Alert archive / Missouri / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 151, NWS St. Louis, MO

May 27, 1996Knox County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 27, 1996, 6:17 PM CDT for Knox County, Missouri. It was in force for 43 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
May 27, 1996, 6:17 PM CDT (23:17 UTC)
Expired
May 27, 1996, 7:00 PM CDT
In force
43 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Knox County, MO

The radar

The St Louis radar (KLSX), 203 km from the middle of the area, began a volume at 23:16 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, 11.3 hours before the alert went out and 216 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 1996-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1996-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
500 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
216 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 272319
SVRSTL
MOC103-280000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
617 PM CDT MON MAY 27 1996
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...KNOX COUNTY
 
AT 616 PM...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM NEAR NOVELTY.
THE STORM WAS MOVING NORTHEAST AT 30 MPH...AND WILL BE AFFECTING THE
TOWNS OF NOVELTY...EDINA...AND KNOX CITY.
 
REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
IF OUTDOORS...SEEK INSIDE SHELTER IMMEDIATELY. STAY AWAY FROM
WINDOWS.
 
IN ADDITION...THE HEAVY RAINS WITH THIS STORM MAY CAUSE ADDITIONAL
FLOODING PROBLEMS IN LOW LYING AND FLOOD PRONE AREAS.
 
TRUETT/GKS

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 12:31 AM CDTSevere Thunderstorm WarningLSXMoniteau44 min
May 27, 12:41 AM CDTSevere Thunderstorm WarningLSXBoone64 min
May 27, 12:53 AM CDTTornado WarningLSXBoone52 min
May 27, 12:59 AM CDTSevere Thunderstorm WarningLSXAudrain, Monroe46 min
May 27, 1:15 AM CDTSevere Thunderstorm WarningLSXCallaway30 min
May 27, 1:41 AM CDTTornado WarningLSXCallaway34 min
May 27, 1:46 AM CDTSevere Thunderstorm WarningLSXAudrain, Ralls29 min
May 27, 1:58 AM CDTSevere Thunderstorm WarningLSXMontgomery32 min
May 27, 2:07 AM CDTSevere Thunderstorm WarningLSXPike53 min
May 27, 2:44 AM CDTSevere Thunderstorm WarningLSXLincoln46 min
May 27, 4:39 AM CDTSevere Thunderstorm WarningLSXJefferson51 min
May 27, 5:45 PM CDTSevere Thunderstorm WarningLSXCrawford45 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1996Every severe thunderstorm warning in 1996

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.