Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Lincoln, IL

May 3, 2021Cass County, Morgan County, Schuyler County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 3, 2021, 3:59 PM CDT for Cass County, Morgan County, Schuyler County, Illinois. It was in force for 46 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
May 3, 2021, 3:59 PM CDT (20:59 UTC)
Expired
May 3, 2021, 4:45 PM CDT
In force
46 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Cass County, IL, Morgan County, IL, Schuyler County, IL

The radar

The Lincoln radar (KILX), 106 km from the middle of the area, began a volume at 20:58 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
May 3, 2:47 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.0 hours before the alert went out and 168 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 12:00Z on 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
460 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

400 
WUUS53 KILX 032059
SVRILX
ILC017-137-169-032145-
/O.NEW.KILX.SV.W.0011.210503T2059Z-210503T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
359 PM CDT Mon May 3 2021

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Western Cass County in west central Illinois...
  South central Schuyler County in west central Illinois...
  Northwestern Morgan County in west central Illinois...

* Until 445 PM CDT.

* At 358 PM CDT, a severe thunderstorm was located near Buckhorn, or
  16 miles east of Quincy Regional Airport, moving east at 25 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Beardstown, Meredosia, Bluff Springs, Arenzville, Frederick and
  Concord.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4013 9038 3982 9035 3983 9057 3987 9059
      3992 9054 3997 9051 3999 9052 3998 9060
      4000 9060 4002 9062 4003 9061 4003 9065
      4005 9068 4008 9067 4009 9070
TIME...MOT...LOC 2058Z 265DEG 24KT 3997 9087 

HAIL...1.25IN
WIND...60MPH
 
$$

37
3 follow-up statements
292 
WWUS53 KILX 032116
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
416 PM CDT Mon May 3 2021

ILC017-137-169-032145-
/O.CON.KILX.SV.W.0011.000000T0000Z-210503T2145Z/
Cass-Schuyler-Morgan-
416 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR WESTERN CASS...SOUTH CENTRAL SCHUYLER AND NORTHWESTERN MORGAN
COUNTIES...

At 415 PM CDT, a severe thunderstorm was located over Mount Sterling,
or 12 miles southwest of Rushville, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Trained weather spotters.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Beardstown, Meredosia, Bluff Springs, Arenzville, Frederick and
Concord.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4013 9038 3982 9035 3983 9057 3987 9059
      3992 9054 3997 9051 3999 9052 3998 9060
      4000 9060 4002 9062 4003 9061 4003 9065
      4005 9068 4008 9067 4009 9070
TIME...MOT...LOC 2115Z 265DEG 24KT 3998 9072 

HAIL...1.25IN
WIND...60MPH
 
$$

37
084 
WWUS53 KILX 032138
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
438 PM CDT Mon May 3 2021

ILC017-137-169-032145-
/O.CON.KILX.SV.W.0011.000000T0000Z-210503T2145Z/
Cass-Schuyler-Morgan-
438 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR WESTERN CASS...SOUTH CENTRAL SCHUYLER AND NORTHWESTERN MORGAN
COUNTIES...

At 437 PM CDT, a severe thunderstorm was located near Bluff Springs,
or near Beardstown, moving east at 40 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Beardstown, Bluff Springs and Arenzville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4007 9038 3982 9035 3989 9057 3992 9054
      3997 9051 4006 9049
TIME...MOT...LOC 2137Z 269DEG 36KT 3994 9045 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

37
492 
WWUS53 KILX 032139 CCA
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
439 PM CDT Mon May 3 2021

ILC017-137-169-032145-
/O.COR.KILX.SV.W.0011.000000T0000Z-210503T2145Z/
Cass-Schuyler-Morgan-
439 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR WESTERN CASS...SOUTH CENTRAL SCHUYLER AND NORTHWESTERN MORGAN
COUNTIES...

At 439 PM CDT, a severe thunderstorm was located near Bluff Springs,
or near Beardstown, moving east at 40 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Beardstown, Bluff Springs and Arenzville. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4007 9038 3982 9035 3989 9057 3992 9054
      3997 9051 4006 9049
TIME...MOT...LOC 2137Z 269DEG 36KT 3994 9045 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

37

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 3:31 PM CDTSpecial Weather StatementILXKnox29 min
May 3, 4:10 PM CDTSpecial Weather StatementILXSchuyler35 min
May 3, 4:30 PM CDTSpecial Weather StatementILXFulton30 min
May 3, 4:43 PM CDTSevere Thunderstorm WarningILXCass, Menard, Morgan, Sangamon, Schuyler47 min
May 3, 4:50 PM CDTTornado WarningILXCass, Morgan25 min
May 3, 5:00 PM CDTSpecial Weather StatementILXMason, Menard30 min
May 3, 5:08 PM CDTTornado WarningILXCass, Menard, Morgan, Sangamon37 min
May 3, 5:17 PM CDTSevere Thunderstorm WarningILXCass, Logan, Mason, Menard43 min
May 3, 5:25 PM CDTSevere Thunderstorm WarningILXMorgan, Scott33 min
May 3, 5:30 PM CDTTornado Warning Tornado observedILXMenard, Sangamon30 min
May 3, 5:52 PM CDTTornado WarningILXLogan, Menard, Sangamon23 min
May 3, 6:02 PM CDTSpecial Weather StatementILXLogan43 min
May 3, 6:16 PM CDTTornado Warning Tornado observedILXChristian, Logan, Macon, Sangamon29 min
May 3, 6:37 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Sangamon53 min
May 3, 6:42 PM CDTTornado Warning Tornado observedILXMacon33 min
May 3, 6:54 PM CDTSevere Thunderstorm WarningILXChristian, Sangamon51 min

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.