Alert archive / Illinois / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 76, NWS Lincoln, IL

June 20, 2016Logan County, Menard County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 20, 2016, 9:11 PM CDT for Logan County, Menard County, Illinois. It was in force for 19 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
Jun 20, 2016, 9:11 PM CDT (02:11 UTC)
Expired
Jun 20, 2016, 9:30 PM CDT
In force
19 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Logan County, IL, Menard County, IL

The radar

The Lincoln radar (KILX), 17 km from the middle of the area, began a volume at 02:15 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 00:00Z, 2.2 hours before the alert went out and 79 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2016-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2024 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2016-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2024 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1599 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.4
Supercell composite
6.2

Open this sounding in Storm Lab

The text

As transmitted.

041 
WUUS53 KILX 210211
SVRILX
ILC107-129-210230-
/O.NEW.KILX.SV.W.0076.160621T0211Z-160621T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
911 PM CDT MON JUN 20 2016

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN LOGAN COUNTY IN CENTRAL ILLINOIS...
  NORTHEASTERN MENARD COUNTY IN CENTRAL ILLINOIS...

* UNTIL 930 PM CDT

* AT 911 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  MIDDLETOWN... OR 9 MILES SOUTHEAST OF MASON CITY...MOVING EAST AT
  45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  LINCOLN...EMDEN...ELKHART...MIDDLETOWN...HARTSBURG...NEW HOLLAND...
  BROADWELL AND FANCY PRAIRIE.

THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 155 NEAR MILE
MARKER 0...AND BETWEEN MILE MARKERS 2 AND 8.
 INTERSTATE 55 BETWEEN MILE MARKERS 111 AND 126.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3997 8935 3998 8961 4016 8965 4015 8963
      4012 8960 4026 8960 4031 8946
TIME...MOT...LOC 0211Z 255DEG 37KT 4012 8956 

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

SMITH
1 follow-up statement
595 
WWUS53 KILX 210229
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
929 PM CDT MON JUN 20 2016

ILC107-129-210238-
/O.EXP.KILX.SV.W.0076.000000T0000Z-160621T0230Z/
LOGAN-MENARD-
929 PM CDT MON JUN 20 2016

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME WESTERN LOGAN AND
NORTHEASTERN MENARD COUNTIES WILL EXPIRE AT 930 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY
WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

LAT...LON 3997 8935 3998 8961 4016 8965 4015 8963
      4012 8960 4026 8960 4031 8946
TIME...MOT...LOC 0227Z 255DEG 37KT 4012 8956 

$$

SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:52 PM CDTSpecial Weather StatementILXCass23 min
Jun 20, 8:38 PM CDTSpecial Weather StatementILXMason, Menard52 min
Jun 20, 8:42 PM CDTSevere Thunderstorm WarningILXCass, Logan, Mason, Menard33 min
Jun 20, 8:55 PM CDTSevere Thunderstorm WarningILXChampaign, McLean, Piatt50 min
Jun 20, 9:04 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, McLean, Macon, Piatt, Tazewell41 min
Jun 20, 9:36 PM CDTSevere Thunderstorm WarningILXChampaign, DeWitt, McLean, Macon, Piatt, Vermilion54 min
Jun 20, 9:40 PM CDTSevere Thunderstorm WarningILXVermilion35 min
Jun 20, 9:44 PM CDTSevere Thunderstorm WarningILXDeWitt, Logan, Macon31 min
Jun 20, 10:27 PM CDTSevere Thunderstorm WarningILXEdgar, Vermilion33 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2016Every severe thunderstorm warning in 2016

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.