Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 881

May 27, 20175 states

The Storm Prediction Center issued this mesoscale discussion at May 27, 2017, 6:12 PM MDT for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 27, 2017, 6:12 PM MDT (00:12 UTC)
Expired: May 27, 2017, 8:15 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 22 counties

Baca County, CO, Bent County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Grant County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Union County, NM, Beaver County, OK, Cimarron County, OK, Texas County, OK, Dallam County, TX, Hansford County, TX, Hartley County, TX, Ochiltree County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 210 km from the middle of the area, began a volume at 00:12 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 00:00Z, 0.2 hours before the alert went out and 211 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: 322 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 2500 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 11:06 PM MDT	Severe Thunderstorm Watch	SPC	Cherokee	5 hr
May 27, 7:07 PM MDT	Mesoscale Discussion	SPC	Caddo, Canadian, Carter, Cherokee, Cleveland, Coal and 33 more	83 min
May 27, 8:07 PM MDT	Mesoscale Discussion	SPC	Beaver, Dewey, Ellis, Harper, Roger Mills, Woodward	53 min
May 27, 8:39 PM MDT	Severe Thunderstorm Watch	SPC	Beckham, Blaine, Custer, Dewey, Ellis, Garfield and 9 more	4 hr
May 27, 9:43 PM MDT	Mesoscale Discussion	SPC	Kingfisher, Major, Woodward	32 min
May 27, 10:47 PM MDT	Mesoscale Discussion	SPC	Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 17 more	58 min
May 27, 11:52 PM MDT	Mesoscale Discussion	SPC	McCurtain	23 min
May 28, 1:53 AM MDT	Mesoscale Discussion	SPC	Atoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 6 more	2 hr
May 28, 3:59 AM MDT	Mesoscale Discussion	SPC	Bowie, Camp, Cass, Collin, Delta, Denton and 7 more	2 hr
May 28, 12:34 PM MDT	Mesoscale Discussion	SPC	Bastrop, Bell, Bexar, Blanco, Burnet, Caldwell and 18 more	56 min
May 28, 2:09 PM MDT	Severe Thunderstorm Watch	SPC	Anderson, Atascosa, Austin, Bandera, Bastrop, Bell and 58 more	8 hr
May 28, 4:01 PM MDT	Mesoscale Discussion	SPC	Gregg, Harrison, Marion, Nacogdoches, Panola, Rusk and 1 more	59 min
May 28, 4:19 PM MDT	Severe Thunderstorm Watch	SPC	Angelina, Cherokee, Gregg, Harrison, Marion, Nacogdoches and 6 more	4 hr
May 28, 5:03 PM MDT	Mesoscale Discussion	SPC	Anderson, Bandera, Bastrop, Bell, Bexar, Blanco and 40 more	57 min

Nearby

Mesoscale Discussions in Kansas, 2017 Mesoscale Discussions in Colorado, 2017 Mesoscale Discussions in Texas, 2017 Every mesoscale discussion in 2017

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.