Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 103, NWS St. Louis, MO

May 11, 2016Crawford County, Franklin County, Washington County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 8:03 PM CDT for Crawford County, Franklin County, Washington County, Missouri. It was in force for 42 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, 8:03 PM CDT (01:03 UTC)
Expired
May 11, 2016, 8:45 PM CDT
In force
42 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Possible
Hail
1.5 in
Wind
60.0 mph

Counties Crawford County, MO, Franklin County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 74 km from the middle of the area, began a volume at 01:04 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, 8:08 PM CDTHAIL 1.53 Se Bourbon, MO
May 11, 8:10 PM CDTHAIL 12 S Bourbon, MO
May 11, 8:15 PM CDTTORNADO3 Sse Bourbon, MONWS STORM SURVEY CONCLUDED AN EF-2 RATED TORNADO WITH A PATH LENGTH OF AROUND 4.5 MILES AND MAX WIDTH OF 700 YARDS. TORNADO LIFTED AROUND 825 PM.
May 11, 8:17 PM CDTHAIL 15 Ssw St. Clair, 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.

IssuedProductOfficeLasted
May 11, 12:10 PM CDTSevere Thunderstorm WatchSPC12 hr
May 11, 6:30 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.1 hours before the alert went out and 273 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 00:00Z on 2016-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1205 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 00:00Z on 2016-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
1205 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

542 
WUUS53 KLSX 120103
SVRLSX
MOC055-071-221-120145-
/O.NEW.KLSX.SV.W.0103.160512T0103Z-160512T0145Z/

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
  NORTHEASTERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
  NORTHWESTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 845 PM CDT

* AT 803 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BOURBON...
  MOVING EAST AT 25 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...
  SULLIVAN...BOURBON...ANTHONIES MILL...MIRAMIGUOA PARK AND ST. CLOUD. 

THIS INCLUDES INTERSTATE 44 IN MISSOURI BETWEEN EXITS 218 AND 228.
 
THIS ALSO INCLUDES  ONONDAGA CAVE STATE PARK AND MERAMEC STATE PARK.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS!

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN ST LOUIS.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER
INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE WINDS AND
TORNADOES. MOVE QUICKLY TO A SAFE SHELTER SUCH AS AN INTERIOR ROOM...A
BATHROOM...CLOSET OR BASEMENT.

&&

LAT...LON 3805 9124 3817 9130 3832 9100 3808 9086
TIME...MOT...LOC 0103Z 248DEG 20KT 3813 9121 

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

TES

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 7:08 PM CDTSevere Thunderstorm WarningLSXMarion52 min
May 11, 7:14 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve46 min
May 11, 7:19 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Jefferson, Saint Charles, Saint Louis, Warren41 min
May 11, 7:24 PM CDTSevere Thunderstorm WarningLSXWashington36 min
May 11, 7:33 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Pike, Ralls42 min
May 11, 7:57 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Francois, Washington48 min
May 11, 7:57 PM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Saint Louis48 min
May 11, 7:59 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve46 min
May 11, 8:15 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis45 min
May 11, 8:15 PM CDTTornado WarningLSXCrawford, Franklin, Washington30 min
May 11, 8:45 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Jefferson, Washington45 min
May 11, 8:48 PM CDTSevere Thunderstorm WarningLSXJefferson42 min
May 11, 9:18 PM CDTFlash Flood WarningLSXCrawford, Franklin, Jefferson, Sainte Genevieve, Washington6 hr
May 11, 9:24 PM CDTFlash Flood WarningLSXSainte Genevieve, Saint Francois6 hr
May 11, 9:24 PM CDTSpecial Weather StatementLSXCallaway51 min
May 11, 9:28 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway47 min
May 11, 9:29 PM CDTSevere Thunderstorm WarningLSXCrawford, Iron, Jefferson, Sainte Genevieve, Saint Francois, Washington61 min
May 11, 9:53 PM CDTSevere Thunderstorm WarningLSXLewis, Marion52 min
May 11, 10:14 PM CDTSevere Thunderstorm WarningLSXCallaway, Montgomery, Warren46 min
May 11, 10:31 PM CDTSevere Thunderstorm WarningLSXCrawford, Iron, Jefferson, Madison, Reynolds, Sainte Genevieve and 2 more59 min
May 11, 11:51 PM CDTFlash Flood WarningLSXCrawford, Iron, Madison, Sainte Genevieve, Saint Francois, Washington6 hr
May 12, 9:12 AM CDTRiver Flood WarningLSXJefferson3 days
May 12, 9:36 AM CDTRiver Flood WarningLSXPerry, Sainte Genevieve5 days
May 12, 10:21 AM CDTRiver Flood WarningLSXReynolds45 hr
May 12, 2:41 PM CDTRiver Flood WarningLSXJefferson, Saint Louis4 days

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.