Alert archive / Illinois / Tornado Warnings in 2017

Tornado Warning 13, NWS Lincoln, IL

April 29, 2017Macon County, Moultrie County, Shelby County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 29, 2017, 5:50 PM CDT for Macon County, Moultrie County, Shelby County, Illinois. It was in force for 25 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 29, 2017, 5:50 PM CDT (22:50 UTC)
Expired
Apr 29, 2017, 6:15 PM CDT
In force
25 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Macon County, IL, Moultrie County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 80 km from the middle of the area, began a volume at 22:53 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 29, 3:57 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.8 hours before the alert went out and 62 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 2017-04-29Temperature 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 2017-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 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
776 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
568 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

852 
WFUS53 KILX 292250
TORILX
ILC115-139-173-292315-
/O.NEW.KILX.TO.W.0013.170429T2250Z-170429T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
550 PM CDT SAT APR 29 2017

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Moultrie County in central Illinois...
  North central Shelby County in central Illinois...
  Southern Macon County in central Illinois...

* Until 615 PM CDT

* At 549 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Westervelt, or 11 miles north of Shelbyville,
  moving northeast at 50 mph.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Weather spotters reported funnel cloud. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Findlay around 555 PM CDT. 
  Bethany around 600 PM CDT. 
  Sullivan around 605 PM CDT. 
  Lovington and Allenville around 610 PM CDT. 
  Arthur around 615 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Cadwell and Kirksville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3944 8891 3961 8901 3979 8859 3979 8847
      3956 8847
TIME...MOT...LOC 2249Z 245DEG 43KT 3956 8887 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

37
2 follow-up statements
636 
WWUS53 KILX 292306
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
606 PM CDT SAT APR 29 2017

ILC115-173-292316-
/O.CAN.KILX.TO.W.0013.000000T0000Z-170429T2315Z/
Shelby-Macon-
606 PM CDT SAT APR 29 2017

...THE TORNADO WARNING FOR NORTH CENTRAL SHELBY AND SOUTHERN MACON
COUNTIES IS CANCELLED...
    
The tornadic 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 1000 PM CDT for
central and east central Illinois.

LAT...LON 3951 8864 3952 8864 3952 8872 3958 8872
      3958 8881 3970 8881 3979 8859 3979 8847
      3956 8848
TIME...MOT...LOC 2306Z 245DEG 43KT 3965 8863 

$$

ILC139-292315-
/O.CON.KILX.TO.W.0013.000000T0000Z-170429T2315Z/
Moultrie-
606 PM CDT SAT APR 29 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR MOULTRIE
COUNTY...
        
At 606 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Sullivan, moving northeast at 50 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Weather spotters reported a funnel cloud. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Arthur around 615 PM CDT. 

Other locations impacted by this tornadic thunderstorm include
Cadwell and Kirksville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3951 8864 3952 8864 3952 8872 3958 8872
      3958 8881 3970 8881 3979 8859 3979 8847
      3956 8848
TIME...MOT...LOC 2306Z 245DEG 43KT 3965 8863 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

37
785 
WWUS53 KILX 292318
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
618 PM CDT SAT APR 29 2017

ILC139-292328-
/O.EXP.KILX.TO.W.0013.000000T0000Z-170429T2315Z/
Moultrie-
618 PM CDT SAT APR 29 2017

...THE TORNADO WARNING FOR MOULTRIE COUNTY HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been allowed to expire.

A severe thunderstorm watch remains in effect until 1000 PM CDT for
central and east central Illinois.

LAT...LON 3951 8864 3952 8864 3952 8872 3958 8872
      3958 8881 3970 8881 3979 8859 3979 8847
      3956 8848
TIME...MOT...LOC 2318Z 245DEG 43KT 3970 8848 

$$

37

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 6:19 AM CDTFlash Flood WarningILXClark, Coles, Cumberland, Edgar6 hr
Apr 29, 7:56 AM CDTFlash Flood WarningILXCrawford, Jasper6 hr
Apr 29, 4:40 PM CDTFlash Flood WarningILXMorgan, Scott6 hr
Apr 29, 4:46 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Shelby44 min
Apr 29, 4:50 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard, Sangamon40 min
Apr 29, 5:16 PM CDTFlash Flood WarningILXChristian, Sangamon6 hr
Apr 29, 5:26 PM CDTSevere Thunderstorm WarningILXChristian, Macon, Moultrie, Piatt, Shelby49 min
Apr 29, 5:34 PM CDTFlash Flood WarningILXCass, Fulton, Mason, Menard, Schuyler6 hr
Apr 29, 6:10 PM CDTFlash Flood WarningILXFulton, Mason, Peoria, Tazewell, Woodford6 hr
Apr 29, 6:14 PM CDTSevere Thunderstorm WarningILXChampaign, Clark, Clay, Coles, Cumberland, DeWitt and 11 more46 min
Apr 29, 6:22 PM CDTFlash Flood WarningILXColes, Cumberland, Effingham, Jasper, Macon, Moultrie and 1 more6 hr
Apr 29, 6:43 PM CDTFlash Flood WarningILXChampaign, Douglas, Edgar, Piatt, Vermilion6 hr
Apr 29, 6:50 PM CDTFlash Flood WarningILXClark, Crawford6 hr
Apr 29, 6:56 PM CDTSevere Thunderstorm WarningILXChampaign, Coles, Douglas, Edgar, Vermilion49 min
Apr 29, 6:57 PM CDTFlash Flood WarningILXClay, Lawrence, Richland3 hr

Nearby

Tornado Warnings in Illinois, 2017Every tornado warning in 2017Tornadoes in 2017

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.