Alert archive / Illinois / Tornado Warnings in 2010
Tornado Warning 28, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 24, 2010, 5:57 PM CDT for Macoupin County, Montgomery County, Illinois. It was in force for 38 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
- Apr 24, 2010, 5:57 PM CDT (22:57 UTC)
- Expired
- Apr 24, 2010, 6:35 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Macoupin County, IL, Montgomery County, IL
The radar
The Lincoln radar (KILX), 92 km from the middle of the area, began a volume at 22:59 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 |
|---|---|---|---|
| Apr 24, 3:20 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.0 hours before the alert went out and 123 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
- 494 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 601 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
076
WFUS53 KLSX 242257
TORLSX
ILC117-135-242345-
/O.NEW.KLSX.TO.W.0028.100424T2257Z-100424T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
557 PM CDT SAT APR 24 2010
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN MACOUPIN COUNTY IN SOUTHWEST ILLINOIS...
WESTERN MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 645 PM CDT
* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 7 MILES EAST OF CARLINVILLE...AND MOVING
NORTHEAST AT 45 MPH.
* LOCATIONS IMPACTED INCLUDE...
VIRDEN...RAYMOND...GIRARD...FARMERSVILLE...WHITE OAK...STANDARD
CITY...ATWATER...NILWOOD...WAGGONER AND HARVEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3926 8935 3906 8969 3922 8993 3952 8992
3953 8954 3952 8953 3936 8953 3935 8939
TIME...MOT...LOC 2257Z 214DEG 40KT 3931 8974
$$
GLASS2 follow-up statements
175
WWUS53 KLSX 242311
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
611 PM CDT SAT APR 24 2010
ILC117-135-242345-
/O.CON.KLSX.TO.W.0028.000000T0000Z-100424T2345Z/
MONTGOMERY IL-MACOUPIN IL-
611 PM CDT SAT APR 24 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN MACOUPIN AND
WESTERN MONTGOMERY COUNTIES UNTIL 645 PM CDT...
AT 609 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR GIRARD...OR 8 MILES SOUTH OF VIRDEN...MOVING
NORTHEAST AT 45 MPH.
LOCATIONS IMPACTED INCLUDE...
VIRDEN...FARMERSVILLE...WHITE OAK AND HARVEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3926 8935 3906 8969 3922 8993 3952 8992
3953 8954 3952 8953 3936 8953 3935 8939
TIME...MOT...LOC 2310Z 214DEG 40KT 3941 8972
$$
GLASS247
WWUS53 KLSX 242335
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
635 PM CDT SAT APR 24 2010
ILC117-135-242345-
/O.CAN.KLSX.TO.W.0028.000000T0000Z-100424T2345Z/
MONTGOMERY IL-MACOUPIN IL-
635 PM CDT SAT APR 24 2010
...THE TORNADO WARNING FOR NORTHEASTERN MACOUPIN AND WESTERN
MONTGOMERY COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 1000 PM.
LAT...LON 3926 8935 3906 8969 3922 8993 3952 8992
3953 8954 3952 8953 3936 8953 3935 8939
TIME...MOT...LOC 2335Z 214DEG 40KT 3964 8952
$$
GLASSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 8:51 PM CDT | Tornado Warning | LSX | Calhoun, Pike | 18 min |
| Apr 24, 11:05 AM CDT | Flash Flood Watch | LSX | Adams | 14 hr |
| Apr 24, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 25 min |
| Apr 24, 4:25 PM CDT | Tornado Warning | LSX | Madison, Saint Clair | 35 min |
| Apr 24, 4:34 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 41 min |
| Apr 24, 4:43 PM CDT | Tornado Warning | LSX | Jersey, Madison | 32 min |
| Apr 24, 5:03 PM CDT | Tornado Warning | LSX | Bond, Jersey, Macoupin, Madison, Montgomery | 57 min |
| Apr 24, 5:14 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 36 min |
| Apr 24, 5:20 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 20 min |
| Apr 24, 6:53 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 18 min |
Nearby
Tornado Warnings in Illinois, 2010Every tornado warning in 2010Tornadoes in 2010
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.