Alert archive / South Dakota / Mesoscale Discussions in 2010

Mesoscale Discussion 697

May 24, 2010Jewell County, Phillips County, Smith County, Kansas; 27 counties in Nebraska; 42 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at May 24, 2010, 6:03 PM CDT for Jewell County, Phillips County, Smith County, Kansas; 27 counties in Nebraska; 42 counties in South Dakota. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
May 24, 2010, 6:03 PM CDT (23:03 UTC)
Expired
May 24, 2010, 7:30 PM CDT
In force
87 min
Issued by
the Storm Prediction Center
All 72 counties

Jewell County, KS, Phillips County, KS, Smith County, KS, Adams County, NE, Antelope County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Franklin County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Harlan County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Keya Paha County, NE, Knox County, NE, Loup County, NE, Phelps County, NE, Rock County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Webster County, NE, Wheeler County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Campbell County, SD, Charles Mix County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Day County, SD, Dewey County, SD, Douglas County, SD, Edmunds County, SD, Faulk County, SD, Gregory County, SD, Haakon County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hughes County, SD, Hutchinson County, SD, Hyde County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lyman County, SD, Marshall County, SD, McPherson County, SD, Mellette County, SD, Miner County, SD, Potter County, SD, Sanborn County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD

The radar

The North Platte radar (KLNX), 153 km from the middle of the area, began a volume at 23:03 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

Aberdeen, SD (KABR), launched 12:00Z, 11.1 hours before the alert went out and 218 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, Aberdeen, SD at 12:00Z on 2010-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 224 joules per kilogram.LCLLFCEL10008507005003002001001 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, Aberdeen, SD at 12:00Z on 2010-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 526 square meters per square second.1939587897Sfc1 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
224 J/kg
Mixed-layer CIN
-383 J/kg
Mixed-layer LCL
1830 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
526 m²/s²
0-3 km storm-relative helicity
528 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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
May 23, 8:12 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Grant, Greeley, Hamilton and 11 more93 min
May 23, 11:33 PM CDTMesoscale DiscussionSPCGrant, Hamilton, Kearny, Logan, Morton, Scott and 4 more57 min
May 23, 11:54 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more4 hr
May 24, 4:56 AM CDTMesoscale DiscussionSPCCheyenne, Finney, Grant, Gray, Greeley, Hamilton and 13 more2 hr
May 24, 10:44 AM CDTMesoscale DiscussionSPCCheyenne, Greeley, Hamilton, Sherman, Wallace91 min
May 24, 11:46 AM CDTTornado WatchSPCCheyenne, Clark, Decatur, Finney, Ford, Gove and 25 more10 hr
May 24, 3:47 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Finney, Ford, Gove, Gray and 13 more88 min
May 24, 5:26 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Ford, Gray and 7 more64 min
May 23, 7:39 PM CDTMesoscale DiscussionSPCArthur, Blaine, Chase, Custer, Dawson, Frontier and 9 more66 min
May 23, 7:50 PM CDTSevere Thunderstorm WatchSPCArthur, Blaine, Boyd, Brown, Buffalo, Chase and 24 more4 hr
May 23, 11:12 PM CDTMesoscale DiscussionSPCBlaine, Brown, Custer, Hayes, Holt, Hooker and 6 more2 hr
May 23, 11:39 PM CDTSevere Thunderstorm WatchSPCBox Butte, Dawes, Scotts Bluff, Sioux5 hr
May 24, 6:06 AM CDTMesoscale DiscussionSPCArthur, Box Butte, Brown, Cherry, Dawes, Garden and 6 more114 min
May 24, 11:55 AM CDTMesoscale DiscussionSPCArthur, Box Butte, Cherry, Cheyenne, Dawes, Garden and 4 more95 min
May 24, 12:21 PM CDTTornado WatchSPCArthur, Banner, Box Butte, Chase, Cherry, Cheyenne and 18 more9 hr
May 24, 2:33 PM CDTTornado WatchSPCBlaine, Boyd, Brown, Custer, Garfield, Holt and 4 more5 hr
May 24, 3:33 PM CDTMesoscale DiscussionSPCArthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 11 more57 min
May 23, 10:19 PM CDTMesoscale DiscussionSPCAurora, Beadle, Bennett, Brule, Buffalo, Davison and 18 more86 min
May 24, 1:37 AM CDTMesoscale DiscussionSPCBrown, Campbell, Corson, Day, Dewey, Edmunds and 8 more83 min
May 24, 2:00 AM CDTSevere Thunderstorm WatchSPCBrown, Campbell, Clark, Codington, Corson, Day and 12 more7 hr
May 24, 4:21 AM CDTMesoscale DiscussionSPCAurora, Beadle, Brown, Campbell, Clark, Codington and 16 more54 min

Nearby

Mesoscale Discussions in South Dakota, 2010Mesoscale Discussions in Nebraska, 2010Mesoscale Discussions in Kansas, 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.