Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 62, NWS St. Louis, MO

May 11, 2016Audrain County, Boone County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 10:08 AM CDT for Audrain County, Boone County, Missouri. It was in force for 52 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
May 11, 2016, 10:08 AM CDT (15:08 UTC)
Expired
May 11, 2016, 11:00 AM CDT
In force
52 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Audrain County, MO, Boone County, MO

The radar

The St Louis radar (KLSX), 130 km from the middle of the area, began a volume at 15:07 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
May 11, 10:15 AM CDTTSTM WND DMG6 Sw Thompson, MOQUARTER SIZE HAIL AND SMALL TREE LIMBS BLOWN DOWN...ROUTE D EAST OF ROUTE DD.
May 11, 10:15 AM CDTHAIL 16 Sw Thompson, MOQUARTER SIZE HAIL AND SMALL TREE LIMBS BLOWN DOWN...ROUTE D EAST OF ROUTE DD.
May 11, 10:35 AM CDTHAIL 0.25Mexico, MOSOUTH SIDE OF MEXICO.
May 11, 10:35 AM CDTHAIL 0.7Mexico, MO
May 11, 10:35 AM CDTHAIL 14 S Mexico, MO
May 11, 10:45 AM CDTHAIL 0.54 Se Mexico, MOON ROUTE JJ.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 3.1 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2016-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1843 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2016-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
1843 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
1.1
Supercell composite
10.5

Open this sounding in Storm Lab

The text

As transmitted.

803 
WUUS53 KLSX 111508
SVRLSX
MOC007-019-111600-
/O.NEW.KLSX.SV.W.0062.160511T1508Z-160511T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1008 AM CDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL AUDRAIN COUNTY IN CENTRAL MISSOURI...
  NORTHEASTERN BOONE COUNTY IN CENTRAL MISSOURI...

* UNTIL 1100 AM CDT

* AT 1008 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HALLSVILLE...
  MOVING NORTHEAST AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  MEXICO...CENTRALIA...HALLSVILLE...MURRY...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 3932 9203 3914 9168 3906 9203 3906 9213
      3904 9213 3902 9221 3919 9233
TIME...MOT...LOC 1508Z 230DEG 22KT 3912 9213 

HAIL...1.25IN
WIND...60MPH
 
$$

KELLY
2 follow-up statements
741 
WWUS53 KLSX 111518
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1018 AM CDT WED MAY 11 2016

MOC019-111527-
/O.CAN.KLSX.SV.W.0062.000000T0000Z-160511T1600Z/
BOONE MO-
1018 AM CDT WED MAY 11 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BOONE COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING IS CANCELLED.

LAT...LON 3920 9180 3914 9169 3906 9204 3906 9211
      3924 9210 3923 9186
TIME...MOT...LOC 1517Z 255DEG 28KT 3913 9203 

$$

MOC007-111600-
/O.CON.KLSX.SV.W.0062.000000T0000Z-160511T1600Z/
AUDRAIN MO-
1018 AM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT
FOR SOUTH CENTRAL AUDRAIN COUNTY...

AT 1017 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHEAST
OF CENTRALIA...MOVING EAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
MEXICO...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 3920 9180 3914 9169 3906 9204 3906 9211
      3924 9210 3923 9186
TIME...MOT...LOC 1517Z 255DEG 28KT 3913 9203 

HAIL...1.25IN
WIND...60MPH
 
$$

KELLY
467 
WWUS53 KLSX 111540
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1040 AM CDT WED MAY 11 2016

MOC007-111600-
/O.CON.KLSX.SV.W.0062.000000T0000Z-160511T1600Z/
AUDRAIN MO-
1040 AM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT
FOR SOUTH CENTRAL AUDRAIN COUNTY...

AT 1040 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MEXICO...MOVING
EAST AT 55 MPH.

HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

SOURCE...TRAINED WEATHER SPOTTERS REPORTED QUARTER SIZE HAIL WITH
         THIS STORM. 

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

LOCATIONS IMPACTED INCLUDE...
MEXICO...BENTON CITY AND VANDIVER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3920 9180 3914 9169 3907 9199 3912 9199
      3922 9187 3923 9186
TIME...MOT...LOC 1540Z 272DEG 46KT 3912 9183 

HAIL...1.25IN
WIND...60MPH
 
$$

KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 3:19 AM CDTDense Fog AdvisoryLSXJefferson, Lincoln, Madison, Pike, Saint Charles, Sainte Genevieve and 3 more6 hr
May 11, 10:25 AM CDTSevere Thunderstorm WarningLSXAudrain, Callaway50 min
May 11, 10:52 AM CDTSevere Thunderstorm WarningLSXAudrain, Callaway, Montgomery, Pike38 min
May 11, 11:24 AM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Pike51 min
May 11, 12:26 PM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Saint Louis, Warren49 min
May 11, 12:29 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Washington46 min
May 11, 12:47 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Louis28 min
May 11, 1:08 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis52 min
May 11, 1:12 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis48 min
May 11, 1:51 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis54 min
May 11, 1:55 PM CDTSevere Thunderstorm WarningLSXSaint Louis65 min
May 11, 2:12 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve63 min
May 11, 3:11 PM CDTSevere Thunderstorm WarningLSXSaint Francois, Washington49 min
May 11, 3:15 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve, Saint Francois45 min
May 11, 3:52 PM CDTFlash Flood WarningLSXJefferson, Sainte Genevieve4 hr
May 11, 3:57 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve63 min
May 11, 4:05 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois, Washington40 min
May 11, 4:45 PM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve, Saint Francois, Washington60 min
May 11, 5:16 PM CDTSevere Thunderstorm WarningLSXAudrain, Montgomery, Pike, Ralls44 min
May 11, 5:18 PM CDTSevere Thunderstorm WarningLSXCrawford27 min
May 11, 5:18 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Montgomery, Osage, Warren42 min
May 11, 5:26 PM CDTFlash Flood WarningLSXSainte Genevieve, Saint Francois4 hr
May 11, 5:35 PM CDTSevere Thunderstorm WarningLSXCallaway, Montgomery40 min
May 11, 5:45 PM CDTSevere Thunderstorm WarningLSXSaint Francois, Washington45 min
May 11, 5:56 PM CDTSevere Thunderstorm WarningLSXAudrain, Lincoln, Montgomery, Pike, Ralls64 min
May 11, 6:12 PM CDTSevere Thunderstorm WarningLSXCallaway, Lincoln, Montgomery, Warren48 min
May 11, 6:29 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Sainte Genevieve, Saint Francois, Washington46 min
May 11, 6:42 PM CDTSevere Thunderstorm WarningLSXPike, Ralls48 min
May 11, 6:50 PM CDTSevere Thunderstorm WarningLSXLincoln, Montgomery, Pike, Saint Charles, Warren40 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2016Every 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.