Alert archive / Illinois / Tornado Warnings in 2014

Tornado Warning 8, NWS St. Louis, MO

April 3, 2014Madison County, Saint Clair County, Illinois; Saint Louis County, City of Saint Louis, Missouri

NWS St. Louis, MO issued this tornado warning at Apr 3, 2014, 5:23 AM CDT for Madison County, Saint Clair County, Illinois; Saint Louis County, City of Saint Louis, Missouri. It was in force for 37 min. 5 reports 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
Apr 3, 2014, 5:23 AM CDT (10:23 UTC)
Expired
Apr 3, 2014, 6:00 AM CDT
In force
37 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Observed
Hail
0.75 in

Counties Madison County, IL, Saint Clair County, IL, City of Saint Louis, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 48 km from the middle of the area, began a volume at 10:24 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.

What was reported inside it

TimeReportWhereRemark
Apr 3, 5:23 AM CDTTSTM WND DMGUniversity City, MOTREES DOWN ON DELMAR AT NORTH-SOUTH ROAD. TWITTER REPORT.
Apr 3, 5:23 AM CDTTORNADOUniversity City, MOMEDIA REPORTS 20 HOMES HAVE DAMAGE. TREES SNAPPED TWISTED. NO INJURIES.
Apr 3, 5:23 AM CDTTORNADOUniversity City, MOROOFING MATERIAL OFF HOME...TREES TWISTED...DEBRIS ON ROADS...AND FENCES BLOWN DOWN. NEAR MCKNIGHT AND OLIVE.
Apr 3, 5:23 AM CDTTORNADOUniversity City, MOPOSSIBLE TORNADIC DAMAGE...CITY ADMINISTRATOR REPORTS APPROX 100 HOMES WITH MINOR DAAMGE
Apr 3, 5:47 AM CDTTORNADOUniversity City, MOROOFING MATERIAL OFF HOME...TREES TWISTED...DEBRIS ON ROADS...AND FENCES BLOWN DOWN. NEAR MCKNIGHT AND OLIVE.

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 00:00Z, 10.4 hours before the alert went out and 208 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°0°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.

899 
WFUS53 KLSX 031023
TORLSX
ILC119-163-MOC189-510-031100-
/O.NEW.KLSX.TO.W.0008.140403T1023Z-140403T1100Z/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN MADISON COUNTY IN SOUTHWEST ILLINOIS...
  NORTHWESTERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS...
  CENTRAL ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...
  NORTHERN ST. LOUIS CITY IN EAST CENTRAL MISSOURI...

* UNTIL 600 AM CDT

* AT 520 AM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR UNIVERSITY
  CITY...AND MOVING EAST AT 35 MPH.

  HAZARD...DAMAGING TORNADO.

  SOURCE...RADAR CONFIRMED TORNADO.

  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.

* THE TORNADO WILL BE NEAR...
  ST. LOUIS AND JENNINGS AROUND 530 AM CDT.
  VENICE AND BROOKLYN AROUND 535 AM CDT.
  MADISON AND GRANITE CITY AROUND 540 AM CDT.
  FAIRMONT CITY AND WASHINGTON PARK AROUND 545 AM CDT.
  PONTOON BEACH AND CASEYVILLE AROUND 550 AM CDT.
  COLLINSVILLE AND GLEN CARBON AROUND 555 AM CDT.

THIS WARNING INCLUDES HORSESHOE LAKE STATE PARK AND SCOTT JOPLIN
HISTORIC SITE.

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 3878 8995 3861 8995 3862 9040 3871 9039
TIME...MOT...LOC 1023Z 264DEG 29KT 3867 9031

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

$$

TILLY
3 follow-up statements
724 
WWUS53 KLSX 031031
SVSLSX

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

MOC189-031041-
/O.CAN.KLSX.TO.W.0008.000000T0000Z-140403T1100Z/
ST. LOUIS MO-
531 AM CDT THU APR 3 2014

...THE TORNADO WARNING FOR CENTRAL ST. LOUIS COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3861 8995 3862 9031 3865 9030 3872 9025
      3873 9021 3878 8995
TIME...MOT...LOC 1031Z 268DEG 30KT 3866 9018

$$

ILC119-163-MOC510-031100-
/O.CON.KLSX.TO.W.0008.000000T0000Z-140403T1100Z/
MADISON IL-ST. CLAIR IL-ST. LOUIS CITY MO-
531 AM CDT THU APR 3 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN ST. LOUIS CITY...
NORTHWESTERN ST. CLAIR AND SOUTHWESTERN MADISON COUNTIES UNTIL 600 AM
CDT...

AT 528 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ST. LOUIS...AND MOVING EAST AT 35 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...
  FAIRMONT CITY AND WASHINGTON PARK AROUND 540 AM CDT.
  CASEYVILLE AND PONTOON BEACH AROUND 545 AM CDT.
  COLLINSVILLE AND MARYVILLE AROUND 550 AM CDT.

THIS WARNING INCLUDES HORSESHOE LAKE STATE PARK AND SCOTT JOPLIN
HISTORIC SITE.

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 3861 8995 3862 9031 3865 9030 3872 9025
      3873 9021 3878 8995
TIME...MOT...LOC 1031Z 268DEG 30KT 3866 9018

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

$$

TILLY
109 
WWUS53 KLSX 031038
SVSLSX

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

MOC510-031049-
/O.CAN.KLSX.TO.W.0008.000000T0000Z-140403T1100Z/
ST. LOUIS CITY MO-
538 AM CDT THU APR 3 2014

...THE TORNADO WARNING FOR NORTHERN ST. LOUIS CITY COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3862 9018 3867 9018 3869 9020 3873 9021
      3878 8995 3861 8995
TIME...MOT...LOC 1039Z 264DEG 31KT 3867 9009

$$

ILC119-163-031100-
/O.CON.KLSX.TO.W.0008.000000T0000Z-140403T1100Z/
MADISON IL-ST. CLAIR IL-
538 AM CDT THU APR 3 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN ST. CLAIR AND
SOUTHWESTERN MADISON COUNTIES UNTIL 600 AM CDT...

AT 537 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR FAIRMONT CITY...AND MOVING EAST AT 35 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...
  COLLINSVILLE AND CASEYVILLE AROUND 545 AM CDT.
  MARYVILLE AND GLEN CARBON AROUND 550 AM CDT.

THIS WARNING INCLUDES HORSESHOE LAKE STATE PARK.

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 3862 9018 3867 9018 3869 9020 3873 9021
      3878 8995 3861 8995
TIME...MOT...LOC 1039Z 264DEG 31KT 3867 9009

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

$$

TILLY
319 
WWUS53 KLSX 031055
SVSLSX

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

ILC119-163-031105-
/O.EXP.KLSX.TO.W.0008.000000T0000Z-140403T1100Z/
MADISON IL-ST. CLAIR IL-
555 AM CDT THU APR 3 2014

...THE TORNADO WARNING FOR NORTHWESTERN ST. CLAIR AND SOUTHWESTERN
MADISON COUNTIES WILL EXPIRE AT 600 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.  HOWEVER...HEAVY RAIN IS 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 3862 9018 3867 9018 3869 9020 3873 9021
      3878 8995 3861 8995
TIME...MOT...LOC 1055Z 266DEG 32KT 3868 8991

$$

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, 6:01 AM CDTTornado WarningLSXClinton, Saint Clair29 min
Apr 3, 6:23 AM CDTTornado WarningLSXClinton37 min
Apr 3, 12:03 PM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair42 min
Apr 3, 3:16 PM CDTFlash Flood WarningLSXMonroe, Saint Clair, Washington7 hr
Apr 2, 8:55 PM CDTRiver Flood WarningLSXLincoln60 hr
Apr 3, 2:19 AM CDTAreal Flood AdvisoryLSXBoone, Moniteau3 hr
Apr 3, 3:06 AM CDTFlash Flood WarningLSXBoone, Callaway, Cole, Moniteau6 hr
Apr 3, 4:55 AM CDTFlash Flood WarningLSXGasconade, Osage6 hr
Apr 3, 5:05 AM CDTSevere Thunderstorm WarningLSXSaint Louis40 min
Apr 3, 6:15 AM CDTRiver Flood WarningLSXCole64 hr
Apr 3, 8:11 AM CDTAreal Flood AdvisoryLSXJefferson, Sainte Genevieve, Saint Francois, Washington3 hr
Apr 3, 8:18 AM CDTRiver Flood WarningLSXOsage30 hr
Apr 3, 8:58 AM CDTRiver Flood WarningLSXMonroe4 days
Apr 3, 9:11 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway49 min
Apr 3, 9:23 AM CDTAreal Flood WarningLSXBoone, Callaway, Cole, Moniteau3 hr
Apr 3, 1:00 PM CDTAreal Flood WarningLSXBoone, Moniteau24 hr
Apr 3, 1:09 PM CDTSevere Thunderstorm WarningLSXFranklin36 min
Apr 3, 1:32 PM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Saint Louis43 min
Apr 3, 1:43 PM CDTFlash Flood WarningLSXCrawford, Franklin, Gasconade, Jefferson, Washington8 hr
Apr 3, 1:54 PM CDTRiver Flood WarningLSXMarion42 hr
Apr 3, 1:56 PM CDTSevere Thunderstorm WarningLSXCole, Moniteau49 min
Apr 3, 2:45 PM CDTFlash Flood WarningLSXBoone, Callaway, Cole, Moniteau, Osage8 hr
Apr 3, 3:36 PM CDTRiver Flood WarningLSXJefferson4 days
Apr 3, 3:36 PM CDTRiver Flood WarningLSXFranklin71 hr
Apr 3, 5:37 PM CDTSevere Thunderstorm WarningLSXCole, Osage38 min
Apr 3, 5:48 PM CDTTornado WarningLSXCole, Osage27 min
Apr 3, 6:06 PM CDTTornado WarningLSXFranklin, Gasconade, Osage24 min
Apr 3, 6:31 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Saint Charles, Warren44 min
Apr 3, 6:34 PM CDTSevere Thunderstorm WarningLSXKnox, Lewis41 min
Apr 3, 6:36 PM CDTSevere Thunderstorm WarningLSXLewis, Marion, Monroe, Shelby39 min

Nearby

Tornado Warnings in Illinois, 2014Tornado Warnings in Missouri, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.