Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 168, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 24, 2021, 4:49 PM CDT for Pike County, Illinois; Pike County, Ralls County, Missouri. It was in force for 41 min. 1 report 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, 4:49 PM CDT (21:49 UTC)
- Expired
- Oct 24, 2021, 5:30 PM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Pike County, IL, Pike County, MO, Ralls County, MO
The radar
The St Louis radar (KLSX), 88 km from the middle of the area, began a volume at 21:53 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, 5:23 PM CDT | TSTM WND DMG | 1 Nne Pike, IL | AT LEAST 10 MEDIUM TO SMALL SIZED TREES UPROOTED NEAR HIGHWAY 54. |
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
Davenport, (KDVN), launched 12:00Z, 9.8 hours before the alert went out and 248 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
- 972 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
236
WUUS53 KLSX 242149
SVRLSX
ILC149-MOC163-173-242230-
/O.NEW.KLSX.SV.W.0168.211024T2149Z-211024T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
449 PM CDT Sun Oct 24 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Central Pike County in west central Illinois...
Central Ralls County in northeastern Missouri...
Northwestern Pike County in northeastern Missouri...
* Until 530 PM CDT.
* At 449 PM CDT, a severe thunderstorm was located over Spencerburg,
moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Bowling Green and Frankford around 455 PM CDT.
Tarrants around 500 PM CDT.
Other locations in the path of this severe thunderstorm include
Louisiana, Pike, Atlas and Pittsfield.
This includes Interstate 72 between exits 31 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southwestern
and west central Illinois...and central and northeastern 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 southwestern
and west central Illinois...and central and northeastern Missouri.
&&
LAT...LON 3944 9066 3940 9090 3940 9093 3939 9094
3931 9143 3932 9144 3932 9151 3952 9145
3980 9082
TIME...MOT...LOC 2149Z 246DEG 47KT 3940 9138
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Glass2 follow-up statements
808
WWUS53 KLSX 242158
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
458 PM CDT Sun Oct 24 2021
MOC173-242207-
/O.CAN.KLSX.SV.W.0168.000000T0000Z-211024T2230Z/
Ralls MO-
458 PM CDT Sun Oct 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL RALLS COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1000 PM CDT for southwestern
and west central Illinois...and northeastern Missouri.
LAT...LON 3944 9066 3940 9090 3940 9093 3939 9094
3931 9143 3932 9143 3938 9142 3950 9136
3980 9082
TIME...MOT...LOC 2157Z 246DEG 37KT 3943 9129
$$
ILC149-MOC163-242230-
/O.CON.KLSX.SV.W.0168.000000T0000Z-211024T2230Z/
Pike IL-Pike MO-
458 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS AND NORTHWESTERN
PIKE COUNTIES IN NORTHEASTERN MISSOURI...
At 457 PM CDT, a severe thunderstorm was located near Frankford,
moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Louisiana, Pike, Pleasant Hill, Atlas and Pittsfield.
This includes Interstate 72 between exits 31 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southwestern
and west central Illinois...and northeastern Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3944 9066 3940 9090 3940 9093 3939 9094
3931 9143 3932 9143 3938 9142 3950 9136
3980 9082
TIME...MOT...LOC 2157Z 246DEG 37KT 3943 9129
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Glass099
WWUS53 KLSX 242210
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
510 PM CDT Sun Oct 24 2021
ILC149-MOC163-242230-
/O.CON.KLSX.SV.W.0168.000000T0000Z-211024T2230Z/
Pike IL-Pike MO-
510 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS AND NORTHWESTERN
PIKE COUNTIES IN NORTHEASTERN MISSOURI...
At 509 PM CDT, a severe thunderstorm was located near Louisiana,
moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Bowling Green, Pittsfield, Louisiana, Pleasant Hill, Atlas, Pike,
Curryville, Tarrants, Independence, Martinsburg, New Canton, Nebo,
Baylis, New Salem, El Dara, Time, New Hartford, Summer Hill, Rockport
and Ashburn.
This includes Interstate 72 between exits 31 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1000 PM CDT for southwestern
and west central Illinois...and northeastern Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3944 9066 3940 9090 3940 9093 3939 9094
3932 9135 3934 9136 3941 9133 3954 9128
3980 9082
TIME...MOT...LOC 2209Z 244DEG 37KT 3949 9115
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
GlassThe 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 | Adams, Brown | 6 hr |
| Oct 24, 4:58 AM CDT | Flash Flood Warning | LSX | Adams | 2 hr |
| Oct 24, 4:03 PM CDT | Flash Flood Warning | LSX | Adams, Brown | 4 hr |
| Oct 24, 5:14 PM CDT | Flash Flood Warning | LSX | Brown, Pike | 4 hr |
| Oct 24, 5:17 PM CDT | Tornado Warning | LSX | Calhoun, Greene, Pike | 43 min |
| Oct 24, 9:49 AM CDT | River Flood Warning | LSX | Marion | 23 hr |
| Oct 24, 5:03 PM CDT | River Flood Warning | LSX | Marion | 38 hr |
| 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 |
| Oct 24, 6:37 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 38 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2021Severe Thunderstorm Warnings in Illinois, 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.