Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 45, NWS Lincoln, IL

April 19, 2011Edgar County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 19, 2011, 7:46 PM CDT for Edgar County, Illinois. It was in force for 29 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: Apr 19, 2011, 7:46 PM CDT (00:46 UTC)
Expired: Apr 19, 2011, 8:15 PM CDT
In force: 29 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

County Edgar County, IL

The radar

The Indianapolis radar (KIND), 122 km from the middle of the area, began a volume at 00:49 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
Apr 19, 1:00 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.8 hours before the alert went out and 90 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: 2409 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 370 m²/s²
0-3 km storm-relative helicity: 547 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 24.4

Open this sounding in Storm Lab

The text

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

290 
WUUS53 KILX 200046
SVRILX
ILC045-200115-
/O.NEW.KILX.SV.W.0045.110420T0046Z-110420T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
746 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

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

* UNTIL 815 PM CDT.

* AT 745 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM ALLERTON TO OAKLAND TO
  CHARLESTON...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PARIS...HUME...KANSAS...REDMON...CHRISMAN...VERMILION...BORTON...
  PALERMO...METCALF...EDGAR...EDGAR COUNTY AIRPORT...SCOTTLAND AND
  BELL RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT TUESDAY EVENING
FOR SOUTHERN ILLINOIS.

LAT...LON 3948 8755 3950 8795 3979 8795 3988 8793
      3987 8762 3987 8758 3987 8755
TIME...MOT...LOC 0047Z 270DEG 34KT 3987 8791 3962 8796
          3946 8811
WIND...HAIL 70MPH 1.00IN

$$

CHURCHILL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 7:00 PM CDT	Tornado Warning	ILX	Coles, Douglas, Moultrie, Piatt, Shelby	45 min
Apr 19, 7:02 PM CDT	Flash Flood Warning	ILX	Christian, Shelby	6 hr
Apr 19, 7:08 PM CDT	Flash Flood Warning	ILX	Marshall, Peoria, Stark, Tazewell, Woodford	6 hr
Apr 19, 7:15 PM CDT	Tornado Warning	ILX	Shelby	45 min
Apr 19, 7:17 PM CDT	Tornado Warning	ILX	Champaign, Piatt	28 min
Apr 19, 7:26 PM CDT	Flash Flood Warning	ILX	Coles, Moultrie, Shelby	6 hr
Apr 19, 7:26 PM CDT	Tornado Warning	ILX	Champaign, Coles, Douglas	34 min
Apr 19, 7:45 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	30 min
Apr 19, 7:49 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	26 min
Apr 19, 7:56 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Effingham, Shelby	49 min
Apr 19, 8:10 PM CDT	Tornado Warning	ILX	Vermilion	20 min
Apr 19, 8:13 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	47 min
Apr 19, 8:14 PM CDT	Flash Flood Warning	ILX	Coles, Cumberland, Douglas	6 hr
Apr 19, 8:33 PM CDT	Flash Flood Warning	ILX	Clark, Coles, Edgar	6 hr
Apr 19, 8:46 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Cumberland, Jasper	59 min
Apr 19, 8:52 PM CDT	Tornado Warning	ILX	Effingham, Shelby	38 min
Apr 19, 8:56 PM CDT	Flash Flood Warning	ILX	Effingham	6 hr
Apr 19, 9:13 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Edgar	47 min
Apr 19, 9:19 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper, Richland	41 min
Apr 19, 9:27 PM CDT	River Flood Warning	ILX	Piatt	12 days
Apr 19, 9:40 PM CDT	River Flood Warning	ILX	Clay, Richland	18 days
Apr 19, 9:46 PM CDT	Tornado Warning	ILX	Crawford, Jasper, Lawrence, Richland	44 min
Apr 19, 9:51 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Cumberland, Jasper	39 min
Apr 19, 9:53 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence, Richland	27 min
Apr 19, 9:58 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Edgar	17 min
Apr 20, 5:44 AM CDT	River Flood Warning	ILX	Fulton, Knox	16 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2011 Every severe thunderstorm warning in 2011

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.