Alert archive / Missouri / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 28, NWS Kansas City, MO

April 17, 1991Cass County, Jackson County, Missouri; Johnson County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 17, 1991, 6:00 PM CDT for Cass County, Jackson County, Missouri; Johnson County, Kansas. It was in force for 60 min. 3 reports 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
Apr 17, 1991, 6:00 PM CDT (23:00 UTC)
Expired
Apr 17, 1991, 7:00 PM CDT
In force
60 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Johnson County, KS, Cass County, MO, Jackson County, MO

What was reported inside it

TimeReportWhereRemark
Apr 17, 6:16 PM CDTHail 0.75Jackson, MO
Apr 17, 6:20 PM CDTHail 0.75Johnson, KS
Apr 17, 6:22 PM CDTHail 0.75Cass, 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, 11.0 hours before the alert went out and 99 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 1991-04-17Temperature 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, Topeka, KS at 12:00Z on 1991-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.193958Sfc1 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
NaN m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

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
Apr 17, 5:13 PM CDTSevere Thunderstorm WarningEAXJackson47 min
Apr 17, 6:12 PM CDTFlash Flood WarningEAXJohnson3 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 1991Severe Thunderstorm Warnings in Kansas, 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.