Alert archive / Kansas / Mesoscale Discussions in 2019

Mesoscale Discussion 818

May 26, 201925 counties in Kansas; 25 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 26, 2019, 5:27 PM CDT for 25 counties in Kansas; 25 counties in Nebraska. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued
May 26, 2019, 5:27 PM CDT (22:27 UTC)
Expired
May 26, 2019, 6:30 PM CDT
In force
63 min
Issued by
the Storm Prediction Center
All 50 counties

Barton County, KS, Cloud County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Graham County, KS, Hodgeman County, KS, Jewell County, KS, Lincoln County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Republic County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Stafford County, KS, Trego County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 80 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 180 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 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 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, N. Platte/Lee Bi, NE at 12:00Z on 2019-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
136 J/kg
Mixed-layer CIN
-387 J/kg
Mixed-layer LCL
1334 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
May 25, 8:21 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Chase, Chautauqua, Coffey and 22 more54 min
May 25, 8:47 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 27 more6 hr
May 26, 12:19 PM CDTMesoscale DiscussionSPCCheyenne, Finney, Gove, Grant, Gray, Greeley and 17 more116 min
May 26, 1:27 PM CDTTornado WatchSPCCheyenne, Decatur, Finney, Gove, Graham, Grant and 18 more9 hr
May 26, 3:43 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Finney, Gove, Graham, Grant and 21 more92 min
May 26, 5:42 PM CDTSevere Thunderstorm WatchSPCBarton, Edwards, Ellis, Ellsworth, Ford, Gray and 16 more6 hr
May 26, 6:04 PM CDTMesoscale DiscussionSPCGrant, Greeley, Hamilton, Kearny, Morton, Stanton and 2 more86 min
May 26, 6:56 PM CDTMesoscale DiscussionSPCMorton, Seward, Stevens64 min
May 26, 3:07 PM CDTMesoscale DiscussionSPCSioux113 min
May 26, 6:03 PM CDTMesoscale DiscussionSPCBanner, Box Butte, Cheyenne, Kimball, Morrill, Scotts Bluff and 1 more57 min

Nearby

Mesoscale Discussions in Kansas, 2019Mesoscale Discussions in Nebraska, 2019Every mesoscale discussion in 2019

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.