Alert archive / Missouri / Tornado Warnings in 2010

Tornado Warning 95, NWS St. Louis, MO

December 31, 2010Madison County, Sainte Genevieve County, Saint Francois County, Missouri; Randolph County, Illinois

NWS St. Louis, MO issued this tornado warning at Dec 31, 2010, 2:00 PM CST for Madison County, Sainte Genevieve County, Saint Francois County, Missouri; Randolph County, Illinois. It was in force for 60 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: Dec 31, 2010, 2:00 PM CST (20:00 UTC)
Expired: Dec 31, 2010, 3:00 PM CST
In force: 60 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Randolph County, IL, Madison County, MO, Saint Francois County, MO, Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 122 km from the middle of the area, began a volume at 20:03 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
Dec 31, 7:29 AM CST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.0 hours before the alert went out and 307 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 506 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 450 m²/s²
0-3 km storm-relative helicity: 427 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

051 
WFUS53 KLSX 312000
TORLSX
ILC157-MOC123-186-187-312100-
/O.NEW.KLSX.TO.W.0095.101231T2000Z-101231T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
200 PM CST FRI DEC 31 2010

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL RANDOLPH COUNTY IN SOUTHWEST ILLINOIS...
  MADISON COUNTY IN SOUTHEAST MISSOURI...
  SOUTHERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 300 PM CST

* AT 156 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO. THESE
  DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6 MILES
  WEST OF COFFMAN TO KNOB LICK TO ROSELLE TO 6 MILES SOUTHEAST OF
  ANNAPOLIS...AND MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FREDERICKTOWN...WEINGARTEN...SACO...BUCKHORN...COFFMAN...JUNCTION
  CITY...MARQUAND...WOMAC...ST. MARY...LIBERTYVILLE...CATHERINE
  PLACE...MINE LA MOTTE...RIVER AUX VASES...MINNITH AND KASKASKIA.

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.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3732 9055 3768 9054 3798 9016 3791 8985
      3787 8991 3788 8993 3783 9000 3768 9011
      3765 9015 3731 9016
TIME...MOT...LOC 2000Z 228DEG 40KT 3784 9026 3769 9036
          3760 9042 3735 9057

$$

MILLER

3 follow-up statements

808 
WWUS53 KLSX 312034
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
234 PM CST FRI DEC 31 2010

ILC157-MOC123-186-187-312100-
/O.CON.KLSX.TO.W.0095.000000T0000Z-101231T2100Z/
RANDOLPH IL-MADISON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-
234 PM CST FRI DEC 31 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN STE.
GENEVIEVE...SOUTHERN ST. FRANCOIS...EASTERN MADISON AND SOUTH CENTRAL
RANDOLPH COUNTIES UNTIL 300 PM CST...

AT 230 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO.  THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM EVANSVILLE
TO STE. GENEVIEVE TO 6 MILES NORTHEAST OF COFFMAN TO JUNCTION CITY...
MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  ST. MARY...MINNITH AND KASKASKIA.

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.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3731 9034 3762 9031 3796 9010 3791 8985
      3787 8991 3788 8993 3783 9000 3768 9011
      3765 9015 3731 9016
TIME...MOT...LOC 2034Z 228DEG 40KT 3809 8990 3794 9000
          3785 9006 3760 9022

$$

MILLER

962 
WWUS53 KLSX 312049
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
249 PM CST FRI DEC 31 2010

MOC123-187-312100-
/O.CAN.KLSX.TO.W.0095.000000T0000Z-101231T2100Z/
MADISON MO-ST. FRANCOIS MO-
249 PM CST FRI DEC 31 2010

...THE TORNADO WARNING FOR SOUTHERN ST. FRANCOIS AND EASTERN MADISON
COUNTIES IS CANCELLED...

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

LAT...LON 3768 9012 3775 9022 3771 9025 3772 9025
      3796 9010 3791 8985 3787 8991 3788 8993
      3783 9000 3767 9012
TIME...MOT...LOC 2050Z 223DEG 45KT 3792 8992

$$

ILC157-MOC186-312100-
/O.CON.KLSX.TO.W.0095.000000T0000Z-101231T2100Z/
RANDOLPH IL-STE. GENEVIEVE MO-
249 PM CST FRI DEC 31 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN STE.
GENEVIEVE AND SOUTH CENTRAL RANDOLPH COUNTIES UNTIL 300 PM CST...

AT 247 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR ST. MARY...OR 7 MILES WEST OF CHESTER...MOVING
NORTHEAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF SOUTHERN RANDOLPH COUNTY.

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.

THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3768 9012 3775 9022 3771 9025 3772 9025
      3796 9010 3791 8985 3787 8991 3788 8993
      3783 9000 3767 9012
TIME...MOT...LOC 2050Z 223DEG 45KT 3792 8992

$$

GLASS

609 
WWUS53 KLSX 312058
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
258 PM CST FRI DEC 31 2010

ILC157-MOC186-312109-
/O.EXP.KLSX.TO.W.0095.000000T0000Z-101231T2100Z/
RANDOLPH IL-STE. GENEVIEVE MO-
258 PM CST FRI DEC 31 2010

...THE TORNADO WARNING FOR SOUTHEASTERN STE. GENEVIEVE AND SOUTH
CENTRAL RANDOLPH COUNTIES WILL EXPIRE AT 300 PM CST...

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

LAT...LON 3768 9012 3775 9022 3771 9025 3772 9025
      3796 9010 3791 8985 3787 8991 3788 8993
      3783 9000 3767 9012
TIME...MOT...LOC 2059Z 223DEG 45KT 3800 8982

$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 31, 2:26 AM CST	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Osage	49 min
Dec 31, 3:05 AM CST	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade	40 min
Dec 31, 9:41 AM CST	Severe Thunderstorm Warning	LSX	Callaway	34 min
Dec 31, 10:08 AM CST	Tornado Warning	LSX	Audrain, Callaway, Montgomery, Pike	37 min
Dec 31, 10:11 AM CST	Tornado Warning	LSX	Crawford, Franklin, Gasconade	64 min
Dec 31, 10:13 AM CST	Tornado Warning	LSX	Crawford, Franklin, Washington	62 min
Dec 31, 10:22 AM CST	Tornado Warning	LSX	Pike	38 min
Dec 31, 10:47 AM CST	Tornado Warning	LSX	Montgomery, Pike	13 min
Dec 31, 10:56 AM CST	Tornado Warning	LSX	Crawford, Franklin, Jefferson, Saint Charles, Saint Louis, Warren and 1 more	64 min
Dec 31, 11:00 AM CST	Tornado Warning	LSX	Lincoln, Pike	60 min
Dec 31, 11:15 AM CST	Tornado Warning	LSX	Lincoln, Montgomery, Pike	45 min
Dec 31, 11:22 AM CST	Tornado Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis, Washington, City of Saint Louis	53 min
Dec 31, 11:59 AM CST	Tornado Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	61 min
Dec 31, 12:29 PM CST	Tornado Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	31 min
Dec 31, 12:57 PM CST	Tornado Warning	LSX	Sainte Genevieve	48 min
Dec 31, 1:11 PM CST	Tornado Warning	LSX	Iron, Madison, Reynolds, Sainte Genevieve, Saint Francois	49 min
Dec 31, 1:44 PM CST	Tornado Warning	LSX	Sainte Genevieve	61 min
Dec 31, 9:43 AM CST	Tornado Warning	LSX	Adams, Brown	32 min
Dec 31, 11:54 AM CST	Tornado Warning	LSX	Calhoun, Greene, Pike	51 min
Dec 31, 12:38 PM CST	Tornado Warning	LSX	Bond, Clinton, Fayette, Marion, Montgomery	67 min
Dec 31, 1:40 PM CST	Tornado Warning	LSX	Bond, Clinton, Fayette, Marion, Washington	50 min
Dec 31, 2:22 PM CST	Tornado Warning	LSX	Bond, Clinton, Fayette, Marion, Washington	53 min

Nearby

Tornado Warnings in Missouri, 2010 Tornado Warnings in Illinois, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.