Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 131, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 6, 1997, 3:52 PM CDT for Clark County, Knox County, Lewis County, Missouri. It was in force for 68 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
- Jul 6, 1997, 3:52 PM CDT (20:52 UTC)
- Expired
- Jul 6, 1997, 5:00 PM CDT
- In force
- 68 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Clark County, MO, Knox County, MO, Lewis County, MO
The radar
The Quad Cities radar (KDVN), 190 km from the middle of the area, began a volume at 20:51 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 nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.9 hours before the alert went out and 194 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
- 6 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 1119 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 1 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 062054 RRA SVRSTL MOC045-103-111-062200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 352 PM CDT SUN JUL 6 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST MISSOURI ...SOUTHERN CLARK COUNTY...EASTERN KNOX COUNTY...LEWIS COUNTY AT 345 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL NEAR COLONY AND MOVING TO THE EAST AT 15 TO 20 MPH. THE TOWNS OF COLONY...FAIRMONT AND WILLIAMSTOWN ARE IN THE PATH OF THIS STORM. THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL AND DEADLY LIGHT"NING. STAY INSIDE AND AWAY FROM WINDOWS.
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, Jul 6, 11:13 AM CDT, 4 hours 39 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>075-084-085-099-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1113 AM CDT SUN JUL 6 1997 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PARTS OF CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST ILLINOIS. SCATTERED SHOWERS AND THUNDERSTORMS WILL THREATEN THE AREA THIS AFTERNOON...GENERALLY ALONG AND NORTH OF A JEFFERSON CITY... UNION...NASHVILLE ILLINOIS LINE. HOWEVER...DUE TO THE LIMITED MOISTURE...AND LACK OF UPPER LEVEL SUPPORT...NO SEVERE WEATHER IS EXPECTED. SKYWARN ACTIVATION IS NOT ANTICIPATED AT THIS TIME. TRUETT
Special weather statement, Jul 6, 11:17 AM CDT, 4 hours 35 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>075-084-085-099-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1113 AM CDT SUN JUL 6 1997 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PARTS OF CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST ILLINOIS. SCATTERED SHOWERS AND THUNDERSTORMS WILL THREATEN THE AREA THIS AFTERNOON...GENERALLY ALONG AND NORTH OF A JEFFERSON CITY... UNION...NASHVILLE ILLINOIS LINE. HOWEVER...DUE TO THE LIMITED MOISTURE...AND LACK OF UPPER LEVEL SUPPORT...NO SEVERE WEATHER IS EXPECTED. SKYWARN ACTIVATION IS NOT ANTICIPATED AT THIS TIME. TRUETT
Special weather statement, Jul 6, 2:29 PM CDT, 1 hour 23 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>075-084-085-099-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 230 PM CDT SUN JUL 6 1997 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PARTS OF CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST ILLINOIS. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS THE REST OF THIS AFTERNOON...GENERALLY ALONG AND NORTH OF A PITTSFIELD ILLINOIS...PARIS MISSOURI LINE. A STALLED FRONTAL BOUNDARY HAS CAUSED THUNDERSTORMS TO REDEVELOP ACROSS NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS THIS AFTERNOON. IT NOW APPEARS THAT THERE MAY BE ENOUGH INSTABILITY THAT SOME OF THESE STORMS WILL PRODUCE HAIL AND GUSTY WINDS. SPOTTER ACTIVATION MAY BECOME NECESSARY IN A FEW LOCATIONS. * OVER CENTRAL AND EAST CENTRAL MISSOURI...AND SOUTHWEST ILLINOIS... ANY STORMS THAT REDEVELOP THIS AFTERNOON ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. TRUETT
Special weather statement, Jul 6, 2:30 PM CDT, 1 hour 22 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>075-084-085-099-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 230 PM CDT SUN JUL 6 1997 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PARTS OF CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST ILLINOIS. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS THE REST OF THIS AFTERNOON...GENERALLY ALONG AND NORTH OF A PITTSFIELD ILLINOIS...PARIS MISSOURI LINE. A STALLED FRONTAL BOUNDARY HAS CAUSED THUNDERSTORMS TO REDEVELOP ACROSS NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS THIS AFTERNOON. IT NOW APPEARS THAT THERE MAY BE ENOUGH INSTABILITY THAT SOME OF THESE STORMS WILL PRODUCE HAIL AND GUSTY WINDS. SPOTTER ACTIVATION MAY BECOME NECESSARY IN A FEW LOCATIONS. OVER CENTRAL AND EAST CENTRAL MISSOURI...AND SOUTHWEST ILLINOIS... ANY STORMS THAT REDEVELOP THIS AFTERNOON ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. TRUETT
Special weather statement, Jul 6, 3:50 PM CDT, 2 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>075-084-085-099-070615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 350 PM CDT SUN JUL 6 1997 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PARTS OF CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST ILLINOIS. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS THE REST OF THIS AFTERNOON AND INTO THE EARLY EVENING...GENERALLY ALONG AND NORTH OF A COLUMBIA...PITTSFIELD ILLINOIS LINE. A STALLED FRONTAL BOUNDARY HAS CAUSED THUNDERSTORMS TO REDEVELOP ACROSS NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS THIS AFTERNOON...AND THESE STORMS WILL LINGER INTO THE EARLY EVENING HOURS. THE SUNSHINE THIS AFTERNOON HAS PRODUCED ENOUGH INSTABILITY THAT SOME OF THESE STORMS MAY PRODUCE HAIL AND GUSTY WINDS. SPOTTER ACTIVATION MAY BECOME NECESSARY IN A FEW LOCATIONS. OVER EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS... ANY STORMS THAT REDEVELOP ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 29 min |
| Jul 6, 5:16 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 44 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1997Every severe thunderstorm warning in 1997
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.