Record Cold For South Tonight, Pattern Flips Next Week, Montana Blizzard, 1st 0F!

Written by on October 26, 2013 in United States of America with 0 Comments

The cold continues in the Eastern half of the country and now that high pressure is settling over the Tennessee Valley tonight, clear skies, light winds and cold air in place should make for the coldest night of this current stretch with lows creeping close to freezing all the way to Atlanta, GA. I dipped into the upper 20s as far south as North Georgia this morning and even the mid-10s down to the North Carolina mountains with 14 for a low at Mount Mitchell according to Meteorologist Brad Panovich. It got into the low 20s over parts of West Virginia and points south of Chicago.

Here’s the national lows from this morning. Note it got down to 37 in Atlanta. It should get down to 33 or 34 tonight.

Source: weather.com

Source: weather.com

Here’s the departures from normal.

Source: weather.com

Source: weather.com

Note the large area of frost, freeze advisories for tonight. Notice that it extends further south compared to last night, reaching central Alabama and Georgia.

US

Here’s the NWS forecasted lows tomorrow morning across the Northeast.

MinT1_northeast

Here’s the Mid-Atlantic.

That low of 28 in Charlotte, NC would be a record and I’m sure there will be plenty others.

MinT1_midatlantic

As the high builds into the Southeast, so a southwest flow warms things back up over the Midwest and this sets the scene for early next week as ridging builds back into the east while the coldest air mass yet builds south over western Canada into the Northern Rockies.

A significant winter storm sets it’s sight’s on Montana, Idaho and Wyoming late weekend into Monday with likely blizzard conditions.

Here’s the latest surface chart by Monday.

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

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Latest GFS snow projections through 90 hours.

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

Note the surface pressure on the Alberta-Montana border.. 1040mb. That’s some seriously cold air and likely going to bring down the first subzero air of the season. Wouldn’t be surprised to see a few -5’s Tuesday morning as the sun comes up over western Montana.

Check out the 5,000ft level temps for the same time.

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

Here’s the surface temps.

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

Some of the known southern Alberta cold spots are sure to see 0F or -18C. What a flip from the recent warmth, especially when your going from well above normal low to mid-70s down to single digits. That’s this region for you. Bare in mind that wild swings are common here, especially in fall and spring.

With the +AO and eventual +NAO with near neutral PNA, I’m still expecting a more zonal with stormier pattern into November.

The CFSv2 continues to show warmth for November across most of the US which I agree with.

usT2mMonInd1

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