Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 101, NWS Lincoln, IL

May 25, 2011Shelby County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 25, 2011, 12:54 PM CDT for Shelby County, Illinois. It was in force for 66 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 25, 2011, 12:54 PM CDT (17:54 UTC)
Expired: May 25, 2011, 2:00 PM CDT
In force: 66 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Shelby County, IL

The radar

The Lincoln radar (KILX), 93 km from the middle of the area, began a volume at 17:54 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.

What was reported inside it

Time	Report	Where
May 25, 1:16 PM CDT	HAIL 0.75	Cowden, IL
May 25, 1:45 PM CDT	HAIL 0.88	Windsor, IL
May 25, 1:46 PM CDT	HAIL 1	4 Nw Windsor, IL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 25, 5:46 AM CDT	Tornado Watch	SPC	7 hr
May 25, 11:09 AM CDT	Tornado Watch PDS	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 5.9 hours before the alert went out and 84 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: 1832 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 253 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 10.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

281 
WUUS53 KILX 251754
SVRILX
ILC173-251900-
/O.NEW.KILX.SV.W.0101.110525T1754Z-110525T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1254 PM CDT WED MAY 25 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SHELBY COUNTY IN CENTRAL ILLINOIS...

* UNTIL 200 PM CDT.

* AT 1254 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  RAMSEY...OR 14 MILES SOUTHEAST OF NOKOMIS...AND MOVING NORTHEAST AT
  45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHELBYVILLE...COWDEN...LAKEWOOD...TOWER HILL...WESTERVELT...
  FINDLAY...WINDSOR...OCONEE...HERRICK...MODE...CLARKSBURG...
  STRASBURG...EAGLE CREEK STATE PARK AND WOLF CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR SOUTHEASTERN ILLINOIS.

LAT...LON 3922 8914 3935 8914 3935 8903 3940 8903
      3965 8881 3958 8880 3958 8872 3952 8872
      3952 8864 3948 8858 3945 8858 3945 8853
      3941 8847 3922 8880 3921 8904
TIME...MOT...LOC 1755Z 232DEG 38KT 3920 8905
WIND...HAIL 60MPH 1.00IN

$$

BARKER

4 follow-up statements

323 
WWUS53 KILX 251826
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
126 PM CDT WED MAY 25 2011

ILC173-251900-
/O.CON.KILX.SV.W.0101.000000T0000Z-110525T1900Z/
SHELBY IL-
126 PM CDT WED MAY 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SHELBY COUNTY
UNTIL 200 PM CDT...

A TORNADO WARNING IS ALSO IN EFFECT FOR SOUTHEASTERN SHELBY COUNTY 
UNTIL 100 PM CDT.

AT 121 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
SHELBYVILLE...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  FINDLAY...WINDSOR...STRASBURG...EAGLE CREEK STATE PARK AND WOLF
  CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3922 8914 3935 8914 3935 8903 3940 8903
      3965 8881 3958 8880 3958 8872 3952 8872
      3952 8864 3948 8858 3945 8858 3945 8853
      3941 8847 3922 8880 3921 8904
TIME...MOT...LOC 1825Z 232DEG 38KT 3937 8878
WIND...HAIL 60MPH 1.50IN

$$

BARKER

533 
WWUS53 KILX 251830 CCA
SVSILX

SEVERE WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE LINCOLN IL
130 PM CDT WED MAY 25 2011

ILC173-251900-
/O.CON.KILX.SV.W.0101.000000T0000Z-110525T1900Z/
SHELBY IL-
130 PM CDT WED MAY 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SHELBY COUNTY
UNTIL 200 PM CDT...

A TORNADO WARNING IS ALSO IN EFFECT FOR SOUTHEASTERN SHELBY COUNTY 
UNTIL 200 PM CDT.

AT 121 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
SHELBYVILLE...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  FINDLAY...WINDSOR...STRASBURG...EAGLE CREEK STATE PARK AND WOLF
  CREEK STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3922 8914 3935 8914 3935 8903 3940 8903
      3965 8881 3958 8880 3958 8872 3952 8872
      3952 8864 3948 8858 3945 8858 3945 8853
      3941 8847 3922 8880 3921 8904
TIME...MOT...LOC 1825Z 232DEG 38KT 3937 8878
WIND...HAIL 60MPH 1.50IN

$$

BARKER

748 
WWUS53 KILX 251840
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
140 PM CDT WED MAY 25 2011

ILC173-251900-
/O.CON.KILX.SV.W.0101.000000T0000Z-110525T1900Z/
SHELBY IL-
140 PM CDT WED MAY 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN SHELBY
COUNTY UNTIL 200 PM CDT...

A TORNADO WARNING IS IN EFFECT FOR SOUTHEAST SHELBY COUNTY UNTIL 200 
PM CDT.

AT 135 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
WINDSOR...OR 7 MILES EAST OF SHELBYVILLE...MOVING NORTHEAST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EASTERN SHELBY COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3951 8893 3965 8881 3959 8881 3958 8872
      3952 8872 3952 8864 3951 8864 3948 8858
      3945 8858 3945 8853 3941 8847 3922 8880
      3927 8871
TIME...MOT...LOC 1839Z 232DEG 38KT 3946 8863
WIND...HAIL 60MPH 1.50IN

$$

BARKER

891 
WWUS53 KILX 251901
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
201 PM CDT WED MAY 25 2011

ILC173-251911-
/O.EXP.KILX.SV.W.0101.000000T0000Z-110525T1900Z/
SHELBY IL-
201 PM CDT WED MAY 25 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SHELBY COUNTY HAS
EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 900 PM.

LAT...LON 3951 8893 3965 8881 3959 8881 3958 8872
      3952 8872 3952 8864 3951 8864 3948 8858
      3945 8858 3945 8853 3941 8847 3922 8880
      3927 8871
TIME...MOT...LOC 1840Z 232DEG 38KT 3946 8862

$$

BARKER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 2:25 AM CDT	Special Weather Statement	ILX	Morgan, Scott	65 min
May 25, 5:47 AM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Menard, Sangamon	58 min
May 25, 6:57 AM CDT	Special Weather Statement	ILX	Christian, Macon, Moultrie, Piatt, Shelby	63 min
May 25, 7:57 AM CDT	Tornado Warning	ILX	Piatt	13 min
May 25, 8:16 AM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	44 min
May 25, 9:29 AM CDT	River Flood Warning	ILX	Fulton, Knox	7 days
May 25, 9:29 AM CDT	River Flood Warning	ILX	Fulton	7 days
May 25, 11:59 AM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	61 min
May 25, 12:49 PM CDT	Areal Flood Advisory	ILX	Edgar, Vermilion	6 hr
May 25, 1:10 PM CDT	Tornado Warning	ILX	Effingham, Shelby	31 min
May 25, 1:20 PM CDT	Flash Flood Watch	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	10 hr
May 25, 1:44 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas, Moultrie	51 min
May 25, 2:23 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	23 min
May 25, 2:44 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	38 min
May 25, 3:20 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	25 min
May 25, 3:47 PM CDT	Tornado Warning	ILX	Cass, Morgan, Scott	43 min
May 25, 4:02 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	58 min
May 25, 4:17 PM CDT	Tornado Warning	ILX	Christian, Sangamon	25 min
May 25, 4:29 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Morgan, Schuyler	61 min
May 25, 4:33 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon	57 min
May 25, 4:57 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Logan, Menard, Sangamon	51 min
May 25, 5:00 PM CDT	Severe Thunderstorm Warning	ILX	Douglas, Macon, Moultrie, Piatt, Shelby	60 min
May 25, 5:01 PM CDT	Flash Flood Warning	ILX	Cass, Fulton, Schuyler	3 hr
May 25, 5:07 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	38 min
May 25, 5:08 PM CDT	Flash Flood Warning	ILX	Christian, Sangamon	3 hr
May 25, 5:13 PM CDT	Tornado Warning	ILX	Christian, Shelby	32 min
May 25, 5:19 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Logan, Mason, Menard, Tazewell	35 min
May 25, 5:37 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Piatt, Shelby	38 min
May 25, 5:42 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Macon, Piatt	37 min
May 25, 5:45 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, McLean, Peoria, Tazewell, Woodford	60 min
May 25, 5:51 PM CDT	Tornado Warning	ILX	DeWitt, McLean	24 min
May 25, 5:58 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Piatt	47 min
May 25, 6:01 PM CDT	Areal Flood Advisory	ILX	Christian, Logan, Macon, Sangamon	116 min
May 25, 6:11 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper	49 min
May 25, 6:12 PM CDT	Tornado Warning	ILX	McLean	40 min
May 25, 6:15 PM CDT	Severe Thunderstorm Warning	ILX	Knox, McLean, Marshall, Peoria, Stark, Woodford	40 min
May 25, 6:19 PM CDT	Flash Flood Warning	ILX	Knox	4 hr
May 25, 6:27 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	33 min
May 25, 6:42 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Coles, Douglas, Moultrie, Piatt	33 min
May 25, 6:53 PM CDT	Tornado Warning	ILX	Champaign, Piatt	37 min
May 25, 6:57 PM CDT	Areal Flood Advisory	ILX	Champaign, Coles, DeWitt, Douglas, Moultrie, Piatt	4 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2011 Every severe thunderstorm warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.