Alert archive / Texas / Mesoscale Discussions in 2016

Mesoscale Discussion 392

April 15, 20164 counties in Kansas; Cimarron County, Texas County, Oklahoma; 15 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 15, 2016, 9:07 PM CDT for 4 counties in Kansas; Cimarron County, Texas County, Oklahoma; 15 counties in Texas. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued: Apr 15, 2016, 9:07 PM CDT (02:07 UTC)
Expired: Apr 15, 2016, 10:30 PM CDT
In force: 83 min
Issued by: the Storm Prediction Center

All 21 counties

Grant County, KS, Morton County, KS, Stanton County, KS, Stevens County, KS, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Castro County, TX, Dallam County, TX, Deaf Smith County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Swisher County, TX

The radar

The Amarillo radar (KAMA), 137 km from the middle of the area, began a volume at 02:09 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 92Apr 15, 9:50 PM CDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.1 hours before the alert went out and 138 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: 1077 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 1488 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.8

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
Apr 15, 8:20 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Logan, Rawlins, Sherman, Thomas, Wallace and 1 more	85 min
Apr 15, 9:53 PM CDT	Severe Thunderstorm Watch	SPC	Finney, Ford, Grant, Gray, Haskell, Hodgeman and 6 more	7 hr
Apr 15, 11:52 PM CDT	Mesoscale Discussion	SPC	Gray, Haskell, Meade, Morton, Seward, Stevens	113 min
Apr 16, 2:22 AM CDT	Mesoscale Discussion	SPC	Beaver, Cimarron, Texas	53 min
Apr 16, 1:50 PM CDT	Mesoscale Discussion	SPC	Beaver, Texas	85 min
Apr 16, 2:19 PM CDT	Tornado Watch	SPC	Beaver, Texas	9 hr
Apr 16, 6:14 PM CDT	Mesoscale Discussion	SPC	Beaver, Texas	2 hr
Apr 16, 6:52 PM CDT	Mesoscale Discussion	SPC	Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more	113 min
Apr 16, 3:53 PM CDT	Mesoscale Discussion	SPC	Coke, Crockett, Fisher, Glasscock, Howard, Irion and 6 more	67 min
Apr 16, 4:49 PM CDT	Tornado Watch	SPC	Borden, Callahan, Coke, Coleman, Concho, Crane and 25 more	7 hr

Nearby

Mesoscale Discussions in Texas, 2016 Mesoscale Discussions in Kansas, 2016 Mesoscale Discussions in Oklahoma, 2016 Every mesoscale discussion in 2016

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.