Subj : MESO: Mesoscale Discussion 0550 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Sun Apr 28 2024 00:31:41 ACUS11 KWNS 280031 SWOMCD SPC MCD 280030=20 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=20 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 https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7Y0aCSAch4860_94w9W0iSDosr057_O16zUK6QJj7i4xebLhqnyX29OBpsrpm4LeX6aqzIIsk= MoQUQCiuFFOc5MMk2c$ for graphic product... ATTN...WFO...TSA...FWD...OUN...SJT...LUB...AMA... LAT...LON 34720012 36989633 35859456 33139792 32830002 34720012=20 =3D =3D =3D To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .