[T]he second and greater threat will be during the afternoon and evening as low-pressure approaches from the west along the warm frontal boundary.
This could initiate rapid development of severe thunderstorms that could be accompanied by damaging winds and tornadoes. it is possible that a derecho, a long-lasting and rapidly-moving complex of severe thunderstorms could sweep across this area. At this time, awareness of the severe storm potential is key so plans of action can be readied if needed.
I recalled the word derecho, and knew that it's bad thing, but I had to look it up.
Plan of action that will be readied: Fully charge jump starter. It has an AC power outlet to keep the router going. Be sure all other devices are fully charged, pour a glass of wine, and watch more episodes of The Bridge or Bloodline. Potential monkey wrench: down Comcast cable.