Alert archive / Illinois / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 41, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 14, 2018, 7:07 PM CDT for Fayette County, Marion County, Illinois. It was in force for 53 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
- May 14, 2018, 7:07 PM CDT (00:07 UTC)
- Expired
- May 14, 2018, 8:00 PM CDT
- In force
- 53 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Fayette County, IL, Marion County, IL
The radar
The Evansville,IN radar (KVWX), 125 km from the middle of the area, began a volume at 00:08 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 |
|---|---|---|---|
| May 14, 2:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.1 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
- 920 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 2073 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
735
WUUS53 KLSX 150007
SVRLSX
ILC051-121-150100-
/O.NEW.KLSX.SV.W.0041.180515T0007Z-180515T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
707 PM CDT MON MAY 14 2018
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Marion County in south central Illinois...
Fayette County in south central Illinois...
* Until 800 PM CDT.
* At 707 PM CDT, severe thunderstorms were located along a line
extending from near Nokomis to near Beckemeyer, moving east at 40
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Centralia, Salem, Vandalia, St. Elmo, Sandoval, Wamac, Central
City, Odin, Ramsey, Kinmundy, Brownstown, Patoka, Farina, Omega,
Stephen Forbes Station, Shobonier, Fairman, Wrights Corner, Helm
and Avena.
This includes the following highways...
Interstate 70 in Illinois between exits 61 and 76.
Interstate 57 in Illinois between exits 109 and 135.
This also includes Ramsey Lake State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3847 8914 3874 8914 3874 8925 3922 8925
3922 8881 3891 8881 3891 8869 3847 8870
TIME...MOT...LOC 0007Z 267DEG 34KT 3932 8926 3856 8939
HAIL...<.75IN
WIND...60MPH
$$
Tilly2 follow-up statements
042
WWUS53 KLSX 150046
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
746 PM CDT MON MAY 14 2018
ILC051-121-150100-
/O.CON.KLSX.SV.W.0041.000000T0000Z-180515T0100Z/
Marion IL-Fayette IL-
746 PM CDT MON MAY 14 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR MARION AND CENTRAL FAYETTE COUNTIES...
At 746 PM CDT, severe thunderstorms were located along a line
extending from near Shelbyville to near Salem, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Centralia, Salem, St. Elmo, Sandoval, Wamac, Central City, Odin,
Kinmundy, Brownstown, Patoka, Farina, Omega, Stephen Forbes Station,
Fairman, Wrights Corner, Helm, Avena, Tonti, La Clede and Iuka.
This includes the following highways...
Interstate 70 in Illinois between exits 68 and 76.
Interstate 57 in Illinois between exits 109 and 135.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3847 8914 3855 8914 3922 8903 3922 8881
3891 8881 3891 8869 3847 8870
TIME...MOT...LOC 0046Z 267DEG 34KT 3934 8881 3858 8894
HAIL...<.75IN
WIND...60MPH
$$
Tilly670
WWUS53 KLSX 150056
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
756 PM CDT MON MAY 14 2018
ILC051-121-150106-
/O.EXP.KLSX.SV.W.0041.000000T0000Z-180515T0100Z/
Marion IL-Fayette IL-
756 PM CDT MON MAY 14 2018
...THE SEVERE THUNDERSTORM WARNING FOR MARION AND CENTRAL FAYETTE
COUNTIES WILL EXPIRE AT 800 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds are still possible with
these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
south central Illinois.
LAT...LON 3847 8914 3855 8914 3922 8903 3922 8881
3891 8881 3891 8869 3847 8870
TIME...MOT...LOC 0056Z 267DEG 34KT 3934 8871 3858 8884
$$
TillyThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 3:49 PM CDT | Special Weather Statement | LSX | Macoupin | 41 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2018Every severe thunderstorm warning 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.