Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 13, NWS St. Louis, MO

September 16, 2016Randolph County, Illinois

NWS St. Louis, MO issued this tornado warning at Sep 16, 2016, 5:07 PM CDT for Randolph County, Illinois. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 16, 2016, 5:07 PM CDT (22:07 UTC)
Expired
Sep 16, 2016, 5:45 PM CDT
In force
38 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Randolph County, IL

The radar

The St Louis radar (KLSX), 119 km from the middle of the area, began a volume at 22:10 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.

What was reported inside it

TimeReportWhereRemark
Sep 16, 5:14 PM CDTTSTM WND DMGChester, IL6 INCH DIAMETER TREE LIMBS DOWN. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.1 hours before the alert went out and 271 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 2016-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 408 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 2016-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.193958Sfc1 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
408 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
908 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted.

060 
WFUS53 KLSX 162207
TORLSX
ILC157-162245-
/O.NEW.KLSX.TO.W.0013.160916T2207Z-160916T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
507 PM CDT FRI SEP 16 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS...

* UNTIL 545 PM CDT.

* AT 507 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR CHESTER...MOVING EAST AT 25 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  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...
  CHESTER AROUND 515 PM CDT. 
  BREMEN AROUND 525 PM CDT. 
  STEELEVILLE AROUND 540 PM CDT. 
  PERCY AROUND 545 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
KASKASKIA...WELGE...ROCKWOOD AND NEW PALESTINE.

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 3785 8966 3783 8966 3783 8967 3781 8967
      3785 8974 3785 8979 3787 8980 3788 8980
      3791 8984 3787 8990 3788 8995 3794 8994
      3795 8992 3797 8994 3800 8994 3803 8959
      3795 8960
TIME...MOT...LOC 2207Z 279DEG 20KT 3794 8989 

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

$$

CARNEY
2 follow-up statements
167 
WWUS53 KLSX 162220
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
520 PM CDT FRI SEP 16 2016

ILC157-162245-
/O.CON.KLSX.TO.W.0013.000000T0000Z-160916T2245Z/
RANDOLPH IL-
520 PM CDT FRI SEP 16 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
SOUTHEASTERN RANDOLPH COUNTY...
    
AT 520 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER BREMEN...MOVING EAST AT 35 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

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...
  STEELEVILLE AROUND 530 PM CDT. 
  PERCY AROUND 535 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
KASKASKIA...WELGE...ROCKWOOD AND NEW PALESTINE.

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 3785 8966 3783 8966 3783 8967 3781 8967
      3785 8974 3785 8979 3787 8980 3788 8980
      3791 8984 3787 8990 3788 8995 3794 8994
      3795 8992 3797 8994 3800 8994 3803 8959
      3795 8960
TIME...MOT...LOC 2220Z 257DEG 28KT 3796 8977 

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

$$

CARNEY
164 
WWUS53 KLSX 162245
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
545 PM CDT FRI SEP 16 2016

ILC157-162254-
/O.EXP.KLSX.TO.W.0013.000000T0000Z-160916T2245Z/
RANDOLPH IL-
545 PM CDT FRI SEP 16 2016

...THE TORNADO WARNING FOR SOUTHEASTERN RANDOLPH COUNTY WILL EXPIRE
AT 545 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAS EXITED THE WARNED AREA. THEREFORE...THE WARNING WILL
BE ALLOWED TO EXPIRE.

LAT...LON 3785 8966 3783 8966 3783 8967 3781 8967
      3785 8974 3785 8979 3787 8980 3788 8980
      3791 8984 3787 8990 3788 8995 3794 8994
      3795 8992 3797 8994 3800 8994 3803 8959
      3795 8960
TIME...MOT...LOC 2243Z 279DEG 20KT 3796 8977 

$$

CARNEY

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 16, 9:26 AM CDTAreal Flood AdvisoryLSXBond, Madison4 hr
Sep 16, 12:04 PM CDTAreal Flood AdvisoryLSXMacoupin4 hr
Sep 16, 2:27 PM CDTSpecial Weather StatementLSXMonroe48 min
Sep 16, 3:07 PM CDTSpecial Weather StatementLSXRandolph38 min
Sep 16, 3:13 PM CDTSevere Thunderstorm WarningLSXMonroe, Randolph, Saint Clair47 min
Sep 16, 3:30 PM CDTTornado WarningLSXRandolph30 min
Sep 16, 3:57 PM CDTTornado WarningLSXRandolph33 min
Sep 16, 4:25 PM CDTAreal Flood AdvisoryLSXMonroe, Randolph6 hr
Sep 16, 5:00 PM CDTSevere Thunderstorm WarningLSXRandolph30 min

Nearby

Tornado Warnings in Illinois, 2016Every tornado warning in 2016Tornadoes in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.