Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 73, NWS St. Louis, MO

May 11, 2016Jefferson County, Sainte Genevieve County, Missouri; Monroe County, Randolph County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 2:12 PM CDT for Jefferson County, Sainte Genevieve County, Missouri; Monroe County, Randolph County, Illinois. It was in force for 63 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, 2:12 PM CDT (19:12 UTC)
Expired: May 11, 2016, 3:15 PM CDT
In force: 63 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

Counties Monroe County, IL, Randolph County, IL, Jefferson County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 19:12 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
May 11, 2:16 PM CDT	HAIL 1.25	3 S Festus, MO
May 11, 2:39 PM CDT	HAIL 1	2 Ssw Maeystown, IL
May 11, 2:39 PM CDT	HAIL 1	Maeystown, IL
May 11, 2:50 PM CDT	HAIL 1	Fults, IL
May 11, 3:07 PM CDT	HAIL 0.5	Festus, MO
May 11, 3:18 PM CDT	HAIL 0.5	Red Bud, IL

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, 7.2 hours before the alert went out and 265 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.

761 
WUUS53 KLSX 111912
SVRLSX
ILC133-157-MOC099-186-112015-
/O.NEW.KLSX.SV.W.0073.160511T1912Z-160511T2015Z/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN RANDOLPH COUNTY IN SOUTHWESTERN ILLINOIS...
  SOUTHERN MONROE COUNTY IN SOUTHWESTERN ILLINOIS...
  NORTHWESTERN STE. GENEVIEVE COUNTY IN SOUTHEASTERN MISSOURI...
  SOUTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 315 PM CDT

* AT 212 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CRYSTAL CITY...
  MOVING EAST AT 25 MPH.

  HAZARD...PING PONG BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  FESTUS...CRYSTAL CITY...RED BUD...OLYMPIAN VILLAGE...EVANSVILLE...
  PRESTON...PRAIRIE DU ROCHER...PRAIRIE...RUMA...MAEYSTOWN...FULTS...MODOC...
  AMES...RENAULT...HEMATITE...VALLES MILL...CHALFIN BRIDGE AND KIDD.

THIS INCLUDES INTERSTATE 55 IN MISSOURI BETWEEN EXITS 162 AND 175.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3802 8985 3804 9041 3804 9053 3824 9048
      3822 8987
TIME...MOT...LOC 1912Z 261DEG 22KT 3818 9038 

HAIL...1.50IN
WIND...<50MPH
 
$$

GLASS

1 follow-up statement

129 
WWUS53 KLSX 111944
SVSLSX

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

ILC133-157-MOC099-186-112015-
/O.CON.KLSX.SV.W.0073.000000T0000Z-160511T2015Z/
RANDOLPH IL-MONROE IL-STE. GENEVIEVE MO-JEFFERSON MO-
244 PM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR NORTHWESTERN RANDOLPH...SOUTHERN MONROE...NORTHWESTERN STE.
GENEVIEVE AND SOUTHEASTERN JEFFERSON COUNTIES...

AT 244 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NEW DESIGN...
MOVING EAST AT 20 MPH.

HAZARD...QUARTER SIZE HAIL. 

SOURCE...TRAINED WEATHER SPOTTERS. QUARTER SIZE HAIL WAS REPORTED IN
         MAEYSTOWN.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

LOCATIONS IMPACTED INCLUDE...
RED BUD...EVANSVILLE...PRESTON...PRAIRIE DU ROCHER...PRAIRIE...RUMA...
MAEYSTOWN...FULTS...MODOC...AMES...RENAULT...CHALFIN BRIDGE AND KIDD.

THIS INCLUDES INTERSTATE 55 IN MISSOURI BETWEEN EXITS 162 AND 170.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3802 8985 3805 9038 3823 9035 3822 8987
TIME...MOT...LOC 1944Z 273DEG 17KT 3819 9017 

HAIL...1.00IN
WIND...<50MPH
 
$$

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, 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, 5:16 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Montgomery, Pike, Ralls	44 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
May 11, 2:32 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Madison, Washington	43 min
May 11, 3:02 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	43 min
May 11, 3:13 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Washington	47 min
May 11, 3:43 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	33 min
May 11, 3:59 PM CDT	Severe Thunderstorm Warning	LSX	Randolph, Saint Clair, Washington	19 min
May 11, 5:23 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	52 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2016 Severe Thunderstorm Warnings in Illinois, 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.