Alert archive / Nebraska / Mesoscale Discussions in 2024

Mesoscale Discussion 1939

August 18, 202415 counties in Nebraska; 10 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 18, 2024, 2:23 AM CDT for 15 counties in Nebraska; 10 counties in South Dakota. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Aug 18, 2024, 2:23 AM CDT (07:23 UTC)
Expired: Aug 18, 2024, 5:00 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

All 25 counties

Blaine County, NE, Brown County, NE, Cherry County, NE, Custer County, NE, Garfield County, NE, Grant County, NE, Holt County, NE, Hooker County, NE, Keya Paha County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Rock County, NE, Sheridan County, NE, Thomas County, NE, Bennett County, SD, Gregory County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Lyman County, SD, Mellette County, SD, Oglala Lakota County, SD, Todd County, SD, Tripp County, SD

The radar

The North Platte radar (KLNX), 121 km from the middle of the area, began a volume at 07:26 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.

Severe Thunderstorm Watch 633Aug 18, 4:35 AM CDT

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 18, 4:34 AM CDT	Severe Thunderstorm Watch	SPC	Antelope, Blaine, Boone, Boyd, Brown, Custer and 16 more	5 hr
Aug 18, 5:50 AM CDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boone, Boyd, Brown, Custer and 13 more	115 min
Aug 18, 7:51 AM CDT	Mesoscale Discussion	SPC	Adams, Antelope, Blaine, Boone, Brown, Buffalo and 34 more	114 min

Nearby

Mesoscale Discussions in Nebraska, 2024 Mesoscale Discussions in South Dakota, 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; radar from the NEXRAD Level II archive.