Alert archive / Nebraska / Mesoscale Discussions in 2020

Mesoscale Discussion 210

March 19, 20204 states

The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2020, 4:45 PM MDT for 4 states. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Mar 19, 2020, 4:45 PM MDT (22:45 UTC)
Expired: Mar 19, 2020, 7:45 PM MDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 50 counties

Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Jefferson County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Arthur County, NE, Banner County, NE, Blaine County, NE, Box Butte County, NE, Boyd County, NE, Brown County, NE, Cedar County, NE, Cherry County, NE, Cheyenne County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Holt County, NE, Hooker County, NE, Keith County, NE, Keya Paha County, NE, Kimball County, NE, Knox County, NE, McPherson County, NE, Morrill County, NE, Rock County, NE, Scotts Bluff County, NE, Sheridan County, NE, Thomas County, NE, Bon Homme County, SD, Charles Mix County, SD, Clay County, SD, Douglas County, SD, Gregory County, SD, Hutchinson County, SD, Turner County, SD, Yankton County, SD, Laramie County, WY

The radar

The North Platte radar (KLNX), 106 km from the middle of the area, began a volume at 22:48 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.8 hours before the alert went out and 60 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 612 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 200 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
Mar 19, 1:01 PM MDT	Mesoscale Discussion	SPC	Adams, Clay, Fillmore, Franklin, Furnas, Harlan and 6 more	119 min
Mar 19, 1:41 PM MDT	Mesoscale Discussion	SPC	Cass, Douglas, Fillmore, Gage, Jefferson, Johnson and 10 more	3 hr
Mar 19, 2:29 PM MDT	Tornado Watch	SPC	Cass, Gage, Jefferson, Johnson, Lancaster, Nemaha and 5 more	8 hr
Mar 19, 4:43 PM MDT	Mesoscale Discussion	SPC	Cass, Douglas, Gage, Jefferson, Johnson, Lancaster and 8 more	2 hr

Nearby

Mesoscale Discussions in Nebraska, 2020 Mesoscale Discussions in Colorado, 2020 Mesoscale Discussions in South Dakota, 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.