####018002027#### ACUS48 KWNS 020858 SWOD48 SPC AC 020856 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0356 AM CDT Tue Apr 02 2024 Valid 051200Z - 101200Z ...DISCUSSION... ...Friday/Day 4 and Saturday/Day 5... An upper-level trough is forecast to move quickly eastward from the West Coast on Friday into the Desert Southwest on Saturday. Moisture return is forecast take place ahead of the trough across the southern and central Plains, with surface dewpoints reaching the 50s and possibly low 60s F, from north Texas into south-central Kansas. As large-scale ascent comes out into the southern and central Plains during the evening, scattered strong to severe thunderstorm development will be possible. Large hail and wind damage are expected to be the primary threats. There is still considerable uncertainty on Saturday, mainly due to the lack of low-level moisture and instability. ...Sunday/Day 6 to Tuesday/Day 8... The upper-level low over the Desert Southwest is forecast to move into the north-central U.S. on Sunday, as a cold front advances eastward into the Ark-La-Tex. Isolated to scattered strong thunderstorms will be possible along and ahead of the front. However, uncertainty is still considerable concerning the timing/placement of the front, and magnitude of instability. On Monday, a moist airmass is forecast to be in place across parts of the southern Plains and lower Mississippi Valley. Strong thunderstorm development will be possible during the afternoon and evening. However, a lack of large-scale ascent suggests any severe threat that develops will remain unfocused. The potential for a more widespread severe threat may increase across the southern and central Plains on Tuesday, as an upper-level low moves across the Desert Southwest. As forecast spatial uncertainty decreases for Monday into Tuesday, the addition of a 15 percent contour in later outlooks may considered. ..Broyles.. 04/02/2024