Subj : DAY2SVR: Nws Storm Predic To : All From : Mike Powell Date : Sat Aug 09 2025 09:09:14 ACUS02 KWNS 090558 SWODY2 SPC AC 090556 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1256 AM CDT Sat Aug 09 2025 Valid 101200Z - 111200Z ....THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM EASTERN COLORADA ACROSS KANSAS AND INTO PARTS OF MISSOURI... ....SUMMARY... Isolated severe thunderstorms are possible from parts of eastern Colorado across southern Kansas and into northern Missouri. Hail may occur over western areas, with locally strong gusts over eastern areas. ....Synopsis and Discussion... On Sunday, a relatively weak and broad upper trough will exist across the central and northern Plains, with modest southwest flow aloft averaging 20-35 kt extending from CO/KS into the upper Great Lakes. While winds aloft will not be particularly strong, 500 mb temperatures to -10 C will extend as far south as northern NM and OK. At the surface, high pressure will exist over much of the Intermountain West and into the central Plains. A boundary will stretch roughly from the TX Panhandle into northern MO/IL, with eastern parts of the boundary associated with early day storm outflow. Two primary areas of isolated severe potential will exist. One will be from northern MO into eastern KS, south of the composite front and where daytime heating and 70s F dewpoints will lead to over 3000 J/kg MUCAPE, with lightly veering winds with height. The result will be evolving/propagating areas of storms with locally strong wind gusts during late afternoon and into the evening as southerly winds increase at 850 mb. The other area will be along the Front Range during the late afternoon, and extending east/southeast near the boundary into southern KS. Here, easterly surface winds in the post-frontal regime over CA and cool temperatures aloft combined with 30 kt midlevel southwesterlies may favor initial cells with hail. With time, activity should aggregate outflows with sporadic severe gusts possibly into KS or parts of the OK/TX Panhandles. ...Jewell.. 08/09/2025 $$ --- SBBSecho 3.28-Linux * Origin: ILink: CCO - capitolcityonline.net (454:3/105) .