Alert archive / Nebraska / Mesoscale Discussions in 2008

Mesoscale Discussion 1081

May 29, 20085 counties in Kansas; 15 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 29, 2008, 1:44 PM CDT for 5 counties in Kansas; 15 counties in Nebraska. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued: May 29, 2008, 1:44 PM CDT (18:44 UTC)
Expired: May 29, 2008, 2:45 PM CDT
In force: 61 min
Issued by: the Storm Prediction Center

Counties Decatur County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Sheridan County, KS, Blaine County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Phelps County, NE, Red Willow County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 106 km from the middle of the area, began a volume at 18:46 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.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.7 hours before the alert went out and 23 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: 791 J/kg
Mixed-layer CIN: -191 J/kg
Mixed-layer LCL: 751 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

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
May 29, 1:10 PM CDT	Mesoscale Discussion	SPC	Grant, Hamilton, Kearny, Morton, Stanton, Stevens	65 min
May 29, 1:33 PM CDT	Tornado Watch	SPC	Cheyenne	7 hr
May 29, 2:12 PM CDT	Severe Thunderstorm Watch	SPC	Finney, Grant, Greeley, Hamilton, Haskell, Kearny and 11 more	10 hr
May 29, 2:30 PM CDT	Tornado Watch PDS	SPC	Cloud, Decatur, Ellis, Ellsworth, Gove, Graham and 14 more	8 hr
May 29, 5:55 PM CDT	Mesoscale Discussion	SPC	Brown, Clay, Cloud, Decatur, Dickinson, Ellis and 29 more	35 min
May 29, 6:43 PM CDT	Tornado Watch	SPC	Brown, Clay, Jackson, Marshall, Nemaha, Pottawatomie and 2 more	7 hr
May 29, 6:49 PM CDT	Mesoscale Discussion	SPC	Finney, Grant, Gray, Greeley, Hamilton, Haskell and 13 more	56 min
May 28, 11:41 PM CDT	Mesoscale Discussion	SPC	Antelope, Arthur, Blaine, Boyd, Brown, Cedar and 15 more	94 min
May 29, 5:32 AM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Burt, Butler, Cass, Cedar and 29 more	118 min
May 29, 12:24 PM CDT	Mesoscale Discussion	SPC	Banner, Cheyenne, Kimball, Scotts Bluff	96 min
May 29, 3:55 PM CDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boyd, Brown, Cherry, Garfield and 10 more	95 min
May 29, 5:07 PM CDT	Mesoscale Discussion	SPC	Dakota, Dixon	23 min
May 29, 5:26 PM CDT	Tornado Watch	SPC	Dakota, Dixon	6 hr

Nearby

Mesoscale Discussions in Nebraska, 2008 Mesoscale Discussions in Kansas, 2008 Every mesoscale discussion in 2008

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.