Tuesday, June 30, 2009

Dry Heat

It was quite refreshing if you were able to get outside just before sunrise this morning, but temperatures are quickly warming into the 70s. The quick warm up will continue through the morning with temperatures near 90 by noon. High pressure at the surface will supply us with northerly winds, which will keep dew points in the 50s and 60s today. This will ensure that the heat index won't be a problem, but it will be a dry heat this afternoon as highs top out near 94.

The weather may be a little more tricky to forecast tonight as our upper air pattern is dominated by northwesterly flow associated with a big upper low over the Great Lakes. A subtle shortwave will eject out of this upper low tonight and will likely move just to our north. It's possible that a few showers could develop early tomorrow morning across Tennessee and Arkansas in advance of this energy. If a complex does develop, the upper air flow would move it very close to our area. On the other hand, it would be encountering a slightly less stable environment in East Central Mississippi so it's very likely that it would be weakening or even dissipate before it impacts the area. However, a few clouds will be generated by the upper level wave, and this may only allow temperatures to drop to 67 tomorrow morning. Looking ahead, the 4th of July weekend looks cooler, but the price to pay will likely be better rain chances. I still don't think many folks will gripe about that.

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