Tonight’s run of the ECMWF now has next week’s very cold air pushing south of the US-Canada border and this could mean an early snowstorm as well as 15-30 below normal temperatures anywhere from Montana to the interior Northeast.

While the arctic hound comes acalling next week down the spine of the continent, often during October cold blasts, a strong ridge will build west towards the Pacific coast of California as well as northwards allowing temperatures to soar all the way to the beaches of SOCAL.

Monday through Wednesday has an elevated chance at seeing temperatures reach 100F in Downtown Los Angeles with near 90s stretching all the way to Medford, OR.

Check out the ridge and 850 temps for Monday!

Check out the chart for Thursday. Notice how low the thicknesses are over Central Canada down into the Northern Plains.