Alert archive / Kansas / Mesoscale Discussions in 2020

Mesoscale Discussion 1489

August 14, 202011 counties in Kansas; Texas County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Aug 14, 2020, 3:22 PM CDT for 11 counties in Kansas; Texas County, Oklahoma. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: Aug 14, 2020, 3:22 PM CDT (20:22 UTC)
Expired: Aug 14, 2020, 5:15 PM CDT
In force: 113 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

Counties Grant County, KS, Greeley County, KS, Hamilton County, KS, Kearny County, KS, Logan County, KS, Morton County, KS, Scott County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Wichita County, KS, Texas County, OK

The radar

The Dodge City radar (KDDC), 125 km from the middle of the area, began a volume at 20:23 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 12:00Z, 8.4 hours before the alert went out and 131 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1224 J/kg
Mixed-layer CIN: -447 J/kg
Mixed-layer LCL: 1761 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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.

Issued	Product	Office	Counties	Lasted
Aug 14, 5:05 PM CDT	Severe Thunderstorm Watch	SPC	Cloud, Jewell, Marshall, Mitchell, Osborne, Ottawa and 5 more	6 hr
Aug 14, 6:17 PM CDT	Mesoscale Discussion	SPC	Cloud, Jewell, Marshall, Mitchell, Osborne, Republic and 2 more	88 min
Aug 14, 2:42 AM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 9 more	2 hr
Aug 14, 4:36 PM CDT	Mesoscale Discussion	SPC	Texas	84 min

Nearby

Mesoscale Discussions in Kansas, 2020 Mesoscale Discussions in Oklahoma, 2020 Every mesoscale discussion in 2020

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.