Alert archive / Missouri / Mesoscale Discussions in 2014

Mesoscale Discussion 428

April 27, 20147 counties in Kansas; 66 counties in Missouri; Ottawa County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Apr 27, 2014, 4:57 PM CDT for 7 counties in Kansas; 66 counties in Missouri; Ottawa County, Oklahoma. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued
Apr 27, 2014, 4:57 PM CDT (21:57 UTC)
Expired
Apr 27, 2014, 6:00 PM CDT
In force
63 min
Issued by
the Storm Prediction Center
All 74 counties

Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Johnson County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Buchanan County, MO, Caldwell County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Christian County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Daviess County, MO, DeKalb County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Howell County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Maries County, MO, McDonald County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Pettis County, MO, Phelps County, MO, Platte County, MO, Polk County, MO, Pulaski County, MO, Putnam County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Sullivan County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Ottawa County, OK

The radar

The Pleasant Hill radar (KEAX), 135 km from the middle of the area, began a volume at 22:00 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 12:00Z, 10.0 hours before the alert went out and 191 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 2014-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1412 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 2014-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 369 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
1412 J/kg
Mixed-layer CIN
-304 J/kg
Mixed-layer LCL
983 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
369 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.

IssuedProductOfficeCountiesLasted
Apr 27, 5:09 AM CDTMesoscale DiscussionSPCAnderson, Atchison, Barber, Barton, Butler, Chase and 46 more96 min
Apr 27, 6:09 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Brown, Butler, Chase, Chautauqua and 41 more6 hr
Apr 27, 7:55 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 40 more95 min
Apr 27, 10:37 AM CDTMesoscale DiscussionSPCBourbon, Crawford, Doniphan, Johnson, Leavenworth, Linn and 2 more113 min
Apr 27, 11:23 AM CDTTornado WatchSPCBourbon, Cherokee, Crawford, Johnson, Leavenworth, Linn and 2 more8 hr
Apr 27, 11:54 AM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Jewell, Mitchell, Ottawa and 3 more96 min
Apr 27, 12:16 PM CDTTornado WatchSPCJewell, Mitchell, Smith7 hr
Apr 27, 6:10 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Johnson, Linn, Miami and 1 more95 min
Apr 27, 6:26 PM CDTTornado WatchSPCJohnson, Leavenworth, Miami, Wyandotte8 hr
Apr 27, 1:59 PM CDTMesoscale DiscussionSPCAdair, Audrain, Barton, Benton, Boone, Caldwell and 60 more61 min
Apr 27, 2:13 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Clark, Cole, Crawford and 25 more7 hr
Apr 27, 5:33 AM CDTSevere Thunderstorm WatchSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 51 more6 hr
Apr 27, 10:06 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Cherokee, Choctaw, Coal, Craig and 16 more84 min
Apr 27, 12:25 PM CDTMesoscale DiscussionSPCLeFlore, McCurtain, Sequoyah2 hr
Apr 27, 1:46 PM CDTTornado WatchSPCAdair, Cherokee, Choctaw, Craig, Delaware, Haskell and 11 more9 hr
Apr 27, 3:36 PM CDTTornado Watch PDSSPCLeFlore, McCurtain7 hr
Apr 27, 4:52 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Haskell, LeFlore, McCurtain, Sequoyah53 min
Apr 27, 6:11 PM CDTMesoscale DiscussionSPCAdair, Haskell, LeFlore, McCurtain, Sequoyah64 min

Nearby

Mesoscale Discussions in Missouri, 2014Mesoscale Discussions in Kansas, 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.