Alert archive / Illinois / Tornado Warnings in 2010
Tornado Warning 16, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 4, 2010, 11:29 PM CDT for Montgomery County, Illinois. It was in force for 46 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 4, 2010, 11:29 PM CDT (04:29 UTC)
- Expired
- Apr 5, 2010, 12:15 AM CDT
- In force
- 46 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
County Montgomery County, IL
The radar
The Lincoln radar (KILX), 110 km from the middle of the area, began a volume at 04:31 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 4, 8:43 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 4.5 hours before the alert went out and 131 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
- 2143 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 334 m²/s²
- 0-3 km storm-relative helicity
- 480 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
384 WFUS53 KLSX 050429 TORLSX ILC135-050515- /O.NEW.KLSX.TO.W.0016.100405T0429Z-100405T0515Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1129 PM CDT SUN APR 4 2010 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS... * UNTIL 1215 AM CDT * AT 1127 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR LITCHFIELD...AND MOVING EAST AT 40 MPH. * LOCATIONS IMPACTED INCLUDE... LITCHFIELD...HILLSBORO...NOKOMIS...TAYLOR SPRINGS...COFFEEN... WITT...VAN BURENSBURG...HONEY BEND...BUTLER...IRVING...CHAPMAN... COALTON...WENONAH AND FILLMORE. 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 3903 8926 3915 8971 3925 8971 3934 8925 TIME...MOT...LOC 0429Z 270DEG 35KT 3918 8970 $$ CVKING
3 follow-up statements
460
WWUS53 KLSX 050442
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1142 PM CDT SUN APR 4 2010
ILC135-050515-
/O.CON.KLSX.TO.W.0016.000000T0000Z-100405T0515Z/
MONTGOMERY IL-
1142 PM CDT SUN APR 4 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR MONTGOMERY COUNTY UNTIL
1215 AM CDT...
AT 1140 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
PAIR OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES. THE
FIRST STORM WAS LOCATED NEAR HILLSBORO...MOVING EAST AT 55
MPH...WHILE THE SECOND WAS JUST ENTERING THE WESTERN PORTION OF THE
COUNTY NEAR LITCHFIELD.
LOCATIONS IMPACTED INCLUDE...
LITCHFIELD...NOKOMIS...COFFEEN...WITT...VAN BURENSBURG
IRVING...CHAPMAN... FILLMORE...COALTON AND WENONAH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3903 8926 3915 8970 3925 8971 3925 8970
3934 8925
TIME...MOT...LOC 0441Z 258DEG 46KT 3921 8949
$$
CVKING443 WWUS53 KLSX 050457 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1157 PM CDT SUN APR 4 2010 ILC135-050515- /O.CON.KLSX.TO.W.0016.000000T0000Z-100405T0515Z/ MONTGOMERY IL- 1157 PM CDT SUN APR 4 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL MONTGOMERY COUNTY UNTIL 1215 AM CDT... AT 1153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR HILLSBORO...MOVING EAST AT 50 MPH. LOCATIONS IMPACTED INCLUDE... FILLMORE. 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 3911 8926 3914 8948 3921 8948 3928 8925 TIME...MOT...LOC 0457Z 262DEG 57KT 3918 8934 $$ CVKING
004 WWUS53 KLSX 050514 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1214 AM CDT MON APR 5 2010 ILC135-050524- /O.EXP.KLSX.TO.W.0016.000000T0000Z-100405T0515Z/ MONTGOMERY IL- 1214 AM CDT MON APR 5 2010 ...THE TORNADO WARNING FOR CENTRAL MONTGOMERY COUNTY WILL EXPIRE AT 1215 AM CDT... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 2 AM. LAT...LON 3911 8926 3914 8948 3921 8948 3928 8925 TIME...MOT...LOC 0514Z 262DEG 57KT 3922 8900 $$ CVKING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 8:34 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 26 min |
| Apr 4, 8:55 PM CDT | Tornado Warning | LSX | Calhoun | 35 min |
| Apr 4, 8:58 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 32 min |
| Apr 4, 9:22 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 38 min |
| Apr 4, 9:38 PM CDT | Tornado Warning | LSX | Greene, Jersey | 26 min |
| Apr 4, 9:50 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike | 40 min |
| Apr 4, 9:55 PM CDT | Tornado Warning | LSX | Macoupin | 35 min |
| Apr 4, 10:16 PM CDT | Tornado Warning | LSX | Greene, Macoupin | 29 min |
| Apr 4, 10:30 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Macoupin, Montgomery | 45 min |
| Apr 4, 10:35 PM CDT | Tornado Warning | LSX | Macoupin | 40 min |
| Apr 4, 10:41 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 34 min |
| Apr 4, 10:48 PM CDT | Tornado Warning | LSX | Macoupin, Montgomery | 42 min |
| Apr 4, 11:13 PM CDT | Tornado Warning | LSX | Jersey, Macoupin | 32 min |
| Apr 4, 11:51 PM CDT | Tornado Warning | LSX | Fayette, Montgomery | 39 min |
| Apr 4, 11:54 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 36 min |
| Apr 5, 12:30 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 30 min |
| Apr 5, 2:50 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Madison, Montgomery | 40 min |
| Apr 5, 3:28 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 47 min |
| Apr 5, 4:07 PM CDT | Areal Flood Advisory | LSX | Montgomery | 4 hr |
| Apr 5, 4:16 PM CDT | Tornado Warning | LSX | Fayette, Montgomery | 32 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.