Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 1483

July 19, 201511 counties in Colorado; 12 counties in Kansas; Chase County, Dundy County, Hitchcock County, Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jul 19, 2015, 1:18 PM MDT for 11 counties in Colorado; 12 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: Jul 19, 2015, 1:18 PM MDT (19:18 UTC)
Expired: Jul 19, 2015, 3:15 PM MDT
In force: 117 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

All 26 counties

Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, Kiowa County, CO, Kit Carson County, CO, Lincoln County, CO, Otero County, CO, Prowers County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Greeley County, KS, Hamilton County, KS, Kearny County, KS, Logan County, KS, Rawlins County, KS, Scott County, KS, Sherman County, KS, Stanton County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Chase County, NE, Dundy County, NE, Hitchcock County, NE

The radar

The Goodland radar (KGLD), 93 km from the middle of the area, began a volume at 19:23 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 444Jul 19, 2:30 PM MDT

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 7.3 hours before the alert went out and 151 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: 1387 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 40 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
Jul 19, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Cheyenne, Crowley, Elbert, El Paso and 10 more	8 hr
Jul 19, 4:43 PM MDT	Mesoscale Discussion	SPC	Phillips, Sedgwick	2 hr
Jul 18, 6:41 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Gove, Logan, Rawlins, Sheridan and 3 more	6 hr
Jul 18, 7:30 PM MDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Dickinson, Doniphan, Douglas and 12 more	60 min
Jul 18, 9:54 PM MDT	Mesoscale Discussion	SPC	Decatur, Gove, Logan, Rawlins, Sheridan, Sherman and 2 more	96 min
Jul 19, 12:03 AM MDT	Mesoscale Discussion	SPC	Decatur, Ellis, Gove, Graham, Lane, Ness and 7 more	57 min
Jul 19, 1:57 AM MDT	Severe Thunderstorm Watch	SPC	Barton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 20 more	5 hr
Jul 19, 4:05 AM MDT	Mesoscale Discussion	SPC	Clay, Cloud, Geary, Jewell, Marshall, Ottawa and 4 more	85 min
Jul 19, 4:40 PM MDT	Mesoscale Discussion	SPC	Antelope, Blaine, Brown, Cherry, Garfield, Holt and 5 more	95 min

Nearby

Mesoscale Discussions in Kansas, 2015 Mesoscale Discussions in Colorado, 2015 Mesoscale Discussions in Nebraska, 2015 Every mesoscale discussion in 2015

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.