Alert archive / Missouri / Tornado Warnings in 2015

Tornado Warning 35, NWS St. Louis, MO

June 28, 2015Saint Charles County, Saint Louis County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 28, 2015, 8:26 PM CDT for Saint Charles County, Saint Louis County, Missouri. It was in force for 37 min. 6 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
Jun 28, 2015, 8:26 PM CDT (01:26 UTC)
Expired
Jun 28, 2015, 9:03 PM CDT
In force
37 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 24 km from the middle of the area, began a volume at 01:28 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
Jun 28, 8:42 PM CDTTSTM WND GST 40Olivette, MOAT OLIVE AND LINDBERG.
Jun 28, 8:42 PM CDTHAIL 0.25Olivette, MOAT OLIVE AND LINDBERG.
Jun 28, 8:47 PM CDTHAIL 0.5Frontenac, MO
Jun 28, 8:50 PM CDTHAIL 11 Ne Brentwood, MOBRENTWOOD FOREST AREA.
Jun 28, 8:50 PM CDTHAIL 1Brentwood, MO
Jun 28, 8:51 PM CDTHAIL 11 S Brentwood, MO

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 28, 3:03 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.4 hours before the alert went out and 224 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 2015-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 281 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 00:00Z on 2015-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
281 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
331 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

879 
WFUS53 KLSX 290126
TORLSX
MOC183-189-290215-
/O.NEW.KLSX.TO.W.0035.150629T0126Z-150629T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
826 PM CDT SUN JUN 28 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
  NORTHEASTERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 915 PM CDT

* AT 823 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR MARYLAND HEIGHTS...AND MOVING EAST AT 20
  MPH.

  HAZARD...TORNADO AND PING PONG BALL 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...
  BRIDGETON AROUND 835 PM CDT.
  ST. ANN AND CREVE COEUR AROUND 840 PM CDT.
  OVERLAND AND OLIVETTE AROUND 845 PM CDT.
  ST. JOHN AND BEL-RIDGE AROUND 850 PM CDT.
  UNIVERSITY CITY AND HILLSDALE AROUND 855 PM CDT.
  JENNINGS AROUND 900 PM CDT.

THIS WARNING INCLUDES FIRST MISSOURI STATE CAPITOL HISTORIC SITE.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 225 TO EXIT 231.

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 3858 9034 3870 9062 3884 9054 3881 9021
TIME...MOT...LOC 0126Z 291DEG 19KT 3873 9050

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

GLASS
3 follow-up statements
661 
WWUS53 KLSX 290134
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
834 PM CDT SUN JUN 28 2015

MOC183-290144-
/O.CAN.KLSX.TO.W.0035.000000T0000Z-150629T0215Z/
ST. CHARLES MO-
834 PM CDT SUN JUN 28 2015

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

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

LAT...LON 3858 9034 3867 9055 3876 9047 3876 9024
TIME...MOT...LOC 0134Z 298DEG 28KT 3867 9044

$$

MOC189-290215-
/O.CON.KLSX.TO.W.0035.000000T0000Z-150629T0215Z/
ST. LOUIS MO-
834 PM CDT SUN JUN 28 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ST. LOUIS COUNTY
UNTIL 915 PM CDT...

AT 833 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR CREVE COEUR...AND MOVING SOUTHEAST AT 30 MPH.

HAZARD...TORNADO AND PING PONG BALL 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...
  LADUE AND OLIVETTE AROUND 840 PM CDT.
  RICHMOND HEIGHTS AND BRENTWOOD AROUND 845 PM CDT.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI NEAR EXIT 231.

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 3858 9034 3867 9055 3876 9047 3876 9024
TIME...MOT...LOC 0134Z 298DEG 28KT 3867 9044

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

GLASS
210 
WWUS53 KLSX 290152
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
852 PM CDT SUN JUN 28 2015

MOC189-290215-
/O.CON.KLSX.TO.W.0035.000000T0000Z-150629T0215Z/
ST. LOUIS MO-
852 PM CDT SUN JUN 28 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL ST. LOUIS COUNTY
UNTIL 915 PM CDT...

AT 849 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR WARSON WOODS...AND MOVING SOUTHEAST AT 30 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. LARGE HAIL HAS BEEN 
         REPORTED.

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 CENTRAL ST.
LOUIS COUNTY.

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 3858 9034 3863 9046 3876 9035 3876 9024
TIME...MOT...LOC 0152Z 303DEG 26KT 3859 9036

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

GLASS
240 
WWUS53 KLSX 290203
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
903 PM CDT SUN JUN 28 2015

MOC189-290213-
/O.CAN.KLSX.TO.W.0035.000000T0000Z-150629T0215Z/
ST. LOUIS MO-
903 PM CDT SUN JUN 28 2015

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

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.  HOWEVER...HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 1000 PM.

LAT...LON 3858 9034 3863 9046 3876 9035 3876 9024
TIME...MOT...LOC 0203Z 303DEG 26KT 3855 9027

$$

GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:28 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles47 min
Jun 28, 8:00 PM CDTSevere Thunderstorm WarningLSXCrawford45 min
Jun 28, 8:02 PM CDTTornado WarningLSXSaint Charles, Saint Louis28 min
Jun 28, 8:48 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis42 min
Jun 28, 9:17 PM CDTAreal Flood AdvisoryLSXSaint Louis, City of Saint Louis3 hr
Jun 28, 9:50 PM CDTFlash Flood WarningLSXSaint Louis6 hr
Jun 29, 5:08 PM CDTSevere Thunderstorm WarningLSXPike37 min

Nearby

Tornado Warnings in Missouri, 2015Every tornado warning in 2015Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.