Alert archive / Missouri / Tornado Warnings in 2011

Tornado Warning 40, NWS St. Louis, MO

April 22, 2011Cole County, Moniteau County, Missouri

NWS St. Louis, MO issued this tornado warning at Apr 22, 2011, 4:40 PM CDT for Cole County, Moniteau County, Missouri. It was in force for 50 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
Apr 22, 2011, 4:40 PM CDT (21:40 UTC)
Expired
Apr 22, 2011, 5:30 PM CDT
In force
50 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

Counties Cole County, MO, Moniteau County, MO

The radar

The Pleasant Hill radar (KEAX), 147 km from the middle of the area, began a volume at 21:41 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
Apr 22, 5:00 PM CDTHAIL 28 N California, MO
Apr 22, 5:04 PM CDTHAIL 2.58 N California, MO
Apr 22, 5:09 PM CDTFUNNEL CLOUD4 W Centertown, MOSPOTTER LOCATED IN CENTERTOWN OBSERVES A FUNNEL CLOUD JUST TO THE WEST
Apr 22, 5:21 PM CDTHAIL 1.75Marion, MOREPORT RELAYED THROUGH MO TROOP F

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
Apr 22, 3:34 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 227 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 12:00Z on 2011-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 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 12:00Z on 2011-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 516 square meters per square second.19395878Sfc1 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
148 J/kg
Mixed-layer CIN
-391 J/kg
Mixed-layer LCL
454 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
516 m²/s²
0-3 km storm-relative helicity
554 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

419 
WFUS53 KLSX 222140
TORLSX
MOC051-135-222230-
/O.NEW.KLSX.TO.W.0040.110422T2140Z-110422T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
440 PM CDT FRI APR 22 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN COLE COUNTY IN CENTRAL MISSOURI...
  MONITEAU COUNTY IN CENTRAL MISSOURI...

* UNTIL 530 PM CDT

* AT 438 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR TIPTON...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  TIPTON...CALIFORNIA...CLARKSBURG...MCGIRK...JAMESTOWN...
  CENTERTOWN...ST. MARTINS...LATHAM...KLIEVER...SANDY HOOK...MARION
  AND ELSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA.

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3869 9284 3869 9263 3883 9255 3886 9247
      3876 9240 3875 9241 3874 9239 3867 9236
      3867 9234 3859 9229 3853 9276 3860 9285
      3867 9285
TIME...MOT...LOC 2140Z 260DEG 36KT 3864 9282

$$

GLASS
4 follow-up statements
399 
WWUS53 KLSX 222146
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
446 PM CDT FRI APR 22 2011

MOC051-135-222230-
/O.CON.KLSX.TO.W.0040.000000T0000Z-110422T2230Z/
COLE MO-MONITEAU MO-
446 PM CDT FRI APR 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR MONITEAU AND NORTHWESTERN
COLE COUNTIES UNTIL 530 PM CDT...

AT 444 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR TIPTON...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
  CALIFORNIA...CLARKSBURG...MCGIRK...JAMESTOWN...CENTERTOWN...ST.
  MARTINS...LATHAM...KLIEVER...SANDY HOOK AND ELSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3869 9284 3869 9263 3883 9255 3886 9247
      3876 9240 3875 9241 3874 9239 3867 9236
      3867 9234 3859 9229 3853 9276 3860 9285
      3867 9285
TIME...MOT...LOC 2147Z 264DEG 37KT 3864 9274

$$

GLASS
745 
WWUS53 KLSX 222200
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
500 PM CDT FRI APR 22 2011

MOC051-135-222230-
/O.CON.KLSX.TO.W.0040.000000T0000Z-110422T2230Z/
COLE MO-MONITEAU MO-
500 PM CDT FRI APR 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MONITEAU AND
NORTHWESTERN COLE COUNTIES UNTIL 530 PM CDT...

AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR CALIFORNIA...MOVING EAST AT 40 MPH.

IN ADDITION...HAIL UP TO THE SIZE OF GOLF BALLS IS LIKELY WITH THIS 
STORM.

LOCATIONS IMPACTED INCLUDE...
  CALIFORNIA...MCGIRK...JAMESTOWN...CENTERTOWN...ST. MARTINS...
  KLIEVER...SANDY HOOK AND ELSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3869 9269 3869 9263 3883 9255 3886 9247
      3877 9240 3875 9241 3874 9239 3867 9236
      3867 9234 3859 9229 3854 9267
TIME...MOT...LOC 2200Z 269DEG 35KT 3865 9258

$$

GLASS
947 
WWUS53 KLSX 222210
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
510 PM CDT FRI APR 22 2011

MOC051-135-222230-
/O.CON.KLSX.TO.W.0040.000000T0000Z-110422T2230Z/
COLE MO-MONITEAU MO-
510 PM CDT FRI APR 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MONITEAU AND
NORTHWESTERN COLE COUNTIES UNTIL 530 PM CDT...

AT 507 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD.  A
TORNADO MAY DEVELOP AT ANY TIME. THIS DANGEROUS STORM WAS LOCATED
NEAR MCGIRK...OR NEAR CALIFORNIA...MOVING EAST AT 45 MPH.

IN ADDITION...TENNIS BALL SIZE HAIL HAS BEEN REPORTED WITH THIS 
STORM.

LOCATIONS IMPACTED INCLUDE...
  CENTERTOWN...ST. MARTINS...SANDY HOOK AND ELSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3883 9255 3886 9247 3877 9240 3875 9241
      3874 9239 3867 9236 3867 9234 3859 9229
      3856 9255 3869 9262
TIME...MOT...LOC 2209Z 261DEG 40KT 3868 9247

$$

GLASS
083 
WWUS53 KLSX 222226
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
526 PM CDT FRI APR 22 2011

MOC051-135-222236-
/O.EXP.KLSX.TO.W.0040.000000T0000Z-110422T2230Z/
COLE MO-MONITEAU MO-
526 PM CDT FRI APR 22 2011

...THE TORNADO WARNING FOR NORTHEASTERN MONITEAU AND NORTHWESTERN
COLE COUNTIES WILL EXPIRE AT 530 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 1000 PM.

LAT...LON 3883 9255 3886 9247 3877 9240 3875 9241
      3874 9239 3867 9236 3867 9234 3859 9229
      3856 9255 3869 9262
TIME...MOT...LOC 2226Z 261DEG 40KT 3871 9223

$$

GLASS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 9:24 PM CDTRiver Flood WarningLSXGasconade, Montgomery11 days
Apr 21, 10:14 PM CDTRiver Flood WarningLSXReynolds9 days
Apr 22, 7:12 AM CDTAreal Flood AdvisoryLSXSainte Genevieve, Saint Francois3 hr
Apr 22, 7:17 AM CDTAreal Flood AdvisoryLSXJefferson3 hr
Apr 22, 7:28 AM CDTFlash Flood WarningLSXJefferson, Sainte Genevieve, Saint Francois, Washington6 hr
Apr 22, 8:47 AM CDTSevere Thunderstorm WarningLSXBoone, Callaway, Cole, Moniteau, Osage43 min
Apr 22, 9:16 AM CDTSevere Thunderstorm WarningLSXLincoln, Pike44 min
Apr 22, 9:28 AM CDTSevere Thunderstorm WarningLSXCallaway, Lincoln, Montgomery, Pike, Warren47 min
Apr 22, 9:32 AM CDTSevere Thunderstorm WarningLSXCallaway, Cole, Franklin, Gasconade, Lincoln, Montgomery and 2 more43 min
Apr 22, 9:36 AM CDTFlash Flood WarningLSXMarion, Monroe, Ralls, Shelby3 hr
Apr 22, 9:59 AM CDTSevere Thunderstorm WarningLSXLincoln46 min
Apr 22, 10:17 AM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Jefferson, Lincoln, Montgomery, Saint Charles and 2 more43 min
Apr 22, 10:56 AM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis49 min
Apr 22, 11:00 AM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Jefferson, Saint Charles, Saint Louis, Warren and 2 more45 min
Apr 22, 11:44 AM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis, City of Saint Louis46 min
Apr 22, 12:34 PM CDTRiver Flood WarningLSXSaint Charles26 hr
Apr 22, 2:39 PM CDTRiver Flood WarningLSXMarion37 hr
Apr 22, 4:32 PM CDTSevere Thunderstorm WarningLSXCole, Moniteau43 min
Apr 22, 5:10 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade39 min
Apr 22, 5:12 PM CDTTornado WarningLSXBoone, Callaway, Cole48 min
Apr 22, 5:49 PM CDTTornado WarningLSXCallaway, Gasconade, Montgomery, Osage41 min
Apr 22, 6:05 PM CDTSevere Thunderstorm WarningLSXCole, Osage40 min
Apr 22, 6:22 PM CDTTornado WarningLSXFranklin, Gasconade, Lincoln, Montgomery, Warren38 min
Apr 22, 6:36 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Osage39 min
Apr 22, 6:55 PM CDTTornado WarningLSXLincoln, Saint Charles, Saint Louis, Warren50 min
Apr 22, 6:58 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis47 min

Nearby

Tornado Warnings in Missouri, 2011Every tornado warning in 2011Tornadoes 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.