Alert archive / Missouri / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 2, NWS Kansas City, MO

March 12, 1991Boone County, Randolph County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Mar 12, 1991, 12:45 PM CST for Boone County, Randolph County, Missouri. It was in force for 45 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 12, 1991, 12:45 PM CST (18:45 UTC)
Expired
Mar 12, 1991, 1:30 PM CST
In force
45 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Boone County, MO, Randolph County, MO

What was reported inside it

TimeReportWhereRemark
Mar 12, 1:00 PM CSTThunderstorm Wind 50Boone, MO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 6.8 hours before the alert went out and 280 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, Topeka, KS at 12:00Z on 1991-03-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 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, Topeka, KS at 12:00Z on 1991-03-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.1939587897117Sfc1 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
576 J/kg
Mixed-layer CIN
-245 J/kg
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
282 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 12:45 PM CSTSevere Thunderstorm WarningEAXCole, Miller45 min
Mar 12, 3:04 PM CSTSevere Thunderstorm WarningEAXBoone26 min
Mar 12, 3:50 PM CSTSevere Thunderstorm WarningEAXCallaway40 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.