Alert archive / Illinois / Tornado Warnings in 2017

Tornado Warning 23, NWS Lincoln, IL

November 5, 2017Crawford County, Lawrence County, Richland County, Illinois

NWS Lincoln, IL issued this tornado warning at Nov 5, 2017, 5:36 PM CST for Crawford County, Lawrence County, Richland County, Illinois. It was in force for 24 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: Nov 5, 2017, 5:36 PM CST (23:36 UTC)
Expired: Nov 5, 2017, 6:00 PM CST
In force: 24 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Crawford County, IL, Lawrence County, IL, Richland County, IL

The radar

The Evansville,IN radar (KVWX), 66 km from the middle of the area, began a volume at 23:36 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
Nov 5, 5:37 PM CST	TSTM WND DMG	4 Ne Olney, IL	3 POWER POLES LEANING

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
Nov 5, 12:35 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 162 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: 1199 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 454 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 322 m²/s²
0-3 km storm-relative helicity: 382 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted.

446 
WFUS53 KILX 052336
TORILX
ILC033-101-159-060000-
/O.NEW.KILX.TO.W.0023.171105T2336Z-171106T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
536 PM CST SUN NOV 5 2017

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Northern Lawrence County in southeastern Illinois...
  Southern Crawford County in east central Illinois...
  Northeastern Richland County in southeastern Illinois...

* Until 600 PM CST
    
* At 535 PM CST, a severe thunderstorm capable of producing a tornado
  was located just northwest of Olney, moving east at 50 mph.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Chauncey around 550 PM CST. 
  Flat Rock and Birds around 600 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Petrolia and Pinkstaff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3874 8813 3879 8815 3885 8799 3885 8795
      3887 8794 3900 8758 3896 8751 3891 8753
      3890 8752 3889 8754 3888 8753 3886 8755
      3885 8753 3882 8753 3878 8750
TIME...MOT...LOC 2335Z 253DEG 45KT 3878 8810 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Barnes

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 5, 3:58 AM CST	Dense Fog Advisory	ILX	Cass, Champaign, DeWitt, Fulton, Knox, Logan and 15 more	6 hr
Nov 5, 10:35 AM CST	Special Weather Statement	ILX	Lawrence	25 min
Nov 5, 11:10 AM CST	Special Weather Statement	ILX	Champaign, Moultrie, Piatt, Vermilion	50 min
Nov 5, 11:42 AM CST	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	48 min
Nov 5, 12:54 PM CST	Severe Thunderstorm Warning	ILX	Christian, Macon	28 min
Nov 5, 2:05 PM CST	Special Weather Statement	ILX	Douglas	40 min
Nov 5, 2:17 PM CST	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	43 min
Nov 5, 2:49 PM CST	Severe Thunderstorm Warning	ILX	Christian, Moultrie, Shelby	41 min
Nov 5, 3:27 PM CST	Special Weather Statement	ILX	Coles, Cumberland, Effingham	48 min
Nov 5, 4:19 PM CST	Severe Thunderstorm Warning	ILX	Clark	41 min
Nov 5, 5:09 PM CST	Flash Flood Warning	ILX	Clay, Jasper	3 hr
Nov 5, 5:57 PM CST	Tornado Warning	ILX	Crawford, Lawrence, Richland	33 min

Nearby

Tornado Warnings in Illinois, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.