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.

[s2If current_user_can(access_s2member_level1)]

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.

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_0

Thu 22

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_48

Sat 24

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_96

Mon 26

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_144

Wed 28

Geopotential3250032hPa32and32Temperature32at3285032hPa_North32America_192

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.

wk1_wk2_20130818_NAsfcT

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

wk3_wk4_20130818_NAsfcT

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!

p168i

[/s2If][s2If is_user_logged_in() AND current_user_cannot(access_s2member_level1)]

That’s it, [s2Get constant=”S2MEMBER_CURRENT_USER_DISPLAY_NAME” /]!

To continue reading, you need to have a valid subscription to access premium content exclusive to members. Please join a subscription plan if you would like to continue.[/s2If][s2If !is_user_logged_in()]

Sign in to read the full forecast…

Not yet a member? Join today for unlimited access

Sign up to markvoganweather.com today to get unlimited access to Mark Vogan’s premium articles, video forecasts and expert analysis.
[/s2If]

Follow us

Connect with Mark Vogan on social media to get notified about new posts and for the latest weather updates.

Subscribe via RSS Feed Connect on YouTube

Leave a Reply

Top