Alert archive / Nebraska / Mesoscale Discussions in 2009

Mesoscale Discussion 387

April 4, 20099 counties in Nebraska; 7 counties in South Dakota; 5 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Apr 4, 2009, 4:57 AM MDT for 9 counties in Nebraska; 7 counties in South Dakota; 5 counties in Wyoming. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Apr 4, 2009, 4:57 AM MDT (10:57 UTC)
Expired: Apr 4, 2009, 9:00 AM MDT
In force: 4 hr
Issued by: the Storm Prediction Center

All 21 counties

Banner County, NE, Box Butte County, NE, Cherry County, NE, Dawes County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Bennett County, SD, Custer County, SD, Fall River County, SD, Jackson County, SD, Oglala Lakota County, SD, Pennington County, SD, Todd County, SD, Albany County, WY, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 178 km from the middle of the area, began a volume at 10:56 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 text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 4, 10:25 AM MDT	Mesoscale Discussion	SPC	Arthur, Blaine, Boyd, Brown, Chase, Cherry and 15 more	3 hr
Apr 4, 12:12 PM MDT	Mesoscale Discussion	SPC	Clay, Fillmore, Gage, Jefferson, Johnson, Nemaha and 6 more	2 hr
Apr 4, 1:06 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Clay, Fillmore, Gage, Hall, Hamilton and 15 more	6 hr
Apr 4, 2:20 PM MDT	Mesoscale Discussion	SPC	Arthur, Blaine, Boyd, Brown, Cherry, Custer and 15 more	2 hr
Apr 4, 2:52 PM MDT	Mesoscale Discussion	SPC	Clay, Fillmore, Gage, Hamilton, Jefferson, Johnson and 11 more	53 min

Nearby

Mesoscale Discussions in Nebraska, 2009 Mesoscale Discussions in South Dakota, 2009 Mesoscale Discussions in Wyoming, 2009 Every mesoscale discussion in 2009

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.