Alert archive / Nebraska / Mesoscale Discussions in 2010

Mesoscale Discussion 352

April 23, 20105 states

The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2010, 3:10 PM MDT for 5 states. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Apr 23, 2010, 3:10 PM MDT (21:10 UTC)
Expired
Apr 23, 2010, 4:45 PM MDT
In force
95 min
Issued by
the Storm Prediction Center
All 96 counties

Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Adams County, IA, Cass County, IA, Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Brown County, KS, Cheyenne County, KS, Decatur County, KS, Doniphan County, KS, Rawlins County, KS, Thomas County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Clinton County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Worth County, MO, Adams County, NE, Antelope County, NE, Arthur County, NE, Blaine County, NE, Boone County, NE, Buffalo County, NE, Butler County, NE, Cass County, NE, Chase County, NE, Cheyenne County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dawson County, NE, Deuel County, NE, Dodge County, NE, Douglas County, NE, Dundy County, NE, Fillmore County, NE, Frontier County, NE, Furnas County, NE, Gage County, NE, Garden County, NE, Garfield County, NE, Gosper County, NE, Grant County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Howard County, NE, Johnson County, NE, Kearney County, NE, Keith County, NE, Lancaster County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Madison County, NE, McPherson County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Perkins County, NE, Phelps County, NE, Platte County, NE, Polk County, NE, Red Willow County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thomas County, NE, Valley County, NE, Washington County, NE, Wheeler County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 85 km from the middle of the area, began a volume at 21:13 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, 9.2 hours before the alert went out and 120 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2010-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 2010-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
543 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

IssuedProductOfficeCountiesLasted
Apr 22, 6:48 PM MDTTornado WatchSPCCheyenne, Kit Carson, Yuma5 hr
Apr 22, 10:17 PM MDTMesoscale DiscussionSPCYuma58 min
Apr 23, 10:43 AM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma62 min
Apr 23, 11:51 AM MDTTornado WatchSPCDunklin, Pemiscot9 hr
Apr 23, 2:47 PM MDTMesoscale DiscussionSPCButler, Carter, Dunklin, Howell, Oregon, Pemiscot and 4 more58 min
Apr 23, 5:31 PM MDTMesoscale DiscussionSPCButler, Dunklin, Mississippi, New Madrid, Pemiscot, Scott and 1 more29 min
Apr 23, 5:51 PM MDTTornado WatchSPCDunklin, Mississippi, New Madrid, Pemiscot, Scott, Stoddard8 hr
Apr 23, 12:18 PM MDTTornado WatchSPCAdams, Arthur, Blaine, Boone, Brown, Buffalo and 35 more7 hr

Nearby

Mesoscale Discussions in Nebraska, 2010Mesoscale Discussions in Iowa, 2010Mesoscale Discussions in Missouri, 2010Every mesoscale discussion in 2010

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.