Saturday, September 19, 2009

Forecast changes ahead

Looks like the wet trend will continue into next week, but a few things will vary the rain chances ahead. A big trough is forming near the state of Washington, and this will play an influence in our forecast by midweek. Models currently keep this system to our West, and the placement of a weak High will create an area of suppression (or non lift) to occur in our region within the lower levels. Also the upper level mechanism will be lacking starting late Tuesday, which will begin to drop the confidence in rainfall.

Even though these mechanisms will setup for a lack of rain, we can still see showers develop within these circumstances. It's always interesting to see how models forecast the spread of rain in Mississippi while we are in this setup, but we'll have to keep a close eye on the day-to-day changes in the atmosphere to see what happens with the results of transition away from the Low Pressure-driven forecast we've been under recently.

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