Alert archive / Kansas / Mesoscale Discussions in 2013

Mesoscale Discussion 598

May 7, 201312 counties in Kansas; Beaver County, Oklahoma; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 7, 2013, 2:38 PM CDT for 12 counties in Kansas; Beaver County, Oklahoma; 5 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 7, 2013, 2:38 PM CDT (19:38 UTC)
Expired: May 7, 2013, 5:15 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Finney County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Scott County, KS, Seward County, KS, Beaver County, OK, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX

The radar

The Dodge City radar (KDDC), 89 km from the middle of the area, began a volume at 19:40 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 147May 7, 5:55 PM CDT

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 7.6 hours before the alert went out and 93 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: 1152 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 204 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
May 7, 5:54 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Clark, Comanche, Edwards, Ellis, Finney and 15 more	5 hr
May 6, 7:28 PM CDT	Mesoscale Discussion	SPC	Bailey, Cochran, Crosby, Hale, Hockley, Lamb and 3 more	92 min
May 7, 6:06 PM CDT	Mesoscale Discussion	SPC	Borden, Cottle, Crosby, Dawson, Dickens, Fisher and 10 more	84 min

Nearby

Mesoscale Discussions in Kansas, 2013 Mesoscale Discussions in Texas, 2013 Mesoscale Discussions in Oklahoma, 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.