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Saturday, November 26, 2011

Low to Move East, Deepen

It appears that the cold front moving east will ignite an area of low pressure out by the Tennessee region. This area of low pressure will be cut-off from the jet stream, thus keeping the system in place. When the low does form, the 700mb relative humidity values will also deepen within the low, and will thus increase chances for precipitation. 
This low will stay in position until a weak piece of energy will force the low northward and back into the jet stream. While the low is in position, however, models are predicting a piece of cooler air coming from the cold front to be cut off from the original cold air that the cold front is pulling. This colder air will turn counter-clockwise around the low and may produce some wet snow. Up to 4 inches of snow may be possible in Mississippi if this turns out as is projected.

We are currently producing a snow map for this system.

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