Alert archive / Kansas / Mesoscale Discussions in 2014

Mesoscale Discussion 1218

June 30, 201424 counties in Kansas; 13 counties in Missouri; 5 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 30, 2014, 3:52 PM CDT for 24 counties in Kansas; 13 counties in Missouri; 5 counties in Nebraska. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: Jun 30, 2014, 3:52 PM CDT (20:52 UTC)
Expired: Jun 30, 2014, 5:45 PM CDT
In force: 113 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 42 counties

Atchison County, KS, Brown County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Leavenworth County, KS, Lincoln County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Saline County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Harrison County, MO, Holt County, MO, Nodaway County, MO, Platte County, MO, Worth County, MO, Gage County, NE, Johnson County, NE, Nemaha County, NE, Pawnee County, NE, Richardson County, NE

The radar

The Topeka radar (KTWX), 82 km from the middle of the area, began a volume at 20:55 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.

Tornado Watch 376Jun 30, 5:30 PM CDT

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 8.9 hours before the alert went out and 80 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2105 J/kg
Mixed-layer CIN: -355 J/kg
Mixed-layer LCL: 1205 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 254 m²/s²
0-3 km storm-relative helicity: 225 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

Issued	Product	Office	Counties	Lasted
Jun 29, 9:02 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Franklin, Jackson and 7 more	88 min
Jun 29, 11:36 PM CDT	Mesoscale Discussion	SPC	Wyandotte	54 min
Jun 30, 12:06 PM CDT	Mesoscale Discussion	SPC	Anderson, Atchison, Brown, Chase, Clay, Coffey and 26 more	54 min
Jun 30, 3:55 PM CDT	Mesoscale Discussion	SPC	Clark, Comanche, Ford, Gray, Haskell, Kiowa and 4 more	65 min
Jun 30, 5:29 PM CDT	Tornado Watch	SPC	Atchison, Doniphan, Johnson, Leavenworth, Wyandotte	6 hr
Jun 30, 6:30 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 15 more	6 hr
Jun 30, 6:50 PM CDT	Mesoscale Discussion	SPC	Atchison, Barber, Chase, Clark, Comanche, Douglas and 21 more	85 min
Jun 29, 10:10 PM CDT	Mesoscale Discussion	SPC	Nodaway, Worth	65 min
Jun 30, 2:03 PM CDT	Tornado Watch	SPC	Clark, Scotland	5 hr
Jun 30, 3:25 PM CDT	Mesoscale Discussion	SPC	Clark, Scotland	35 min
Jun 30, 5:12 PM CDT	Mesoscale Discussion	SPC	Adair, Andrew, Buchanan, Caldwell, Clark, Clinton and 20 more	63 min
Jun 29, 11:53 PM CDT	Mesoscale Discussion	SPC	Adams, Buffalo, Clay, Custer, Dawson, Franklin and 13 more	97 min
Jun 30, 1:02 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Antelope, Blaine, Boone, Brown, Buffalo and 31 more	10 hr
Jun 30, 3:32 AM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Burt, Cedar, Cuming, Dakota and 8 more	58 min
Jun 30, 4:06 AM CDT	Severe Thunderstorm Watch	SPC	Antelope, Boone, Burt, Butler, Cass, Cedar and 18 more	10 hr
Jun 30, 7:16 AM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Burt, Cedar, Colfax, Cuming and 18 more	89 min
Jun 30, 9:08 AM CDT	Mesoscale Discussion	SPC	Burt, Colfax, Cuming, Dodge, Douglas, Sarpy and 2 more	67 min
Jun 30, 9:38 AM CDT	Tornado Watch	SPC	Antelope, Boone, Burt, Butler, Cass, Colfax and 22 more	10 hr
Jun 30, 10:48 AM CDT	Mesoscale Discussion	SPC	Burt, Cuming, Dakota, Thurston	87 min
Jun 30, 1:27 PM CDT	Mesoscale Discussion	SPC	Butler, Cass, Dodge, Douglas, Lancaster, Otoe and 5 more	93 min

Nearby

Mesoscale Discussions in Kansas, 2014 Mesoscale Discussions in Missouri, 2014 Mesoscale Discussions in Nebraska, 2014 Every mesoscale discussion in 2014

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.