Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 217, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 14, 1998, 2:18 PM CDT for Knox County, Missouri. It was in force for 32 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, 2:18 PM CDT (19:18 UTC)
- Expired
- Jun 14, 1998, 2:50 PM CDT
- In force
- 32 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Knox County, MO
The radar
The St Louis radar (KLSX), 203 km from the middle of the area, began a volume at 19:17 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, 2:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.3 hours before the alert went out and 216 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
- 8 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 141918 RRA SVRSTL MOC103-141950- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 218 PM CDT SUN JUN 14 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... KNOX COUNTY IN NORTHEASTERN MISSOURI * UNTIL 250 PM CDT * AT AT 217 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF EDINA... MOVING NORTHEAST AT 20 MPH. * LOCATIONS THAT WILL BE AFFECTED... EDINA COLONY THIS STORM HAS A HISTORY OF 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 THlUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. AMS/DF
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 14, 9:30 AM CDT, 4 hours 48 minutes before
MOZ072>075-084-085-099-141730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 930 AM CDT SUN JUN 14 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF SOUTHEAST MISSOURI... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN MISSOURI...CRAWFORD...WASHINGTON...ST FRANCOIS...STE GENEVIEVE... REYNOLDS...IRON...AND MADISON SCATTERED THUNDERSTORMS ARE NOT EXPECTED ACROSS THE REGION INTO THE EARLY AFTERNOON...THEREFORE THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. TPS
Special weather statement, Jun 14, 9:30 AM CDT, 4 hours 48 minutes before
MOZ072>075-084-085-099-141730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 930 AM CDT SUN JUN 14 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF SOUTHEAST MISSOURI... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN MISSOURI...CRAWFORD...WASHINGTON...ST FRANCOIS...STE GENEVIEVE... REYNOLDS...IRON...AND MADISON SCATTERED THUNDERSTORMS ARE NOT EXPECTED ACROSS THE REGION INTO THE EARLY AFTERNOON...THEREFORE THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED. TPS
Special weather statement, Jun 14, 10:20 AM CDT, 3 hours 58 minutes before
ILZ060-064-065-069-070-074-079-141715- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1020 AM CDT SUN JUN 14 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF SOUTHWEST ILLINOIS... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN ILLINOIS...MONTGOMERY...BOND...CLINTON...WASHINGTON...RANDOLPH... FAYETTE...AND MARION ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION INTO THE EARLY AFTERNOON...BUT THE THREAT OF SEVERE WEATHER HAS DIMINISHED AND NO MORE SEVERE WEATHER IS EXPECTED TPS
Special weather statement, Jun 14, 10:20 AM CDT, 3 hours 58 minutes before
ILZ060-064-065-069-070-074-079-141715- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1020 AM CDT SUN JUN 14 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF SOUTHWEST ILLINOIS... THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN ILLINOIS...MONTGOMERY...BOND...CLINTON...WASHINGTON...RANDOLPH... FAYETTE...AND MARION ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION INTO THE EARLY AFTERNOON...BUT THE THREAT OF SEVERE WEATHER HAS DIMINISHED AND NO MORE SEVERE WEATHER IS EXPECTED TPS
Special weather statement, Jun 14, 11:45 AM CDT, 2 hours 33 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026- 027-034>036-041-042-047>052-059>065-072>075-084-085-099-150200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1145 AM CDT SUN JUN 14 1998 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PORTIONS OF NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. AN INTENSE LOW PRESSURE SYSTEM WAS LOCATED OVER NORTHWEST MISSOURI EARLY THIS AFTERNOON. VERY UNSTABLE AND MOIST AIR WAS LOCATED OVER SOUTHEAST MISSOURI. AS THE LOW PRESSURE SYSTEM MOVES TO THE EAST THIS AFTERNOON AND EVENING...IT WILL PULL THIS MOIST AND UNSTABLE AIR NORTHWARD INTO EASTERN MISSOURI. THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTHWEST ILLINOIS AND EASTERN MISSOURI THIS AFTERNOON AND EVENING. THE AREA IS EAST AND SOUTH OF A LINE FROM CENTERVILLE IN REYNOLDS COUNTY TO TROY IN LINCOLN COUNTY TO EDWARDSVILLE IN MADISON COUNTY ILLINOIS TO NASHVILLE IN WASHINGTON COUNTY ILLINOIS. THIS AREA INCLUDES THE ENTIRE ST LOUIS METROPOLITAN AREA. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL AND NORTHEAST MISSOURI. EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD STAY INFORMED ON WEATHER DEVELOPMENTS AS SKYWARN ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING. TPS
Special weather statement, Jun 14, 11:45 AM CDT, 2 hours 33 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026- 027-034>036-041-042-047>052-059>065-072>075-084-085-099-150200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1145 AM CDT SUN JUN 14 1998 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PORTIONS OF NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. AN INTENSE LOW PRESSURE SYSTEM WAS LOCATED OVER NORTHWEST MISSOURI EARLY THIS AFTERNOON. VERY UNSTABLE AND MOIST AIR WAS LOCATED OVER SOUTHEAST MISSOURI. AS THE LOW PRESSURE SYSTEM MOVES TO THE EAST THIS AFTERNOON AND EVENING...IT WILL PULL THIS MOIST AND UNSTABLE AIR NORTHWARD INTO EASTERN MISSOURI. THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTHWEST ILLINOIS AND EASTERN MISSOURI THIS AFTERNOON AND EVENING. THE AREA IS EAST AND SOUTH OF A LINE FROM CENTERVILLE IN REYNOLDS COUNTY TO TROY IN LINCOLN COUNTY TO EDWARDSVILLE IN MADISON COUNTY ILLINOIS TO NASHVILLE IN WASHINGTON COUNTY ILLINOIS. THIS AREA INCLUDES THE ENTIRE ST LOUIS METROPOLITAN AREA. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL AND NORTHEAST MISSOURI. EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD STAY INFORMED ON WEATHER DEVELOPMENTS AS SKYWARN ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING. TPS
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, 4:46 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway | 49 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, 2:29 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.