Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 207, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 14, 1998, 4:46 AM CDT for Audrain County, Boone County, Callaway County, Missouri. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 14, 1998, 4:46 AM CDT (09:46 UTC)
- Expired
- Jun 14, 1998, 5:35 AM CDT
- In force
- 49 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Audrain County, MO, Boone County, MO, Callaway County, MO
The radar
The St Louis radar (KLSX), 121 km from the middle of the area, began a volume at 09:49 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.
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 14, 1:15 AM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 9.8 hours before the alert went out and 282 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
- 1382 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 1700 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 28.2
The text
As transmitted, in the capitals the NWS used until 2016.
935 WUUS1 KSTL 140945 RRA SVRSTL MOC007-019-027-141035- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 446 AM CDT SUN JUN 14 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... AUDRAIN COUNTY IN CENTRAL MISSOURI BOONE COUNTY IN CENTRAL MISSOURI NORTHERN CALLAWAY COUNTY IN CENTRAL MISSOURI * UNTIL 535 AM CDT * AT 444 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM NEAR CENTRALIA TO JUST WEST OF MIDWAY... MOVING EAST AT 35 MPH. * LOCATIONS THAT WILL BE AFFECTED... COLUMBIA CENTRALIA MEXICO HALLSVILLE AUXVASSE KINGDOM CITY THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING WINDS. MOVE QUICKLY TO A STURDY BUILDING AND STAY AWAY FROM DOORS AND WINDOWS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. GKS/TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 3:33 AM CDT | Severe Thunderstorm Warning | LSX | Monroe | 32 min |
| Jun 14, 5:59 AM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 31 min |
| Jun 14, 6:17 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Warren | 48 min |
| Jun 14, 7:13 AM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 47 min |
| Jun 14, 2:15 PM CDT | Tornado Warning | LSX | Audrain | 15 min |
| Jun 14, 2:18 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 32 min |
| Jun 14, 2:29 PM CDT | Tornado Warning | LSX | Pike | 36 min |
| Jun 14, 2:39 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 46 min |
| Jun 14, 2:57 PM CDT | Tornado Warning | LSX | Scotland | 33 min |
| Jun 14, 2:57 PM CDT | Tornado Warning | LSX | Clark, Scotland | 38 min |
| Jun 14, 3:05 PM CDT | Tornado Warning | LSX | Pike | 35 min |
| Jun 14, 3:29 PM CDT | Tornado Warning | LSX | Clark | 46 min |
| Jun 14, 3:35 PM CDT | Tornado Warning | LSX | Pike | 65 min |
| Jun 14, 3:40 PM CDT | Tornado Warning | LSX | Lewis | 50 min |
| Jun 14, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 52 min |
| Jun 14, 4:14 PM CDT | Tornado Warning | LSX | Clark | 31 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1998Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.