Arctic Air to Invade the Mid West while NW stays warm

By tomorrow, Arctic air will launch its first attack of migrating cold air into the NW. Since its still pretty early, the temps will stay more mild than you'd see if this was in mid winter. It is interesting to note that the Jet Stream is in a weird pattern for this time of year. We will continue to experience dry spring like weather for the time being, by this weekend the ridge will break down and we'll see a more zonal type of pattern to the NW. Highs are expected to plummit into the upper 50's in 7 days..as it looks of now. Enjoy your last taste of warm weather, because this is it.