Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 884

June 4, 201522 counties in Kansas; 10 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2015, 9:42 AM CDT for 22 counties in Kansas; 10 counties in Missouri. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued
Jun 4, 2015, 9:42 AM CDT (14:42 UTC)
Expired
Jun 4, 2015, 11:15 AM CDT
In force
93 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 32 counties

Anderson County, KS, Atchison County, KS, Brown County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Marshall County, KS, Miami County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Buchanan County, MO, Caldwell County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Platte County, MO, Ray County, MO

The radar

The Topeka radar (KTWX), 56 km from the middle of the area, began a volume at 14:41 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 12:00Z, 2.7 hours before the alert went out and 5 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 2015-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 659 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 2015-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
659 J/kg
Mixed-layer CIN
-191 J/kg
Mixed-layer LCL
761 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

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
Jun 3, 8:20 PM CDTMesoscale DiscussionSPCBarton, Clay, Cloud, Decatur, Dickinson, Ellis and 26 more115 min
Jun 3, 11:28 PM CDTMesoscale DiscussionSPCCheyenne, Greeley, Logan, Sherman, Thomas, Wallace and 1 more62 min
Jun 3, 11:59 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more6 hr
Jun 4, 12:01 AM CDTMesoscale DiscussionSPCClay, Cloud, Graham, Jewell, Marshall, Mitchell and 8 more89 min
Jun 4, 1:56 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Jackson and 8 more94 min
Jun 4, 4:46 AM CDTMesoscale DiscussionSPCJewell, Marshall, Norton, Phillips, Republic, Smith and 1 more89 min
Jun 4, 12:26 PM CDTMesoscale DiscussionSPCClay, Cloud, Geary, Marshall, Pottawatomie, Republic and 3 more94 min
Jun 4, 3:28 PM CDTMesoscale DiscussionSPCBarton, Cheyenne, Decatur, Dickinson, Ellis, Ellsworth and 22 more92 min
Jun 4, 4:52 PM CDTMesoscale DiscussionSPCMeade, Seward2 hr

Nearby

Mesoscale Discussions in Kansas, 2015Mesoscale Discussions in Missouri, 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.