Alert archive / Missouri / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 23, NWS St. Louis, MO

March 27, 1991Lincoln County, Saint Charles County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 1991, 6:49 AM CST for Lincoln County, Saint Charles County, Missouri. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Mar 27, 1991, 6:49 AM CST (12:49 UTC)
Expired
Mar 27, 1991, 7:30 AM CST
In force
41 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Lincoln County, MO, Saint Charles County, MO

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 0.8 hours before the alert went out and 277 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, Paducah/Barkley, KY at 12:00Z on 1991-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 204 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, Paducah/Barkley, KY at 12:00Z on 1991-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 318 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
204 J/kg
Mixed-layer CIN
-214 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
318 m²/s²
0-3 km storm-relative helicity
368 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 3:28 AM CSTSevere Thunderstorm WarningLSXAdair, Knox62 min
Mar 27, 3:52 AM CSTSevere Thunderstorm WarningLSXClark68 min
Mar 27, 3:52 AM CSTSevere Thunderstorm WarningLSXLewis56 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1991Every severe thunderstorm warning in 1991

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.