Alert archive / Illinois / Tornado Warnings in 2010

Tornado Warning 4, NWS Lincoln, IL

April 24, 2010Christian County, Sangamon County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 24, 2010, 5:54 PM CDT for Christian County, Sangamon County, Illinois. It was in force for 51 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
Apr 24, 2010, 5:54 PM CDT (22:54 UTC)
Expired
Apr 24, 2010, 6:45 PM CDT
In force
51 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

Counties Christian County, IL, Sangamon County, IL

The radar

The Lincoln radar (KILX), 73 km from the middle of the area, began a volume at 22:54 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 24, 3:20 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.9 hours before the alert went out and 107 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 2010-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 494 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 12:00Z on 2010-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939587897117Sfc1 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
494 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

964 
WFUS53 KILX 242254
TORILX
ILC021-167-242345-
/O.NEW.KILX.TO.W.0004.100424T2254Z-100424T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
554 PM CDT SAT APR 24 2010

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CHRISTIAN COUNTY IN CENTRAL ILLINOIS...
  EASTERN SANGAMON COUNTY IN CENTRAL ILLINOIS...

* UNTIL 645 PM CDT

* AT 549 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES SOUTHEAST OF CARLINVILLE...AND MOVING
  NORTHEAST AT 45 MPH.

  IN ADDITION...WIND DAMAGE HAS BEEN REPORTED WITH THIS STORM AS IT
  MOVED THROUGH THE ST. LOUIS AREA.

* LOCATIONS IMPACTED INCLUDE...
  SPRINGFIELD...AUBURN...DIVERNON...PAWNEE...CHATHAM...KINCAID...
  EDINBURG...ROCHESTER...RIVERTON...MECHANICSBURG...MOUNT AUBURN...
  SHERMAN...THAYER...GLENARM...SICILY...TOVEY...SANGCHRIS LAKE STATE
  PARK...SHARPSBURG...JEROME AND SOUTHERN VIEW.

THOSE ATTENDING THE LINCOLN PILGRIMMAGE ARE IN THE PATH OF THIS
STORM AND SHOULD PREPARE FOR DANGEROUS WEATHER CONDITIONS.

THIS INCLUDES INTERSTATE 55 BETWEEN MILE MARKERS 78 AND 105.

THIS INCLUDES INTERSTATE 72 BETWEEN MILE MARKERS 96 AND 115.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3939 8954 3939 8955 3953 8955 3953 8979
      3993 8961 3976 8919 3936 8953 3936 8954
TIME...MOT...LOC 2253Z 210DEG 40KT 3927 8975

$$

CHURCHILL
2 follow-up statements
296 
WWUS53 KILX 242318
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
618 PM CDT SAT APR 24 2010

ILC021-167-242345-
/O.CON.KILX.TO.W.0004.000000T0000Z-100424T2345Z/
CHRISTIAN IL-SANGAMON IL-
618 PM CDT SAT APR 24 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN SANGAMON AND
NORTHWESTERN CHRISTIAN COUNTIES UNTIL 645 PM CDT...

AT 613 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED JUST SOUTHEAST OF FARMERSVILLE...OR 9 MILES
SOUTHEAST OF VIRDEN...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  SPRINGFIELD...AUBURN...DIVERNON...PAWNEE...CHATHAM...KINCAID...
  EDINBURG...ROCHESTER...MECHANICSBURG...MOUNT AUBURN...RIVERTON...
  SHERMAN...GLENARM...SICILY...TOVEY...SANGCHRIS LAKE STATE PARK...
  SHARPSBURG...JEROME...SOUTHERN VIEW AND BERRY.

THIS INCLUDES INTERSTATE 55 BETWEEN MILE MARKERS 78 AND 105.

THIS INCLUDES INTERSTATE 72 BETWEEN MILE MARKERS 96 AND 115.

THOSE ATTENDING THE LINCOLN PILGRIMMAGE SHOULD PREPARE FOR
DANGEROUS WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3939 8954 3939 8955 3953 8955 3953 8979
      3993 8961 3976 8919 3936 8953 3936 8954
TIME...MOT...LOC 2316Z 210DEG 40KT 3949 8958
WIND...HAIL 65MPH <.50IN

$$

CHURCHILL
831 
WWUS53 KILX 242336
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
636 PM CDT SAT APR 24 2010

ILC021-167-242345-
/O.CON.KILX.TO.W.0004.000000T0000Z-100424T2345Z/
CHRISTIAN IL-SANGAMON IL-
636 PM CDT SAT APR 24 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN SANGAMON AND
NORTHWESTERN CHRISTIAN COUNTIES UNTIL 645 PM CDT...

AT 631 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WHITE OAK...OR 11 MILES EAST OF VIRDEN...
MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  PAWNEE...KINCAID...EDINBURG...ROCHESTER...MECHANICSBURG...MOUNT
  AUBURN...RIVERTON...SICILY...TOVEY...SANGCHRIS LAKE STATE PARK...
  SHARPSBURG...BERRY...ROBY...CLEAR LAKE...DAWSON AND SPAULDING.

THIS INCLUDES INTERSTATE 55 BETWEEN MILE MARKERS 78 AND 81.

THIS INCLUDES INTERSTATE 72 BETWEEN MILE MARKERS 104 AND 115.

THOSE ATTENDING THE LINCOLN PILGRIMMAGE ARE IN THE PATH
OF THIS STORM AND SHOULD PREPARE FOR DANGEROUS WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3936 8954 3946 8953 3951 8952 3953 8955
      3954 8966 3991 8956 3976 8919 3937 8952
TIME...MOT...LOC 2336Z 209DEG 24KT 3954 8954
WIND...HAIL <58MPH <.50IN

$$

CHURCHILL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 3:54 PM CDTWind AdvisoryILXCass, Champaign, Christian, Clark, Clay, Coles and 19 more6 hr
Apr 24, 5:56 PM CDTAreal Flood AdvisoryILXCass, Fulton, Knox, Mason, Schuyler, Stark6 hr
Apr 24, 6:46 PM CDTTornado WarningILXChristian, Sangamon34 min

Nearby

Tornado Warnings in Illinois, 2010Every tornado warning in 2010Tornadoes in 2010

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.