Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 22, NWS Lincoln, IL

April 19, 2011Vermilion County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 19, 2011, 8:10 PM CDT for Vermilion County, Illinois. It was in force for 20 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 19, 2011, 8:10 PM CDT (01:10 UTC)
Expired: Apr 19, 2011, 8:30 PM CDT
In force: 20 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon

County Vermilion County, IL

The radar

The Indianapolis radar (KIND), 135 km from the middle of the area, began a volume at 01:11 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.

What was reported inside it

Time	Report	Where	Remark
Apr 19, 8:15 PM CDT	TSTM WND DMG	Hoopeston, IL	POWER POLES BLOWN DOWN REPORTED BY SPOTERS AT THE INTERSECTION OF ILLINOIS ROUTE 1 AND ILLINOIS ROUTE 9

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 1.2 hours before the alert went out and 89 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.

960 
WFUS53 KILX 200110
TORILX
ILC183-200130-
/O.NEW.KILX.TO.W.0022.110420T0110Z-110420T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
810 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 830 PM CDT.

* AT 808 PM CDT...EMERGENCY MANAGEMENT REPORTED A TORNADO NEAR 
  HENNING. DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTHEAST 
  AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME NORTHEASTERN VERMILION COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4024 8761 4048 8775 4050 8766 4050 8753
      4049 8752 4027 8752
TIME...MOT...LOC 0110Z 244DEG 54KT 4037 8754

$$

MILLER

1 follow-up statement

129 
WWUS53 KILX 200124 RRA
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
824 PM CDT TUE APR 19 2011

ILC183-200134-
/O.EXP.KILX.TO.W.0022.000000T0000Z-110420T0130Z/
VERMILION IL-
824 PM CDT TUE APR 19 2011

...THE TORNADO WARNING FOR NORTHEASTERN VERMILION COUNTY WILL EXPIRE
AT 830 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 9 PM CDT.

LAT...LON 4024 8761 4048 8775 4050 8766 4050 8753
      4049 8752 4027 8752
TIME...MOT...LOC 0124Z 244DEG 54KT 4046 8729

$$

MILLER

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, 7:46 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	29 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, 8:13 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

Tornado Warnings in Illinois, 2011 Every tornado warning in 2011 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.