Alert archive / Missouri / Mesoscale Discussions in 2015

Mesoscale Discussion 225

April 8, 2015Bourbon County, Linn County, Miami County, Kansas; 25 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2015, 6:17 AM CDT for Bourbon County, Linn County, Miami County, Kansas; 25 counties in Missouri. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Apr 8, 2015, 6:17 AM CDT (11:17 UTC)
Expired
Apr 8, 2015, 7:45 AM CDT
In force
88 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 28 counties

Bourbon County, KS, Linn County, KS, Miami County, KS, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Cole County, MO, Cooper County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Johnson County, MO, Lafayette County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Polk County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 85 km from the middle of the area, began a volume at 11:17 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

Springfield, MO (KSGF), launched 00:00Z, 11.3 hours before the alert went out and 186 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, Springfield, MO at 00:00Z on 2015-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2849 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, Springfield, MO at 00:00Z on 2015-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
2849 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1278 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.9

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
Apr 7, 8:24 PM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 7 more5 hr
Apr 7, 10:13 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 5 more2 hr
Apr 8, 2:21 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 12 more114 min
Apr 8, 2:47 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 13 more4 hr
Apr 8, 3:37 PM CDTTornado WatchSPCAllen, Barber, Butler, Chase, Chautauqua, Cowley and 16 more8 hr
Apr 8, 5:31 PM CDTMesoscale DiscussionSPCChase, Harvey, Kingman, Marion, Pratt, Reno59 min
Apr 8, 5:45 PM CDTMesoscale DiscussionSPCJohnson, Miami60 min
Apr 8, 6:39 AM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Barton, Bates, Benton, Boone and 54 more6 hr
Apr 8, 9:33 AM CDTMesoscale DiscussionSPCAdair, Audrain, Benton, Boone, Caldwell, Callaway and 45 more57 min
Apr 8, 12:01 PM CDTMesoscale DiscussionSPCCole, Crawford, Dent, Franklin, Gasconade, Iron and 15 more59 min
Apr 8, 12:50 PM CDTMesoscale DiscussionSPCFranklin, Gasconade, Jefferson, Lincoln, Montgomery, Osage and 4 more85 min
Apr 8, 1:05 PM CDTSevere Thunderstorm WatchSPCCallaway, Crawford, Franklin, Gasconade, Jefferson, Lincoln and 10 more5 hr
Apr 8, 2:43 PM CDTMesoscale DiscussionSPCCrawford, Franklin, Gasconade, Jefferson, Lincoln, Montgomery and 9 more92 min
Apr 8, 3:42 PM CDTMesoscale DiscussionSPCIron, Jefferson, Perry, Sainte Genevieve, Saint Francois, Washington63 min
Apr 8, 4:07 PM CDTTornado WatchSPCBollinger, Cape Girardeau, Iron, Jefferson, Madison, Perry and 3 more4 hr

Nearby

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