Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 574

April 27, 2022Clark County, Meade County, Kansas; Beaver County, Texas County, Oklahoma; 9 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 27, 2022, 10:39 PM CDT for Clark County, Meade County, Kansas; Beaver County, Texas County, Oklahoma; 9 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Apr 27, 2022, 10:39 PM CDT (03:39 UTC)
Expired: Apr 28, 2022, 12:45 AM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 156

Counties Clark County, KS, Meade County, KS, Beaver County, OK, Texas County, OK, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 114 km from the middle of the area, began a volume at 03:40 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

Dodge City, (KDDC), launched 00:00Z, 3.7 hours before the alert went out and 222 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: 734 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 2005 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 270 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 27, 7:28 PM CDT	Severe Thunderstorm Watch	SPC	Clark, Comanche, Ford, Gray, Haskell, Kiowa and 4 more	7 hr
Apr 27, 8:38 PM CDT	Mesoscale Discussion	SPC	Clark, Comanche, Edwards, Ford, Kiowa, Meade and 3 more	2 hr
Apr 28, 3:39 PM CDT	Mesoscale Discussion	SPC	Brewster, Crane, Pecos	96 min

Nearby

Mesoscale Discussions in Texas, 2022 Mesoscale Discussions in Kansas, 2022 Mesoscale Discussions in Oklahoma, 2022 Every mesoscale discussion in 2022

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.