Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 655

May 16, 201521 counties in Kansas; 12 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 16, 2015, 12:43 AM CDT for 21 counties in Kansas; 12 counties in Nebraska. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued
May 16, 2015, 12:43 AM CDT (05:43 UTC)
Expired
May 16, 2015, 2:15 AM CDT
In force
92 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 33 counties

Barton County, KS, Clark County, KS, Edwards County, KS, Ellis County, KS, Ford County, KS, Graham County, KS, Gray County, KS, Hodgeman County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Smith County, KS, Trego County, KS, Adams County, NE, Buffalo County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Hall County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Phelps County, NE, Sherman County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 156 km from the middle of the area, began a volume at 05:43 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 nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 5.7 hours before the alert went out and 165 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, Dodge City, at 00:00Z on 2015-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 677 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, Dodge City, at 00:00Z on 2015-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
677 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1986 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.0

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
May 15, 8:05 PM CDTMesoscale DiscussionSPCClark, Ford, Grant, Gray, Haskell, Meade and 4 more2 hr
May 16, 10:55 AM CDTMesoscale DiscussionSPCButler, Chautauqua, Cowley, Elk, Greenwood, Sumner95 min
May 16, 12:01 PM CDTMesoscale DiscussionSPCFinney, Grant, Hamilton, Haskell, Kearny, Morton and 3 more89 min
May 16, 1:15 PM CDTMesoscale DiscussionSPCDecatur, Gove, Graham, Lane, Logan, Ness and 8 more90 min
May 16, 2:41 PM CDTTornado WatchSPCClark, Decatur, Finney, Ford, Gove, Graham and 24 more5 hr
May 16, 3:04 PM CDTMesoscale DiscussionSPCButler, Cowley, Elk, Greenwood, Sedgwick, Sumner86 min
May 16, 3:34 PM CDTMesoscale DiscussionSPCAtchison, Brown, Chase, Coffey, Doniphan, Douglas and 14 more86 min
May 16, 5:12 PM CDTMesoscale DiscussionSPCDecatur, Finney, Ford, Gove, Graham, Grant and 21 more93 min
May 16, 5:46 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Chase and 20 more59 min
May 16, 5:57 PM CDTTornado WatchSPCAnderson, Atchison, Brown, Coffey, Doniphan, Douglas and 10 more5 hr
May 16, 6:16 PM CDTMesoscale DiscussionSPCButler, Chautauqua, Cowley, Elk, Greenwood, Harper and 3 more59 min
May 16, 6:23 PM CDTMesoscale DiscussionSPCDecatur, Ellis, Ford, Gove, Graham, Gray and 10 more97 min
May 16, 6:36 PM CDTTornado WatchSPCAllen, Butler, Chautauqua, Cowley, Elk, Greenwood and 6 more5 hr
May 15, 8:55 PM CDTSevere Thunderstorm WatchSPCArthur, Chase, Cherry, Deuel, Frontier, Garden and 10 more4 hr
May 15, 10:53 PM CDTMesoscale DiscussionSPCArthur, Chase, Cherry, Frontier, Garden, Grant and 9 more67 min

Nearby

Mesoscale Discussions in Kansas, 2015Mesoscale Discussions in Nebraska, 2015Every mesoscale discussion in 2015

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.