Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 156, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 26, 2021, 3:46 PM CDT for Lincoln County, Warren County, Missouri. It was in force for 44 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
- Aug 26, 2021, 3:46 PM CDT (20:46 UTC)
- Expired
- Aug 26, 2021, 4:30 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lincoln County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 36 km from the middle of the area, began a volume at 20:48 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 253 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
- 1067 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 954 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.6
The text
As transmitted.
353
WUUS53 KLSX 262046
SVRLSX
MOC113-219-262130-
/O.NEW.KLSX.SV.W.0156.210826T2046Z-210826T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
346 PM CDT Thu Aug 26 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southwestern Lincoln County in east central Missouri...
Northeastern Warren County in east central Missouri...
* Until 430 PM CDT.
* At 346 PM CDT, a severe thunderstorm was located over Truesdale,
moving northeast at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Wright City.
This includes Interstate 70 in Missouri between exits 193 and 200.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3902 9110 3896 9095 3889 9095 3889 9096
3878 9096 3864 9105 3878 9125
TIME...MOT...LOC 2046Z 225DEG 7KT 3880 9109
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
193 follow-up statements
051
WWUS53 KLSX 262102
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
402 PM CDT Thu Aug 26 2021
MOC113-219-262130-
/O.CON.KLSX.SV.W.0156.000000T0000Z-210826T2130Z/
Lincoln MO-Warren MO-
402 PM CDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHWESTERN LINCOLN AND NORTHEASTERN WARREN COUNTIES...
At 401 PM CDT, a severe thunderstorm was located near Hawk Point,
moving north at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Troy, Warrenton, Wright City, Truesdale, Hawk Point, Innsbrook and
Foristell.
This includes Interstate 70 in Missouri between exits 193 and 200.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3902 9110 3896 9095 3889 9095 3889 9096
3878 9096 3864 9105 3878 9125
TIME...MOT...LOC 2101Z 165DEG 7KT 3897 9106
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
19741
WWUS53 KLSX 262118
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
418 PM CDT Thu Aug 26 2021
MOC113-219-262130-
/O.CON.KLSX.SV.W.0156.000000T0000Z-210826T2130Z/
Lincoln MO-Warren MO-
418 PM CDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHWESTERN LINCOLN AND NORTHEASTERN WARREN COUNTIES...
At 418 PM CDT, a severe thunderstorm was located near Hawk Point, and
is nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Troy, Warrenton, Wright City, Hawk Point and Foristell.
This includes Interstate 70 in Missouri between exits 199 and 200.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3902 9110 3896 9095 3889 9095 3889 9096
3878 9096 3877 9097 3888 9119
TIME...MOT...LOC 2118Z 105DEG 1KT 3896 9108
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
19715
WWUS53 KLSX 262127
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
427 PM CDT Thu Aug 26 2021
MOC113-219-262137-
/O.EXP.KLSX.SV.W.0156.000000T0000Z-210826T2130Z/
Lincoln MO-Warren MO-
427 PM CDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LINCOLN AND
NORTHEASTERN WARREN COUNTIES WILL EXPIRE AT 430 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
LAT...LON 3902 9110 3896 9095 3889 9095 3889 9096
3878 9096 3877 9097 3888 9119
TIME...MOT...LOC 2127Z 225DEG 7KT 3897 9107
$$
19The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 2:25 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 50 min |
| Aug 26, 3:10 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 50 min |
| Aug 26, 5:28 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 25 min |
| Aug 26, 5:34 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Monroe | 41 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2021Every severe thunderstorm warning in 2021
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.