Alert archive / Missouri / Tornado Warnings in 2023

Tornado Warning 6, NWS St. Louis, MO

March 31, 2023Crawford County, Franklin County, Gasconade County, Missouri

NWS St. Louis, MO issued this tornado warning at Mar 31, 2023, 4:55 PM CDT for Crawford County, Franklin County, Gasconade County, Missouri. It was in force for 26 min. 5 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: Mar 31, 2023, 4:55 PM CDT (21:55 UTC)
Expired: Mar 31, 2023, 5:21 PM CDT
In force: 26 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Crawford County, MO, Franklin County, MO, Gasconade County, MO

The radar

The St Louis radar (KLSX), 88 km from the middle of the area, began a volume at 21:57 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
Mar 31, 5:13 PM CDT	HAIL 0.75	1 Ne Saint Cloud, MO	TIME ESTIMATED FROM RADAR. REPORT FROM MPING: DIME (0.75 IN.).
Mar 31, 5:14 PM CDT	HAIL 0.75	Sullivan, MO
Mar 31, 5:15 PM CDT	HAIL 1.25	Sullivan, MO	SPOTTER CALLED BACK WITH AN UPDATE OUT OF SULLIVAN. LARGEST HAIL THE SPOTTER OBSERVED WAS SLIGHTLY LARGER THAN A QUARTER. TIME ESTIMATED BY RADAR.
Mar 31, 5:16 PM CDT	HAIL 0.5	Sullivan, MO	REPORT FROM MPING: HALF-INCH (0.50 IN.).
Mar 31, 5:16 PM CDT	HAIL 1.75	Sullivan, MO	ALSO REPORTED ROTATING WALL CLOUD.

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
Mar 31, 11:46 AM CDT	Tornado Watch PDS	SPC	8 hr
Mar 31, 12:28 PM CDT	Tornado Watch PDS	SPC	11 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.9 hours before the alert went out and 252 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: 315 J/kg
Mixed-layer CIN: -257 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 696 m²/s²
0-3 km storm-relative helicity: 722 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

143 
WFUS53 KLSX 312155
TORLSX
MOC055-071-073-312245-
/O.NEW.KLSX.TO.W.0006.230331T2155Z-230331T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
455 PM CDT Fri Mar 31 2023

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northern Crawford County in east central Missouri...
  Southwestern Franklin County in east central Missouri...
  Southeastern Gasconade County in east central Missouri...

* Until 545 PM CDT.
    
* At 455 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near St. James, moving northeast at 45 mph.

  HAZARD...Tornado and golf ball size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Cuba around 505 PM CDT.
  Leasburg around 515 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Bourbon, Oak Grove and Sullivan.

This includes Interstate 44 in Missouri between exits 203 and 228.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3815 9153 3815 9158 3837 9124 3818 9110
      3795 9153
TIME...MOT...LOC 2155Z 230DEG 37KT 3804 9158 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

Glass

3 follow-up statements

168 
WWUS53 KLSX 312203
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
503 PM CDT Fri Mar 31 2023

MOC055-071-073-312245-
/O.CON.KLSX.TO.W.0006.000000T0000Z-230331T2245Z/
Crawford MO-Franklin MO-Gasconade MO-
503 PM CDT Fri Mar 31 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTHERN
CRAWFORD...SOUTHWESTERN FRANKLIN AND SOUTHEASTERN GASCONADE
COUNTIES...
    
At 503 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Cuba, moving northeast at 60 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Bourbon around 515 PM CDT.

Other locations in the path of this tornadic thunderstorm include Oak
Grove and Sullivan.

This includes Interstate 44 in Missouri between exits 208 and 228.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3815 9153 3824 9144 3832 9123 3818 9110
      3803 9147
TIME...MOT...LOC 2203Z 243DEG 52KT 3809 9140 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

Glass

348 
WWUS53 KLSX 312212
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
512 PM CDT Fri Mar 31 2023

MOC073-312222-
/O.CAN.KLSX.TO.W.0006.000000T0000Z-230331T2245Z/
Gasconade MO-
512 PM CDT Fri Mar 31 2023

...THE TORNADO WARNING FOR SOUTHEASTERN GASCONADE COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CDT for east central
Missouri. A Tornado Watch also remains in effect until 800 PM CDT for
east central Missouri.

LAT...LON 3814 9141 3821 9138 3821 9137 3822 9137
      3830 9121 3818 9110 3808 9134
TIME...MOT...LOC 2212Z 230DEG 37KT 3815 9131 

$$

MOC055-071-312245-
/O.CON.KLSX.TO.W.0006.000000T0000Z-230331T2245Z/
Crawford MO-Franklin MO-
512 PM CDT Fri Mar 31 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
NORTHEASTERN CRAWFORD AND SOUTHWESTERN FRANKLIN COUNTIES...
    
At 512 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Bourbon, moving northeast at 45 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Bourbon around 515 PM CDT.

Other locations in the path of this tornadic thunderstorm include Oak
Grove and Sullivan.

This includes Interstate 44 in Missouri between exits 214 and 228.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3814 9141 3821 9138 3821 9137 3822 9137
      3830 9121 3818 9110 3808 9134
TIME...MOT...LOC 2212Z 230DEG 37KT 3815 9131 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

Glass

891 
WWUS53 KLSX 312221
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
521 PM CDT Fri Mar 31 2023

MOC055-071-312231-
/O.CAN.KLSX.TO.W.0006.000000T0000Z-230331T2245Z/
Crawford MO-Franklin MO-
521 PM CDT Fri Mar 31 2023

...THE TORNADO WARNING FOR NORTHEASTERN CRAWFORD AND SOUTHWESTERN
FRANKLIN COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CDT for east central
Missouri. A Tornado Watch also remains in effect until 800 PM CDT for
east central Missouri.

LAT...LON 3814 9141 3821 9138 3821 9137 3822 9137
      3830 9121 3818 9110 3808 9134
TIME...MOT...LOC 2219Z 230DEG 37KT 3821 9122 

$$

Glass

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 12:40 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Ralls	50 min
Mar 31, 1:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Crawford, Iron, Washington	27 min
Mar 31, 1:37 PM CDT	Severe Thunderstorm Warning	LSX	Lewis	8 min
Mar 31, 2:44 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Monroe	46 min
Mar 31, 3:19 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Ralls	41 min
Mar 31, 3:29 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway	46 min
Mar 31, 3:49 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Ralls	41 min
Mar 31, 3:56 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway, Monroe, Pike, Ralls	49 min
Mar 31, 3:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LSX	Audrain, Montgomery, Pike	48 min
Mar 31, 4:02 PM CDT	Tornado Warning	LSX	Marion, Ralls	43 min
Mar 31, 4:27 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	33 min
Mar 31, 4:40 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Montgomery, Pike	50 min
Mar 31, 4:41 PM CDT	Severe Thunderstorm Warning	LSX	Pike	34 min
Mar 31, 5:05 PM CDT	Tornado Warning	LSX	Lincoln, Pike	40 min
Mar 31, 5:09 PM CDT	Severe Thunderstorm Warning	LSX	Pike	51 min
Mar 31, 5:10 PM CDT	Tornado Warning	LSX	Crawford, Washington	19 min
Mar 31, 5:18 PM CDT	Tornado Warning	LSX	Crawford, Franklin, Washington	27 min
Mar 31, 5:31 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Washington	25 min
Mar 31, 5:40 PM CDT	High Wind Warning	LSX	Audrain, Boone, Callaway, Knox, Lewis, Marion and 4 more	3 hr
Mar 31, 6:24 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	23 min

Nearby

Tornado Warnings in Missouri, 2023 Every tornado warning in 2023 Tornadoes in 2023

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.