Stay Weather Aware tonight due to heavy rain and storms
Widespread rain with embedded thunderstorms will continue to move across our area from west to east through the nighttime hours. Heavy rain and storms are expected in Tennessee and North Carolina for several hours. Residents in Georgia will not have heavy rain until later tonight, starting around midnight. It should end in Chattanooga by about 4AM and our far eastern counties by about 6AM on Sunday morning.
Much of our area is under a Level 1 Marginal Risk for an isolated strong to severe storm to develop. This includes Chattanooga, Cleveland, and Dalton. The primary threats with this system are lightning and locally heavy rainfall which may cause flooding, especially in poor drainage areas. There is potential for gusty damaging winds, but as of now, the air at the surface is staying stable meaning all the strongest winds are well above ground level. Finally, a few storms will produce small hail.
On average, total rainfall will be 0.25-0.75" for Georgia. All other areas should receive 0.75-1.5". Higher totals pushing 2-3" will be possible as storms develop and follow the same path. Likely areas for these high-end totals will be Marion, central portions of Hamilton, and Grundy Counties. Please be careful driving tonight due to standing water on roads.
The official high on Sunday will likely happen in the early morning hours in the low 60s. With rain ending by 6AM, clouds will quickly clear, meaning Sunday will be a mostly sunny day. The afternoon high should occur near lunchtime around 58. It will be windy from the west at 10-20mph and gusts at 25-30mph. Stronger gusts will be possible in higher elevations, so be careful with outdoor Christmas decorations.