Alert archive / Missouri / Tornado Warnings in 1998
Tornado Warning 58, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jun 12, 1998, 5:04 PM CDT for Lincoln County, Saint Charles County, Missouri; Calhoun County, Illinois. 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 12, 1998, 5:04 PM CDT (22:04 UTC)
- Expired
- Jun 12, 1998, 5:55 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Calhoun County, IL, Lincoln County, MO, Saint Charles County, MO
The radar
The St Louis radar (KLSX), 35 km from the middle of the area, began a volume at 22:04 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 |
|---|---|---|---|
| Jun 12, 5:20 PM CDT | Hail 1.75 | Brussels, IL |
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 12, 4:30 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.1 hours before the alert went out and 225 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
- 538 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 122204 RRA TORSTL ILC013-MOC113-183-122255- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 504 PM CDT FRI JUN 12 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN CALHOUN COUNTY IN SOUTHWESTERN ILLINOIS SOUTHERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI NORTHERN ST CHARLES COUNTY IN EAST CENTRAL MISSOURI * UNTIL 555 PM CDT * AT 503 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 2 MILES SOUTHWEST OF TROY... MOVING EAST AT 30 MPH. * LOCATIONS IN THE PATH... TROY BRUSSELS MOSCOW MILLS OLD MONROE ST PAUL THIS IS A DANGEROUS SITUATION! IF IN THE PATH...TAKE COVER NOW! MOVE TO A BASEMENT IF AVAILABLE. IF NOT...STAY ON THE LOWEST LEVEL AND GO TO A SMALL INTERIOR ROOM. MOBILE HOMES AND AUTOMOBILESHOULD BE ABANDONED IN FAVOR OF A STRONG STRUCTURE. AS A LAST RESORT... MOVE TO A DITCH OR CULVERT AND COVER YOUR HEAD. METZE/TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 3:58 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 47 min |
| Jun 12, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 33 min |
| Jun 12, 5:17 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 48 min |
| Jun 12, 5:36 PM CDT | Tornado Warning | LSX | Jefferson | 34 min |
| Jun 12, 5:42 PM CDT | Tornado Warning | LSX | Saint Louis, City of Saint Louis | 48 min |
| Jun 12, 6:00 PM CDT | Tornado Warning | LSX | Sainte Genevieve | 65 min |
| Jun 12, 6:00 PM CDT | Tornado Warning | LSX | Jefferson | 65 min |
| Jun 12, 3:58 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 47 min |
| Jun 12, 4:42 PM CDT | Tornado Warning | LSX | Macoupin | 48 min |
| Jun 12, 5:09 PM CDT | Tornado Warning | LSX | Bond, Madison | 51 min |
| Jun 12, 5:12 PM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 63 min |
| Jun 12, 5:47 PM CDT | Tornado Warning | LSX | Fayette, Marion | 48 min |
| Jun 12, 6:18 PM CDT | Tornado Warning | LSX | Clinton, Saint Clair | 47 min |
| Jun 12, 6:36 PM CDT | Tornado Warning | LSX | Marion | 34 min |
Nearby
Tornado Warnings in Missouri, 1998Tornado Warnings in Illinois, 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.