Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 53, NWS Lincoln, IL

June 20, 2021Fulton County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 20, 2021, 10:36 PM CDT for Fulton County, Illinois. It was in force for 34 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, 2021, 10:36 PM CDT (03:36 UTC)
Expired
Jun 20, 2021, 11:10 PM CDT
In force
34 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Fulton County, IL

The radar

The Lincoln radar (KILX), 73 km from the middle of the area, began a volume at 03:38 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.

IssuedProductOfficeLasted
Jun 20, 8:10 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 3.6 hours before the alert went out and 131 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, Davenport, at 00:00Z on 2021-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1058 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, Davenport, at 00:00Z on 2021-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 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
1058 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
1.4
Supercell composite
7.8

Open this sounding in Storm Lab

The text

As transmitted.

301 
WUUS53 KILX 210336
SVRILX
ILC057-210430-
/O.NEW.KILX.SV.W.0053.210621T0336Z-210621T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
1036 PM CDT Sun Jun 20 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Fulton County in west central Illinois...

* Until 1130 PM CDT.

* At 1036 PM CDT, emergency management reported a severe 
  thunderstorm located over Bardolph, or 8 miles east of Macomb, 
  moving east at 35 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Emergency management.

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

* Locations impacted include...
  Cuba, Lewistown and St. David.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4063 9045 4063 8999 4062 8988 4055 8987
      4047 8989 4044 8992 4043 8995 4039 8999
      4037 9004 4033 9006 4036 9045
TIME...MOT...LOC 0336Z 282DEG 38KT 4052 9053 

HAIL...0.75IN
WIND...60MPH
 
$$

SB
2 follow-up statements
783 
WWUS53 KILX 210400
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1100 PM CDT Sun Jun 20 2021

ILC057-210430-
/O.CON.KILX.SV.W.0053.000000T0000Z-210621T0430Z/
Fulton-
1100 PM CDT Sun Jun 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR NORTHEASTERN FULTON COUNTY...

At 1059 PM CDT, a severe thunderstorm was located near Fairview, or
near Canton, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Canton, Cuba, St. David, Fairview, Dunfermline, Norris, Banner,
Ellisville and Fiatt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4063 9032 4063 8999 4062 8988 4055 8987
      4047 8989 4049 9032
TIME...MOT...LOC 0359Z 265DEG 38KT 4060 9014 

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

SB
980 
WWUS53 KILX 210410
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1110 PM CDT Sun Jun 20 2021

ILC057-210420-
/O.CAN.KILX.SV.W.0053.000000T0000Z-210621T0430Z/
Fulton-
1110 PM CDT Sun Jun 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN FULTON COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
central and west central Illinois.

LAT...LON 4063 9032 4063 8999 4062 8988 4055 8987
      4047 8989 4049 9032
TIME...MOT...LOC 0409Z 282DEG 38KT 4058 8999 

$$

SB

Nearby

Severe Thunderstorm Warnings in Illinois, 2021Every severe thunderstorm warning in 2021

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.