Alert archive / Missouri / Mesoscale Discussions in 2014

Mesoscale Discussion 342

April 13, 20149 counties in Arkansas; 47 counties in Missouri; 4 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2014, 6:01 PM CDT for 9 counties in Arkansas; 47 counties in Missouri; 4 counties in Oklahoma. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued
Apr 13, 2014, 6:01 PM CDT (23:01 UTC)
Expired
Apr 13, 2014, 7:00 PM CDT
In force
59 min
Issued by
the Storm Prediction Center
All 60 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Searcy County, AR, Washington County, AR, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Gasconade County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Howell County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Ozark County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Saline County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Cherokee County, OK, Delaware County, OK, Ottawa County, OK

The radar

The Springfield radar (KSGF), 18 km from the middle of the area, began a volume at 23:01 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

Springfield, MO (KSGF), launched 12:00Z, 11.0 hours before the alert went out and 35 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 12:00Z on 2014-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 381 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 12:00Z on 2014-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 367 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
381 J/kg
Mixed-layer CIN
-335 J/kg
Mixed-layer LCL
883 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
367 m²/s²
0-3 km storm-relative helicity
378 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.

IssuedProductOfficeCountiesLasted
Apr 13, 2:34 PM CDTMesoscale DiscussionSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 2 more2 hr
Apr 13, 4:13 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 9 more32 min
Apr 13, 4:27 PM CDTSevere Thunderstorm WatchSPCBaxter, Benton, Boone, Carroll, Madison, Marion and 3 more7 hr
Apr 13, 4:54 PM CDTMesoscale DiscussionSPCClark, Columbia, Hempstead, Howard, Lafayette, Little River and 4 more66 min
Apr 13, 5:13 PM CDTTornado WatchSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more6 hr
Apr 13, 6:25 PM CDTMesoscale DiscussionSPCClark, Conway, Crawford, Franklin, Garland, Hempstead and 15 more65 min
Apr 12, 9:12 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Gentry, Holt, Nodaway and 1 more63 min
Apr 12, 11:26 PM CDTMesoscale DiscussionSPCAdair, Andrew, Buchanan, Caldwell, Clay, Clinton and 16 more64 min
Apr 13, 7:41 AM CDTMesoscale DiscussionSPCAdair, Andrew, Atchison, Audrain, Boone, Buchanan and 43 more2 hr
Apr 13, 12:02 PM CDTSevere Thunderstorm WatchSPCAdair, Andrew, Bates, Buchanan, Caldwell, Carroll and 24 more7 hr
Apr 13, 2:32 PM CDTMesoscale DiscussionSPCBuchanan, Clinton, Platte88 min
Apr 13, 12:26 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Carter, Cleveland, Comanche, Cotton and 25 more94 min
Apr 13, 1:56 PM CDTTornado WatchSPCAtoka, Bryan, Canadian, Carter, Cleveland, Coal and 39 more8 hr
Apr 13, 3:09 PM CDTMesoscale DiscussionSPCCarter, Cleveland, Creek, Garvin, Grady, Lincoln and 12 more96 min

Nearby

Mesoscale Discussions in Missouri, 2014Mesoscale Discussions in Arkansas, 2014Mesoscale Discussions in Oklahoma, 2014Every 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.