Alert archive / Nebraska / Mesoscale Discussions in 2019

Mesoscale Discussion 301

April 10, 2019Decatur County, Rawlins County, Kansas; 22 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2019, 10:19 PM CDT for Decatur County, Rawlins County, Kansas; 22 counties in Nebraska. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Apr 10, 2019, 10:19 PM CDT (03:19 UTC)
Expired: Apr 11, 2019, 2:45 AM CDT
In force: 4 hr
Issued by: the Storm Prediction Center

All 24 counties

Decatur County, KS, Rawlins County, KS, Blaine County, NE, Brown County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Hooker County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Red Willow County, NE, Rock County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 101 km from the middle of the area, began a volume at 03:20 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

Omaha, NE (KOAX), launched 00:00Z, 3.3 hours before the alert went out and 317 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: 703 m above ground
0-6 km bulk shear: 80 kt
0-1 km storm-relative helicity: 675 m²/s²
0-3 km storm-relative helicity: 1018 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
Apr 10, 10:08 PM CDT	Mesoscale Discussion	SPC	Brown, Clay, Cloud, Jewell, Lincoln, Marshall and 9 more	2 hr
Apr 11, 2:34 AM CDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boyd, Brown, Cedar, Cherry and 8 more	6 hr

Nearby

Mesoscale Discussions in Nebraska, 2019 Mesoscale Discussions in Kansas, 2019 Every mesoscale discussion in 2019

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.