOR ROOM ON THE LOWEST FLOOR. VEHICLES AND MOBILE HOMES SHOULD
BE ABANDONED FOR A SAFER SHELTER.

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 4073 9064 4065 9070 4049 9012 4063 9002

$$

MILLER

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 7:28 PM CDT	Severe Thunderstorm Warning	ILX	Knox	62 min
Aug 18, 8:03 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell	57 min
Aug 18, 8:16 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	59 min
Aug 18, 8:55 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell	65 min
Aug 18, 8:58 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell	62 min

Nearby

Tornado Warnings in Illinois, 2004 Every tornado warning in 2004 Tornadoes in 2004

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; radar from the NEXRAD Level II archive.