Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
003 ACUS48 KWNS 150940 SWOD48 SPC AC 150938 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0338 AM CST Fri Nov 15 2024 Valid 181200Z - 231200Z ...DISCUSSION... ...Monday/Day 4 to Wednesday/Day 6... A negatively-tilted mid-level trough is forecast to move quickly northeastward across the southern Plains on Monday. A cluster of strong to severe thunderstorms is expected to be ongoing at the start of the period over north-central Texas and southern Oklahoma. A few severe wind gusts will be possible in this area Monday morning. Thunderstorm development may continue ahead of the trough during the day from east Texas and the Sabine River Valley northward into eastern Oklahoma, eastern Kansas, the Ozarks and lower to mid Missouri Valley. An isolated potential for severe gusts will be possible but instability is expected to remain minimal. On Tuesday, a mid-level trough is forecast to move eastward into the southern Plains, as southwest mid-level flow remains over the Ohio and Tennessee Valleys. A cold front is forecast to move eastward into the lower Mississippi and Tennessee Valleys. Thunderstorm development will be possible during the day along and ahead of the front. Any severe threat ahead of the front is expected to be isolated due to limited instability. On Wednesday, an upper-level low is forecast to move into the Ohio Valley, as a cold front advances eastward toward the southern Atlantic Seaboard. The greatest potential for isolated severe storms would be ahead of the front in the Carolinas, and across parts of Florida. ...Thursday/Day 7 and Friday/Day 8... The upper-level low is forecast to move eastward from the central Appalachians on Thursday to the western Atlantic on Friday. The airmass across the continental U.S. is expected to be relatively dry making conditions unfavorable for thunderstorm development across most of the continental U.S. ..Broyles.. 11/15/2024