Alert archive / Kansas / Mesoscale Discussions in 2018

Mesoscale Discussion 827

June 22, 20184 counties in Colorado; 21 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2018, 2:46 PM MDT for 4 counties in Colorado; 21 counties in Kansas. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Jun 22, 2018, 2:46 PM MDT (20:46 UTC)
Expired
Jun 22, 2018, 4:15 PM MDT
In force
89 min
Issued by
the Storm Prediction Center
All 25 counties

Baca County, CO, Cheyenne County, CO, Kiowa County, CO, Prowers County, CO, Clark County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Scott County, KS, Seward County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS

The radar

The Goodland radar (KGLD), 126 km from the middle of the area, began a volume at 20:47 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 8.8 hours before the alert went out and 150 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 12:00Z on 2018-06-22Temperature 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, Dodge City, at 12:00Z on 2018-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939587897Sfc1 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
1793 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 22, 1:06 AM MDTMesoscale DiscussionSPCBaca84 min
Jun 22, 11:31 AM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Crowley, Elbert, Kiowa and 5 more89 min
Jun 22, 12:19 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 7 more6 hr
Jun 22, 4:14 PM MDTMesoscale DiscussionSPCBaca, Prowers2 hr
Jun 22, 3:31 PM MDTSevere Thunderstorm WatchSPCBarber, Clark, Comanche, Edwards, Ellis, Finney and 21 more5 hr
Jun 22, 5:22 PM MDTSevere Thunderstorm WatchSPCBarton, Ellsworth, Harper, Harvey, Kingman, Lincoln and 7 more7 hr

Nearby

Mesoscale Discussions in Kansas, 2018Mesoscale Discussions in Colorado, 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.