Alert archive / Missouri / Tornado Warnings in 2010
Tornado Warning 74, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Nov 24, 2010, 10:31 PM CST for Franklin County, Jefferson County, Washington County, Missouri. It was in force for 44 min. 1 report 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
- Nov 24, 2010, 10:31 PM CST (04:31 UTC)
- Expired
- Nov 24, 2010, 11:15 PM CST
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Franklin County, MO, Jefferson County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 61 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 24, 11:00 PM CST | TSTM WND GST 50 | Hillsboro, MO | PUBLIC REPORT RELAYED BY MEDIA |
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 |
|---|---|---|---|
| Nov 24, 8:23 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 4.5 hours before the alert went out and 294 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
- 542 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 793 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- 419 m²/s²
- 0-3 km storm-relative helicity
- 460 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 6.6
The text
As transmitted, in the capitals the NWS used until 2016.
972
WFUS53 KLSX 250431
TORLSX
MOC071-099-221-250515-
/O.NEW.KLSX.TO.W.0074.101125T0431Z-101125T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1031 PM CST WED NOV 24 2010
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
CENTRAL JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 1115 PM CST
* AT 1027 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO. THESE
DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM PARKWAY
TO ANTHONIES MILL...AND MOVING EAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
CEDAR HILL...HILLSBORO...DE SOTO...ANTONIA...LONEDELL...
RICHWOODS...DITTMER...GRUBVILLE...OERMANN...FLETCHER...MORSE
MILL...OTTO AND VICTORIA.
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.
TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.
&&
LAT...LON 3807 9110 3830 9098 3841 9043 3813 9054
3805 9110
TIME...MOT...LOC 0431Z 261DEG 32KT 3829 9090 3807 9100
$$
TRUETT1 follow-up statement
248 WWUS53 KLSX 250453 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1053 PM CST WED NOV 24 2010 MOC071-250503- /O.CAN.KLSX.TO.W.0074.000000T0000Z-101125T0515Z/ FRANKLIN MO- 1053 PM CST WED NOV 24 2010 ...THE TORNADO WARNING FOR SOUTHEASTERN FRANKLIN COUNTY IS CANCELLED... THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED ACROSS THIS AREA. HOWEVER...A TORNADO WATCH REMAINS IN EFFECT UNTIL 4 AM. LAT...LON 3809 9083 3836 9067 3841 9043 3813 9054 TIME...MOT...LOC 0453Z 261DEG 32KT 3835 9060 3813 9070 $$ MOC099-221-250515- /O.CON.KLSX.TO.W.0074.000000T0000Z-101125T0515Z/ WASHINGTON MO-JEFFERSON MO- 1053 PM CST WED NOV 24 2010 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL JEFFERSON AND NORTHEASTERN WASHINGTON COUNTIES UNTIL 1115 PM CST... AT 1048 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO. THESE DANGEROUS STORMS WERE LOCATED ALONG A LINE EXTENDING FROM CEDAR HILL TO 5 MILES SOUTHEAST OF RICHWOODS...MOVING EAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... HILLSBORO...ANTONIA...DE SOTO...OTTO AND VICTORIA. 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. TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW. && LAT...LON 3809 9083 3836 9067 3841 9043 3813 9054 TIME...MOT...LOC 0453Z 261DEG 32KT 3835 9060 3813 9070 $$ TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 7:26 PM CST | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Osage | 34 min |
| Nov 24, 9:06 PM CST | Severe Thunderstorm Warning | LSX | Saint Louis | 24 min |
| Nov 24, 9:26 PM CST | Areal Flood Advisory | LSX | Crawford, Franklin, Gasconade, Jefferson, Osage, Saint Charles and 4 more | 6 hr |
| Nov 24, 9:39 PM CST | Tornado Warning | LSX | Crawford, Franklin, Washington | 51 min |
| Nov 24, 10:25 PM CST | Tornado Warning | LSX | Crawford, Washington | 50 min |
| Nov 24, 11:03 PM CST | Tornado Warning | LSX | Jefferson, Sainte Genevieve, Saint Francois, Washington | 42 min |
| Nov 24, 11:46 PM CST | Tornado Warning | LSX | Sainte Genevieve, Saint Francois | 44 min |
| Nov 25, 3:31 AM CST | Areal Flood Advisory | LSX | Crawford, Franklin, Gasconade, Jefferson, Osage, Saint Charles and 4 more | 6 hr |
| Nov 25, 2:45 PM CST | River Flood Warning | LSX | Osage | 5 hr |
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.