Alert archive / Illinois / Tornado Warnings in 2015

Tornado Warning 19, NWS Lincoln, IL

September 10, 2015Cass County, Mason County, Menard County, Illinois

NWS Lincoln, IL issued this tornado warning at Sep 10, 2015, 4:56 PM CDT for Cass County, Mason County, Menard County, Illinois. It was in force for 34 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: Sep 10, 2015, 4:56 PM CDT (21:56 UTC)
Expired: Sep 10, 2015, 5:30 PM CDT
In force: 34 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

Counties Cass County, IL, Mason County, IL, Menard County, IL

The radar

The Lincoln radar (KILX), 50 km from the middle of the area, began a volume at 21:58 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 nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.9 hours before the alert went out and 112 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: 2 J/kg
Mixed-layer CIN: -179 J/kg
Mixed-layer LCL: 1050 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 24 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.

336 
WFUS53 KILX 102156
TORILX
ILC017-125-129-102230-
/O.NEW.KILX.TO.W.0019.150910T2156Z-150910T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
456 PM CDT THU SEP 10 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL MASON COUNTY IN CENTRAL ILLINOIS...
  MENARD COUNTY IN CENTRAL ILLINOIS...
  NORTHEASTERN CASS COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 530 PM CDT

* AT 455 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR 
  KILBOURNE...OR 12 MILES SOUTHEAST OF HAVANA...MOVING SOUTHEAST AT 
  35 MPH.

  HAZARD...TORNADO. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. REPORTED BY MASON 
  COUNTY EMERGENCY MANAGEMENT. 

  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. 

* THE TORNADO WILL BE NEAR...
  PETERSBURG AROUND 510 PM CDT.
  GREENVIEW AROUND 515 PM CDT.
  ATHENS AROUND 520 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
OAKFORD...SWEETWATER...LINCOLNS NEW SALEM AND ATTERBERRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
LINCOLN.

&&

LAT...LON 4008 9008 4019 8994 4003 8961 3990 8983
TIME...MOT...LOC 2155Z 312DEG 32KT 4013 8996 

TORNADO...OBSERVED
HAIL...<.75IN

$$

GEELHART

3 follow-up statements

104 
WWUS53 KILX 102209
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
509 PM CDT THU SEP 10 2015

ILC125-102217-
/O.CAN.KILX.TO.W.0019.000000T0000Z-150910T2230Z/
MASON-
509 PM CDT THU SEP 10 2015

...THE TORNADO WARNING FOR SOUTH CENTRAL MASON COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED. 

ADDITIONAL STRONG THUNDERSTORMS WILL CONTINUE ALONG THE MASON AND 
CASS COUNTY BORDER THROUGH 530 PM.

LAT...LON 4006 9005 4013 8991 4001 8969 3990 8983
TIME...MOT...LOC 2207Z 309DEG 24KT 4004 8991 

$$

ILC017-129-102230-
/O.CON.KILX.TO.W.0019.000000T0000Z-150910T2230Z/
MENARD-CASS-
509 PM CDT THU SEP 10 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR WESTERN
MENARD AND EAST CENTRAL CASS COUNTIES...
    
AT 507 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 5 MILES NORTHWEST OF PETERSBURG...MOVING SOUTHEAST AT 30 
MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. 

LOCATIONS IMPACTED INCLUDE...
PETERSBURG...OAKFORD...LINCOLNS NEW SALEM AND ATTERBERRY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF BRIEF TORNADO TOUCHDOWNS. TAKE COVER IN 
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.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4006 9005 4013 8991 4001 8969 3990 8983
TIME...MOT...LOC 2207Z 309DEG 24KT 4004 8991 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

GEELHART

300 
WWUS53 KILX 102215
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
515 PM CDT THU SEP 10 2015

ILC017-102224-
/O.CAN.KILX.TO.W.0019.000000T0000Z-150910T2230Z/
CASS-
515 PM CDT THU SEP 10 2015

...THE TORNADO WARNING FOR EAST CENTRAL CASS COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4000 8997 4004 8992 3996 8978 3990 8983
TIME...MOT...LOC 2214Z 314DEG 39KT 3996 8989 

$$

ILC129-102230-
/O.CON.KILX.TO.W.0019.000000T0000Z-150910T2230Z/
MENARD-
515 PM CDT THU SEP 10 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
SOUTHWESTERN MENARD COUNTY...
    
AT 514 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED JUST NORTH OF TALLULA...OR 17 MILES EAST OF 
VIRGINIA...MOVING SOUTHEAST AT 45 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. 

LOCATIONS IMPACTED INCLUDE...
LINCOLNS NEW SALEM. 

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.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4000 8997 4004 8992 3996 8978 3990 8983
TIME...MOT...LOC 2214Z 314DEG 39KT 3996 8989 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

GEELHART

139 
WWUS53 KILX 102227
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
527 PM CDT THU SEP 10 2015

ILC129-102236-
/O.EXP.KILX.TO.W.0019.000000T0000Z-150910T2230Z/
MENARD-
527 PM CDT THU SEP 10 2015

...THE TORNADO WARNING FOR SOUTHWESTERN MENARD COUNTY WILL EXPIRE AT
530 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR SOUTH CENTRAL MENARD 
COUNTY UNTIL 6 PM. 

LAT...LON 4000 8997 4004 8992 3996 8978 3990 8983
TIME...MOT...LOC 2226Z 312DEG 32KT 3996 8989 

$$

GEELHART

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 3:45 AM CDT	Dense Fog Advisory	ILX	Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more	4 hr
Sep 10, 3:22 PM CDT	Special Weather Statement	ILX	Fulton	38 min
Sep 10, 4:04 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Mason, Tazewell	26 min
Sep 10, 4:28 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Mason, Schuyler	32 min
Sep 10, 5:24 PM CDT	Severe Thunderstorm Warning	ILX	Menard, Sangamon	36 min

Nearby

Tornado Warnings in Illinois, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.