Alert archive / Missouri / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 84, NWS St. Louis, MO

May 3, 1996Knox County, Lewis County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 3, 1996, 8:57 PM CDT for Knox County, Lewis County, Missouri. It was in force for 48 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 3, 1996, 8:57 PM CDT (01:57 UTC)
Expired
May 3, 1996, 9:45 PM CDT
In force
48 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Knox County, MO, Lewis County, MO

The radar

The St Louis radar (KLSX), 190 km from the middle of the area, began a volume at 02:00 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 00:00Z, 2.0 hours before the alert went out and 207 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 00:00Z on 1996-05-04Temperature 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 00:00Z on 1996-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939587897Sfc1 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
1392 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
416 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 040159
SVRSTL
MOC103-111-040245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
857 PM CDT FRI MAY 3 1996
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST MISSOURI
 
   ...SOUTHEASTERN KNOX COUNTY...SOUTHERN HALF OF LEWIS COUNTY
 
AT 856 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS DETECTING A
SEVERE THUNDERSTORM JUST EAST OF NOVELTY IN SOUTHERN KNOX COUNTY.
THE STORM WAS MOVING EAST AT 35 MPH. TOWNS IN THE PATH ARE NEWARK...LA
BELLE...MONTICELLO AND EWING.
 
THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL
AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS.
 
GKS/TRUETT

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, May 3, 7:11 PM CDT, 1 hour 46 minutes before
ILZ102-MOZ048-049-057>059-062-065-069>076-081>087-092-096>100-105>
112-114-040100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
702 PM CDT FRI MAY 3 1996

...TORNADO WATCH FOR SOUTH CENTRAL AND SOUTHEAST MISSOURI HAS BEEN
CANCELLED...

AT 700 PM...THE TORNADO WATCH IS NO LONGER IN EFFECT FOR SOUTH
CENTRAL AND SOUTHEAST MISSOURI.  THE IMMEDIATE THREAT FOR SEVERE
WEATHER APPEARS TO HAVE ENDED AT THIS TIME.

REMEMBER...A FLASH FLzOOD WATCH CONTINUES IN EFFECT FOR THIS AREA FOR
THE REST OF TONIGHT AS MORE THUNDERSTORMS ARE EXPECTED TO REDEVELOP
LATER TONIGHT WITH HEAVY RAINS POSSIBLE.

GKS

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 9:25 PM CDTSevere Thunderstorm WarningLSXMarion35 min
May 4, 7:15 AM CDTSevere Thunderstorm WarningLSXCallaway45 min
May 4, 8:15 AM CDTSevere Thunderstorm WarningLSXReynolds45 min
May 4, 9:30 AM CDTSevere Thunderstorm WarningLSXReynolds15 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.