The Storm Prediction Center in Norman, Oklahoma has included parts of western and north central Nebraska, in a slight risk area for this afternoon and tonight, for severe thunderstorms. The main threats from storms that develop - will be large hail and damaging winds. There is a small threat for tornadoes from Valentine, to Ainsworth and O'Neill.
Surface low pressure will be strengthening across the Central Plains today. An upper disturbance will transition across the Northern Plains, and a warm front will lift north along the Nebraska/South Dakota border by late this afternoon. The combination of ample moisture, an unstable air mass, and a dryline located from the western Sandhills into southwestern Nebraska - and the aforementioned features above - will help set the table for thunderstorm development along any of the numerous boundaries expected to be in play.
The most rapid development could be from Wood Lake to Ainsworth, into western Holt county by late this afternoon. This area will also have the best chance for any tornadic development, as the warm front lifts north by late afternoon.
Please stay tuned to your local media or NOAA All Hazards Weather Radio for updated information as this event unfolds.