Alert archive / Missouri / Tornado Warnings in 1998
Tornado Warning 93, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 29, 1998, 7:39 PM CDT for Shelby County, Missouri. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 29, 1998, 7:39 PM CDT (00:39 UTC)
- Expired
- Jun 29, 1998, 8:25 PM CDT
- In force
- 46 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Shelby County, MO
The radar
The St Louis radar (KLSX), 171 km from the middle of the area, began a volume at 00:42 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 |
|---|---|---|---|
| Jun 29, 7:45 PM CDT | Thunderstorm Wind 58 | Shelbyville, 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 |
|---|---|---|---|
| Jun 29, 4:15 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2291 m above ground
- 0-6 km bulk shear
- 122 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 358 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
532 WFUS1 KSTL 300040 RRA TORSTL MOC205-300125- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 739 PM CDT MON JUN 29 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... NORTHERN SHELBY COUNTY IN NORTHEASTERN MISSOURI * UNTIL 825 PM CDT * AT 736 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 2 MILES NORTHWEST OF LEONARD... MOVING EAST AT 30 MPH. * LOCATIONS IN THE PATH... LEONARD SHELBYVILLE BETHEL IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A BASEMENT OFFERS THE BEST PROTECTION. IF 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 RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 7:17 PM CDT | Tornado Warning | LSX | Knox | 48 min |
| Jun 29, 7:31 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 49 min |
| Jun 29, 7:52 PM CDT | Tornado Warning | LSX | Monroe | 33 min |
| Jun 29, 8:06 PM CDT | Tornado Warning | LSX | Audrain | 49 min |
| Jun 29, 8:33 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 47 min |
| Jun 29, 8:42 PM CDT | Tornado Warning | LSX | Montgomery | 48 min |
| Jun 29, 9:08 PM CDT | Tornado Warning | LSX | Warren | 47 min |
| Jun 29, 9:15 PM CDT | Flash Flood Warning | LSX | Montgomery, Warren | 4 hr |
| Jun 29, 9:15 PM CDT | Flash Flood Warning | LSX | Audrain, Monroe, Shelby | 4 hr |
| Jun 29, 10:01 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 44 min |
| Jun 29, 10:31 PM CDT | Flash Flood Warning | LSX | Callaway, Gasconade | 3 hr |
| Jun 29, 10:31 PM CDT | Flash Flood Warning | LSX | Boone | 3 hr |
Nearby
Tornado Warnings in Missouri, 1998Every tornado warning in 1998Tornadoes in 1998
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.