Alert archive / Missouri / Tornado Warnings in 2023
Tornado Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Feb 22, 2023, 1:03 PM CST for Saint Charles County, Missouri. It was in force for 27 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
- Feb 22, 2023, 1:03 PM CST (19:03 UTC)
- Expired
- Feb 22, 2023, 1:30 PM CST
- In force
- 27 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Saint Charles County, MO
The radar
The St Louis radar (KLSX), 23 km from the middle of the area, began a volume at 19:02 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 |
|---|---|---|---|
| Feb 22, 12:20 PM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.1 hours before the alert went out and 230 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 774 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 653 m²/s²
- 0-3 km storm-relative helicity
- 724 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
756
WFUS53 KLSX 221903
TORLSX
MOC183-221930-
/O.NEW.KLSX.TO.W.0003.230222T1903Z-230222T1930Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
103 PM CST Wed Feb 22 2023
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern St. Charles County in east central Missouri...
* Until 130 PM CST.
* At 103 PM CST, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located near
Wentzville, moving northeast at 40 mph.
HAZARD...Tornado.
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.
* These dangerous storms will be near...
St. Paul around 110 PM CST.
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.
This cluster 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 a building.
&&
LAT...LON 3886 9060 3882 9085 3888 9089 3887 9082
3888 9081 3891 9080 3893 9074 3893 9072
3892 9074 3891 9072 3892 9071 3892 9069
3893 9070 3893 9067
TIME...MOT...LOC 1903Z 239DEG 35KT 3886 9086
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
MRB2 follow-up statements
297
WWUS53 KLSX 221912
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
112 PM CST Wed Feb 22 2023
MOC183-221930-
/O.CON.KLSX.TO.W.0003.000000T0000Z-230222T1930Z/
St. Charles MO-
112 PM CST Wed Feb 22 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CST FOR
NORTHWESTERN ST. CHARLES COUNTY...
At 112 PM CST, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
Chain of Rocks, moving northeast at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
northwestern St. Charles County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3883 9077 3888 9081 3891 9080 3893 9074
3893 9072 3892 9074 3891 9072 3892 9071
3892 9069 3893 9070 3893 9067 3886 9060
TIME...MOT...LOC 1912Z 242DEG 39KT 3892 9072
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
MRB857
WWUS53 KLSX 221921
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
121 PM CST Wed Feb 22 2023
MOC183-221930-
/O.EXP.KLSX.TO.W.0003.000000T0000Z-230222T1930Z/
St. Charles MO-
121 PM CST Wed Feb 22 2023
...THE TORNADO WARNING FOR NORTHWESTERN ST. CHARLES COUNTY WILL
EXPIRE AT 130 PM CST...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, damaging winds remain likely and a Severe
Thunderstorm Warning remains in effect for the area.
A Tornado Watch remains in effect until 600 PM CST for east central
Missouri.
LAT...LON 3883 9077 3888 9081 3891 9080 3893 9074
3893 9072 3892 9074 3891 9072 3892 9071
3892 9069 3893 9070 3893 9067 3886 9060
TIME...MOT...LOC 1920Z 239DEG 35KT 3895 9065
$$
MRBThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 22, 7:18 AM CST | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 32 min |
| Feb 22, 7:41 AM CST | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 34 min |
| Feb 22, 11:58 AM CST | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Franklin, Gasconade, Lincoln, Montgomery and 3 more | 62 min |
| Feb 22, 12:08 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Washington | 67 min |
| Feb 22, 12:24 PM CST | Tornado Warning | LSX | Franklin, Saint Charles, Warren | 51 min |
| Feb 22, 12:34 PM CST | Tornado Warning | LSX | Lincoln, Montgomery, Warren | 56 min |
| Feb 22, 12:41 PM CST | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 64 min |
| Feb 22, 1:53 PM CST | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois | 52 min |
| Feb 22, 1:57 PM CST | Severe Thunderstorm Warning | LSX | Saint Charles | 63 min |
Nearby
Tornado Warnings in Missouri, 2023Every tornado warning in 2023Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.