Mesoscale Discussion 742

Issued

May 25, 2021, 10:10 PM CDT (03:10 UTC)

Expired

May 25, 2021, 11:15 PM CDT

In force

65 min

Issued by

the Storm Prediction Center

Concerning

Severe thunderstorm watch 204

The Lubbock radar (KLBB), 145 km from the middle of the area, began a volume at 03:13 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.

234 
ACUS11 KWNS 260311
SWOMCD
SPC MCD 260310 
TXZ000-OKZ000-260415-

Mesoscale Discussion 0742
NWS Storm Prediction Center Norman OK
1010 PM CDT Tue May 25 2021

Areas affected...west Texas

Concerning...Severe Thunderstorm Watch 204...

Valid 260310Z - 260415Z

The severe weather threat for Severe Thunderstorm Watch 204
continues.

SUMMARY...Threat for isolated large hail and downburst winds will
persist next couple hours across portions of west TX. WW 204 is
scheduled to expire at 04Z, but a local extension might be needed
for a portion of the WW.

DISCUSSION...Storms continue developing along the east-west oriented
boundary across the northern TX Panhandle with some backbuilding
noted with the westernmost storm. These storms remain organized as
supercells with hail in excess of 2.5 inches recently reported. The
surface layer is stabilizing, and convective inhibition is
increasing. However, forcing associated with a strengthening
southerly low-level jet interacting with the boundary might help to
sustain these storms for another 1-2 hours. 

Farther south, a cluster of widely scattered storms persist in the
area between Lubbock and Abilene. Tendency has been for these storms
to expand northeastward along an outflow boundary, but general trend
has been for most of this activity to weaken slightly. It is
probable that at least a couple of storms will persist beyond 04Z,
especially the activity just south of Abilene that appears to be
more organized.

..Dial.. 05/26/2021

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...OUN...SJT...LUB...AMA...MAF...

LAT...LON   32049921 31710010 32530100 34490158 35490194 36480040
            34369946 33209934 32049921

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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.