Alert archive / Oklahoma / Mesoscale Discussions in 2017

Mesoscale Discussion 1078

June 17, 201711 counties in Kansas; 9 counties in Missouri; 18 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2017, 11:55 PM CDT for 11 counties in Kansas; 9 counties in Missouri; 18 counties in Oklahoma. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2017, 11:55 PM CDT (04:55 UTC)
Expired
Jun 18, 2017, 1:30 AM CDT
In force
95 min
Issued by
the Storm Prediction Center
All 38 counties

Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Harper County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Sumner County, KS, Barton County, MO, Cedar County, MO, Dade County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, St. Clair County, MO, Vernon County, MO, Alfalfa County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Mayes County, OK, Noble County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK, Woods County, OK

The radar

The Wichita radar (KICT), 117 km from the middle of the area, began a volume at 04:57 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

Norman, OK (KOUN), launched 00:00Z, 4.9 hours before the alert went out and 215 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, Norman, OK at 00:00Z on 2017-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3025 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, Norman, OK at 00:00Z on 2017-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939Sfc1 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
3025 J/kg
Mixed-layer CIN
-400 J/kg
Mixed-layer LCL
1479 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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
Jun 17, 8:23 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Barber, Bourbon, Butler and 48 more2 hr
Jun 17, 9:34 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 15 more116 min
Jun 17, 10:18 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford6 hr
Jun 17, 8:17 PM CDTMesoscale DiscussionSPCAdair, Clark, Knox, Lewis, Macon, Marion and 5 more58 min
Jun 17, 9:50 PM CDTMesoscale DiscussionSPCAudrain, Boone, Callaway, Cole, Crawford, Dent and 18 more55 min
Jun 17, 10:53 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Cole, Franklin, Gasconade and 12 more6 hr
Jun 18, 1:40 AM CDTMesoscale DiscussionSPCJefferson, Sainte Genevieve, Saint Louis, City of Saint Louis3 hr
Jun 18, 2:34 AM CDTSevere Thunderstorm WatchSPCBollinger, Cape Girardeau, Perry, Scott3 hr
Jun 17, 9:33 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Garfield, Grant, Harper, Kay, Lincoln and 6 more7 hr
Jun 18, 3:44 AM CDTMesoscale DiscussionSPCCleveland, Coal, Creek, Garfield, Hughes, Kingfisher and 14 more2 hr
Jun 18, 4:14 AM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Cherokee, Cleveland, Coal, Creek and 20 more6 hr
Jun 18, 7:18 AM CDTMesoscale DiscussionSPCAdair, Atoka, Cherokee, Coal, Creek, Haskell and 14 more117 min

Nearby

Mesoscale Discussions in Oklahoma, 2017Mesoscale Discussions in Kansas, 2017Mesoscale Discussions in Missouri, 2017Every mesoscale discussion in 2017

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.