Tuesday, December 9, 2008

Severe Weather Threat Increasing

A line of severe thunderstorms currently extends from just north of Canton through Walthall. Tornado warnings are currently in effect for Webster, Choctaw, Montgomery, Atalla, and Holmes Counties. The most impressive storm appears to be in Atalla County with a strong velocity couplet to the southwest of Kosciusko. This storm may have the highest threat of a tornado in the next hour since it is very close to the surface warm front. This line of storms is still at least an hour or so away from affecting Oktibbeha County and most likely will impact the area after 9:00 p.m. Warnings will likely be issued very shortly so be prepared to take shelter when one is issued.

I note the temperature is steady our 65 but the dew point has risen to 62 now. The dew point may rise another degree or two before the storms move into the area. This will allow the storms to maintain their intensity when the arrive in our area. With the warm front expected to be in close proximity to us later, isolated tornadoes will be possible, but the highest threat for this area still appears to be damaging winds. The storms that extend from Madison to Atalla County appear to be taking on more of a quasi-linear convective system appearance on radar which will only enhance the potential for strong winds later. I'll have another update later.

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