Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 279, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 28, 1998, 11:40 PM CDT for Knox County, Scotland County, Missouri. It was in force for 45 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 28, 1998, 11:40 PM CDT (04:40 UTC)
- Expired
- Jun 29, 1998, 12:25 AM CDT
- In force
- 45 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Knox County, MO, Scotland County, MO
The radar
The Quad Cities radar (KDVN), 197 km from the middle of the area, began a volume at 04:39 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 28, 7:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.7 hours before the alert went out and 202 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
- 324 J/kg
- Mixed-layer CIN
- -307 J/kg
- Mixed-layer LCL
- 1660 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 290440 RRA SVRSTL MOC103-199-290525- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1140 PM CDT SUN JUN 28 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN KNOX COUNTY IN NORTHEASTERN MISSOURI SOUTHERN SCOTLAND COUNTY IN NORTHEASTERN MISSOURI * UNTIL 1225 AM CDT * AT 1138 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 TO 7 MILES NORTHWEST OF EDNIA MISSOURI... MOVING NORTHEAST AT 20 MPH. * LOCATIONS THAT WILL BE AFFECTED... EDINA BARING GREENSBURG BIBLE GROVE RUTLEDGE SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60 MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. A TORNADO WATCH I(S ALSO IN EFFECT FOR THE WARNED AREA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. JPK/RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 7:40 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 45 min |
| Jun 29, 12:05 AM CDT | Flash Flood Warning | LSX | Lewis | 4 hr |
| Jun 29, 5:17 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 48 min |
| Jun 29, 5:34 AM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 46 min |
| Jun 29, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Clark | 48 min |
| Jun 29, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Scotland | 47 min |
| Jun 29, 4:11 PM CDT | Flash Flood Warning | LSX | Clark, Scotland | 3 hr |
| Jun 29, 4:30 PM CDT | Severe Thunderstorm Warning | LSX | Clark, Knox, Lewis, Scotland | 65 min |
| Jun 29, 4:51 PM CDT | Flash Flood Warning | LSX | Lewis | 3 hr |
| Jun 29, 6:34 PM CDT | Severe Thunderstorm Warning | LSX | Clark | 51 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.