Alert archive / Illinois / Tornado Warnings in 2018

Tornado Warning 2, NWS Lincoln, IL

April 3, 2018Effingham County, Jasper County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 3, 2018, 4:47 PM CDT for Effingham County, Jasper County, Illinois. It was in force for 13 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 3, 2018, 4:47 PM CDT (21:47 UTC)
Expired: Apr 3, 2018, 5:00 PM CDT
In force: 13 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Effingham County, IL, Jasper County, IL

The radar

The Evansville,IN radar (KVWX), 108 km from the middle of the area, began a volume at 21:46 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 3, 1:33 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.8 hours before the alert went out and 127 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: 549 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 317 m²/s²
0-3 km storm-relative helicity: 346 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

180 
WFUS53 KILX 032147
TORILX
ILC049-079-032200-
/O.NEW.KILX.TO.W.0002.180403T2147Z-180403T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
447 PM CDT TUE APR 3 2018

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Northwestern Jasper County in southeastern Illinois...
  Southeastern Effingham County in south central Illinois...

* Until 500 PM CDT
    
* At 447 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Watson, or 7 miles south of Effingham, moving east
  at 55 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...
  Dieterich and Wheeler around 500 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Heartville, Elliotstown and Mason.

This includes Interstate 57 between mile markers 147 and 155.
 
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.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Lincoln.

&&

LAT...LON 3895 8865 3903 8869 3914 8829 3900 8829
TIME...MOT...LOC 2147Z 254DEG 48KT 3901 8858 

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

$$

Auten

1 follow-up statement

362 
WWUS53 KILX 032202
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
502 PM CDT TUE APR 3 2018

ILC049-079-032211-
/O.EXP.KILX.TO.W.0002.000000T0000Z-180403T2200Z/
Jasper-Effingham-
502 PM CDT TUE APR 3 2018

...THE TORNADO WARNING FOR NORTHWESTERN JASPER AND SOUTHEASTERN
EFFINGHAM COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.

A tornado watch remains in effect until 800 PM CDT for south central
and southeastern Illinois.

LAT...LON 3895 8865 3903 8869 3914 8829 3900 8829
TIME...MOT...LOC 2201Z 254DEG 48KT 3906 8837 

$$

Auten

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 8:28 AM CDT	Flash Flood Warning	ILX	Clark, Coles, Cumberland, Edgar, Effingham, Shelby	3 hr
Apr 3, 9:29 AM CDT	River Flood Warning	ILX	Crawford, Jasper	5 days
Apr 3, 10:36 AM CDT	Special Weather Statement	ILX	Effingham	24 min
Apr 3, 11:09 AM CDT	Special Weather Statement	ILX	Crawford, Jasper	51 min
Apr 3, 11:27 AM CDT	Areal Flood Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar	3 hr
Apr 3, 3:23 PM CDT	Areal Flood Warning	ILX	Coles, Douglas, Edgar	12 hr
Apr 3, 4:14 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Moultrie, Shelby	31 min
Apr 3, 4:34 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas, Edgar	26 min
Apr 3, 5:20 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Crawford, Jasper, Richland	25 min

Nearby

Tornado Warnings in Illinois, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.