Alert archive / Illinois / Tornado Warnings in 2023
Tornado Warning 29, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Aug 6, 2023, 3:27 PM CDT for Brown County, Illinois. It was in force for 48 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 6, 2023, 3:27 PM CDT (20:27 UTC)
- Expired
- Aug 6, 2023, 4:15 PM CDT
- In force
- 48 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Brown County, IL
The radar
The Lincoln radar (KILX), 111 km from the middle of the area, began a volume at 20:30 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 |
|---|---|---|---|
| Aug 6, 3:16 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.5 hours before the alert went out and 173 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
- 749 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -98 m²/s²
- 0-3 km storm-relative helicity
- -85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
569
WFUS53 KLSX 062027
TORLSX
ILC009-062115-
/O.NEW.KLSX.TO.W.0029.230806T2027Z-230806T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
327 PM CDT Sun Aug 6 2023
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northeastern Brown County in west central Illinois...
* Until 415 PM CDT.
* At 327 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Mount Sterling, moving east at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly rural areas of
northeastern Brown County, including the following locations... La
Grange, Coopertown, and Ripley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4005 9068 4005 9066 4003 9065 4002 9063
4003 9061 4001 9062 4000 9060 3998 9060
3999 9051 3997 9051 3995 9053 3991 9055
3993 9071 4004 9075 4006 9068
TIME...MOT...LOC 2027Z 277DEG 16KT 3998 9076
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Carney2 follow-up statements
754
WWUS53 KLSX 062057
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
357 PM CDT Sun Aug 6 2023
ILC009-062115-
/O.CON.KLSX.TO.W.0029.000000T0000Z-230806T2115Z/
Brown IL-
357 PM CDT Sun Aug 6 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR EAST
CENTRAL BROWN COUNTY...
At 357 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles east of Mount Sterling, moving east at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
La Grange and Coopertown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4002 9063 4001 9062 4000 9060 3998 9060
3999 9051 3997 9051 3995 9053 3991 9055
3995 9069 3998 9069
TIME...MOT...LOC 2057Z 277DEG 18KT 3997 9061
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Carney386
WWUS53 KLSX 062115
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
415 PM CDT Sun Aug 6 2023
ILC009-062125-
/O.EXP.KLSX.TO.W.0029.000000T0000Z-230806T2115Z/
Brown IL-
415 PM CDT Sun Aug 6 2023
...THE TORNADO WARNING FOR EAST CENTRAL BROWN COUNTY HAS EXPIRED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.
A Tornado Watch remains in effect until 1000 PM CDT for west central
Illinois.
LAT...LON 4002 9063 4001 9062 4000 9060 3998 9060
3999 9051 3997 9051 3995 9053 3991 9055
3995 9069 3998 9069
TIME...MOT...LOC 2115Z 277DEG 16KT 3996 9051
$$
CarneyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 2:57 PM CDT | Tornado Warning | LSX | Adams, Brown | 63 min |
| Aug 6, 3:39 PM CDT | Tornado Warning | LSX | Adams | 34 min |
| Aug 6, 4:01 PM CDT | Areal Flood Advisory | LSX | Adams, Brown | 3 hr |
| Aug 6, 4:33 PM CDT | Tornado Warning | LSX | Brown | 13 min |
| Aug 6, 6:12 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 48 min |
| Aug 6, 6:36 PM CDT | Tornado Warning | LSX | Fayette | 39 min |
| Aug 6, 6:48 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 57 min |
| Aug 6, 6:51 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 24 min |
Nearby
Tornado Warnings in Illinois, 2023Every tornado warning in 2023Tornadoes in 2023
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.