Alert archive / Missouri / Tornado Warnings in 2002
Tornado Warning 15, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at May 7, 2002, 2:23 AM CDT for Saint Charles County, Missouri. It was in force for 52 min. 2 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
- May 7, 2002, 2:23 AM CDT (07:23 UTC)
- Expired
- May 7, 2002, 3:15 AM CDT
- In force
- 52 min
- Issued by
- NWS St. Louis, MO
- Area
- Counties, with a storm outline in the text
County Saint Charles County, MO
The radar
The St Louis radar (KLSX), 34 km from the middle of the area, began a volume at 07:26 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 |
|---|---|---|---|
| May 7, 2:26 AM CDT | Thunderstorm Wind 76 E | Portage Des Sioux, MO | |
| May 7, 2:48 AM CDT | Thunderstorm Wind 76 E | Orchard Farm, 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 |
|---|---|---|---|
| May 7, 12:45 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 7.4 hours before the alert went out and 207 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
- 854 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 913 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLSX 070723 TORSTL MOC183-070815- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 223 AM CDT TUE MAY 7 2002 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI * UNTIL 315 AM CDT * AT 223 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 8 MILES NORTHWEST OF ORCHARD FARMS. THE THUNDERSTORM WAS MOVING EAST AT 40 MPH...AND MAY PRODUCE A TORNADO AT ANY TIME * LOCATIONS IN THE PATH... ORCHARD FARMS PORTAGE DES SIOUX WEST ALTON IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW MOVE TO A BASEMENT...UNDERGROUND STORM SHELTER...OR AN INTERIOR ROOM OR HALLWAY ON THE LOWEST LEVEL OF A STURDY BUILDING. LAT...LON 3897 9052 3887 9058 3882 9012 3893 9028 CARNEY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 11:04 PM CDT | Severe Thunderstorm Warning | LSX | 41 min | |
| May 6, 11:34 PM CDT | Severe Thunderstorm Warning | LSX | 41 min | |
| May 6, 11:45 PM CDT | Severe Thunderstorm Warning | LSX | 45 min | |
| May 7, 12:11 AM CDT | Severe Thunderstorm Warning | LSX | 64 min | |
| May 7, 12:13 AM CDT | Tornado Warning | LSX | Audrain, Callaway | 62 min |
| May 7, 12:19 AM CDT | Severe Thunderstorm Warning | LSX | 41 min | |
| May 7, 12:38 AM CDT | Severe Thunderstorm Warning | LSX | 22 min | |
| May 7, 12:53 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway | 6 hr |
| May 7, 1:04 AM CDT | Severe Thunderstorm Warning | LSX | 41 min | |
| May 7, 1:47 AM CDT | Severe Thunderstorm Warning | LSX | 28 min | |
| May 7, 2:09 AM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery | 5 hr |
| May 7, 2:09 AM CDT | Tornado Warning | LSX | Lincoln | 51 min |
| May 7, 3:10 AM CDT | Severe Thunderstorm Warning | LSX | 60 min | |
| May 7, 3:11 AM CDT | Severe Thunderstorm Warning | LSX | 34 min | |
| May 7, 3:18 AM CDT | Severe Thunderstorm Warning | LSX | 27 min | |
| May 7, 3:27 AM CDT | Severe Thunderstorm Warning | LSX | 33 min | |
| May 7, 3:38 AM CDT | Severe Thunderstorm Warning | LSX | 52 min | |
| May 7, 3:46 AM CDT | Severe Thunderstorm Warning | LSX | 44 min | |
| May 7, 3:49 AM CDT | Severe Thunderstorm Warning | LSX | 41 min | |
| May 7, 3:58 AM CDT | Flash Flood Warning | LSX | Saint Charles, Warren | 6 hr |
| May 7, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | 43 min |
Nearby
Tornado Warnings in Missouri, 2002Every tornado warning in 2002Tornadoes in 2002
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.