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A strong upper level weather system moved through the region during
the morning of December 20th, causing widespread rain and
thunderstorms across the area. Enough instability and moisture moved
north out of the Gulf of Mexico to combine with this strong system to
produce severe thunderstorms across the Highway 84 corridor. A severe
storm rapidly intensified just to the west of Brookhaven around 9 am.
This storm became a well-defined "bow echo" severe storm which moved
along the Highway 84 corridor from Brookhaven to Prentiss to Laurel
during the mid and late morning hours. "Bow echo" storms are mainly
associated with strong straight line winds, but can also occasionally
produce tornadoes. In this case, this storm produced 4 tornadoes
across parts of Lincoln, Covington, and Jones counties, along with a
number of reports of straight line wind damage.
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National Weather Service Forecast Office
