02 December 2011

Update

High pressure is going to dominate the regional weather tonight. The clouds are still hanging around the western half of the region right now but those will go away in a little bit. We’ll go for mostly clear skies tonight and tomorrow morning. Our next system will begin to develop in the south and this is going to usher in some “warmer” air compared to what we’ve been seeing but it will also bring in the moisture and some rain showers towards the region.

Tomorrow we can expect a low pressure to develop down in the central Plains late tomorrow morning/early tomorrow afternoon. This low pressure will be found in front of an upper level trough which will extend down into the Plains.

Low pressure centre will start to deepen as it makes a beeline towards the region with its trailing cold front. This low pressure wont be as strong as the one we saw a few days ago, but it’ll be around 1010-mbs when it passes to the west of Chicago and that’ll be enough to introduce some weak temperature advection into the region.

Low pressure will continue to head northeastward through the western half of the Great Lakes region. This will drag the cold front through the region, but then stall it out on the day Sunday and this is going to stall out just off in the eastern half of the region. It is with this stalling that those waves of low pressure will ride along it and allow for precipitation to remain in the region – mainly for the eastern half of the region for the heaviest, but the western half of the region will pick some up as well.

Front remains stationary in the eastern half of the region over the next day or two after Monday and it wont be until another low pressure centre develops at the southern end of it that the low will begin to move.

I’ll have a full update coming up around 8.30 p.m., but for now, I am Timmy Albertson and that’s the weather!

No comments:

Post a Comment