Alert archive / Missouri / Tornado Warnings in 2008

Tornado Warning 92, NWS St. Louis, MO

December 27, 2008Audrain County, Boone County, Monroe County, Missouri

NWS St. Louis, MO issued this tornado warning at Dec 27, 2008, 9:26 AM CST for Audrain County, Boone County, Monroe County, Missouri. It was in force for 37 min. 1 report 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
Dec 27, 2008, 9:26 AM CST (15:26 UTC)
Expired
Dec 27, 2008, 10:03 AM CST
In force
37 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

Counties Audrain County, MO, Boone County, MO, Monroe County, MO

The radar

The St Louis radar (KLSX), 135 km from the middle of the area, began a volume at 15:27 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
Dec 27, 9:40 AM CSTTORNADOThompson, MOPUBLIC REPORTED A BRIEF TORNADO IN A FIELD NEAR THOMPSON. NO DAMAGE REPORTED.

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
Dec 27, 4:30 AM CSTTornado WatchSPC8 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 3.4 hours before the alert went out and 284 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, Davenport, at 12:00Z on 2008-12-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2008-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 square meters per square second.1939587897117136Sfc1 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
6 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
851 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
215 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 271526
TORLSX
MOC007-019-137-271615-
/O.NEW.KLSX.TO.W.0092.081227T1526Z-081227T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
926 AM CST SAT DEC 27 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN AUDRAIN COUNTY IN CENTRAL MISSOURI
  NORTHEASTERN BOONE COUNTY IN CENTRAL MISSOURI
  SOUTHEASTERN MONROE COUNTY IN NORTHEAST MISSOURI

* UNTIL 1015 AM CST

* AT 923 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES NORTH OF
  HALLSVILLE...OR ABOUT 6 MILES SOUTHWEST OF CENTRALIA...MOVING
  NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CENTRALIA...
  PARIS...
  SANTA FE...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 3950 9204 3950 9172 3934 9172 3905 9220
      3916 9237
TIME...MOT...LOC 1526Z 218DEG 50KT 3919 9219

$$

BYRD
2 follow-up statements
000 
WWUS53 KLSX 271540
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
940 AM CST SAT DEC 27 2008

MOC019-271549-
/O.CAN.KLSX.TO.W.0092.000000T0000Z-081227T1615Z/
BOONE MO-
939 AM CST SAT DEC 27 2008

...THE TORNADO WARNING FOR NORTHEASTERN BOONE COUNTY IS CANCELLED...

THE SEVERE THUNDERSTORM HAS MOVED OUT OF BOONE COUNTY...SO THE 
WARNING HAS BEEN CANCELLED. A TORNADO WATCH REMAINS IN EFFECT UNTIL 
NOON.

LAT...LON 3932 9222 3950 9204 3950 9172 3936 9172
      3934 9173 3914 9204 3921 9211 3924 9211
      3924 9214
TIME...MOT...LOC 1539Z 218DEG 50KT 3934 9198

$$

MOC007-137-271615-
/O.CON.KLSX.TO.W.0092.000000T0000Z-081227T1615Z/
AUDRAIN MO-MONROE MO-
939 AM CST SAT DEC 27 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CST FOR
SOUTHEASTERN MONROE AND NORTHERN AUDRAIN COUNTIES...

AT 936 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 8 MILES NORTH OF
THOMPSON...OR 9 MILES NORTHEAST OF CENTRALIA...AND WAS MOVING
NORTHEAST AT 55 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...SANTA FE...PARIS AND
FLORIDA.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
DESTRUCTIVE STRAIGHT LINE WINDS TO 65 MPH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3932 9222 3950 9204 3950 9172 3936 9172
      3934 9173 3914 9204 3921 9211 3924 9211
      3924 9214
TIME...MOT...LOC 1539Z 218DEG 50KT 3934 9198

$$

BYRD
000 
WWUS53 KLSX 271603
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1003 AM CST SAT DEC 27 2008

MOC007-137-271613-
/O.CAN.KLSX.TO.W.0092.000000T0000Z-081227T1615Z/
AUDRAIN MO-MONROE MO-
1003 AM CST SAT DEC 27 2008

...THE TORNADO WARNING FOR SOUTHEASTERN MONROE AND WESTERN AUDRAIN
COUNTIES IS CANCELLED...

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

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A TORNADO WATCH 
REMAINS IN EFFECT UNTIL NOON.

LAT...LON 3932 9222 3950 9204 3950 9172 3936 9172
      3934 9173 3914 9204 3921 9211 3924 9211
      3924 9214
TIME...MOT...LOC 1603Z 218DEG 50KT 3960 9171

$$

BYRD

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 26, 11:04 PM CSTRiver Flood WarningLSXLewis66 hr
Dec 27, 12:44 AM CSTTornado WarningLSXLewis, Marion, Monroe, Shelby46 min
Dec 27, 1:23 AM CSTTornado WarningLSXLewis, Marion47 min
Dec 27, 1:31 AM CSTTornado WarningLSXMarion, Monroe, Ralls, Shelby44 min
Dec 27, 2:13 AM CSTTornado WarningLSXMarion, Monroe, Ralls47 min
Dec 27, 2:37 AM CSTFlash Flood WarningLSXLewis, Marion, Monroe, Shelby6 hr
Dec 27, 4:05 AM CSTWind AdvisoryLSXIron, Jefferson, Madison, Reynolds, Saint Charles, Sainte Genevieve and 4 more12 hr
Dec 27, 7:46 AM CSTSevere Thunderstorm WarningLSXIron, Reynolds, Sainte Genevieve, Saint Francois, Washington16 min
Dec 27, 8:46 AM CSTSevere Thunderstorm WarningLSXShelby29 min
Dec 27, 9:05 AM CSTTornado WarningLSXMarion, Shelby25 min
Dec 27, 9:14 AM CSTTornado WarningLSXKnox, Lewis, Marion, Shelby31 min
Dec 27, 9:49 AM CSTTornado WarningLSXMonroe, Ralls41 min
Dec 27, 10:01 AM CSTSevere Thunderstorm WarningLSXAudrain, Montgomery, Pike, Ralls44 min
Dec 27, 10:10 AM CSTTornado WarningLSXAudrain, Pike, Ralls35 min
Dec 27, 10:27 AM CSTTornado WarningLSXCallaway, Lincoln, Montgomery, Warren33 min
Dec 27, 10:32 AM CSTSevere Thunderstorm WarningLSXPike43 min
Dec 27, 10:46 AM CSTTornado WarningLSXPike44 min
Dec 27, 10:58 AM CSTTornado WarningLSXLincoln47 min
Dec 27, 11:02 AM CSTSevere Thunderstorm WarningLSXLincoln, Saint Charles, Warren43 min
Dec 27, 12:18 PM CSTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Osage, Washington42 min
Dec 27, 12:41 PM CSTFlash Flood WarningLSXFranklin, Gasconade, Jefferson, Lincoln, Montgomery, Saint Charles and 3 more6 hr
Dec 27, 12:53 PM CSTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Charles, Saint Louis, Warren, Washington37 min
Dec 27, 1:06 PM CSTSevere Thunderstorm WarningLSXFranklin, Jefferson, Lincoln, Saint Charles, Saint Louis, City of Saint Louis54 min
Dec 27, 1:37 PM CSTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis53 min
Dec 27, 1:53 PM CSTRiver Flood WarningLSXMarion48 hr
Dec 27, 4:14 PM CSTAreal Flood AdvisoryLSXIron, Jefferson, Madison, Reynolds, Sainte Genevieve, Saint Francois and 1 more4 hr

Nearby

Tornado Warnings in Missouri, 2008Every tornado warning in 2008Tornadoes in 2008

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.