Alert archive / Missouri / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 111, NWS St. Louis, MO

May 11, 2016Callaway County, Montgomery County, Warren County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 10:14 PM CDT for Callaway County, Montgomery County, Warren County, Missouri. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 11, 2016, 10:14 PM CDT (03:14 UTC)
Expired: May 11, 2016, 11:00 PM CDT
In force: 46 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Callaway County, MO, Montgomery County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 67 km from the middle of the area, began a volume at 03:14 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.

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
May 11, 6:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 3.2 hours before the alert went out and 285 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: 748 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 1145 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 199 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

119 
WUUS53 KLSX 120314
SVRLSX
MOC027-139-219-120400-
/O.NEW.KLSX.SV.W.0111.160512T0314Z-160512T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1014 PM CDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
  MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...
  NORTHWESTERN WARREN COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 1100 PM CDT

* AT 1014 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  WILLIAMSBURG...MOVING EAST AT 35 MPH.

  HAZARD...QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  MONTGOMERY CITY...NEW FLORENCE...JONESBURG...BELLFLOWER...MINEOLA...BIG
  SPRING...SHAMROCK...BUELL...WILLIAMSBURG...HIGH HILL...RHINELAND...
  MCKITTRICK...REFORM...AMERICUS AND DANVILLE.

THIS INCLUDES INTERSTATE 70 IN MISSOURI BETWEEN EXITS 161 AND 183.
 
THIS ALSO INCLUDES  GRAHAM CAVE STATE PARK.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 3904 9177 3907 9126 3899 9126 3868 9124
      3869 9129 3871 9131 3871 9133 3870 9135
      3871 9140 3871 9144 3876 9181
TIME...MOT...LOC 0314Z 286DEG 29KT 3885 9172 

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

GKS

1 follow-up statement

348 
WWUS53 KLSX 120354
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1054 PM CDT WED MAY 11 2016

MOC027-139-219-120403-
/O.EXP.KLSX.SV.W.0111.000000T0000Z-160512T0400Z/
CALLAWAY MO-MONTGOMERY MO-WARREN MO-
1054 PM CDT WED MAY 11 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CALLAWAY...
MONTGOMERY AND NORTHWESTERN WARREN COUNTIES WILL EXPIRE AT 1100 PM
CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
EAST CENTRAL MISSOURI.

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

LAT...LON 3904 9177 3907 9126 3899 9126 3868 9124
      3869 9129 3871 9131 3871 9133 3870 9135
      3871 9140 3871 9144 3876 9181
TIME...MOT...LOC 0347Z 286DEG 29KT 3885 9172 

$$

GKS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 7:08 PM CDT	Severe Thunderstorm Warning	LSX	Marion	52 min
May 11, 7:14 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	46 min
May 11, 7:19 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Jefferson, Saint Charles, Saint Louis, Warren	41 min
May 11, 7:24 PM CDT	Severe Thunderstorm Warning	LSX	Washington	36 min
May 11, 7:33 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe, Pike, Ralls	42 min
May 11, 7:57 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Francois, Washington	48 min
May 11, 7:57 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis	48 min
May 11, 7:59 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	46 min
May 11, 8:03 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Washington	42 min
May 11, 8:15 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	45 min
May 11, 8:15 PM CDT	Tornado Warning	LSX	Crawford, Franklin, Washington	30 min
May 11, 8:45 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Jefferson, Washington	45 min
May 11, 8:48 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	42 min
May 11, 9:18 PM CDT	Flash Flood Warning	LSX	Crawford, Franklin, Jefferson, Sainte Genevieve, Washington	6 hr
May 11, 9:24 PM CDT	Flash Flood Warning	LSX	Sainte Genevieve, Saint Francois	6 hr
May 11, 9:24 PM CDT	Special Weather Statement	LSX	Callaway	51 min
May 11, 9:28 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	47 min
May 11, 9:29 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Jefferson, Sainte Genevieve, Saint Francois, Washington	61 min
May 11, 9:53 PM CDT	Severe Thunderstorm Warning	LSX	Lewis, Marion	52 min
May 11, 10:31 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Jefferson, Madison, Reynolds, Sainte Genevieve and 2 more	59 min
May 11, 11:51 PM CDT	Flash Flood Warning	LSX	Crawford, Iron, Madison, Sainte Genevieve, Saint Francois, Washington	6 hr
May 12, 9:12 AM CDT	River Flood Warning	LSX	Jefferson	3 days
May 12, 9:36 AM CDT	River Flood Warning	LSX	Perry, Sainte Genevieve	5 days
May 12, 10:21 AM CDT	River Flood Warning	LSX	Reynolds	45 hr
May 12, 2:41 PM CDT	River Flood Warning	LSX	Jefferson, Saint Louis	4 days

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.