Alert archive / Kansas / Mesoscale Discussions in 2020

Mesoscale Discussion 828

June 4, 20206 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2020, 8:50 PM CDT for 6 counties in Kansas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Jun 4, 2020, 8:50 PM CDT (01:50 UTC)
Expired: Jun 4, 2020, 10:15 PM CDT
In force: 85 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 40%

Counties Grant County, KS, Gray County, KS, Haskell County, KS, Meade County, KS, Seward County, KS, Stevens County, KS

The radar

The Dodge City radar (KDDC), 69 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

Dodge City, (KDDC), launched 00:00Z, 1.8 hours before the alert went out and 75 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: 587 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 3226 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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.

Issued	Product	Office	Counties	Lasted
Jun 4, 7:42 PM CDT	Severe Thunderstorm Watch	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	6 hr
Jun 4, 11:32 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Atchison, Brown, Clay, Cloud, Coffey and 20 more	7 hr
Jun 5, 1:59 AM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Franklin, Geary and 13 more	91 min
Jun 5, 3:31 AM CDT	Mesoscale Discussion	SPC	Bourbon	89 min

Nearby

Mesoscale Discussions in Kansas, 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.