Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 105, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 25, 2021, 7:15 PM CDT for Calhoun County, Greene County, Pike County, Illinois; Pike County, Missouri. It was in force for 45 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
- Jun 25, 2021, 7:15 PM CDT (00:15 UTC)
- Expired
- Jun 25, 2021, 8:00 PM CDT
- In force
- 45 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Calhoun County, IL, Greene County, IL, Pike County, IL, Pike County, MO
The radar
The St Louis radar (KLSX), 88 km from the middle of the area, began a volume at 00:15 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 |
|---|---|---|---|
| Jun 25, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.3 hours before the alert went out and 190 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
- 1254 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 910 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 6.6
The text
As transmitted.
229
WUUS53 KLSX 260015
SVRLSX
ILC013-061-149-MOC163-260100-
/O.NEW.KLSX.SV.W.0105.210626T0015Z-210626T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
715 PM CDT Fri Jun 25 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Northwestern Calhoun County in southwestern Illinois...
Northwestern Greene County in southwestern Illinois...
Southeastern Pike County in west central Illinois...
Southeastern Pike County in northeastern Missouri...
* Until 800 PM CDT.
* At 715 PM CDT, a severe thunderstorm was located over Clarksville,
moving northeast at 35 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...
Pleasant Hill and Belleview around 725 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3959 9059 3954 9057 3952 9058 3952 9048
3945 9038 3923 9098 3934 9106 3963 9063
TIME...MOT...LOC 0015Z 236DEG 31KT 3933 9092
HAIL...0.88IN
WIND...60MPH
$$
MRM3 follow-up statements
980
WWUS53 KLSX 260024
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
724 PM CDT Fri Jun 25 2021
ILC013-061-149-MOC163-260100-
/O.CON.KLSX.SV.W.0105.000000T0000Z-210626T0100Z/
Calhoun IL-Greene IL-Pike IL-Pike MO-
724 PM CDT Fri Jun 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR NORTHWESTERN CALHOUN AND NORTHWESTERN GREENE COUNTIES IN
SOUTHWESTERN ILLINOIS...SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS AND EAST CENTRAL PIKE COUNTIES IN NORTHEASTERN MISSOURI...
At 724 PM CDT, a severe thunderstorm was located near Clarksville,
moving northeast at 35 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
northwestern Calhoun and northwestern Greene Counties in southwestern
Illinois, southeastern Pike County in west central Illinois and east
central Pike Counties in northeastern Missouri, including the
following locations... Pearl, Nebo, Hillview, Montezuma, Bedford,
Time, Patterson, Milton and Beecreek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3959 9059 3954 9057 3952 9058 3952 9048
3945 9038 3930 9088 3940 9098 3963 9063
TIME...MOT...LOC 0024Z 230DEG 32KT 3939 9084
HAIL...0.88IN
WIND...60MPH
$$
MRM583
WWUS53 KLSX 260038
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
738 PM CDT Fri Jun 25 2021
ILC013-061-MOC163-260048-
/O.CAN.KLSX.SV.W.0105.000000T0000Z-210626T0100Z/
Calhoun IL-Greene IL-Pike MO-
738 PM CDT Fri Jun 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CALHOUN...
NORTHWESTERN GREENE COUNTIES IN SOUTHWESTERN ILLINOIS AND EAST
CENTRAL PIKE COUNTIES IN NORTHEASTERN MISSOURI IS CANCELLED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
west central Illinois.
LAT...LON 3959 9059 3954 9057 3947 9068 3952 9080
3963 9063
TIME...MOT...LOC 0038Z 227DEG 45KT 3953 9068
$$
ILC149-260100-
/O.CON.KLSX.SV.W.0105.000000T0000Z-210626T0100Z/
Pike IL-
738 PM CDT Fri Jun 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR EAST CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...
At 738 PM CDT, a severe thunderstorm was located 8 miles southeast of
Pittsfield, moving northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Bedford, Montezuma, Milton and Time.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3959 9059 3954 9057 3947 9068 3952 9080
3963 9063
TIME...MOT...LOC 0038Z 227DEG 45KT 3953 9068
HAIL...<.75IN
WIND...60MPH
$$
MRM100
WWUS53 KLSX 260051
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
751 PM CDT Fri Jun 25 2021
ILC149-260101-
/O.EXP.KLSX.SV.W.0105.000000T0000Z-210626T0100Z/
Pike IL-
751 PM CDT Fri Jun 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PIKE COUNTY IN
WEST CENTRAL ILLINOIS WILL EXPIRE AT 800 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.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
west central Illinois.
LAT...LON 3959 9059 3954 9057 3947 9068 3952 9080
3963 9063
TIME...MOT...LOC 0051Z 236DEG 31KT 3959 9057
$$
MRMThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:32 PM CDT | Flash Flood Warning | LSX | Adams, Pike | 6 hr |
| Jun 25, 9:29 PM CDT | Flash Flood Warning | LSX | Calhoun, Greene, Jersey | 6 hr |
| Jun 26, 1:25 AM CDT | Areal Flood Warning | LSX | Adams, Pike | 14 hr |
| Jun 26, 3:29 AM CDT | Areal Flood Warning | LSX | Calhoun, Greene, Jersey | 9 hr |
| Jun 26, 11:44 AM CDT | River Flood Warning | LSX | Madison | 7 days |
| Jun 26, 12:13 PM CDT | River Flood Warning | LSX | Jackson, Randolph | 9 days |
| Jun 26, 1:22 PM CDT | Tornado Warning | LSX | Greene | 15 min |
| Jun 26, 1:37 PM CDT | Tornado Warning | LSX | Calhoun | 38 min |
| Jun 26, 2:09 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 51 min |
| Jun 25, 7:20 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 40 min |
| Jun 25, 7:50 PM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery, Saint Charles, Warren | 6 hr |
| Jun 25, 8:00 PM CDT | Flash Flood Warning | LSX | Audrain, Montgomery, Pike, Ralls | 6 hr |
| Jun 25, 8:11 PM CDT | Flash Flood Warning | LSX | Boone, Callaway, Cole, Montgomery, Osage, Warren | 4 hr |
| Jun 25, 9:43 PM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery, Saint Charles, Warren | 4 hr |
| Jun 25, 11:32 PM CDT | River Flood Warning | LSX | Marion | 11 hr |
| Jun 26, 12:43 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Gasconade, Moniteau and 5 more | 6 hr |
| Jun 26, 12:55 AM CDT | River Flood Warning | LSX | Cole | 35 hr |
| Jun 26, 1:48 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade, Lincoln, Montgomery, Saint Charles, Warren | 6 hr |
| Jun 26, 6:25 AM CDT | Areal Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Gasconade, Moniteau and 4 more | 11 hr |
| Jun 26, 7:34 AM CDT | Areal Flood Warning | LSX | Franklin, Gasconade, Lincoln, Montgomery, Saint Charles, Warren | 8 hr |
| Jun 26, 11:42 AM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 8 days |
| Jun 26, 3:22 PM CDT | Areal Flood Warning | LSX | Lincoln | 2 hr |
Nearby
Severe Thunderstorm Warnings in Illinois, 2021Severe 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.