Alert archive / Nebraska / Mesoscale Discussions in 2024

Mesoscale Discussion 2003

August 26, 2024Cheyenne County, Decatur County, Rawlins County, Kansas; 11 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2024, 5:28 PM CDT for Cheyenne County, Decatur County, Rawlins County, Kansas; 11 counties in Nebraska. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Aug 26, 2024, 5:28 PM CDT (22:28 UTC)
Expired: Aug 26, 2024, 7:00 PM CDT
In force: 92 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 40%

Counties Cheyenne County, KS, Decatur County, KS, Rawlins County, KS, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Lincoln County, NE, Logan County, NE, Phelps County, NE, Red Willow County, NE

The radar

The North Platte radar (KLNX), 150 km from the middle of the area, began a volume at 22:28 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, 10.5 hours before the alert went out and 320 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: 458 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 1914 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -137 m²/s²
0-3 km storm-relative helicity: -67 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
Aug 25, 7:50 PM CDT	Mesoscale Discussion	SPC	Boyd	85 min
Aug 26, 12:15 PM CDT	Mesoscale Discussion	SPC	Box Butte, Dawes, Morrill, Scotts Bluff, Sheridan, Sioux	2 hr
Aug 26, 2:37 PM CDT	Mesoscale Discussion	SPC	Box Butte, Boyd, Brown, Cherry, Dawes, Holt and 5 more	83 min
Aug 26, 3:11 PM CDT	Severe Thunderstorm Watch	SPC	Box Butte, Boyd, Brown, Cherry, Dawes, Holt and 4 more	8 hr
Aug 26, 4:39 PM CDT	Mesoscale Discussion	SPC	Cedar, Dixon, Holt, Knox	96 min
Aug 26, 4:51 PM CDT	Mesoscale Discussion	SPC	Box Butte, Dawes, Sheridan, Sioux	84 min
Aug 26, 5:49 PM CDT	Severe Thunderstorm Watch	SPC	Antelope, Cedar, Dakota, Dixon, Knox, Pierce and 2 more	2 hr

Nearby

Mesoscale Discussions in Nebraska, 2024 Mesoscale Discussions in Kansas, 2024 Every mesoscale discussion in 2024

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.