Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 84, NWS St. Louis, MO

May 11, 20164 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 5:16 PM CDT for 4 counties in Missouri. It was in force for 44 min. 4 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: May 11, 2016, 5:16 PM CDT (22:16 UTC)
Expired: May 11, 2016, 6:00 PM CDT
In force: 44 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Audrain County, MO, Montgomery County, MO, Pike County, MO, Ralls County, MO

The radar

The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 22:18 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
May 11, 5:26 PM CDT	HAIL 1	1 W Mexico, MO	AT ROUTE NN WEST OF MEXICO
May 11, 5:30 PM CDT	HAIL 2.75	Mexico, MO	HAIL DAMAGE TO VEHICLE.
May 11, 5:34 PM CDT	HAIL 1.5	Mexico, MO	HAIL BEING OBSERVED ON THE WEST SIDE OF TOWN
May 11, 5:38 PM CDT	HAIL 1.75	Mexico, 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
May 11, 12:10 PM CDT	Severe Thunderstorm Watch	SPC	12 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.3 hours before the alert went out and 292 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: 905 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

191 
WUUS53 KLSX 112216
SVRLSX
MOC007-139-163-173-112300-
/O.NEW.KLSX.SV.W.0084.160511T2216Z-160511T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
516 PM CDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN PIKE COUNTY IN NORTHEASTERN MISSOURI...
  NORTHERN MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...
  AUDRAIN COUNTY IN CENTRAL MISSOURI...
  SOUTHWESTERN RALLS COUNTY IN NORTHEASTERN MISSOURI...

* UNTIL 600 PM CDT

* AT 516 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MEXICO...
  MOVING EAST AT 45 MPH.

  HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT 
           WIND DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  MEXICO...VANDALIA...WELLSVILLE...LADDONIA...FARBER...MARTINSBURG...
  CURRYVILLE...NEW HARTFORD...MIDDLETOWN...RUSH HILL...BENTON CITY...
  VANDIVER AND THOMPSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3907 9211 3923 9210 3943 9127 3905 9126
TIME...MOT...LOC 2216Z 252DEG 38KT 3914 9197 

HAIL...1.50IN
WIND...60MPH
 
$$

GLASS

2 follow-up statements

795 
WWUS53 KLSX 112228
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
528 PM CDT WED MAY 11 2016

MOC007-139-163-173-112300-
/O.CON.KLSX.SV.W.0084.000000T0000Z-160511T2300Z/
PIKE MO-MONTGOMERY MO-AUDRAIN MO-RALLS MO-
528 PM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR SOUTHWESTERN PIKE COUNTY IN NORTHEASTERN MISSOURI...NORTHERN
MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...AUDRAIN COUNTY IN
CENTRAL MISSOURI AND SOUTHWESTERN RALLS COUNTIES IN NORTHEASTERN
MISSOURI...

AT 528 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MEXICO...MOVING
NORTHEAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...TRAINED WEATHER SPOTTERS REPORTED QUARTER SIZE HAIL JUST
         SOUTHWEST OF MEXICO.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MEXICO...VANDALIA...WELLSVILLE...LADDONIA...FARBER...MARTINSBURG...
CURRYVILLE...NEW HARTFORD...MIDDLETOWN...RUSH HILL...BENTON CITY...
VANDIVER AND THOMPSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3907 9211 3923 9210 3943 9127 3905 9126
TIME...MOT...LOC 2228Z 246DEG 28KT 3918 9188 

HAIL...1.00IN
WIND...60MPH
 
$$

GLASS

361 
WWUS53 KLSX 112239
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
539 PM CDT WED MAY 11 2016

MOC007-139-163-173-112300-
/O.CON.KLSX.SV.W.0084.000000T0000Z-160511T2300Z/
PIKE MO-MONTGOMERY MO-AUDRAIN MO-RALLS MO-
539 PM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR SOUTHWESTERN PIKE COUNTY IN NORTHEASTERN MISSOURI...NORTHERN
MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...AUDRAIN COUNTY IN
CENTRAL MISSOURI AND SOUTHWESTERN RALLS COUNTIES IN NORTHEASTERN
MISSOURI...

AT 539 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MEXICO...MOVING
EAST AT 30 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...TRAINED WEATHER SPOTTERS REPORTED GOLF BALL SIZE HAIL IN
         MEXICO. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT WIND 
         DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MEXICO...VANDALIA...WELLSVILLE...LADDONIA...FARBER...MARTINSBURG...
CURRYVILLE...NEW HARTFORD...MIDDLETOWN...RUSH HILL...BENTON CITY...
VANDIVER AND THOMPSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 3907 9211 3923 9210 3943 9127 3905 9126
TIME...MOT...LOC 2239Z 263DEG 26KT 3917 9180 

HAIL...1.75IN
WIND...60MPH
 
$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 3:19 AM CDT	Dense Fog Advisory	LSX	Jefferson, Lincoln, Madison, Pike, Saint Charles, Sainte Genevieve and 3 more	6 hr
May 11, 10:08 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone	52 min
May 11, 10:25 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway	50 min
May 11, 10:52 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Montgomery, Pike	38 min
May 11, 11:24 AM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike	51 min
May 11, 12:26 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, Warren	49 min
May 11, 12:29 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Washington	46 min
May 11, 12:47 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Louis	28 min
May 11, 1:08 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	52 min
May 11, 1:12 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Louis	48 min
May 11, 1:51 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	54 min
May 11, 1:55 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis	65 min
May 11, 2:12 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve	63 min
May 11, 3:11 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois, Washington	49 min
May 11, 3:15 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	45 min
May 11, 3:52 PM CDT	Flash Flood Warning	LSX	Jefferson, Sainte Genevieve	4 hr
May 11, 3:57 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve	63 min
May 11, 4:05 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois, Washington	40 min
May 11, 4:45 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois, Washington	60 min
May 11, 5:18 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	27 min
May 11, 5:18 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Montgomery, Osage, Warren	42 min
May 11, 5:26 PM CDT	Flash Flood Warning	LSX	Sainte Genevieve, Saint Francois	4 hr
May 11, 5:35 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery	40 min
May 11, 5:45 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois, Washington	45 min
May 11, 5:56 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Lincoln, Montgomery, Pike, Ralls	64 min
May 11, 6:12 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Lincoln, Montgomery, Warren	48 min
May 11, 6:29 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Sainte Genevieve, Saint Francois, Washington	46 min
May 11, 6:42 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	48 min
May 11, 6:50 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike, Saint Charles, Warren	40 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2016 Every severe thunderstorm warning in 2016

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.