Alert archive / Missouri / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 44, NWS Kansas City, MO

September 18, 1986Jackson County, Missouri; Johnson County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Sep 18, 1986, 12:32 AM CDT for Jackson County, Missouri; Johnson County, Kansas. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Sep 18, 1986, 12:32 AM CDT (05:32 UTC)
Expired
Sep 18, 1986, 1:00 AM CDT
In force
28 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Johnson County, KS, Jackson County, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 5.5 hours before the alert went out and 91 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 00:00Z on 1986-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2410 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 00:00Z on 1986-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
2410 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
880 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
105 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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
Sep 18, 2:02 AM CDTFlash Flood WarningEAXJackson118 min
Sep 18, 2:47 AM CDTFlash Flood WarningEAXCooper, Moniteau, Morgan, Pettis4 hr
Sep 18, 3:40 AM CDTFlash Flood WarningEAXJackson4 hr
Sep 18, 3:15 AM CDTFlash Flood WarningEAXJohnson8 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 1986Severe Thunderstorm Warnings in Kansas, 1986Every severe thunderstorm warning in 1986

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.