Your cooperative extension folks suggest the following for January Bermuda maintenance in your area:
"DO NOT fertilize at this time. Submit soil samples for analysis every 3 years to determine nutrient requirements. Based on the results of
your soil test, apply lime or sulfur to adjust soil pH.do not respond to water or fertilizer. This results in thin, weak areas that are prone to weed invasion.
Apply broadleaf herbicides as necessary for control of winter annual weeds like chickweed and henbit. Atrazine or simazine can be applied in November or December to control annual bluegrass and winter annual broadleaf weeds."
Here's the link for more details:
Blooming forsythia are generally a good clue that it is time to apply a pre-emergent, Dwayne. (That is, unless they've been forced into bloom by unseasonably warm temperatures.)
For us here it is time for Crabgrass pre- emergent on Bermuda
Since Bermuda never requires over seeding, Pre-Emergent can be applied at any time. It's never too late, except for the weeds that are already growing. Nitrogen is the fertilizer to avoid when the grass is dormant, but adding potassium will not promote green growth. Pre-Emergent prevents more than just crabgrass and will remain effective for up to four(4) months and crabgrass is a late germinator. A second application in 3 or 4 months will continue the protection. Read more here: http://www.community.homedepot.com/t5/Lawn-Care-Tools-Equipment/Bermuda-Lawn-Schedule-Atlanta/m-p/13435#M171
Some pre-emergents do not work well in cold weather so check labels carefully before you apply anything. Early to mid-February is the time to apply in your area. The usual saying is to apply when Forsythia is in full bloom. The Forsythia bloomed a bit early in some neighborhoods this year but I think mid-February is still not too late.