Alert archive / Kansas / Mesoscale Discussions in 2018

Mesoscale Discussion 1355

August 25, 2018Kit Carson County, Yuma County, Colorado; 13 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Aug 25, 2018, 7:50 PM MDT for Kit Carson County, Yuma County, Colorado; 13 counties in Kansas. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued
Aug 25, 2018, 7:50 PM MDT (01:50 UTC)
Expired
Aug 25, 2018, 8:45 PM MDT
In force
55 min
Issued by
the Storm Prediction Center
Chance of a watch
5%

Counties Kit Carson County, CO, Yuma County, CO, Cheyenne County, KS, Finney County, KS, Grant County, KS, Greeley County, KS, Hamilton County, KS, Kearny County, KS, Logan County, KS, Scott County, KS, Sherman County, KS, Stanton County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS

The radar

The Goodland radar (KGLD), 82 km from the middle of the area, began a volume at 01:52 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

Denver, CO (KDEN), launched 00:00Z, 1.8 hours before the alert went out and 187 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, Denver, CO at 00:00Z on 2018-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 joules per kilogram.LCLEL10008507005003002001001 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, Denver, CO at 00:00Z on 2018-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
78 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
3559 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
72 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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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.