Alert archive / Nebraska / Mesoscale Discussions in 2014

Mesoscale Discussion 808

June 4, 20147 counties in Kansas; 6 counties in Missouri; 8 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2014, 12:28 AM CDT for 7 counties in Kansas; 6 counties in Missouri; 8 counties in Nebraska. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
Jun 4, 2014, 12:28 AM CDT (05:28 UTC)
Expired
Jun 4, 2014, 1:30 AM CDT
In force
62 min
Issued by
the Storm Prediction Center
All 21 counties

Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Leavenworth County, KS, Marshall County, KS, Nemaha County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE

The radar

The Topeka radar (KTWX), 114 km from the middle of the area, began a volume at 05:28 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

Topeka, KS (KFOE), launched 00:00Z, 5.5 hours before the alert went out and 111 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, Topeka, KS at 00:00Z on 2014-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1643 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, Topeka, KS at 00:00Z on 2014-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.19395878Sfc1 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
1643 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1425 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
1.0
Supercell composite
10.0

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
Jun 3, 9:20 PM CDTTornado WatchSPCBrown, Jackson, Jefferson, Marshall, Nemaha4 hr
Jun 3, 9:41 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Marshall, Nemaha and 2 more64 min
Jun 4, 12:50 AM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Johnson and 4 more3 hr
Jun 4, 5:41 PM CDTMesoscale DiscussionSPCCheyenne, Rawlins64 min
Jun 4, 6:12 PM CDTSevere Thunderstorm WatchSPCCheyenne, Sherman, Wallace8 hr
Jun 3, 7:04 PM CDTMesoscale DiscussionSPCAndrew, Atchison, DeKalb, Gentry, Harrison, Holt and 2 more56 min
Jun 3, 8:05 PM CDTMesoscale DiscussionSPCAudrain, Clark, Knox, Lewis, Lincoln, Marion and 5 more85 min
Jun 3, 9:25 PM CDTSevere Thunderstorm WatchSPCKnox, Lewis, Marion, Monroe, Pike, Ralls and 1 more5 hr
Jun 3, 11:30 PM CDTMesoscale DiscussionSPCAudrain, Boone, Caldwell, Callaway, Carroll, Cass and 23 more60 min
Jun 3, 11:45 PM CDTSevere Thunderstorm WatchSPCAudrain, Benton, Boone, Callaway, Carroll, Cass and 25 more5 hr
Jun 4, 1:29 AM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Chariton, Cole, Cooper and 20 more91 min
Jun 4, 3:32 AM CDTMesoscale DiscussionSPCBenton, Camden, Cole, Cooper, Henry, Johnson and 5 more88 min
Jun 4, 5:00 AM CDTSevere Thunderstorm WatchSPCCallaway, Camden, Cole, Crawford, Dent, Franklin and 19 more4 hr
Jun 4, 7:01 AM CDTMesoscale DiscussionSPCIron, Jefferson, Sainte Genevieve, Saint Francois, City of Saint Louis89 min
Jun 4, 12:20 PM CDTMesoscale DiscussionSPCCape Girardeau, Crawford, Jefferson, Perry, Sainte Genevieve, Saint Francois and 1 more115 min
Jun 4, 12:54 PM CDTMesoscale DiscussionSPCBollinger, Butler, Carter, Dent, Dunklin, Howell and 10 more2 hr
Jun 4, 2:21 PM CDTTornado WatchSPCBollinger, Butler, Cape Girardeau, Carter, Crawford, Iron and 13 more6 hr
Jun 4, 3:47 PM CDTMesoscale DiscussionSPCBarry, Camden, Cedar, Christian, Dade, Dallas and 14 more118 min
Jun 4, 6:57 PM CDTMesoscale DiscussionSPCDunklin, Mississippi, New Madrid, Pemiscot, Scott, Stoddard2 hr
Jun 4, 1:58 PM CDTMesoscale DiscussionSPCDawes, Sioux92 min

Nearby

Mesoscale Discussions in Nebraska, 2014Mesoscale Discussions in Kansas, 2014Mesoscale Discussions in Missouri, 2014Every mesoscale discussion in 2014

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.