ACUS03 KWNS 010716 SWODY3 SPC AC 010715 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0215 AM CDT Sat Jun 01 2024 Valid 031200Z - 041200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM WESTERN/NORTHERN OK INTO SOUTHERN KS...SOUTHERN MO...AND NORTHERN AR... ...SUMMARY... Isolated strong to severe thunderstorms are possible from western/northern Oklahoma into southern Kansas, southern Missouri, and northern Arkansas on Monday. ...Synopsis and Discussion... Predominantly zonal flow is expected to be in place over the central CONUS early Monday morning, with at least some potential for a convectively augmented vorticity maximum to be in the lower MO Valley vicinity. This largely zonal flow is forecast to remain in place until late Monday night/early Tuesday morning when some modest amplification begins to develop ahead of a strong shortwave trough expected to move quickly from the Pacific Northwest to the northern High Plains. A warm and moist airmass will likely be in place from the central/southern Plains into Lower/Mid MS Valley, but the lack of notable shortwave troughs will result in mesoscale features acting as the primary impetus for thunderstorm development. Some guidance suggests an outflow boundary from Sunday night's thunderstorms could initiate in south-central/southeast KS and southern MO vicinity. Shear will likely be modest, but strong buoyancy could still result in severe storms. Isolated severe thunderstorms are also possible along the dryline in western OK. A surface low is expected to move northeastward across the northern Plains late Monday night through early Tuesday morning. A cold front will sweep southeastward in its wake, supporting isolated thunderstorm development. Limited buoyancy should mitigate the overall severe potential. ..Mosier.. 06/01/2024 $$