Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 105, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 13, 1997, 3:58 PM CDT for Washington County, Missouri. It was in force for 47 min. 2 reports 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 13, 1997, 3:58 PM CDT (20:58 UTC)
- Expired
- Jun 13, 1997, 4:45 PM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Washington County, MO
The radar
The St Louis radar (KLSX), 84 km from the middle of the area, began a volume at 20:58 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 13, 4:40 PM CDT | Thunderstorm Wind 56 | Belgrade, MO | County sheriff reported trees down on the east side of Belgrade. |
| Jun 13, 4:50 PM CDT | Thunderstorm Wind 56 | Caledonia, MO | County sheriff reported trees down on county road 627. |
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 nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 9.0 hours before the alert went out and 284 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
- 39 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 509 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -200 m²/s²
- 0-3 km storm-relative helicity
- -156 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
126 WUUS1 KSTL 132059 RRA SVRSTL MOC221-132145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 358 PM CDT FRI JUN 13 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL MISSOURI ...WASHINGTON COUNTY AT 400 PM...RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN OF COURTOIS. THE STORM WAS MOVING TO THE NORTHEAST AT 25 MPH. TOWNS IN THE PATH OF THE STORM ARE SHIRLEY AND POTOSI. THIS IS A DANGEROUS STORM BE PREPARED FOR DAMAGING WINDS...HAIL AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS. ECKBERG
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 13, 11:20 AM CDT, 4 hours 38 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>075-084-085-099-141000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1120 AM CDT FRI JUN 13 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. THE LINE OF STRONG THUNDERSTORMS MOVING THROUGH PARTS OF SOUTHWEST ILLINOIS WILL CONTINUE TO PRODUCE STRONG WIND GUSTS AROUND 40 MPH. THE LINE OF STORMS SHOULD MOVE OUT OF THE COUNTY WARNING AREA BY EARLY AFTERNOON. THE STORMS IN THIS LINE SHOULD REMAIN BELOW SEVERE LIMITS. ADDITIONAL THUNDERSTORM DEVELOPMENT IS EXPECTED LATE THIS AFTERNOON. HOWEVER...THESE STORMS ARE ALSO EXPECTED TO STAY BELOW SEVERE LIMITS. SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. FERRY
Special weather statement, Jun 13, 11:23 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>075-084-085-099-141000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1120 AM CDT FRI JUN 13 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. THE LINE OF STRONG THUNDERSTORMS MOVING THROUGH PARTS OF SOUTHWEST ILLINOIS WILL CONTINUE TO PRODUCE STRONG WIND GUSTS AROUND 40 MPH. THE LINE OF STORMS SHOULD MOVE OUT OF THE COUNTY WARNING AREA BY EARLY AFTERNOON. THE STORMS IN THIS LINE SHOULD REMAIN BELOW| SEVERE LIMITS. ADDITIONAL THUNDERSTORM DEVELOPMENT IS EXPECTED LATE THIS AFTERNOON. HOWEVER...THESE STORMS ARE ALSO EXPECTED TO STAY BELOW SEVERE LIMITS. SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. FERRY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 8:49 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway | 41 min |
| Jun 13, 3:55 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 50 min |
| Jun 13, 4:48 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois, Washington | 42 min |
| Jun 13, 5:00 PM CDT | Tornado Warning | LSX | Saint Francois | 45 min |
| Jun 13, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 54 min |
| Jun 13, 6:02 PM CDT | Severe Thunderstorm Warning | LSX | Iron | 28 min |
| Jun 13, 6:39 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Francois | 51 min |
| Jun 13, 6:53 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 52 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.