Alert archive / Missouri / Tornado Warnings in 2001
Tornado Warning 19, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Oct 24, 2001, 12:03 PM CDT for Franklin County, Saint Louis County, Missouri. It was in force for 57 min. 11 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Oct 24, 2001, 12:03 PM CDT (17:03 UTC)
- Expired
- Oct 24, 2001, 1:00 PM CDT
- In force
- 57 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Franklin County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 20 km from the middle of the area, began a volume at 17:04 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 |
|---|---|---|---|
| Oct 24, 12:15 PM CDT | Hail 1 | Union, MO | Amateur radio spotters reported 1 inch hail. |
| Oct 24, 12:20 PM CDT | Hail 1 | Ellisville, MO | Storm spotters reported 1 inch hail. |
| Oct 24, 12:25 PM CDT | Hail 1 | Ballwin, MO | |
| Oct 24, 12:31 PM CDT | Hail 1 | Union, MO | |
| Oct 24, 12:36 PM CDT | Hail 1 | Chesterfield, MO | |
| Oct 24, 12:45 PM CDT | Thunderstorm Wind 55 E | Eureka, MO | |
| Oct 24, 12:46 PM CDT | Hail 1 | Overland, MO | |
| Oct 24, 12:48 PM CDT | Hail 1 | Creve Coeur, MO | |
| Oct 24, 12:49 PM CDT | Hail 1 | Overland, MO | |
| Oct 24, 12:55 PM CDT | Hail 1.75 | Overland, MO | |
| Oct 24, 12:55 PM CDT | Hail 0.75 | Florissant, MO |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 24, 11:45 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 5.1 hours before the alert went out and 260 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
- 1102 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 597 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
045
WFUS53 KLSX 241703
TORSTL
MOC071-189-241800-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1203 PM CDT WED OCT 24 2001
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI
ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI
* UNTIL 100 PM CDT
* AT 1203 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH STRONG ROTATION OVER UNION...MOVING NORTHEAST AT
45 MPH.
* LOCATIONS IN THE PATH...
VILLA RIDGE
GRAY SUMMIT
PACIFIC
WILDWOOD
ELLISVILLE
BALLWIN
MANCHESTER
CLARKSON VALLEY
IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A BASEMENT
OFFERS THE BEST PROTECTION. IF A BASEMENT IS NOT AVAILABLE...MOVE TO
THE LOWEST FLOOR AND SEEK SHELTER IN A SMALL INTERIOR ROOM. STAY AWAY
FROM OUTSIDE WALLS AND WINDOWS. MOBILE HOMES SHOULD BE ABANDONED IN
FAVOR OF A MORE SUBSTANTIAL STRUCTURE. DO NOT TRY TO OUTRUN A TORNADO
IN A VEHICLE.
LAT...LON 3848 9118 3832 9110 3853 9041 3886 9029
3864 9071
$$
ELThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 7:38 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 67 min |
| Oct 23, 7:57 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 48 min |
| Oct 23, 8:15 PM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 30 min |
| Oct 23, 9:41 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 49 min |
| Oct 24, 10:44 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 61 min |
| Oct 24, 11:16 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 44 min |
| Oct 24, 11:28 AM CDT | Tornado Warning | LSX | Franklin, Gasconade | 32 min |
| Oct 24, 11:45 AM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 45 min |
| Oct 24, 12:12 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin | 48 min |
| Oct 24, 12:39 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 51 min |
| Oct 24, 12:50 PM CDT | Tornado Warning | LSX | Jefferson | 40 min |
| Oct 24, 12:52 PM CDT | Severe Thunderstorm Warning | LSX | City of Saint Louis | 53 min |
| Oct 24, 1:41 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois, Washington | 49 min |
| Oct 24, 1:54 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 51 min |
| Oct 24, 1:57 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 48 min |
| Oct 24, 2:11 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 49 min |
Nearby
Tornado Warnings in Missouri, 2001Every tornado warning in 2001Tornadoes in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.