


Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
772 ACUS03 KWNS 241919 SWODY3 SPC AC 241918 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Sat May 24 2025 Valid 261200Z - 271200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM WEST-CENTRAL TEXAS EASTWARD TOWARD THE ARKLATEX... ...SUMMARY... A severe threat is expected on Monday across parts of the southern Plains, with large hail and wind damage. Marginally severe storms will also be possible outside the Slight Risk area from the southern Plains into the Southeast. ...Synopsis and Discussion... An upper trough will move out of the CO/NM area and into the southern and central Plains on Monday, proceeding toward the Mid MS Valley by Tuesday morning. This wave will bring cooling aloft and enhanced mid to upper level winds across the region. At the surface, high pressure will maintain cool conditions from the northern Plains across the Great Lakes and Northeast, with a large-scale boundary roughly from northern TX to the TN Valley. This boundary will be reinforced by bouts of thunderstorms producing outflow, and as such predictability is low regarding the exact position. Substantial thunderstorm activity will likely exist over parts of OK, northern TX, AR, and extending into the Southeast early on Monday. A southerly fetch of theta-e will persist over the southern plains to lower MS Valley during the day, which may maintain corridors of thunderstorms. Any severe wind potential with early activity will likely be tied to ongoing MCSs propagating into areas of large instability. As the upper trough emerges into the Plains, the most unstable air will develop south of the effective front/outflow composite boundary where heating is strongest, over northern to central TX within the Slight Risk area. A few supercells may develop initially with brief tornado/large hail threat but indications are that upscale growth into an MCS will occur with the primary risk becoming damaging winds. ..Jewell.. 05/24/2025 $$