Subj : DAY2SVR: Nws Storm Predic To : All From : Mike Powell Date : Sat Feb 10 2024 08:47:00 ACUS02 KWNS 100700 SWODY2 SPC AC 100658 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1258 AM CST Sat Feb 10 2024 Valid 111200Z - 121200Z ....THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SABINE RIVER VALLEY...LOWER MISSISSIPPI VALLEY AND CENTRAL GULF COAST STATES... ....SUMMARY... A severe threat is expected to develop on Sunday from east Texas extending eastward across Louisiana into south-central Mississippi, and far southwest Alabama. Damaging wind gusts, isolated large hail and tornadoes will be possible. ....East Texas/Lower Mississippi Valley/Central Gulf Coast States... An upper-level low, and an associated 80 to 100 knot mid-level jet, will move into the southern Plains on Sunday. Ahead of the system, southwesterly mid-level flow will be in place across the Southeast. At the surface, a low will move from east Texas into the lower Mississippi Valley, with a moist airmass in place ahead of the low from southeast Texas to the central Gulf Coast. Surface dewpoints across the moist sector should be in the lower to mid 60s F. A cluster of thunderstorms may be ongoing at the start of the period near the northwestern edge of the moist sector across parts of east Texas. As the airmass destabilizes during the day, additional storms are expected to develop further to the east across the lower Mississippi Valley and central Gulf Coast region. Strong deep-layer shear is forecast to be present on Sunday over much of the southeastern U.S. This will help storms organize during the day, with a severe threat likely developing. Supercells associated with isolated large hail will be possible across parts of east Texas and Louisiana on Sunday afternoon, where forecast soundings show 700-500 mb lapse rates near 7.5 C/km. As a cluster of thunderstorms organizes during the day, embedded supercells and short line segments should be capable of producing isolated wind damage. A tornado threat is also expected to develop across the lower Mississippi Valley during the afternoon, with the threat gradually spreading eastward into the central Gulf Coast states by evening. There are a couple of limiting factors for this coming event, which introduce uncertainty concerning the severe threat magnitude. First, the mid-level jet is forecast to remain well to the west of the severe threat area throughout the event. Second, the low-level jet associated with the approaching system, is forecast to remain relative weak. Due to these less-than-ideal factors, will not upgrade from Slight Risk at this time. ...Broyles.. 02/10/2024 $$ --- SBBSecho 3.14-Linux * Origin: Ilink: CCO - capitolcityonline.net (454:1/105) .