ZCZC SPCSWOMCD ALL
ACUS11 KWNS 280030 
SPC MCD 280030 
OKZ000-TXZ000-280130-

Mesoscale Discussion 0550
NWS Storm Prediction Center Norman OK
0730 PM CDT Sat Apr 27 2024

Areas affected...Southern Plains

Concerning...Severe potential...Tornado Watch likely 

Valid 280030Z - 280130Z

Probability of Watch Issuance...95 percent

SUMMARY...Tornado watch will be issued soon across the southern
Plains from northwest TX across much of OK.

DISCUSSION...Leading edge of large-scale ascent is spreading across
the southern high Plains early this evening. Agitated boundary-layer
cu field is deepening along the dryline over TX, indicative of the
approaching trough. Convection is expected to increase in areal
coverage into the southwest flank of ongoing southwest-northeast
MCS, then gradually shift east. 00z sounding from OUN exhibited very
strong shear (400m2/s2 0-3km SRH) with MLCAPE around 2300 J/kg,
though slightly capped. Supercells and thunderstorm clusters are
expected to continue, and increase in areal coverage later this
evening as the trough shifts east. New tornado watch is warranted.

..Darrow/Smith.. 04/28/2024

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

ATTN...WFO...TSA...FWD...OUN...SJT...LUB...AMA...

LAT...LON   34720012 36989633 35859456 33139792 32830002 34720012 

NNNN