Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 307, NWS St. Louis, MO

June 13, 2011Jefferson County, Sainte Genevieve County, Saint Francois County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 13, 2011, 8:07 AM CDT for Jefferson County, Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 53 min. 2 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 13, 2011, 8:07 AM CDT (13:07 UTC)
Expired: Jun 13, 2011, 9:00 AM CDT
In force: 53 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Jefferson County, MO, Saint Francois County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 13:09 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 13, 8:14 AM CDT	HAIL 1	Blackwell, MO	LASTED APPROXIMATELY 10 MINUTES
Jun 13, 8:38 AM CDT	HAIL 0.25	1 Wsw French Village, 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 13, 5:16 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 1.1 hours before the alert went out and 297 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1547 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 106 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.

218 
WUUS53 KLSX 131307
SVRLSX
MOC099-186-187-131400-
/O.NEW.KLSX.SV.W.0307.110613T1307Z-110613T1400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
807 AM CDT MON JUN 13 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
  WESTERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 900 AM CDT

* AT 805 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  EAST OF OLD MINES...OR 9 MILES NORTHEAST OF POTOSI...AND MOVING
  EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LEADWOOD...BONNE TERRE...DESLOGE...FARMINGTON...PARK HILLS...
  BLOOMSDALE...ROCKY RIDGE...WEINGARTEN...COFFMAN...FRANKCLAY...
  VALLES MILL...LEADINGTON AND FRENCH VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3782 9064 3812 9064 3806 9014 3769 9021
TIME...MOT...LOC 1308Z 292DEG 26KT 3801 9064
WIND...HAIL 60MPH 1.00IN

$$

GLASS

2 follow-up statements

399 
WWUS53 KLSX 131338
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
838 AM CDT MON JUN 13 2011

MOC099-131348-
/O.CAN.KLSX.SV.W.0307.000000T0000Z-110613T1400Z/
JEFFERSON MO-
838 AM CDT MON JUN 13 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JEFFERSON COUNTY
IS CANCELLED...

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

LAT...LON 3782 9062 3806 9038 3808 9035 3808 9032
      3806 9014 3769 9021
TIME...MOT...LOC 1338Z 292DEG 26KT 3793 9038

$$

MOC186-187-131400-
/O.CON.KLSX.SV.W.0307.000000T0000Z-110613T1400Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
838 AM CDT MON JUN 13 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ST. FRANCOIS
AND WESTERN STE. GENEVIEVE COUNTIES UNTIL 900 AM CDT...

AT 833 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 7 MILES EAST OF BONNE TERRE...MOVING EAST AT 30
MPH.

LOCATIONS IMPACTED INCLUDE...
  FARMINGTON...BLOOMSDALE...ROCKY RIDGE...WEINGARTEN AND COFFMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3782 9062 3806 9038 3808 9035 3808 9032
      3806 9014 3769 9021
TIME...MOT...LOC 1338Z 292DEG 26KT 3793 9038
WIND...HAIL <50MPH 1.00IN

$$

GLASS

026 
WWUS53 KLSX 131356
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
856 AM CDT MON JUN 13 2011

MOC186-187-131406-
/O.EXP.KLSX.SV.W.0307.000000T0000Z-110613T1400Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
856 AM CDT MON JUN 13 2011

...THE SEVERE THUNDERSTORM WARNING FOR ST. FRANCOIS AND WESTERN STE.
GENEVIEVE COUNTIES WILL EXPIRE AT 900 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM.

LAT...LON 3782 9062 3806 9038 3808 9035 3808 9032
      3806 9014 3769 9021
TIME...MOT...LOC 1356Z 292DEG 26KT 3788 9023

$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 5:49 AM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Osage	26 min
Jun 13, 5:55 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway	50 min
Jun 13, 6:13 AM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Gasconade, Osage	47 min
Jun 13, 6:42 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway	48 min
Jun 13, 6:57 AM CDT	Areal Flood Advisory	LSX	Gasconade, Osage	3 hr
Jun 13, 7:11 AM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	49 min
Jun 13, 7:14 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Gasconade	46 min
Jun 13, 7:33 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Francois, Washington	42 min
Jun 13, 7:55 AM CDT	Severe Thunderstorm Warning	LSX	Crawford	50 min
Jun 13, 8:27 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Reynolds, Washington	48 min
Jun 13, 8:33 AM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Saint Louis, Warren	42 min
Jun 13, 8:51 AM CDT	Areal Flood Advisory	LSX	Crawford	6 hr
Jun 13, 8:55 AM CDT	Severe Thunderstorm Warning	LSX	Boone, Cole, Moniteau	50 min
Jun 13, 9:19 AM CDT	Severe Thunderstorm Warning	LSX	Reynolds	41 min
Jun 13, 9:44 AM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Moniteau, Osage	30 min
Jun 13, 2:57 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis, Marion	48 min
Jun 13, 3:37 PM CDT	Severe Thunderstorm Warning	LSX	Marion	38 min
Jun 13, 4:02 PM CDT	Flash Flood Watch	LSX	Audrain, Franklin, Jefferson, Knox, Lewis, Lincoln and 13 more	39 hr
Jun 13, 4:54 PM CDT	Areal Flood Advisory	LSX	Lewis	6 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2011 Every severe thunderstorm warning 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.