Alert archive / Kansas / Mesoscale Discussions in 2007

Mesoscale Discussion 564

April 24, 20074 counties in Colorado; 9 counties in Kansas; Chase County, Dundy County, Hitchcock County, Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2007, 1:48 PM MDT for 4 counties in Colorado; 9 counties in Kansas; Chase County, Dundy County, Hitchcock County, Nebraska. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued: Apr 24, 2007, 1:48 PM MDT (19:48 UTC)
Expired: Apr 24, 2007, 3:45 PM MDT
In force: 117 min
Issued by: the Storm Prediction Center

Counties Cheyenne County, CO, Kit Carson County, CO, Lincoln County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Logan County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Chase County, NE, Dundy County, NE, Hitchcock County, NE

The radar

The Goodland radar (KGLD), 40 km from the middle of the area, began a volume at 19:49 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

Denver, CO (KDNR), launched 12:00Z, 7.8 hours before the alert went out and 105 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: 566 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 98 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
Apr 23, 6:52 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Bent, Cheyenne, Crowley, Elbert and 10 more	113 min
Apr 23, 9:41 PM MDT	Tornado Watch	SPC	Kit Carson, Yuma	5 hr
Apr 24, 12:37 AM MDT	Mesoscale Discussion	SPC	Cheyenne, Kit Carson, Phillips, Yuma	83 min
Apr 23, 7:54 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Cheyenne, Clark, Comanche and 55 more	2 hr
Apr 23, 8:53 PM MDT	Severe Thunderstorm Watch	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	8 hr
Apr 24, 4:03 AM MDT	Mesoscale Discussion	SPC	Graham, Jewell, Lincoln, Mitchell, Norton, Osborne and 3 more	87 min
Apr 24, 9:04 AM MDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Cloud, Comanche, Edwards and 40 more	116 min
Apr 24, 9:48 AM MDT	Tornado Watch	SPC	Barber, Barton, Butler, Chase, Chautauqua, Clay and 41 more	10 hr
Apr 24, 1:03 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Cherokee and 26 more	87 min
Apr 24, 2:24 PM MDT	Tornado Watch	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Cherokee and 24 more	5 hr
Apr 24, 2:37 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Chautauqua, Clay and 33 more	83 min
Apr 24, 5:13 PM MDT	Mesoscale Discussion	SPC	Butler, Chase, Chautauqua, Clay, Cloud, Cowley and 17 more	62 min
Apr 24, 12:35 PM MDT	Mesoscale Discussion	SPC	Adams, Buffalo, Butler, Cass, Clay, Custer and 34 more	55 min
Apr 24, 12:48 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Buffalo, Clay, Dawson, Fillmore, Franklin and 21 more	5 hr

Nearby

Mesoscale Discussions in Kansas, 2007 Mesoscale Discussions in Colorado, 2007 Mesoscale Discussions in Nebraska, 2007 Every mesoscale discussion in 2007

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.