Laramie Range Convection Evolves into Central High Plains Wind Machines — SevereWX

Thunderstorms igniting across the Laramie Range in southeastern Wyoming and central Colorado are set to march eastward into the central High Plains this afternoon and evening, packing a punch with damaging wind gusts up to 80 mph and hail to 1.75 inches.

A subtle mid-level weather disturbance combined with southeasterly winds pushing air upslope is boosting storm development over the high terrain. Strong westerly winds aloft will steer these storms toward Nebraska, Kansas, Colorado, and Wyoming plains areas.

Here's the kicker: steep low-level temperature drops in a dry, mixed air layer near the surface will cool storm downdrafts efficiently. This sets up merging cold air outflows from multiple storms, fostering linear clusters or segments ripe for severe straight-line winds later today.

Surface moisture ramps up eastward—dewpoints climb from the 40s-50s°F near the foothills to the low-to-mid 60s°F in western Kansas and Nebraska. While wind shear is modest at 25-30 knots, slowing peak organization, SPC forecasters expect enough juice for one or more Severe Thunderstorm Watches soon, with issuance timing hinging on storm clustering.

Peak threats: 65-80 mph wind gusts and 1-1.75 inch hail. Check the SPC graphic for the exact polygon covering parts of NE, KS, CO, and WY.

Stay prepared: Monitor local NWS alerts, secure outdoor items, and have a severe weather plan ready. Act fast if warnings hit your area.