Alert archive / Missouri / Tornado Warnings in 1999
Tornado Warning 34, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 1, 1999, 6:34 PM CDT for Crawford County, Missouri. It was in force for 51 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 1, 1999, 6:34 PM CDT (23:34 UTC)
- Expired
- Jun 1, 1999, 7:25 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Crawford County, MO
The radar
The St Louis radar (KLSX), 97 km from the middle of the area, began a volume at 23:38 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 1, 7:05 PM CDT | Tornado F0 | Steelville, 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 1, 3:45 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 1, 5:30 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 251 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
- 20 J/kg
- Mixed-layer CIN
- -321 J/kg
- Mixed-layer LCL
- 1581 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
818 WFUS1 KSTL 012335 RRA TORSTL MOC055-020025- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 634 PM CDT TUE JUN 1 1999 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... CRAWFORD COUNTY IN CENTRAL MISSOURI * UNTIL 725 PM CDT * AT 633 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO NEAR ST JAMES... MOVING MOVING EAST NORTHEAST AT 30 MPH. * LOCATIONS IN THE PATH... CUBA BOURBON ALL LOCATIONS ALONG I-44 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 FG/RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 3:17 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 48 min |
| Jun 1, 3:27 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 48 min |
| Jun 1, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 48 min |
| Jun 1, 3:44 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 51 min |
| Jun 1, 4:06 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 34 min |
| Jun 1, 4:12 PM CDT | Tornado Warning | LSX | Cole | 48 min |
| Jun 1, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 51 min |
| Jun 1, 4:24 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway | 51 min |
| Jun 1, 4:33 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 47 min |
| Jun 1, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 49 min |
| Jun 1, 5:11 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 49 min |
| Jun 1, 5:22 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 48 min |
| Jun 1, 5:48 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| Jun 1, 5:49 PM CDT | Tornado Warning | LSX | Lincoln | 51 min |
| Jun 1, 6:44 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 51 min |
| Jun 1, 6:50 PM CDT | Tornado Warning | LSX | Franklin | 50 min |
Nearby
Tornado Warnings in Missouri, 1999Every tornado warning in 1999Tornadoes in 1999
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.