Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 183, NWS St. Louis, MO

May 22, 20114 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 22, 2011, 5:57 PM CDT for 4 counties in Missouri. It was in force for 48 min. 10 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 22, 2011, 5:57 PM CDT (22:57 UTC)
Expired: May 22, 2011, 6:45 PM CDT
In force: 48 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Audrain County, MO, Boone County, MO, Callaway County, MO, Montgomery County, MO

The radar

The St Louis radar (KLSX), 146 km from the middle of the area, began a volume at 23:00 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	Remark
May 22, 5:58 PM CDT	HAIL 0.75	3 Nw Hallsville, MO
May 22, 6:01 PM CDT	HAIL 0.7	4 W Murry, MO	NORTH OF COLUMBIA IN BROWNS STATION
May 22, 6:01 PM CDT	HAIL 0.88	12 N Columbia, MO
May 22, 6:05 PM CDT	TSTM WND GST 65	Hallsville, MO
May 22, 6:05 PM CDT	HAIL 0.88	2 Ne Hallsville, MO
May 22, 6:05 PM CDT	HAIL 1	8 N Columbia, MO
May 22, 6:06 PM CDT	HAIL 0.7	Hallsville, MO
May 22, 6:15 PM CDT	HAIL 0.25	Columbia, MO
May 22, 6:40 PM CDT	TSTM WND DMG	9 Nw Mexico, MO	BARN BLOWN OVER ONTO HWY E NEAR THE INTERSECTION OF HWY T...1 MILE WEST OF SKINNER
May 22, 6:40 PM CDT	TSTM WND DMG	Centralia, MO	6 INCH TREE LIMBS DOWN IN TOWN...TIME ESTIMATED FROM RADAR

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 22, 12:51 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.0 hours before the alert went out and 288 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: 2645 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 678 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 424 m²/s²
0-3 km storm-relative helicity: 422 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 16.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

669 
WUUS53 KLSX 222257
SVRLSX
MOC007-019-027-139-222345-
/O.NEW.KLSX.SV.W.0183.110522T2257Z-110522T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
557 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AUDRAIN COUNTY IN CENTRAL MISSOURI...
  BOONE COUNTY IN CENTRAL MISSOURI...
  NORTHWESTERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
  NORTHERN MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 645 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  MURRY...OR 7 MILES NORTHEAST OF COLUMBIA...AND MOVING NORTHEAST AT
  40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CENTRALIA...MEXICO...HALLSVILLE...STURGEON...MURRY...AUXVASSE...
  MARTINSBURG...HATTON...THOMPSON...VANDIVER...BENTON CITY AND RUSH
  HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3919 9245 3925 9239 3925 9232 3932 9232
      3935 9230 3934 9173 3911 9153 3887 9244
      3899 9257
TIME...MOT...LOC 2257Z 247DEG 33KT 3905 9225
WIND...HAIL 60MPH 1.00IN

$$

CARNEY

1 follow-up statement

925 
WWUS53 KLSX 222321
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
621 PM CDT SUN MAY 22 2011

MOC007-019-027-139-222345-
/O.CON.KLSX.SV.W.0183.000000T0000Z-110522T2345Z/
BOONE MO-CALLAWAY MO-MONTGOMERY MO-AUDRAIN MO-
621 PM CDT SUN MAY 22 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR AUDRAIN...
NORTHERN MONTGOMERY...NORTHWESTERN CALLAWAY AND BOONE COUNTIES UNTIL
645 PM CDT...

AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 5
MILES EAST OF MURRY...OR 11 MILES SOUTH OF CENTRALIA...MOVING EAST AT
40 MPH.

ANOTHER SEVERE THUNDERSTORM LOCATED NORTH OF HARRISBURG IS MOVING 
EAST AT 40 MPH.  THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZED 
HAIL AND DAMAGING WINDS OF 60 MPH.

A THIRD SEVERE THUNDERSTORM WAS LOCATED JUST WEST OF COLUMBIA AND 
MOVING NORTHEAST AT 50 MPH.  THIS STORM IS CAPABLE OF PRODUCING 
WINDS OF 60 MPH AND QUARTER SIZED HAIL.  

LOCATIONS IMPACTED INCLUDE...
  MEXICO...AUXVASSE...MARTINSBURG...LADDONIA...THOMPSON...VANDIVER...
  BENTON CITY...COLUMBIA...HINTON...BROWNS STATION...HALLSVILLE...
  AND RUSH HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3919 9245 3925 9239 3925 9232 3932 9232
      3935 9230 3934 9173 3911 9153 3887 9244
      3899 9257
TIME...MOT...LOC 2318Z 257DEG 36KT 3907 9200
WIND...HAIL 70MPH 1.50IN

$$

CARNEY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 9:26 PM CDT	River Flood Warning	LSX	Saint Charles	55 days
May 21, 10:55 PM CDT	River Flood Warning	LSX	Saint Charles, Saint Louis	3 days
May 22, 3:15 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Montgomery, Osage, Warren	45 min
May 22, 3:59 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Warren	46 min
May 22, 4:15 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Gasconade, Montgomery, Osage	45 min
May 22, 4:32 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Warren	58 min
May 22, 4:35 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Warren	55 min
May 22, 4:45 PM CDT	Severe Thunderstorm Warning	LSX	Warren	45 min
May 22, 5:02 PM CDT	Tornado Warning	LSX	Franklin, Warren	45 min
May 22, 5:15 PM CDT	Severe Thunderstorm Warning	LSX	Boone	45 min
May 22, 5:20 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Moniteau, Osage	40 min
May 22, 5:21 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery	54 min
May 22, 5:27 PM CDT	Tornado Warning	LSX	Callaway, Montgomery	48 min
May 22, 5:37 PM CDT	Tornado Warning	LSX	Saint Charles	38 min
May 22, 5:54 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Gasconade, Montgomery, Osage	51 min
May 22, 6:08 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Gasconade, Montgomery, Osage, Warren	36 min
May 22, 6:12 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike	48 min
May 22, 6:12 PM CDT	Tornado Warning	LSX	Audrain, Callaway, Montgomery, Pike, Ralls	33 min
May 22, 6:23 PM CDT	Tornado Warning	LSX	Callaway, Montgomery	12 min
May 22, 6:28 PM CDT	Tornado Warning	LSX	Franklin, Gasconade, Montgomery, Osage, Warren	47 min
May 22, 6:47 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Callaway, Montgomery, Pike	58 min
May 22, 6:54 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Pike	39 min
May 22, 6:58 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Cole, Franklin, Gasconade, Montgomery, Osage and 1 more	47 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2011 Every severe thunderstorm warning in 2011

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.