Alert archive / Illinois / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS Lincoln, IL

May 3, 2021Morgan County, Scott County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 3, 2021, 5:25 PM CDT for Morgan County, Scott County, Illinois. It was in force for 33 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, 5:25 PM CDT (22:25 UTC)
Expired: May 3, 2021, 5:58 PM CDT
In force: 33 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Morgan County, IL, Scott County, IL

The radar

The Lincoln radar (KILX), 95 km from the middle of the area, began a volume at 22:24 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.

Issued	Product	Office	Lasted
May 3, 2:47 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.4 hours before the alert went out and 153 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: 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.

079 
WUUS53 KILX 032225
SVRILX
ILC137-171-032315-
/O.NEW.KILX.SV.W.0014.210503T2225Z-210503T2315Z/

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

The National Weather Service in Lincoln has issued a

* Severe Thunderstorm Warning for...
  Northeastern Scott County in west central Illinois...
  Northern Morgan County in west central Illinois...

* Until 615 PM CDT.

* At 524 PM CDT, a severe thunderstorm was located over Chapin, or 8
  miles north of Winchester, moving east at 45 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Jacksonville, Alexander, Bluffs, Chapin, Exeter, South
  Jacksonville, Concord, Sinclair, Merritt and Jacksonville Municipal
  Airport.

This includes Interstate 72 between mile markers 67 and 78.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Lincoln.

&&

LAT...LON 3972 9053 3979 9053 3986 9001 3967 8999
TIME...MOT...LOC 2224Z 269DEG 38KT 3975 9044 

HAIL...1.00IN
WIND...60MPH
 
$$

Shimon

3 follow-up statements

251 
WWUS53 KILX 032236
SVSILX

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

ILC171-032245-
/O.CAN.KILX.SV.W.0014.000000T0000Z-210503T2315Z/
Scott-
536 PM CDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SCOTT COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
west central Illinois.

LAT...LON 3972 9036 3977 9036 3986 9001 3968 8999
TIME...MOT...LOC 2235Z 269DEG 38KT 3975 9028 

$$

ILC137-032315-
/O.CON.KILX.SV.W.0014.000000T0000Z-210503T2315Z/
Morgan-
536 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHEASTERN MORGAN COUNTY...

At 535 PM CDT, a severe thunderstorm was located over Jacksonville,
moving east at 45 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Jacksonville, Alexander, South Jacksonville, Sinclair and
Jacksonville Municipal Airport.

This includes Interstate 72 between mile markers 68 and 78.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Lincoln.

&&

LAT...LON 3972 9036 3977 9036 3986 9001 3968 8999
TIME...MOT...LOC 2235Z 269DEG 38KT 3975 9028 

HAIL...1.00IN
WIND...60MPH
 
$$

Shimon

529 
WWUS53 KILX 032249
SVSILX

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

ILC137-032315-
/O.CON.KILX.SV.W.0014.000000T0000Z-210503T2315Z/
Morgan-
549 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHEASTERN MORGAN COUNTY...

At 548 PM CDT, a severe thunderstorm was located near Alexander, or
near Jacksonville, moving east at 40 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Alexander.

This includes Interstate 72 between mile markers 71 and 79.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Lincoln.

&&

LAT...LON 3974 9018 3979 9019 3984 9001 3972 8999
TIME...MOT...LOC 2248Z 264DEG 33KT 3976 9013 

HAIL...1.00IN
WIND...60MPH
 
$$

Shimon

001 
WWUS53 KILX 032258
SVSILX

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

ILC137-032308-
/O.CAN.KILX.SV.W.0014.000000T0000Z-210503T2315Z/
Morgan-
558 PM CDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MORGAN COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
west central Illinois.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Lincoln.

LAT...LON 3974 9018 3979 9019 3984 9001 3972 8999
TIME...MOT...LOC 2257Z 269DEG 38KT 3976 8999 

$$

Shimon

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 3:31 PM CDT	Special Weather Statement	ILX	Knox	29 min
May 3, 3:59 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Schuyler	46 min
May 3, 4:10 PM CDT	Special Weather Statement	ILX	Schuyler	35 min
May 3, 4:30 PM CDT	Special Weather Statement	ILX	Fulton	30 min
May 3, 4:43 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon, Schuyler	47 min
May 3, 4:50 PM CDT	Tornado Warning	ILX	Cass, Morgan	25 min
May 3, 5:00 PM CDT	Special Weather Statement	ILX	Mason, Menard	30 min
May 3, 5:08 PM CDT	Tornado Warning	ILX	Cass, Menard, Morgan, Sangamon	37 min
May 3, 5:17 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Logan, Mason, Menard	43 min
May 3, 5:30 PM CDT	Tornado Warning Tornado observed	ILX	Menard, Sangamon	30 min
May 3, 5:52 PM CDT	Tornado Warning	ILX	Logan, Menard, Sangamon	23 min
May 3, 6:02 PM CDT	Special Weather Statement	ILX	Logan	43 min
May 3, 6:16 PM CDT	Tornado Warning Tornado observed	ILX	Christian, Logan, Macon, Sangamon	29 min
May 3, 6:37 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Sangamon	53 min
May 3, 6:42 PM CDT	Tornado Warning Tornado observed	ILX	Macon	33 min
May 3, 6:54 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	51 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2021 Every 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.