Steering level overview and outlook
The 500mb steering level over the continent is about to shift sharply into a pattern that resembles mid-fall. Given the time of year and the amount of available daylight to heat the atmosphere, it will take a bit of time for the temperatures to catch up to it and cool down. We've had a taste of it in the past couple of mornings with cool, comfortable, below normal starts. With the transition to fall already occurring in the overall pattern, there will be more of that.
Thursday 8 AM to Tuesday 8 AM - The forecast steering level put into motion here over the next few days shows a few things. It's basically full-on winter in the Arctic above Hudson Bay noted with the greens and blues. The death ridge over the south is in the process of being shoved to the west but will grow taller and reach into the Yukon by early next week. Incredible blocking over the Atlantic and the deepening trough over the east is where I have some concerns. The upper-low associated with TS Franklin moves northward and could be a CAT2 hurricane affecting Bermuda early next week. The long-term ideas point to more of a concern for the Canadian Maritimes than Maine, but it is too early to write it off. That is ridiculous blocking ridge over the Atlantic, and with the deepening trough to the west over the Great Lakes, it is all about timing and strength of all the ingredients there that will determine where Franklin goes.
Showers and storms Friday & Saturday,