Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon Feb 27 2023 10:01:13 ACUS48 KWNS 271001 SWOD48 SPC AC 270959 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0359 AM CST Mon Feb 27 2023 Valid 021200Z - 071200Z ....SEVERE WEATHER OUTBREAK POSSIBLE ON D4/THU... ....DISCUSSION... ....Thursday/Day 4... A regional outbreak of severe weather appears increasingly likely Thursday afternoon and Thursday night including the potential for large hail, damaging winds, and tornadoes, some of which may be strong. Available guidance is in ample general agreement with the east/northeastward-ejection of an upper trough from the southern Rockies early Thursday to the Ozarks/ArkLaTex by late Thursday night. Owing to a stalling/decaying front early this week, respectable low-level moisture will exist across much of the Deep South in advance of this approaching upper-level system and its related intense deep-layer wind field. Current thinking is that this severe potential should steadily increase across central/eastern Texas and possibly southeast Oklahoma during the day. This risk should only increase/further organize into Thursday evening across the ArkLaTex/ArkLaMiss and Lower Mississippi Valley, and eventually the Tennessee Valley late Thursday night. ....Friday/Day 5... Severe-weather potential is expected to continue to Friday across the Southeast States including Georgia/north Florida and the Carolinas, and possibly as far north as parts of the Mid-Atlantic. This will be as the upper-level trough races northeastward from the Lower Mississippi Valley toward the Ohio Valley/Mid-Atlantic States. Very strong deep-layer winds will coincide with a modestly unstable warm sector ahead of a cold front and/or residual convection from Thursday night. Damaging winds and a few tornadoes could occur across the region. ....Saturday/Day 6 through Monday/Day 8... An inactive few days with limited deep convective/severe potential is currently expected this weekend into early next week. High pressure will likely be increasingly established east of the Rockies as richer low-level moisture is shunted toward the Gulf of Mexico. ...Guyer.. 02/27/2023 = = = 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 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .