Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 107, NWS St. Louis, MO

June 13, 1997Sainte Genevieve County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 13, 1997, 5:21 PM CDT for Sainte Genevieve County, Missouri. It was in force for 54 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 13, 1997, 5:21 PM CDT (22:21 UTC)
Expired: Jun 13, 1997, 6:15 PM CDT
In force: 54 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Sainte Genevieve County, MO

The radar

The St Louis radar (KLSX), 99 km from the middle of the area, began a volume at 22:24 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

Lincoln, IL (KILX), launched 12:00Z, 10.4 hours before the alert went out and 286 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1143 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSTL 132223
SVRSTL
MOC186-132315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CDT FRI JUN 13 1997
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...ST. GENEVIEVE COUNTY
 
AT 515 PM...RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF
FARMINGTON. THE STORM WAS MOVING EAST AT 20 MPH.
 
THE STORM WILL MOVE THROUGH THE TOWNS OF WEINGARTEN AND COFFMAN BY
6 PM.
 
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, 11:23 AM CDT, 5 hours 58 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, 3:58 PM CDT	Severe Thunderstorm Warning	LSX	Washington	47 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, 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, 1997 Every 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.