Alert archive / Missouri / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 108, NWS St. Louis, MO

June 13, 1997Iron County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 13, 1997, 6:02 PM CDT for Iron County, Missouri. It was in force for 28 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, 6:02 PM CDT (23:02 UTC)
Expired
Jun 13, 1997, 6:30 PM CDT
In force
28 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Iron County, MO

The radar

The St Louis radar (KLSX), 133 km from the middle of the area, began a volume at 23:06 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

Springfield, MO (KSGF), launched 12:00Z, 11.0 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 1997-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1997-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -200 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
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

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 132304
SVRSTL
MOC093-132330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
602 PM CDT FRI JUN 13 1997
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST MISSOURI
 
   ...IRON COUNTY
 
AT 600 PM...RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHEAST
OF BIXBY. THE STORM WAS MOVING EAST AT 20 MPH.
 
THE STORM WILL MOVE THROUGH THE TOWNS OF BELLEVIEW AND IRONTON
BY 630 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, 5:27 PM CDT, 35 minutes before
MOZ075-074-132245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
525 PM CDT FRI JUN 13 1997

...TORNADO WARNING CONTINUES FOR ST FRANCOIS COUNTY UNTIL 545 PM...

RADAR INDICATED A SEVERE STORM NEAR FARMINGTON AND WAS MOVING
EAST AT 20 MPH. NUMEROUS REPORTS OF FUNNEL CLOUDS HAVE BEEN RECEIVED...
BUT NO CONFIRM TORNADO TOUCHDOWN YET.

THE STORM MAY STILL PRODUCE A TORNADO AT ANYTIME. PEOPLE IN THE
PATH OF THIS STORM SHOULD TAKE COVER IMMEDIATELY!

&
ECKBERG

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 8:49 PM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway41 min
Jun 13, 3:55 PM CDTSevere Thunderstorm WarningLSXCrawford50 min
Jun 13, 3:58 PM CDTSevere Thunderstorm WarningLSXWashington47 min
Jun 13, 4:48 PM CDTSevere Thunderstorm WarningLSXSaint Francois, Washington42 min
Jun 13, 5:00 PM CDTTornado WarningLSXSaint Francois45 min
Jun 13, 5:21 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve54 min
Jun 13, 6:39 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Francois51 min
Jun 13, 6:53 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve52 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.