Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 64, NWS St. Louis, MO

May 11, 20164 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 10:52 AM CDT for 4 counties in Missouri. It was in force for 38 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
May 11, 2016, 10:52 AM CDT (15:52 UTC)
Expired
May 11, 2016, 11:30 AM CDT
In force
38 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Audrain County, MO, Callaway County, MO, Montgomery County, MO, Pike County, MO

The radar

The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 15:55 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, 11:00 AM CDTHAIL 0.25Martinsburg, MO
May 11, 11:00 AM CDTHAIL 1Farber, MO
May 11, 11:07 AM CDTHAIL 0.7Farber, MO
May 11, 11:10 AM CDTHAIL 0.5Vandalia, MO
May 11, 11:35 AM CDTHAIL 0.25Middletown, MO

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

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 3.9 hours before the alert went out and 276 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 12:00Z on 2016-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 12:00Z on 2016-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
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.

617 
WUUS53 KLSX 111552
SVRLSX
MOC007-027-139-163-111630-
/O.NEW.KLSX.SV.W.0064.160511T1552Z-160511T1630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1052 AM 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...
  NORTHEASTERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
  MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...
  EASTERN AUDRAIN COUNTY IN CENTRAL MISSOURI...

* UNTIL 1130 AM CDT

* AT 1051 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MARTINSBURG...
  MOVING EAST AT 30 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...
  VANDALIA...MONTGOMERY CITY...WELLSVILLE...NEW FLORENCE...JONESBURG...
  LADDONIA...BELLFLOWER...FARBER...MARTINSBURG...SHAMROCK...BUELL...NEW
  HARTFORD...MIDDLETOWN AND RUSH HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3931 9177 3932 9125 3885 9127 3898 9172
TIME...MOT...LOC 1551Z 274DEG 28KT 3908 9175 

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

KELLY
1 follow-up statement
975 
WWUS53 KLSX 111617
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1117 AM CDT WED MAY 11 2016

MOC027-111627-
/O.CAN.KLSX.SV.W.0064.000000T0000Z-160511T1630Z/
CALLAWAY MO-
1117 AM CDT WED MAY 11 2016

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

LAT...LON 3931 9159 3932 9125 3899 9127 3901 9164
TIME...MOT...LOC 1617Z 274DEG 28KT 3907 9149 

$$

MOC007-139-163-111630-
/O.CON.KLSX.SV.W.0064.000000T0000Z-160511T1630Z/
PIKE MO-MONTGOMERY MO-AUDRAIN MO-
1117 AM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR SOUTHWESTERN PIKE COUNTY IN NORTHEASTERN MISSOURI...NORTHERN
MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI AND NORTHEASTERN AUDRAIN
COUNTIES IN CENTRAL MISSOURI...

AT 1117 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BUELL...MOVING
EAST AT 30 MPH.

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

SOURCE...TRAINED WEATHER SPOTTERS. 

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

LOCATIONS IMPACTED INCLUDE...
VANDALIA...WELLSVILLE...BELLFLOWER...FARBER...BUELL...NEW HARTFORD AND
MIDDLETOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3931 9159 3932 9125 3899 9127 3901 9164
TIME...MOT...LOC 1617Z 274DEG 28KT 3907 9149 

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, 10:08 AM CDTSevere Thunderstorm WarningLSXAudrain, Boone52 min
May 11, 10:25 AM CDTSevere Thunderstorm WarningLSXAudrain, Callaway50 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.