Alert archive / Illinois / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 113, NWS Lincoln, IL

July 14, 20184 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jul 14, 2018, 4:25 PM CDT for 4 counties in Illinois. It was in force for 50 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: Jul 14, 2018, 4:25 PM CDT (21:25 UTC)
Expired: Jul 14, 2018, 5:15 PM CDT
In force: 50 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, Morgan County, IL, Sangamon County, IL

The radar

The Lincoln radar (KILX), 76 km from the middle of the area, began a volume at 21:25 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.4 hours before the alert went out and 134 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: 876 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 1076 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

147 
WUUS53 KILX 142125
SVRILX
ILC017-129-137-167-142215-
/O.NEW.KILX.SV.W.0113.180714T2125Z-180714T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
425 PM CDT SAT JUL 14 2018

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Southwestern Menard County in central Illinois...
  Northwestern Sangamon County in central Illinois...
  Southeastern Cass County in west central Illinois...
  Northeastern Morgan County in west central Illinois...

* Until 515 PM CDT.

* At 425 PM CDT, a severe thunderstorm was located over Jacksonville,
  moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Jacksonville, Petersburg, Ashland, Pleasant Plains, Tallula,
  Literberry, South Jacksonville, Philadelphia, Prentice, Sinclair,
  Salisbury, Jacksonville Municipal Airport and Lincolns New Salem.

This includes Interstate 72 near mile marker 71.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter such as an interior room, a
bathroom, closet or basement.

&&

LAT...LON 3969 9029 3978 9037 4006 8990 3987 8974
TIME...MOT...LOC 2125Z 237DEG 31KT 3975 9027 

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

Shimon

1 follow-up statement

452 
WWUS53 KILX 142157
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
457 PM CDT SAT JUL 14 2018

ILC017-137-142207-
/O.CAN.KILX.SV.W.0113.000000T0000Z-180714T2215Z/
Cass-Morgan-
457 PM CDT SAT JUL 14 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CASS AND
NORTHEASTERN MORGAN COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3979 8999 4001 8999 4006 8990 3987 8974
TIME...MOT...LOC 2157Z 237DEG 31KT 3990 8997 

$$

ILC129-167-142215-
/O.CON.KILX.SV.W.0113.000000T0000Z-180714T2215Z/
Menard-Sangamon-
457 PM CDT SAT JUL 14 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR SOUTHWESTERN MENARD AND NORTHWESTERN SANGAMON COUNTIES...

At 457 PM CDT, a severe thunderstorm was located over Ashland, or 13
miles east of Virginia, moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Petersburg, Pleasant Plains, Tallula, Salisbury and Lincolns New
Salem.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

&&

LAT...LON 3979 8999 4001 8999 4006 8990 3987 8974
TIME...MOT...LOC 2157Z 237DEG 31KT 3990 8997 

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

Shimon

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:48 PM CDT	Special Weather Statement	ILX	Knox	57 min
Jul 13, 8:43 PM CDT	Special Weather Statement	ILX	Knox	62 min
Jul 13, 9:43 PM CDT	Special Weather Statement	ILX	Stark	62 min
Jul 14, 3:09 AM CDT	Heat Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 20 more	13 hr
Jul 14, 9:04 AM CDT	Special Weather Statement	ILX	McLean	26 min
Jul 14, 9:21 AM CDT	Severe Thunderstorm Warning	ILX	Champaign, McLean, Vermilion	39 min
Jul 14, 9:58 AM CDT	Severe Thunderstorm Warning	ILX	Vermilion	32 min
Jul 14, 10:07 AM CDT	Special Weather Statement	ILX	Vermilion	38 min
Jul 14, 11:02 AM CDT	Special Weather Statement	ILX	Piatt	28 min
Jul 14, 11:46 AM CDT	Special Weather Statement	ILX	Douglas	29 min
Jul 14, 12:36 PM CDT	Special Weather Statement	ILX	Coles	24 min
Jul 14, 1:13 PM CDT	Special Weather Statement	ILX	Shelby	32 min
Jul 14, 1:45 PM CDT	Special Weather Statement	ILX	Effingham	30 min
Jul 14, 1:55 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham	50 min
Jul 14, 2:09 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Cumberland, Jasper	51 min
Jul 14, 2:23 PM CDT	Special Weather Statement	ILX	Clay, Cumberland, Effingham, Jasper, Richland	67 min
Jul 14, 2:37 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper, Richland	38 min
Jul 14, 3:23 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Jasper, Lawrence, Richland	52 min
Jul 14, 3:59 PM CDT	Special Weather Statement	ILX	Cass, Morgan, Schuyler, Scott	61 min
Jul 14, 4:11 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	33 min
Jul 14, 4:41 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason, Menard, Morgan, Sangamon	44 min
Jul 14, 5:01 PM CDT	Flash Flood Warning	ILX	Cass, Mason, Menard, Schuyler	3 hr
Jul 14, 5:50 PM CDT	Flash Flood Warning	ILX	Fulton	112 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2018 Every severe thunderstorm warning 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.