Focus Of Heat Centres On Dakotas, Minnesota, Relentless Southeast Rainfall

Written by on August 21, 2013 in United States of America with 0 Comments

After what has been a cool summer across the Northern Plains, the heat over the next 7-10 days will be centred over the Dakotas. Even today, highs are around the 100 degree mark over central North Dakota.

Thanks t0 a system tracking along the International border, the heat pulls back Thursday and the cooling kicks in right across the Lakes and Northeast towards this weekend but as a weak trough carves out over the Lakes and Northeast, so the heat comes roaring back into the Northern Plains and Upper Midwest this weekend into early and mid next week. The NAO is now at it’s most possible in a good couple of months and this signal along with the more favourable phases of the MJO are showing their hand. Don’t be surprised to see several days from Saturday through next Wednesday where record highs are tied or broken from eastern Montana to Wisconsin.

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Even Minneapolis may get close to 100 mid next week while Des Moines and Chicago push the mid-90s. A blast of real summer heat is coming back. It’s very much a come, go come type of setup.

Here’s the ECMWF upper chart/850mb temps through the rest of this week into next.


Thu 22


Sat 24


Mon 26


Wed 28


The CFSv2 as I’ve shown most days has the heat pull out in early September and it will come and go throughout the month after that.

Hot week 1, eases but still exists week 2.


By week 3 and 4 it’s gone from much of the nation except pulled west and focused over the interior NW.


The rains have been RELENTLESS across the Southeast and so these figures in the graphic below should be a no surprise really!

Source: AccuWeather

Source: AccuWeather

Good news is, although rains will still fall across the Southeast next 5-7 days, there won’t be nearly as heavy or persistent rain as we’ve seen of late. Many areas which have seen major flooding should be a breather.. for now anyway!


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