Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 1064

June 16, 20174 states

The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2017, 9:27 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 16, 2017, 9:27 PM CDT (02:27 UTC)
Expired
Jun 16, 2017, 11:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 64 counties

Adams County, IA, Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Ringgold County, IA, Taylor County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Marshall County, KS, Miami County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO, Worth County, MO, Cass County, NE, Clay County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Seward County, NE, Thayer County, NE

The radar

The Topeka radar (KTWX), 89 km from the middle of the area, began a volume at 02:26 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

Topeka, KS (KFOE), launched 00:00Z, 2.5 hours before the alert went out and 83 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 2017-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3990 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 2017-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
3990 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1299 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
2.4
Supercell composite
23.8

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 16, 7:52 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Audubon, Boone, Cass and 23 more9 hr
Jun 16, 10:25 PM CDTSevere Thunderstorm WatchSPCBenton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more5 hr
Jun 17, 1:35 AM CDTMesoscale DiscussionSPCCedar, Clinton, Iowa, Jackson, Johnson, Louisa and 2 more115 min
Jun 17, 2:44 PM CDTMesoscale DiscussionSPCAppanoose, Cedar, Clinton, Davis, Des Moines, Henry and 12 more2 hr
Jun 17, 5:39 PM CDTSevere Thunderstorm WatchSPCAppanoose, Davis, Des Moines, Henry, Jefferson, Lee and 6 more7 hr
Jun 16, 11:14 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Bourbon, Brown, Clay, Coffey and 21 more91 min
Jun 17, 12:09 AM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Cherokee, Crawford, Neosho, Woodson9 hr
Jun 17, 2:58 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 11 more2 hr
Jun 17, 5:31 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Neosho89 min
Jun 17, 3:45 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Barber, Barton, Butler and 37 more3 hr
Jun 17, 6:12 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Barber, Butler, Chase and 53 more7 hr
Jun 16, 11:36 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Cole, Gasconade, Knox and 11 more3 hr

Nearby

Mesoscale Discussions in Kansas, 2017Mesoscale Discussions in Missouri, 2017Mesoscale Discussions in Nebraska, 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.