Alert archive / Missouri / Tornado Warnings in 1993

Tornado Warning 2, NWS St. Louis, MO

June 30, 1993Lincoln County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 30, 1993, 5:24 PM CDT for Lincoln County, Missouri. It was in force for 66 min.

The area

The counties it named.

The facts

Issued: Jun 30, 1993, 5:24 PM CDT (22:24 UTC)
Expired: Jun 30, 1993, 6:30 PM CDT
In force: 66 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Lincoln County, MO

The radar

The St Louis radar (KLSX), 47 km from the middle of the area, began a volume at 22:28 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

Paducah/Barkley, KY (KPAH), launched 12:00Z, 10.4 hours before the alert went out and 297 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: 1360 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 785 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 239 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 302227
TORSTL
MOC113-163-302330-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
524 PM CDT WED JUN 30 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  630 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSOURI
 
   ...NORTHERN LINCOLN COUNTY...SOUTHERN PIKE COUNTY
 
AT 523 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE
TORNADO NEAR FARMER...OR ABOUT 30 MILES SOUTH OF HANNIBAL. THIS STORM
WAS MOVING TO THE SOUTHEAST AT 15 MPH.
 
IF YOU LIVE IN THE TOWNS OF FARMER...ASHLEY...AND NEW HARTFORD SEEK
SHELTER IMMEDIATELY!  THE TOWNS OF WHITESIDE AND LOUISVILLE
ARE ALSO IN THE PATH OF THIS STORM AND SHOULD BE EFFECTED
BETWEEN 545 AND 600 PM.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOlM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 4:20 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson	40 min
Jun 30, 4:50 AM CDT	Severe Thunderstorm Warning	LSX	Washington	40 min
Jun 30, 5:23 AM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	52 min
Jun 30, 3:17 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Shelby	43 min
Jun 30, 3:51 PM CDT	Severe Thunderstorm Warning	LSX	Ralls	54 min
Jun 30, 4:13 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	32 min
Jun 30, 4:55 PM CDT	Severe Thunderstorm Warning	LSX	Pike	50 min
Jun 30, 5:24 PM CDT	Tornado Warning	LSX	Pike	43 min
Jun 30, 6:25 PM CDT	Tornado Warning	LSX	Lincoln	38 min

Nearby

Tornado Warnings in Missouri, 1993 Every tornado warning in 1993 Tornadoes in 1993

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.