Alert archive / Missouri / Tornado Warnings in 2015

Tornado Warning 34, 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, 8:02 PM CDT for Saint Charles County, Saint Louis County, Missouri. It was in force for 28 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
Jun 28, 2015, 8:02 PM CDT (01:02 UTC)
Expired
Jun 28, 2015, 8:30 PM CDT
In force
28 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

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

The radar

The St Louis radar (KLSX), 21 km from the middle of the area, began a volume at 01:03 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, 8:05 PM CDTFUNNEL CLOUDSt. Peters, MOSPOTTER AT MID RIVERS MALL DRIVE AND I-70...SEES FUNNEL CLOUD TO HIS NORTH.
Jun 28, 8:05 PM CDTTORNADO3 N St. Peters, MOLARGE TREES AND POWER LINES DOWN. ROOF DAMAGE REPORTED TO HOMES.
Jun 28, 8:07 PM CDTTORNADOSt. Peters, MODEBRIS SEEN NORTH OF ARROWHEAD INDUSTRIAL BLVD...JUST WEST NORTHWEST OF HWY 370.
Jun 28, 8:09 PM CDTHAIL 1St. Peters, MOAT HWY 370 AND HARRY TRUMAN.
Jun 28, 8:14 PM CDTHAIL 1St. Charles, MOI70 NEAR MISSOURI RIVER

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, 1.0 hours before the alert went out and 221 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.

652 
WFUS53 KLSX 290102
TORLSX
MOC183-189-290130-
/O.NEW.KLSX.TO.W.0034.150629T0102Z-150629T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
802 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...
  NORTH CENTRAL ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 830 PM CDT

* AT 801 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR ST. PAUL...AND MOVING EAST AT 25 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...
  ST. PETERS AROUND 810 PM CDT.
  HARVESTER AROUND 815 PM CDT.
  ST. CHARLES AROUND 820 PM CDT.
  MARYLAND HEIGHTS AROUND 825 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE KAMPVILLE.

THIS WARNING INCLUDES FIRST MISSOURI STATE CAPITOL HISTORIC SITE.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 216 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 3885 9035 3870 9050 3880 9075 3891 9066
      3891 9064 3889 9063 3887 9058 3887 9055
      3889 9053
TIME...MOT...LOC 0102Z 286DEG 21KT 3884 9064

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

$$

GLASS
3 follow-up statements
515 
WWUS53 KLSX 290108
SVSLSX

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

MOC183-189-290130-
/O.CON.KLSX.TO.W.0034.000000T0000Z-150629T0130Z/
ST. CHARLES MO-ST. LOUIS MO-
808 PM CDT SUN JUN 28 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ST. LOUIS
AND CENTRAL ST. CHARLES COUNTIES UNTIL 830 PM CDT...

AT 805 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR ST. PETERS...AND
MOVING EAST AT 25 MPH.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS 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.

THIS TORNADIC STORM WILL BE NEAR...
  HARVESTER AROUND 815 PM CDT.
  ST. CHARLES AROUND 820 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE KAMPVILLE.

THIS WARNING INCLUDES FIRST MISSOURI STATE CAPITOL HISTORIC SITE.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 216 TO EXIT 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 3885 9035 3870 9050 3880 9075 3891 9066
      3891 9064 3889 9063 3887 9058 3887 9055
      3889 9053
TIME...MOT...LOC 0108Z 286DEG 21KT 3883 9060

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

$$

GLASS
854 
WWUS53 KLSX 290113
SVSLSX

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

MOC183-189-290130-
/O.CON.KLSX.TO.W.0034.000000T0000Z-150629T0130Z/
ST. CHARLES MO-ST. LOUIS MO-
813 PM CDT SUN JUN 28 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ST. LOUIS
AND CENTRAL ST. CHARLES COUNTIES UNTIL 830 PM CDT...

AT 810 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED NEAR ST. PETERS...AND MOVING EAST AT 25 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS WILL
         BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL
         BE DESTROYED. CONSIDERABLE DAMAGE TO HOMES...BUSINESSES AND
         VEHICLES IS LIKELY AND COMPLETE DESTRUCTION POSSIBLE.

THE TORNADO WILL BE NEAR...
  ST. CHARLES AROUND 820 PM CDT.

THIS WARNING INCLUDES FIRST MISSOURI STATE CAPITOL HISTORIC SITE.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 216 TO EXIT 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...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 3885 9035 3870 9050 3880 9075 3891 9066
      3891 9064 3889 9063 3887 9058 3887 9055
      3889 9053
TIME...MOT...LOC 0113Z 288DEG 20KT 3882 9057

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...<.75IN

$$

GLASS
895 
WWUS53 KLSX 290120
SVSLSX

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

MOC183-189-290130-
/O.CON.KLSX.TO.W.0034.000000T0000Z-150629T0130Z/
ST. CHARLES MO-ST. LOUIS MO-
820 PM CDT SUN JUN 28 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ST. LOUIS
AND CENTRAL ST. CHARLES COUNTIES UNTIL 830 PM CDT...

AT 818 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ST. CHARLES...AND MOVING EAST AT 15 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 AFFECT MAINLY RURAL AREAS OF CENTRAL ST.
CHARLES AND NORTH CENTRAL ST. LOUIS COUNTIES.

THIS WARNING INCLUDES FIRST MISSOURI STATE CAPITOL HISTORIC SITE.

THIS WARNING ALSO INCLUDES...
INTERSTATE 70 IN MISSOURI FROM EXIT 224 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 3870 9050 3874 9060 3887 9058 3887 9055
      3889 9053 3885 9035
TIME...MOT...LOC 0121Z 287DEG 15KT 3881 9055

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

$$

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, 8:26 PM CDTTornado WarningLSXSaint Charles, Saint Louis37 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.