Alert archive / Illinois / Tornado Warnings in 2005

Tornado Warning 5, NWS Lincoln, IL

April 12, 2005Logan County, Macon County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 12, 2005, 2:16 PM CDT for Logan County, Macon County, Illinois. It was in force for 48 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 12, 2005, 2:16 PM CDT (19:16 UTC)
Expired
Apr 12, 2005, 3:04 PM CDT
In force
48 min
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

Counties Logan County, IL, Macon County, IL

The radar

The Lincoln radar (KILX), 37 km from the middle of the area, began a volume at 19:19 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 12, 11:05 AM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.3 hours before the alert went out and 56 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 2005-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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 2005-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -102 square meters per square second.19395878Sfc1 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
15 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
589 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-102 m²/s²
0-3 km storm-relative helicity
-222 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.

000 
WFUS53 KILX 121917
TORILX
ILC107-115-122000-
/O.NEW.KILX.TO.W.0005.050412T1916Z-050412T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
216 PM CDT TUE APR 12 2005

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LOGAN COUNTY IN CENTRAL ILLINOIS
  WESTERN MACON COUNTY IN CENTRAL ILLINOIS

* UNTIL 300 PM CDT

* AT 216 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM...CAPABLE OF PRODUCING TORNADOES...5 MILES
  SOUTH OF HARRISTOWN...OR ABOUT 9 MILES SOUTHWEST OF DECATUR...
  MOVING NORTHWEST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HARRISTOWN
  LATHAM

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. THE STORM MAY
NOT BE PRODUCING A TORNADO AT THE MOMENT...BUT IS EXPECTED TO DURING
THE WARNING PERIOD. FOR YOUR SAFETY...GO INDOORS NOW TO AN INTERIOR
ROOM OR A BASEMENT...AND STAY AWAY FROM WINDOWS.

FUNNEL CLOUDS WITH THIS STORM MAY TOUCH DOWN AT ANY TIME. DO NOT WAIT
FOR THE FUNNEL TO TOUCH DOWN BEFORE TAKING SHELTER.

REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL EMERGENCY
MANAGER...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3974 8913 3978 8902 4002 8916 4000 8924

$$

MILLER
2 follow-up statements
000 
WWUS53 KILX 121935
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
232 PM CDT TUE APR 12 2005

ILC107-115-122000-
/O.CON.KILX.TO.W.0005.000000T0000Z-050412T2000Z/
MACON-LOGAN-
232 PM CDT TUE APR 12 2005

...A TORNADO WARNING CONTINUES UNTIL 300 PM CDT FOR WESTERN MACON AND
SOUTHEASTERN LOGAN COUNTIES...

BETWEEN 210 PM AND 215 PM...TRAINED WEATHER SPOTTERS REPORTED FUNNEL 
CLOUDS NEAR THE TOWN OF MACON IN SOUTHERN MACON COUNTY. THE STORM 
THAT PRODUCED THE FUNNEL CLOUDS WAS LOCATED 11 MILES SOUTH OF 
LATHAM...OR ABOUT 9 MILES WEST OF DECATUR...MOVING NORTHWEST AT 15 MPH.

PEOPLE NEAR THESE LOCATIONS ARE STILL THREATENED...
  NIANTIC.  
  LATHAM.

FUNNEL CLOUDS MAY TOUCH DOWN AT ANY TIME. DO NOT WAIT FOR THE FUNNEL 
TO TOUCH DOWN BEFORE TAKING SHELTER.

REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL EMERGENCY
MANAGER...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3979 8912 3979 8909 3998 8910 3995 8923

$$

MILLER

&
000 
WWUS53 KILX 122004
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
247 PM CDT TUE APR 12 2005

ILC107-115-121957-
/O.CAN.KILX.TO.W.0005.000000T0000Z-050412T2000Z/
MACON-LOGAN-
247 PM CDT TUE APR 12 2005

...THE TORNADO WARNING FOR WESTERN MACON AND SOUTHEASTERN LOGAN 
COUNTIES HAS BEEN CANCELLED...

AT 245 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE THUNDERSTORM THAT HAD PROMPTED THE WARNING HAD WEAKENED...THUS
THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM. REMAIN 
ALERT TO THE POSSIBILITY OF MORE SEVERE WEATHER.

REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL EMERGENCY
MANAGER...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3979 8912 3979 8909 3998 8910 3995 8923

$$

MILLER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 1:19 PM CDTSpecial Weather StatementILXMorgan, Sangamon116 min
Apr 12, 1:34 PM CDTSevere Thunderstorm WarningILXMorgan56 min
Apr 12, 1:37 PM CDTSevere Thunderstorm WarningILXShelby53 min
Apr 12, 1:54 PM CDTSpecial Weather StatementILXChristian, Clay, Effingham, Logan, Macon, Mason and 6 more3 hr
Apr 12, 2:17 PM CDTSevere Thunderstorm WarningILXMenard64 min
Apr 12, 2:23 PM CDTTornado WarningILXMorgan57 min

Nearby

Tornado Warnings in Illinois, 2005Every tornado warning in 2005Tornadoes in 2005

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.