Alert archive / Missouri / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 49, NWS St. Louis, MO

May 13, 1995Lewis County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 13, 1995, 4:33 PM CDT for Lewis County, Missouri. It was in force for 17 min.

The area

The counties it named.

The facts

Issued
May 13, 1995, 4:33 PM CDT (21:33 UTC)
Expired
May 13, 1995, 4:50 PM CDT
In force
17 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Lewis County, MO

The radar

The St Louis radar (KLSX), 179 km from the middle of the area, began a volume at 21:34 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, 9.6 hours before the alert went out and 198 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, Davenport, at 12:00Z on 1995-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, Davenport, at 12:00Z on 1995-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 346 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
501 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
346 m²/s²
0-3 km storm-relative helicity
430 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 132134
SVRSTL
ILC001-MOC111-132215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
433 PM CDT SAT MAY 13 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST CENTRAL ILLINOIS
 
   ...NORTHWESTERN ADAMS COUNTY
 
 
IN NORTHEAST MISSOURI
 
   ...NORTHEASTERN LEWIS COUNTY
 
AT 430 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR HAS DETECTED A SEVERE
THUNDERSTORM 2 MILES NORTHWEST OF CANTON IN LEWIS COUNTY. THE STORM WAS
MOVING NORTHEAST AT 40 MPH. IT WILL BE MOVING INTO THE TOWNS OF MEYER
AND LIMA IN ADAMS COUNTY BY 500 PM.
 
 
S4EEK SHELTER IN A STURDY BUILDING. REMEMBER SEVERE THUNDERSTORMS
OFTEN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
 
GKS

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 7:07 PM CDTSevere Thunderstorm WarningLSXPhelps53 min
May 13, 10:33 AM CDTSevere Thunderstorm WarningLSXClark42 min
May 13, 2:51 PM CDTSevere Thunderstorm WarningLSXScotland54 min
May 13, 3:14 PM CDTSevere Thunderstorm WarningLSXClark46 min
May 13, 3:23 PM CDTTornado WarningLSXClark46 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1995Every severe thunderstorm warning in 1995

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.