Alert archive / Missouri / Tornado Warnings in 2011

Tornado Warning 126, NWS St. Louis, MO

June 19, 20114 counties in Missouri

NWS St. Louis, MO issued this tornado warning at Jun 19, 2011, 2:28 AM CDT for 4 counties in Missouri. It was in force for 47 min. 3 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 19, 2011, 2:28 AM CDT (07:28 UTC)
Expired: Jun 19, 2011, 3:15 AM CDT
In force: 47 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Iron County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 105 km from the middle of the area, began a volume at 07:31 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

Time	Report	Where	Remark
Jun 19, 2:50 AM CDT	TSTM WND DMG	Farmington, MO	NUMEROUS TREES UPROOTED OR SNAPPED...12 TO 14 INCHES IN DIAMETER AND UP TO 40 FEET TALL...ON THE SOUTH SIDE OF TOWN. TIME ESTIMATED.
Jun 19, 2:52 AM CDT	TSTM WND GST 60	Farmington, MO
Jun 19, 2:54 AM CDT	TSTM WND GST 51	1 S Farmington, 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.

Issued	Product	Office	Lasted
Jun 18, 8:26 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.5 hours before the alert went out and 306 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 4246 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1103 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 15.1

Open this sounding in Storm Lab

The text

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

959 
WFUS53 KLSX 190728
TORLSX
MOC093-186-187-221-190815-
/O.NEW.KLSX.TO.W.0126.110619T0728Z-110619T0815Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
228 AM CDT SUN JUN 19 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN IRON COUNTY IN SOUTHEAST MISSOURI...
  SOUTHERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
  SOUTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 315 AM CDT

* AT 227 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 9 MILES WEST OF IRONDALE...OR 9 MILES SOUTH OF
  POTOSI...AND MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BISMARCK...LEADWOOD...BONNE TERRE...DESLOGE...FARMINGTON...
  BELLEVIEW...IRONDALE...IRON MOUNTAIN...PARK HILLS...KNOB LICK...
  ROCKY RIDGE...WEINGARTEN...COFFMAN...WOMAC...CALEDONIA...
  FRANKCLAY...DOE RUN...LEADINGTON...LIBERTYVILLE AND RIVER AUX
  VASES.

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 3768 9095 3792 9095 3797 9007 3769 9008
      3766 9012
TIME...MOT...LOC 0729Z 272DEG 51KT 3780 9080

$$

TRUETT

1 follow-up statement

969 
WWUS53 KLSX 190743
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
243 AM CDT SUN JUN 19 2011

MOC093-221-190753-
/O.CAN.KLSX.TO.W.0126.000000T0000Z-110619T0815Z/
IRON MO-WASHINGTON MO-
243 AM CDT SUN JUN 19 2011

...THE TORNADO WARNING FOR SOUTHEASTERN WASHINGTON AND NORTHERN IRON
COUNTIES IS CANCELLED...

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

LAT...LON 3767 9061 3768 9065 3794 9064 3797 9007
      3770 9008 3766 9012
TIME...MOT...LOC 0743Z 273DEG 58KT 3778 9047

$$

MOC186-187-190815-
/O.CON.KLSX.TO.W.0126.000000T0000Z-110619T0815Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
243 AM CDT SUN JUN 19 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR ST. FRANCOIS AND SOUTHERN
STE. GENEVIEVE COUNTIES UNTIL 315 AM CDT...

AT 239 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR BISMARCK...MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
  FARMINGTON...KNOB LICK...ROCKY RIDGE...WEINGARTEN...COFFMAN...
  WOMAC...LIBERTYVILLE AND RIVER AUX VASES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 3767 9061 3768 9065 3794 9064 3797 9007
      3770 9008 3766 9012
TIME...MOT...LOC 0743Z 273DEG 54KT 3778 9047

$$

TRUETT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:26 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Moniteau	49 min
Jun 18, 9:09 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole	66 min
Jun 18, 9:29 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Osage	46 min
Jun 18, 9:56 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway	37 min
Jun 18, 10:11 PM CDT	Severe Thunderstorm Warning	LSX	Osage	37 min
Jun 18, 10:23 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Osage	25 min
Jun 18, 10:36 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Moniteau	39 min
Jun 18, 10:53 PM CDT	Flash Flood Warning	LSX	Cole, Osage	8 hr
Jun 18, 10:54 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Montgomery, Pike	36 min
Jun 18, 10:59 PM CDT	Severe Thunderstorm Warning	LSX	Gasconade, Osage	46 min
Jun 18, 11:20 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike	40 min
Jun 18, 11:29 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Warren	32 min
Jun 18, 11:55 PM CDT	Severe Thunderstorm Warning	LSX	Pike	50 min
Jun 19, 12:13 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade	47 min
Jun 19, 12:52 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Warren	53 min
Jun 19, 1:08 AM CDT	Severe Thunderstorm Warning	LSX	Franklin	32 min
Jun 19, 1:51 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Reynolds, Washington	39 min
Jun 19, 1:59 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve	46 min
Jun 19, 2:07 AM CDT	Severe Thunderstorm Warning	LSX	Lewis	33 min
Jun 19, 2:25 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Jefferson, Madison, Reynolds, Sainte Genevieve, Saint Francois and 1 more	50 min
Jun 19, 2:36 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Louis	39 min
Jun 19, 2:39 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Madison, Reynolds	36 min
Jun 19, 2:56 AM CDT	Tornado Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	34 min
Jun 19, 3:00 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Madison, Reynolds	60 min
Jun 19, 10:10 AM CDT	River Flood Warning	LSX	Boone, Callaway, Cole, Moniteau	11 hr
Jun 19, 10:10 AM CDT	River Flood Warning	LSX	Saint Charles, Saint Louis	11 hr
Jun 19, 2:48 PM CDT	River Flood Warning	LSX	Lewis	68 hr

Nearby

Tornado Warnings in Missouri, 2011 Every tornado warning in 2011 Tornadoes in 2011

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.