Alert archive / Kansas / Mesoscale Discussions in 2018

Mesoscale Discussion 800

June 19, 20184 states

The Storm Prediction Center issued this mesoscale discussion at Jun 19, 2018, 10:41 PM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 19, 2018, 10:41 PM MDT (04:41 UTC)
Expired
Jun 20, 2018, 12:45 AM MDT
In force
2 hr
Issued by
the Storm Prediction Center
All 56 counties

Baca County, CO, Prowers County, CO, Barber County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Clark County, KS, Cloud County, KS, Comanche County, KS, Dickinson County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Geary County, KS, Grant County, KS, Gray County, KS, Hamilton County, KS, Harper County, KS, Harvey County, KS, Haskell County, KS, Hodgeman County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Meade County, KS, Mitchell County, KS, Morris County, KS, Morton County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Seward County, KS, Stafford County, KS, Stanton County, KS, Stevens County, KS, Sumner County, KS, Alfalfa County, OK, Beaver County, OK, Ellis County, OK, Harper County, OK, Texas County, OK, Woods County, OK, Woodward County, OK, Hansford County, TX, Lipscomb County, TX, Ochiltree County, TX

The radar

The Dodge City radar (KDDC), 31 km from the middle of the area, began a volume at 04:43 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, 4.7 hours before the alert went out and 24 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 2018-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2016 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 2018-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
2016 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1695 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
200 m²/s²
Significant tornado parameter
0.3
Supercell composite
5.9

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
Jun 19, 6:21 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Broomfield, Cheyenne and 20 more54 min
Jun 19, 7:01 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Crowley, Kiowa, Otero, Prowers and 1 more5 hr
Jun 19, 8:33 PM MDTMesoscale DiscussionSPCProwers117 min
Jun 19, 9:07 PM MDTSevere Thunderstorm WatchSPCBarber, Barton, Chase, Clark, Comanche, Dickinson and 26 more5 hr
Jun 19, 6:40 PM MDTMesoscale DiscussionSPCBeaver, Ellis, Roger Mills, Texas2 hr
Jun 20, 1:12 AM MDTMesoscale DiscussionSPCBeckham, Ellis, Roger Mills2 hr

Nearby

Mesoscale Discussions in Kansas, 2018Mesoscale Discussions in Oklahoma, 2018Mesoscale Discussions in Texas, 2018Every mesoscale discussion in 2018

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.