Alert archive / Illinois / Tornado Warnings in 2010

Tornado Warning 37, NWS Lincoln, IL

December 31, 20104 counties in Illinois

NWS Lincoln, IL issued this tornado warning at Dec 31, 2010, 12:13 PM CST for 4 counties in Illinois. It was in force for 32 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
Dec 31, 2010, 12:13 PM CST (18:13 UTC)
Expired
Dec 31, 2010, 12:45 PM CST
In force
32 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon

Counties Logan County, IL, Mason County, IL, Menard County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 30 km from the middle of the area, began a volume at 18:16 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
Dec 31, 10:34 AM CSTTornado WatchSPC3 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.2 hours before the alert went out and 88 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 2010-12-31Temperature 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 2010-12-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 450 square meters per square second.1939587897Sfc1 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
506 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
450 m²/s²
0-3 km storm-relative helicity
427 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

941 
WFUS53 KILX 311813
TORILX
ILC107-125-129-179-311845-
/O.NEW.KILX.TO.W.0037.101231T1813Z-101231T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1213 PM CST FRI DEC 31 2010

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN LOGAN COUNTY IN CENTRAL ILLINOIS...
  EAST CENTRAL MASON COUNTY IN CENTRAL ILLINOIS...
  NORTH CENTRAL MENARD COUNTY IN CENTRAL ILLINOIS...
  SOUTHEASTERN TAZEWELL COUNTY IN CENTRAL ILLINOIS...

* UNTIL 1245 PM CST.

* AT 1212 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR EASTON...OR 8 MILES WEST OF MASON CITY...AND
  MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MASON CITY...EASTON...SAN JOSE...EMDEN...DELAVAN...HOPEDALE...
  ARMINGTON AND DILLON.

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 4052 8945 4033 8928 4008 8989 4015 9000
TIME...MOT...LOC 1813Z 231DEG 47KT 4018 8982

$$

HJS
2 follow-up statements
944 
WWUS53 KILX 311834
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1234 PM CST FRI DEC 31 2010

ILC129-311844-
/O.CAN.KILX.TO.W.0037.000000T0000Z-101231T1845Z/
MENARD IL-
1234 PM CST FRI DEC 31 2010

...THE TORNADO WARNING FOR NORTH CENTRAL MENARD COUNTY IS
CANCELLED...

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

LAT...LON 4020 8962 4030 8978 4052 8945 4033 8928
TIME...MOT...LOC 1834Z 231DEG 47KT 4035 8954

$$

ILC107-125-179-311845-
/O.CON.KILX.TO.W.0037.000000T0000Z-101231T1845Z/
LOGAN IL-MASON IL-TAZEWELL IL-
1234 PM CST FRI DEC 31 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN TAZEWELL...
EAST CENTRAL MASON AND NORTHWESTERN LOGAN COUNTIES UNTIL 1245 PM
CST...

AT 1230 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR SAN JOSE...OR 10 MILES NORTHEAST OF MASON
CITY...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  HOPEDALE...ARMINGTON AND DILLON.

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 4020 8962 4030 8978 4052 8945 4033 8928
TIME...MOT...LOC 1834Z 231DEG 47KT 4035 8954

$$

HJS
167 
WWUS53 KILX 311848
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1248 PM CST FRI DEC 31 2010

ILC107-125-179-311857-
/O.EXP.KILX.TO.W.0037.000000T0000Z-101231T1845Z/
LOGAN IL-MASON IL-TAZEWELL IL-
1248 PM CST FRI DEC 31 2010

...THE TORNADO WARNING FOR SOUTHEASTERN TAZEWELL...EAST CENTRAL MASON
AND NORTHWESTERN LOGAN COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 3 PM.

REMEMBER...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL 
LOGAN COUNTY IN CENTRAL ILLINOIS...AND EAST CENTRAL MASON COUNTY IN 
CENTRAL ILLINOIS UNTIL 115 PM.

LAT...LON 4020 8962 4030 8978 4052 8945 4033 8928
TIME...MOT...LOC 1834Z 231DEG 47KT 4035 8954

$$

HJS

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 31, 6:10 AM CSTAreal Flood AdvisoryILXCass, Fulton, Mason, Menard, Morgan, Schuyler and 2 more6 hr
Dec 31, 10:47 AM CSTTornado WarningILXCass, Morgan, Scott43 min
Dec 31, 11:40 AM CSTTornado WarningILXPeoria, Tazewell, Woodford50 min
Dec 31, 12:00 PM CSTTornado WarningILXMorgan30 min
Dec 31, 12:01 PM CSTAreal Flood AdvisoryILXCass, Mason, Menard, Morgan, Scott5 hr
Dec 31, 12:37 PM CSTTornado WarningILXLogan, Mason, Menard38 min
Dec 31, 1:10 PM CSTTornado WarningILXMcLean, Woodford50 min
Dec 31, 1:21 PM CSTSevere Thunderstorm WarningILXMcLean24 min
Dec 31, 1:48 PM CSTSevere Thunderstorm WarningILXClay, Cumberland, Effingham, Jasper, Richland, Shelby57 min
Dec 31, 3:51 PM CSTTornado WarningILXClark, Cumberland, Jasper39 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.