Alert archive / Illinois / Tornado Warnings in 2014

Tornado Warning 10, NWS St. Louis, MO

April 3, 2014Clinton County, Illinois

NWS St. Louis, MO issued this tornado warning at Apr 3, 2014, 6:23 AM CDT for Clinton County, Illinois. It was in force for 37 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 3, 2014, 6:23 AM CDT (11:23 UTC)
Expired
Apr 3, 2014, 7:00 AM CDT
In force
37 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Clinton County, IL

The radar

The St Louis radar (KLSX), 124 km from the middle of the area, began a volume at 11:24 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 00:00Z, 11.4 hours before the alert went out and 182 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 00:00Z on 2014-04-03Temperature 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 00:00Z on 2014-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 307 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
307 m²/s²
0-3 km storm-relative helicity
511 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.

159 
WFUS53 KLSX 031123
TORLSX
ILC027-031200-
/O.NEW.KLSX.TO.W.0010.140403T1123Z-140403T1200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
623 AM CDT THU APR 3 2014

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 700 AM CDT

* AT 620 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR BREESE...AND MOVING EAST AT 55 MPH.

  HAZARD...TORNADO.

  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...
  BOULDER AROUND 635 AM CDT.
  SHATTUC AROUND 640 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE HUEY...HOFFMAN AND FERRIN.

THIS WARNING INCLUDES CARLYLE LAKE RECREATIONAL AREA.

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 3854 8914 3851 8944 3867 8943 3873 8914
TIME...MOT...LOC 1124Z 261DEG 47KT 3858 8942

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

$$

TILLY
2 follow-up statements
845 
WWUS53 KLSX 031140
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
640 AM CDT THU APR 3 2014

ILC027-031200-
/O.CON.KLSX.TO.W.0010.000000T0000Z-140403T1200Z/
CLINTON IL-
640 AM CDT THU APR 3 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN CLINTON COUNTY
UNTIL 700 AM CDT...

AT 637 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR SHATTUC...AND MOVING EAST AT 50 MPH.

HAZARD...TORNADO.

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 AFFECT MAINLY RURAL AREAS OF EASTERN
CLINTON COUNTY.

THIS WARNING INCLUDES CARLYLE LAKE RECREATIONAL AREA.

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 3852 8937 3868 8936 3873 8914 3856 8914
      3854 8915
TIME...MOT...LOC 1139Z 261DEG 43KT 3863 8920

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

$$

TILLY
991 
WWUS53 KLSX 031146
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
646 AM CDT THU APR 3 2014

ILC027-031156-
/O.CAN.KLSX.TO.W.0010.000000T0000Z-140403T1200Z/
CLINTON IL-
646 AM CDT THU APR 3 2014

...THE TORNADO WARNING FOR EASTERN CLINTON COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER...GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

LAT...LON 3852 8937 3868 8936 3873 8914 3856 8914
      3854 8915
TIME...MOT...LOC 1146Z 261DEG 42KT 3863 8910

$$

TILLY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 8:30 PM CDTRiver Flood WarningLSXFayette5 days
Apr 3, 5:19 AM CDTSevere Thunderstorm WarningLSXMadison, Saint Clair56 min
Apr 3, 5:23 AM CDTTornado Warning Tornado observedLSXMadison, Saint Clair37 min
Apr 3, 6:01 AM CDTTornado WarningLSXClinton, Saint Clair29 min
Apr 3, 12:03 PM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair42 min
Apr 3, 3:16 PM CDTFlash Flood WarningLSXMonroe, Saint Clair, Washington7 hr

Nearby

Tornado Warnings in Illinois, 2014Every tornado warning in 2014Tornadoes in 2014

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.