Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 184, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Dec 10, 2021, 6:18 PM CST for Cole County, Osage County, Missouri. It was in force for 42 min. 11 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
- Dec 10, 2021, 6:18 PM CST (00:18 UTC)
- Expired
- Dec 10, 2021, 7:00 PM CST
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cole County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 129 km from the middle of the area, began a volume at 00:20 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 |
|---|---|---|---|
| Dec 10, 6:23 PM CST | TSTM WND DMG | Saint Thomas, MO | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM SAINT THOMAS. DELAYED REPORT, TIME ESTIMATED FROM RADAR. METAL PANEL ROOF LIFTED OFF A MOSTLY METAL SIDED BUILDING. |
| Dec 10, 6:26 PM CST | TSTM WND DMG | 1 W Westphalia, MO | OSAGE COUNTY SHERIFFS OFFICE REPORTED A ROOF OFF A BUILDING AT COUNTY ROAD 503 AND HIGHWAY 133. TIME ESTIMATED FROM RADAR. |
| Dec 10, 6:27 PM CST | TSTM WND DMG | 1 Se Osage Bend, MO | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 SE OSAGE BEND. CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 SE OSAGE BEND. DELAYED REPORT, TIME ESTIMATED FROM RADAR. LIMBS GREATER THAN 6 INCHES SNAPPED OFF TREE. |
| Dec 10, 6:27 PM CST | TSTM WND DMG | 1 Se Osage Bend, MO | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 SE OSAGE BEND. DELAYED REPORT, TIME ESTIMATED FROM RADAR. TREE WITH SHALLOW ROOT BALL TIPPED OVER, EXPOSING ROOTS. |
| Dec 10, 6:27 PM CST | TSTM WND DMG | 1 Se Osage Bend, MO | DELAYED REPORT, NUMEROUS TREE LIMBS SIX INCHES AND LARGER SNAPPED. TIMING BASED OFF RADAR. |
| Dec 10, 6:28 PM CST | TSTM WND DMG | 2 W Westphalia, MO | OSAGE COUNTY SHERIFFS OFFICE REPORTED NUMEROUS TREES DOWN ALONG HIGHWAY 133 INTO WESTPHALIA. TIME ESTIMATED FROM RADAR. |
| Dec 10, 6:30 PM CST | TSTM WND DMG | 2 N Westphalia, MO | OSAGE COUNTY SHERIFFS OFFICE REPORTED A ROOF OFF A BUSINESS AT 674 HWY 63. TIME ESTIMATED FROM RADAR. |
| Dec 10, 6:31 PM CST | TSTM WND DMG | 3 N Westphalia, MO | TREE DOWN BLOCKING BOTH LANES OF HIGHWAY 63 APPROX 1 MILE SOUTH OF HIGHWAY 50. |
| Dec 10, 6:34 PM CST | TSTM WND DMG | 2 Sse Loose Creek, MO | OSAGE COUNTY SHERIFFS OFFICE REPORTED A TRAMPOLINE WAS BLOWN INTO THE SIDE OF A HOUSE. TIME ESTIMATED FROM RADAR. |
| Dec 10, 6:35 PM CST | TSTM WND DMG | 1 Ese Loose Creek, MO | OSAGE COUNTY SHERIFFS OFFICE REPORTED HOME DAMAGE ALONG LOOSE CREEK HIGHWAY. TIME ESTIMATED FROM RADAR. |
| Dec 10, 6:58 PM CST | TSTM WND DMG | 6 W Bland, MO | STRONG WINDS HAVE BROUGHT DOWN TREE BRANCHES. |
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 |
|---|---|---|---|
| Dec 10, 5:17 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.3 hours before the alert went out and 225 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
- 637 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- 344 m²/s²
- 0-3 km storm-relative helicity
- 300 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.4
The text
As transmitted.
656
WUUS53 KLSX 110018
SVRLSX
MOC051-151-110100-
/O.NEW.KLSX.SV.W.0184.211211T0018Z-211211T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
618 PM CST Fri Dec 10 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southeastern Cole County in central Missouri...
Osage County in central Missouri...
* Until 700 PM CST.
* At 618 PM CST, a severe thunderstorm was located over St. Thomas,
moving northeast at 55 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Wardsville around 625 PM CST.
Taos and Westphalia around 635 PM CST.
Other locations in the path of this severe thunderstorm include Rich
Fountain and Linn.
This also includes Clarks Hill/Norton Historic Site.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CST for central and
east central Missouri.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
A Tornado Watch remains in effect until 1100 PM CST for central and
east central Missouri.
&&
LAT...LON 3852 9234 3856 9212 3856 9205 3860 9194
3866 9164 3829 9165 3829 9219 3834 9220
3832 9226 3834 9229 3834 9234 3835 9236
TIME...MOT...LOC 0018Z 245DEG 48KT 3834 9223
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BrittThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 6:13 PM CST | Severe Thunderstorm Warning | LSX | Boone, Callaway, Cole, Moniteau | 47 min |
| Dec 10, 6:27 PM CST | Tornado Warning | LSX | Audrain, Callaway | 34 min |
| Dec 10, 6:30 PM CST | Tornado Warning | LSX | Callaway, Cole, Gasconade, Montgomery, Osage | 45 min |
| Dec 10, 6:42 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 48 min |
| Dec 10, 6:42 PM CST | Tornado Warning | LSX | Pike | 48 min |
| Dec 10, 6:49 PM CST | Tornado Warning | LSX | Franklin, Gasconade, Osage, Warren | 41 min |
| Dec 10, 6:50 PM CST | Tornado Warning | LSX | Audrain, Callaway, Montgomery, Pike, Ralls | 40 min |
| Dec 10, 7:00 PM CST | Tornado Warning | LSX | Gasconade, Lincoln, Montgomery, Pike, Warren | 45 min |
| Dec 10, 7:02 PM CST | Tornado Warning | LSX | Crawford, Franklin, Gasconade | 43 min |
| Dec 10, 7:11 PM CST | Tornado Warning | LSX | Lincoln, Montgomery, Pike | 49 min |
| Dec 10, 7:16 PM CST | Tornado Warning | LSX | Franklin, Lincoln, Saint Charles, Warren | 44 min |
| Dec 10, 7:30 PM CST | Tornado Warning | LSX | Lincoln | 45 min |
| Dec 10, 7:35 PM CST | Tornado Warning | LSX | Franklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren | 40 min |
| Dec 10, 7:49 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Washington | 26 min |
| Dec 10, 8:06 PM CST | Tornado Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 39 min |
| Dec 10, 8:10 PM CST | Severe Thunderstorm Warning | LSX | Franklin | 35 min |
| Dec 10, 8:29 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Louis, City of Saint Louis | 30 min |
| Dec 10, 8:34 PM CST | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 41 min |
| Dec 10, 8:47 PM CST | Tornado Warning | LSX | Franklin, Gasconade, Warren | 43 min |
| Dec 10, 9:07 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren and 1 more | 38 min |
| Dec 10, 9:39 PM CST | Tornado Warning | LSX | Saint Charles, Saint Louis | 51 min |
| Dec 10, 10:00 PM CST | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 45 min |
| Dec 10, 10:05 PM CST | Severe Thunderstorm Warning | LSX | City of Saint Louis | 25 min |
| Dec 10, 10:14 PM CST | Tornado Warning | LSX | Iron, Madison, Reynolds | 46 min |
| Dec 10, 10:19 PM CST | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois | 41 min |
| Dec 10, 10:26 PM CST | Severe Thunderstorm Warning | LSX | Reynolds | 20 min |
| Dec 10, 10:55 PM CST | Severe Thunderstorm Warning | LSX | Madison | 18 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.