Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
613 ACUS48 KWNS 080833 SWOD48 SPC AC 080831 Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0331 AM CDT Fri May 08 2026 Valid 111200Z - 161200Z ...DISCUSSION... ...Monday/Day 4 to Wednesday/Day 6... Mid-level northwesterly flow is forecast to persist across much of the central and eastern U.S. during the period from Monday to Wednesday. A cold front is forecast to move through the Southeast on Monday and into the Gulf and Florida on Tuesday and Wednesday. Isolated severe thunderstorm development will be possible near and ahead of the front each day, with the greatest potential for severe Monday afternoon and evening in parts of southern Alabama, southern Georgia, northern Florida and the coastal Carolinas. Isolated severe wind gusts is expected to be the primary threat. Further to the north on Tuesday, another cold front is forecast to move southward through the central Plains and mid Mississippi Valley. Although low-level moisture is forecast to remain somewhat limited, enough instability could develop for an isolated severe threat. The greatest potential would be in eastern Missouri and southern Illinois in conjunction with a mid-level jet moving southeastward through the region. Hail and isolated severe gusts will be possible. A marginal severe threat could again develop near the associated trough over the central Appalachians Wednesday afternoon. ...Thursday/Day 7 and Friday/Day 8... A shortwave ridge is forecast to move eastward toward the Mississippi Valley on Thursday, as another shortwave ridge moves into the High Plains on Friday. In the wake of each ridge, model forecasts develop a north-to-south axis of instability in the Great Plains. Isolated severe storms will be possible within this unstable airmass on both Thursday and Friday. At this time, uncertainty is substantial late in the day 4 to 8 period. ..Broyles.. 05/08/2026