Alert archive / Missouri / Tornado Warnings in 2010
Tornado Warning 20, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 23, 2010, 7:24 PM CDT for Lincoln County, Warren County, Missouri. It was in force for 51 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 23, 2010, 7:24 PM CDT (00:24 UTC)
- Expired
- Apr 23, 2010, 8:15 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Lincoln County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 53 km from the middle of the area, began a volume at 00:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 7:29 PM CDT | TORNADO | 4 E Hawk Point, MO | SMALL TORNADO ON THE GROUND WITH HEAVY ROTATION AND A LARGE WALL CLOUD...ONE MILE WEST OF THIS LOCATION. |
| Apr 23, 7:30 PM CDT | FUNNEL CLOUD | Hawk Point, MO | NUMEROUS REPORTS OF FUNNEL CLOUDS RECEIVED FROM THE PUBLIC |
| Apr 23, 7:48 PM CDT | TORNADO | 3 Sw Silex, MO | TORNADO SPOTTED BY CHASER NORTH OF TROY ON HIGHWAY 61. REPORT RELAYED BY WGEM |
| Apr 23, 8:14 PM CDT | TORNADO | 5 Ne Silex, MO | SPOTTER WAS ON US 61 ABOUT 5 MILES NORTHEAST OF SILEX...LOOKING AT ROPE TORNADO TO HIS WEST...ABOUT TWO MILES NORTH OF SILEX. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 23, 7:06 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.4 hours before the alert went out and 242 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
- 4 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 462 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 350 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
953 WFUS53 KLSX 240024 TORLSX MOC113-219-240115- /O.NEW.KLSX.TO.W.0020.100424T0024Z-100424T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 724 PM CDT FRI APR 23 2010 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... LINCOLN COUNTY IN EAST CENTRAL MISSOURI... NORTH CENTRAL WARREN COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 815 PM CDT * AT 722 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR HAWK POINT...OR 8 MILES WEST OF TROY...AND MOVING NORTHEAST AT 20 MPH. THIS STORM HAS ALREADY PRODUCED A TORNADO. * LOCATIONS IMPACTED INCLUDE... DAVIS...CAVE...SILEX AND WHITESIDE. 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 3922 9106 3907 9076 3891 9115 3896 9127 TIME...MOT...LOC 0024Z 223DEG 19KT 3899 9111 $$ KANOFSKY
2 follow-up statements
926
WWUS53 KLSX 240043
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
743 PM CDT FRI APR 23 2010
MOC219-240050-
/O.CAN.KLSX.TO.W.0020.000000T0000Z-100424T0115Z/
WARREN MO-
743 PM CDT FRI APR 23 2010
...THE TORNADO WARNING FOR NORTH CENTRAL WARREN COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3922 9106 3907 9076 3895 9112 3898 9120
3899 9120 3900 9124
TIME...MOT...LOC 0040Z 223DEG 19KT 3905 9104
$$
MOC113-240115-
/O.CON.KLSX.TO.W.0020.000000T0000Z-100424T0115Z/
LINCOLN MO-
743 PM CDT FRI APR 23 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR LINCOLN COUNTY UNTIL 815
PM CDT...
AT 735 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.
THIS DANGEROUS STORM WAS LOCATED NORTH OF HAWK POINT...MOVING
NORTHEAST AT 20 MPH. THIS STORM HAS ALREADY PRODUCED A TORNADO AND
FUNNEL CLOUDS HAVE BEEN REPORTED NEAR HAWK POINT.
LOCATIONS IMPACTED INCLUDE...
DAVIS...SILEX AND WHITESIDE.
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 3922 9106 3907 9076 3895 9112 3898 9120
3899 9120 3900 9124
TIME...MOT...LOC 0040Z 223DEG 19KT 3905 9104
$$
KANOFSKY471
WWUS53 KLSX 240056
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
756 PM CDT FRI APR 23 2010
MOC113-240115-
/O.CON.KLSX.TO.W.0020.000000T0000Z-100424T0115Z/
LINCOLN MO-
756 PM CDT FRI APR 23 2010
...A TORNADO WARNING REMAINS IN EFFECT FOR LINCOLN COUNTY UNTIL 815
PM CDT...
AT 748 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 3 MILES
SOUTHWEST OF SILEX AND WEST OF US HIGHWAY 61. DOPPLER RADAR
INDICATED THIS DANGEROUS STORM WAS MOVING NORTHEAST AT 20 MPH.
PEOPLE IN THE TOWN OF SILEX SHOULD TAKE COVER IMMEDIATELY.
LOCATIONS IMPACTED INCLUDE...
SILEX AND WHITESIDE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3922 9106 3907 9076 3895 9112 3898 9120
3899 9120 3900 9124
TIME...MOT...LOC 0053Z 223DEG 19KT 3910 9098
$$
KANOFSKYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 7:48 PM CDT | Flash Flood Warning | LSX | Boone, Cole, Moniteau | 6 hr |
| Apr 23, 8:11 PM CDT | Tornado Warning | LSX | Lincoln, Pike | 49 min |
| Apr 23, 8:51 PM CDT | Tornado Warning | LSX | Pike | 18 min |
| Apr 24, 1:29 AM CDT | Areal Flood Warning | LSX | Boone, Cole, Moniteau | 9 hr |
| Apr 24, 11:05 AM CDT | Flash Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Knox, Lewis and 6 more | 14 hr |
| Apr 24, 2:29 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Gasconade | 46 min |
| Apr 24, 3:07 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Washington | 23 min |
| Apr 24, 3:31 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Sainte Genevieve, Saint Francois, Saint Louis, Washington | 44 min |
| Apr 24, 3:52 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Osage | 38 min |
| Apr 24, 3:59 PM CDT | Tornado Warning | LSX | Franklin, Jefferson, Saint Louis | 31 min |
| Apr 24, 4:01 PM CDT | Flash Flood Warning | LSX | Boone, Callaway, Cole, Osage | 6 hr |
| Apr 24, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Sainte Genevieve | 25 min |
| Apr 24, 4:25 PM CDT | Tornado Warning | LSX | Jefferson, Saint Louis, City of Saint Louis | 35 min |
| Apr 24, 4:34 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 41 min |
| Apr 24, 4:43 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 32 min |
| Apr 24, 4:53 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Franklin, Gasconade, Montgomery, Osage and 1 more | 52 min |
| Apr 24, 5:03 PM CDT | Tornado Warning | LSX | Saint Charles | 57 min |
| Apr 24, 5:09 PM CDT | Tornado Warning | LSX | Gasconade, Lincoln, Montgomery, Warren | 51 min |
| Apr 24, 5:20 PM CDT | Areal Flood Advisory | LSX | Audrain, Boone, Callaway, Marion, Monroe, Ralls and 1 more | 6 hr |
| Apr 24, 5:34 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Montgomery, Pike, Ralls | 41 min |
| Apr 24, 5:45 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 6 hr |
| Apr 24, 5:51 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike, Warren | 24 min |
| Apr 24, 6:13 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Monroe, Pike, Ralls | 47 min |
Nearby
Tornado Warnings in Missouri, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.