...Central and southern High Plains... Isolated to widely scattered, late afternoon/early evening thunderstorm development is expected over the Front Range, as low-level easterly upslope flow evolves north of the cold front becoming more west-to-east oriented across Kansas through the day. Moderate westerly flow aloft atop low-level southerlies will likely result in sufficient shear organized/rotating updrafts. A deep mixed layer which will evolve through the afternoon over the High Plains suggests that storms moving off the higher terrain will be capable of locally strong wind gusts. An isolated landspout-type tornado also cannot be ruled out, though potential for greater tornado risk should remain limited by a dry/deep boundary layer. At this time, will maintain only marginal/level 1 categorical risk, due to anticipated storm coverage being sparse. Risk may be upgraded to slight risk in future outlooks if a bit more widespread development becomes more likely.

Upslope flow behind the cold front will help support isolated to scattered thunderstorm developing across the Front Range late Friday afternoon. Instability will be modest, but easterly/northeasterly surface wind beneath westerly flow aloft will contribute to moderate vertical shear and the potential for a few supercells. Large hail is possible, particularly with initial storm development, but the primary threat is expected to be strong wind gusts as the high-based storms move off the terrain. An isolated landspout-type tornado also cannot be ruled out, though potential for greater tornado risk should remain limited by a dry/deep boundary layer.