Alert archive / Missouri / Mesoscale Discussions in 2014

Mesoscale Discussion 213

March 27, 201410 counties in Arkansas; 25 counties in Missouri; 4 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2014, 7:55 PM CDT for 10 counties in Arkansas; 25 counties in Missouri; 4 counties in Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 27, 2014, 7:55 PM CDT (00:55 UTC)
Expired
Mar 27, 2014, 10:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 39 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Washington County, AR, Barry County, MO, Callaway County, MO, Camden County, MO, Christian County, MO, Cole County, MO, Dallas County, MO, Douglas County, MO, Gasconade County, MO, Greene County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Newton County, MO, Osage County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Cherokee County, OK, Delaware County, OK, Sequoyah County, OK

The radar

The Springfield radar (KSGF), 57 km from the middle of the area, began a volume at 00:56 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, 0.9 hours before the alert went out and 44 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 2014-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 543 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 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 2014-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897117Sfc1 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
543 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1053 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.6

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
Mar 27, 9:44 PM CDTSevere Thunderstorm WatchSPCBaxter, Boone, Carroll, Conway, Crawford, Franklin and 18 more4 hr
Mar 28, 12:45 PM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Chicot, Clark, Cleveland and 17 more2 hr
Mar 28, 2:35 PM CDTSevere Thunderstorm WatchSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 29 more7 hr
Mar 28, 3:11 PM CDTMesoscale DiscussionSPCMiller94 min
Mar 28, 5:43 PM CDTMesoscale DiscussionSPCChicot, Desha, Phillips2 hr
Mar 28, 6:22 PM CDTSevere Thunderstorm WatchSPCLee, Phillips5 hr

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.