Alert archive / Kansas / Mesoscale Discussions in 2006

Mesoscale Discussion 635

April 24, 200610 counties in Kansas; 8 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2006, 2:05 AM CDT for 10 counties in Kansas; 8 counties in Nebraska. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Apr 24, 2006, 2:05 AM CDT (07:05 UTC)
Expired: Apr 24, 2006, 3:30 AM CDT
In force: 85 min
Issued by: the Storm Prediction Center

Counties Cheyenne County, KS, Decatur County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Chase County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 100 km from the middle of the area, began a volume at 07:06 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.1 hours before the alert went out and 150 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: 307 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1787 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

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
Apr 23, 7:58 PM CDT	Mesoscale Discussion	SPC	Anderson, Coffey, Dickinson, Franklin, Geary, Lincoln and 8 more	92 min
Apr 23, 9:26 PM CDT	Mesoscale Discussion	SPC	Anderson, Coffey, Dickinson, Franklin, Geary, Lincoln and 8 more	64 min
Apr 23, 9:47 PM CDT	Mesoscale Discussion	SPC	Anderson, Coffey, Dickinson, Franklin, Geary, Lincoln and 8 more	88 min
Apr 23, 10:10 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Rawlins, Sheridan, Thomas	95 min
Apr 23, 10:35 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Gove, Graham, Logan, Norton and 5 more	4 hr
Apr 24, 1:27 AM CDT	Mesoscale Discussion	SPC	Allen, Barber, Butler, Chase, Chautauqua, Cowley and 16 more	2 hr
Apr 24, 7:32 AM CDT	Mesoscale Discussion	SPC	Allen, Butler, Chautauqua, Cowley, Elk, Greenwood and 5 more	88 min
Apr 24, 7:49 AM CDT	Severe Thunderstorm Watch	SPC	Allen, Butler, Chautauqua, Cowley, Elk, Greenwood and 5 more	5 hr
Apr 24, 1:13 PM CDT	Mesoscale Discussion	SPC	Barber, Comanche	2 hr
Apr 24, 1:36 PM CDT	Tornado Watch	SPC	Barber, Butler, Comanche, Cowley, Harper, Harvey and 9 more	7 hr
Apr 24, 3:18 PM CDT	Mesoscale Discussion	SPC	Anderson, Atchison, Brown, Chase, Clay, Cloud and 26 more	117 min
Apr 24, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Bourbon, Chase, Chautauqua, Cherokee and 19 more	7 hr
Apr 24, 6:17 PM CDT	Mesoscale Discussion	SPC	Butler, Cowley, Harper, Harvey, Kingman, Sedgwick and 1 more	88 min

Nearby

Mesoscale Discussions in Kansas, 2006 Mesoscale Discussions in Nebraska, 2006 Every mesoscale discussion in 2006

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.