Alert archive / Illinois / Tornado Warnings in 2018
Tornado Warning 12, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jul 20, 2018, 12:11 AM CDT for Fayette County, Marion County, Illinois. It was in force for 34 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
- Jul 20, 2018, 12:11 AM CDT (05:11 UTC)
- Expired
- Jul 20, 2018, 12:45 AM CDT
- In force
- 34 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Fayette County, IL, Marion County, IL
The radar
The Evansville,IN radar (KVWX), 132 km from the middle of the area, began a volume at 05:14 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 |
|---|---|---|---|
| Jul 19, 6:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 5.2 hours before the alert went out and 154 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
- 939 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1091 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.9
The text
As transmitted.
383
WFUS53 KLSX 200511
TORLSX
ILC051-121-200545-
/O.NEW.KLSX.TO.W.0012.180720T0511Z-180720T0545Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
1211 AM CDT FRI JUL 20 2018
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern Marion County in south central Illinois...
Southwestern Fayette County in south central Illinois...
* Until 1245 AM CDT.
* At 1211 AM CDT, a severe thunderstorm capable of producing a
tornado was located near Patoka, moving east at 30 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 dangerous storm will be near...
Shobonier around 1220 AM CDT.
Other locations impacted by this tornadic thunderstorm include Vernon
and St. Paul.
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 3876 8916 3883 8919 3896 8893 3876 8887
TIME...MOT...LOC 0511Z 255DEG 28KT 3881 8914
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
TES2 follow-up statements
859
WWUS53 KLSX 200527
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1227 AM CDT FRI JUL 20 2018
ILC051-200537-
/O.CAN.KLSX.TO.W.0012.000000T0000Z-180720T0545Z/
Fayette IL-
1227 AM CDT FRI JUL 20 2018
...THE TORNADO WARNING FOR SOUTHWESTERN FAYETTE COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
south central Illinois.
LAT...LON 3876 8905 3882 8902 3882 8889 3881 8888
3877 8887 3876 8887
TIME...MOT...LOC 0527Z 276DEG 30KT 3878 8897
$$
ILC121-200545-
/O.CON.KLSX.TO.W.0012.000000T0000Z-180720T0545Z/
Marion IL-
1227 AM CDT FRI JUL 20 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR NORTH
CENTRAL MARION COUNTY...
At 1227 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Kinmundy, moving east at 35 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
north central Marion County.
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 3876 8905 3882 8902 3882 8889 3881 8888
3877 8887 3876 8887
TIME...MOT...LOC 0527Z 276DEG 30KT 3878 8897
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
TES630
WWUS53 KLSX 200546
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
1246 AM CDT FRI JUL 20 2018
ILC121-200556-
/O.EXP.KLSX.TO.W.0012.000000T0000Z-180720T0545Z/
Marion IL-
1246 AM CDT FRI JUL 20 2018
...THE TORNADO WARNING FOR NORTH CENTRAL MARION COUNTY HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been allowed to expire. However gusty
winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
south central Illinois.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
St Louis.
LAT...LON 3876 8905 3882 8902 3882 8889 3881 8888
3877 8887 3876 8887
TIME...MOT...LOC 0546Z 255DEG 28KT 3882 8879
$$
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 7:04 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 56 min |
| Jul 19, 7:26 PM CDT | Tornado Warning | LSX | Adams | 37 min |
| Jul 19, 7:53 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 67 min |
| Jul 19, 7:56 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 64 min |
| Jul 19, 8:50 PM CDT | Special Weather Statement | LSX | Adams | 25 min |
| Jul 19, 8:54 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 66 min |
| Jul 19, 8:58 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 62 min |
| Jul 19, 9:18 PM CDT | Special Weather Statement | LSX | Adams | 27 min |
| Jul 19, 9:38 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 52 min |
| Jul 19, 9:41 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 49 min |
| Jul 19, 10:19 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Macoupin, Madison | 41 min |
| Jul 19, 10:59 PM CDT | Special Weather Statement | LSX | Macoupin, Madison | 46 min |
| Jul 19, 11:36 PM CDT | Special Weather Statement | LSX | Bond, Clinton, Fayette, Montgomery | 39 min |
| Jul 20, 12:21 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion | 39 min |
Nearby
Tornado Warnings in Illinois, 2018Every tornado warning in 2018Tornadoes in 2018
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.