Alert archive / Kansas / Mesoscale Discussions in 2016

Mesoscale Discussion 465

April 26, 201652 counties in Kansas; 13 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 26, 2016, 6:32 PM CDT for 52 counties in Kansas; 13 counties in Nebraska. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued
Apr 26, 2016, 6:32 PM CDT (23:32 UTC)
Expired
Apr 26, 2016, 7:30 PM CDT
In force
58 min
Issued by
the Storm Prediction Center
All 65 counties

Allen County, KS, Anderson County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Cowley County, KS, Dickinson County, KS, Douglas County, KS, Elk County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Jewell County, KS, Kingman County, KS, Labette County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Neosho County, KS, Osage County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Pottawatomie County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Smith County, KS, Sumner County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Kearney County, NE, Nuckolls County, NE, Pawnee County, NE, Saline County, NE, Thayer County, NE, Webster County, NE

The radar

The Topeka radar (KTWX), 68 km from the middle of the area, began a volume at 23:33 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 12:00Z, 11.5 hours before the alert went out and 113 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 12:00Z on 2016-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1934 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 12:00Z on 2016-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 268 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
1934 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
628 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
268 m²/s²
0-3 km storm-relative helicity
330 m²/s²
Significant tornado parameter
2.7
Supercell composite
22.6

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 2:18 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Dickinson, Doniphan and 21 more117 min
Apr 26, 3:02 AM CDTSevere Thunderstorm WatchSPCBrown, Clay, Cloud, Douglas, Geary, Jackson and 14 more6 hr
Apr 26, 4:37 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Douglas and 13 more83 min
Apr 26, 6:23 AM CDTSevere Thunderstorm WatchSPCAtchison, Doniphan, Johnson, Leavenworth, Miami, Wyandotte7 hr
Apr 26, 7:18 AM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jefferson, Leavenworth, Wyandotte87 min
Apr 26, 10:09 AM CDTMesoscale DiscussionSPCChautauqua, Labette, Montgomery96 min
Apr 26, 1:35 PM CDTMesoscale DiscussionSPCAllen, Anderson, Butler, Chase, Chautauqua, Clay and 37 more115 min
Apr 26, 2:12 PM CDTTornado WatchSPCAllen, Anderson, Butler, Chase, Chautauqua, Clay and 46 more7 hr
Apr 26, 6:14 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Leavenworth61 min
Apr 26, 2:35 AM CDTMesoscale DiscussionSPCChase, Deuel, Dundy, Keith, Perkins115 min

Nearby

Mesoscale Discussions in Kansas, 2016Mesoscale Discussions in Nebraska, 2016Every mesoscale discussion in 2016

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.