Alert archive / Missouri / Mesoscale Discussions in 2013

Mesoscale Discussion 345

March 30, 20134 states

The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2013, 5:41 PM CDT for 4 states. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: Mar 30, 2013, 5:41 PM CDT (22:41 UTC)
Expired: Mar 30, 2013, 7:15 PM CDT
In force: 94 min
Issued by: the Storm Prediction Center

Counties Benton County, AR, Boone County, AR, Carroll County, AR, Cherokee County, KS, Crawford County, KS, Labette County, KS, Neosho County, KS, Barry County, MO, Barton County, MO, Christian County, MO, Dade County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Taney County, MO, Ottawa County, OK

The radar

The Springfield radar (KSGF), 79 km from the middle of the area, began a volume at 22:41 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.

Severe Thunderstorm Watch 69Mar 30, 8:50 PM CDT

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.7 hours before the alert went out and 41 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 709 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 138 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
Mar 30, 10:24 AM CDT	Mesoscale Discussion	SPC	Little River, Sevier	96 min
Mar 30, 2:33 PM CDT	Severe Thunderstorm Watch	SPC	Lafayette, Miller	3 hr
Mar 29, 10:21 PM CDT	Mesoscale Discussion	SPC	Ellis, Graham, Jewell, Osborne, Phillips, Rooks and 2 more	54 min
Mar 30, 1:46 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Chase, Cherokee, Coffey and 15 more	89 min
Mar 30, 2:04 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 21 more	9 hr
Mar 30, 3:53 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 23 more	67 min
Mar 29, 7:01 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Comanche, Custer and 15 more	89 min
Mar 29, 9:24 PM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Cotton, Jefferson, Johnston and 5 more	96 min
Mar 29, 10:30 PM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Carter, Cotton, Jefferson, Johnston and 2 more	5 hr
Mar 30, 1:21 AM CDT	Mesoscale Discussion	SPC	Bryan	114 min
Mar 30, 2:21 PM CDT	Mesoscale Discussion	SPC	Choctaw	84 min
Mar 30, 4:53 PM CDT	Mesoscale Discussion	SPC	Beckham, Caddo, Custer, Greer, Harmon, Jackson and 3 more	97 min
Mar 30, 6:06 PM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Caddo, Carter, Coal, Comanche and 14 more	7 hr

Nearby

Mesoscale Discussions in Missouri, 2013 Mesoscale Discussions in Kansas, 2013 Mesoscale Discussions in Arkansas, 2013 Every mesoscale discussion in 2013

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.