Alert archive / Kansas / Mesoscale Discussions in 2008

Mesoscale Discussion 798

May 6, 200818 counties in Kansas; Harper County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 6, 2008, 3:14 PM CDT for 18 counties in Kansas; Harper County, Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 6, 2008, 3:14 PM CDT (20:14 UTC)
Expired: May 6, 2008, 5:15 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Clark County, KS, Comanche County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Ness County, KS, Scott County, KS, Wichita County, KS, Harper County, OK

The radar

The Dodge City radar (KDDC), 61 km from the middle of the area, began a volume at 20:18 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 268May 6, 3:45 PM CDT

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 8.2 hours before the alert went out and 67 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: 8 J/kg
Mixed-layer CIN: -477 J/kg
Mixed-layer LCL: 1252 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 147 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 6, 3:46 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Cheyenne, Clark, Comanche, Decatur, Edwards and 28 more	6 hr
May 6, 6:32 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Clay, Cloud, Comanche and 47 more	88 min
May 5, 7:59 PM CDT	Mesoscale Discussion	SPC	Cimarron	61 min
May 5, 8:32 PM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Beaver, Dewey, Ellis, Garfield, Grant and 6 more	5 hr
May 5, 10:56 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Ellis, Harper, Roger Mills, Texas and 2 more	64 min

Nearby

Mesoscale Discussions in Kansas, 2008 Mesoscale Discussions in Oklahoma, 2008 Every mesoscale discussion in 2008

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.