Good Sunday to one and all. We have a busy week of weather ahead of us as arctic air takes control of the pattern across the lower 48. It’s a wintry pattern that will likely hang tough for, at least, the next couple of weeks. The cold is a given around here… snow is not, but we should have some chances.

The arctic front won’t arrive here until late Tuesday into early Wednesday. The slower timing of that will allow for temps to hit the 60s for Monday and Tuesday. Rain will increase from west to east during the day as winds crank up.

Wednesday will find temps 20-30 degrees colder than the day before, but the real cold arrives Thursday and Friday…

GFS 3

Highs both days should be in the 30s with lows possible dropping into the upper teens and low 20s. I say possibly because we will need clear skies for that to happen. There is still the chance for a weak system to bring some clouds or a few flakes our way by Friday. That looks like a low threat at this time.

The models continue to key on a potential stronger system for next weekend. Model deviations with track and strength are a given with any setup from a week away, but even more so this go around. It’s November and we have a very extreme setup across North America. The latest run from the European Model has a winter hit…

Euro 2

The GFS also shows the storm in question…

GFS 2

Again… track, intensity and impacts (if any) are a guessing game at this point.

Check out the air coming in behind that bad boy. -20c at 850mb is crazy cold for January and is nutso to see showing up in November.

As a matter of fact, the model runs of late have been the coldest I’ve witnessed in my forecasting career for November. Some of the numbers from the GFS go beyond crazy, but are fun to look at. Check out the lows behind the above storm…

GFS Temps

The model then throws a couple of other winter systems our way. It starts Thanksgiving week with snow on the ground and these temps…

GFS Temps 2

The chances of that actually happening are super duper slim, but I’ve never seen negative numbers show up on a model in November. Why am I showing that if it probably won’t happen? Because it illustrates how wild the pattern is and this is a weather blog. 🙂

Additional updates coming later today. Make it a good one and take care.