Alert archive / Kansas / Mesoscale Discussions in 2005

Mesoscale Discussion 579

April 17, 20055 states

The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2005, 5:50 PM MDT for 5 states. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Apr 17, 2005, 5:50 PM MDT (23:50 UTC)
Expired: Apr 17, 2005, 7:15 PM MDT
In force: 85 min
Issued by: the Storm Prediction Center

All 50 counties

Baca County, CO, Bent County, CO, Kiowa County, CO, Prowers County, CO, Clark County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Scott County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Wichita County, KS, Harding County, NM, Quay County, NM, Union County, NM, Beaver County, OK, Cimarron County, OK, Harper County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX

The radar

The Amarillo radar (KAMA), 124 km from the middle of the area, began a volume at 23:52 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.8 hours before the alert went out and 124 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: 65 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 919 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -120 m²/s²
0-3 km storm-relative helicity: -96 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 17, 1:25 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 3 more	3 hr
Apr 17, 2:20 PM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Kiowa, Prowers	8 hr
Apr 17, 1:50 PM MDT	Mesoscale Discussion	SPC	Bernalillo, Chaves, Colfax, Curry, De Baca, Eddy and 16 more	2 hr
Apr 17, 3:35 PM MDT	Severe Thunderstorm Watch	SPC	Chaves, Curry, De Baca, Eddy, Guadalupe, Lea and 2 more	6 hr
Apr 17, 5:28 PM MDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Eddy, Guadalupe, Lea and 2 more	2 hr

Nearby

Mesoscale Discussions in Kansas, 2005 Mesoscale Discussions in Texas, 2005 Mesoscale Discussions in Colorado, 2005 Every mesoscale discussion in 2005

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.