Alert archive / Kansas / Mesoscale Discussions in 2020

Mesoscale Discussion 889

June 9, 20208 counties in Kansas; 5 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2020, 2:03 PM CDT for 8 counties in Kansas; 5 counties in Nebraska. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 9, 2020, 2:03 PM CDT (19:03 UTC)
Expired: Jun 9, 2020, 3:30 PM CDT
In force: 87 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...tornado watch likely
Chance of a watch: 95%

Counties Clay County, KS, Cloud County, KS, Jewell County, KS, Mitchell County, KS, Ottawa County, KS, Republic County, KS, Riley County, KS, Washington County, KS, Fillmore County, NE, Jefferson County, NE, Nuckolls County, NE, Saline County, NE, Thayer County, NE

The radar

The Grand Island radar (KUEX), 94 km from the middle of the area, began a volume at 19:07 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.

Tornado Watch 273Jun 9, 2:35 PM CDT

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 7.1 hours before the alert went out and 193 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: 554 J/kg
Mixed-layer CIN: -237 J/kg
Mixed-layer LCL: 924 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 41 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.

Issued	Product	Office	Counties	Lasted
Jun 9, 2:36 PM CDT	Tornado Watch	SPC	Brown, Clay, Cloud, Jackson, Jewell, Marshall and 6 more	7 hr
Jun 9, 6:43 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Jackson, Jefferson, Marshall and 3 more	92 min
Jun 8, 7:16 PM CDT	Mesoscale Discussion	SPC	Blaine, Custer, Logan, Loup, Rock	59 min
Jun 8, 9:01 PM CDT	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Chase, Cheyenne, Dawes and 9 more	119 min
Jun 8, 9:13 PM CDT	Mesoscale Discussion	SPC	Blaine, Boyd, Brown, Keya Paha, Lincoln, Logan and 3 more	2 hr
Jun 9, 12:46 AM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Boyd, Brown, Chase, Cherry and 23 more	89 min

Nearby

Mesoscale Discussions in Kansas, 2020 Mesoscale Discussions in Nebraska, 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.