Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 171, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 24, 2021, 6:37 PM CDT for Callaway County, Missouri. It was in force for 38 min. 2 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
- Oct 24, 2021, 6:37 PM CDT (23:37 UTC)
- Expired
- Oct 24, 2021, 7:15 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Callaway County, MO
The radar
The St Louis radar (KLSX), 101 km from the middle of the area, began a volume at 23:40 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 |
|---|---|---|---|
| Oct 24, 6:38 PM CDT | TSTM WND DMG | 2 Ese Guthrie, MO | TREES DOWN OVER THE ROADWAY. |
| Oct 24, 6:48 PM CDT | TSTM WND DMG | 4 Ene Fulton, MO | TREES DOWN OVER HIGHWAY E AND 283. |
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 |
|---|---|---|---|
| Oct 24, 2:06 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 279 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
- 860 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
614 WUUS53 KLSX 242337 SVRLSX MOC027-250015- /O.NEW.KLSX.SV.W.0171.211024T2337Z-211025T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service St Louis MO 637 PM CDT Sun Oct 24 2021 The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Central Callaway County in central Missouri... * Until 715 PM CDT. * At 637 PM CDT, a severe thunderstorm was located near New Bloomfield, moving northeast at 40 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Fulton around 645 PM CDT. Other locations in the path of this severe thunderstorm include Williamsburg and Shamrock. This includes Interstate 70 in Missouri between exits 155 and 161. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1000 PM CDT for central and east central Missouri. For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 1000 PM CDT for central and east central Missouri. && LAT...LON 3906 9163 3875 9165 3868 9210 3881 9214 TIME...MOT...LOC 2337Z 242DEG 34KT 3876 9207 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.88 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CVKING
1 follow-up statement
554
WWUS53 KLSX 242348
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
648 PM CDT Sun Oct 24 2021
MOC027-250015-
/O.CON.KLSX.SV.W.0171.000000T0000Z-211025T0015Z/
Callaway MO-
648 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR EAST CENTRAL CALLAWAY COUNTY...
At 648 PM CDT, a severe thunderstorm was located near Fulton, moving
northeast at 55 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Williamsburg.
This includes Interstate 70 in Missouri near exit 161.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for central and
east central Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3887 9164 3879 9165 3874 9196 3885 9198
3900 9163
TIME...MOT...LOC 2348Z 245DEG 47KT 3882 9190
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 4:17 AM CDT | Areal Flood Advisory | LSX | Knox, Lewis, Marion, Shelby | 6 hr |
| Oct 24, 4:58 AM CDT | Flash Flood Warning | LSX | Lewis, Marion | 2 hr |
| Oct 24, 9:49 AM CDT | River Flood Warning | LSX | Marion | 23 hr |
| Oct 24, 4:49 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 41 min |
| Oct 24, 5:03 PM CDT | River Flood Warning | LSX | Marion | 38 hr |
| Oct 24, 5:17 PM CDT | Tornado Warning | LSX | Pike | 43 min |
| Oct 24, 5:27 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 48 min |
| Oct 24, 6:36 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Montgomery, Ralls | 39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.