Alert archive / Illinois / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 101, NWS Lincoln, IL

June 14, 2017Cass County, Menard County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 14, 2017, 6:12 PM CDT for Cass County, Menard County, Illinois. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 14, 2017, 6:12 PM CDT (23:12 UTC)
Expired: Jun 14, 2017, 6:48 PM CDT
In force: 36 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cass County, IL, Menard County, IL

The radar

The Lincoln radar (KILX), 61 km from the middle of the area, began a volume at 23:12 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
Jun 14, 6:45 PM CDT	TSTM WND DMG	Petersburg, IL	LARGE TREE BLOWN DOWN. RELAYED BY WAND-TV.

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
Jun 14, 1:04 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.2 hours before the alert went out and 122 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: 971 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1054 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

774 
WUUS53 KILX 142312
SVRILX
ILC017-129-150000-
/O.NEW.KILX.SV.W.0101.170614T2312Z-170615T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
612 PM CDT WED JUN 14 2017

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  West central Menard County in central Illinois...
  Cass County in west central Illinois...

* Until 700 PM CDT

* At 612 PM CDT, a severe thunderstorm was located over Virginia,
  moving east at 30 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Virginia, Ashland, Chandlerville, Philadelphia and Newmansville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 4007 9029 4006 9029 4005 9027 4006 9027
      4005 9023 4006 9019 4006 9016 4007 9015
      4007 8999 3987 9000 3987 9033 4007 9034
TIME...MOT...LOC 2312Z 271DEG 26KT 3995 9024 

HAIL...<.75IN
WIND...60MPH
 
$$

25

2 follow-up statements

511 
WWUS53 KILX 142342
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
642 PM CDT WED JUN 14 2017

ILC017-129-150000-
/O.CON.KILX.SV.W.0101.000000T0000Z-170615T0000Z/
Menard-Cass-
642 PM CDT WED JUN 14 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR WEST CENTRAL MENARD AND SOUTHEASTERN CASS COUNTIES...

At 642 PM CDT, a severe thunderstorm was located near Ashland, or 11
miles east of Virginia, moving east at 20 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect damage to roofs, siding, and trees. 

Locations impacted include...
Ashland, Philadelphia and Newmansville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4007 8999 3987 9000 3987 9014 4007 9011
TIME...MOT...LOC 2342Z 272DEG 18KT 3993 9000 

HAIL...<.75IN
WIND...60MPH
 
$$

25

785 
WWUS53 KILX 142348
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
648 PM CDT WED JUN 14 2017

ILC017-129-142358-
/O.CAN.KILX.SV.W.0101.000000T0000Z-170615T0000Z/
Menard-Cass-
648 PM CDT WED JUN 14 2017

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MENARD AND
SOUTHEASTERN CASS COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 800 PM CDT for
central and west central Illinois.

LAT...LON 4007 8999 3987 9000 3987 9014 4007 9011
TIME...MOT...LOC 2347Z 271DEG 26KT 3993 8994 

$$

25

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 2:01 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	44 min
Jun 14, 2:44 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Moultrie, Shelby	32 min
Jun 14, 3:04 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria, Stark	56 min
Jun 14, 3:38 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Stark, Tazewell, Woodford	42 min
Jun 14, 4:02 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Woodford	43 min
Jun 14, 4:30 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Piatt	45 min
Jun 14, 5:06 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	24 min
Jun 14, 5:18 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	57 min
Jun 14, 5:53 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	54 min
Jun 14, 6:30 PM CDT	Severe Thunderstorm Warning	ILX	Menard, Sangamon	45 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2017 Every severe thunderstorm warning 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.