Alert archive / Kansas / Mesoscale Discussions in 2019

Mesoscale Discussion 1998

September 21, 201926 counties in Kansas; Atchison County, Missouri; 10 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Sep 21, 2019, 7:25 PM CDT for 26 counties in Kansas; Atchison County, Missouri; 10 counties in Nebraska. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Sep 21, 2019, 7:25 PM CDT (00:25 UTC)
Expired
Sep 21, 2019, 9:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 37 counties

Barton County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Gray County, KS, Hodgeman County, KS, Jewell County, KS, Lincoln County, KS, Marshall County, KS, Mitchell County, KS, Nemaha County, KS, Ness County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Stafford County, KS, Washington County, KS, Atchison County, MO, Fillmore County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nemaha County, NE, Nuckolls County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Thayer County, NE

The radar

The Grand Island radar (KUEX), 161 km from the middle of the area, began a volume at 00:24 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

Dodge City, (KDDC), launched 00:00Z, 0.4 hours before the alert went out and 165 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, Dodge City, at 00:00Z on 2019-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1644 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, Dodge City, at 00:00Z on 2019-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
1644 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1801 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.4

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 21, 10:32 PM CDTMesoscale DiscussionSPCClay, Cloud, Ellis, Ellsworth, Gove, Lane and 14 more118 min
Sep 21, 7:54 PM CDTMesoscale DiscussionSPCAtchison, Nodaway2 hr

Nearby

Mesoscale Discussions in Kansas, 2019Mesoscale Discussions in Nebraska, 2019Mesoscale Discussions in Missouri, 2019Every mesoscale discussion in 2019

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.