Drizzle today, rain Saturday, and a wintry mix Sunday
Good Afternoon Tennessee Valley,
It's a gloomy December day with light drizzle and calm winds. Clouds overnight and this morning did us a nice favor, as lows only dropped to the upper 30s this morning. Due to clouds, highs today will stay once again in the mid-40s, which is 10 degrees below normal for December 7th. We'll need to watch for a drizzle chance returning this evening, mainly after 6PM, but this is not expected to impact travel.
Saturday light rain will be increasing in the morning. Newest data suggest rain showers beginning by 6AM-8AM in north Georgia and increasing in Chattanooga by 8AM-10AM. Rainfall during the day on Saturday will be steadily increasing, becoming heavy on Saturday night. Rainfall totals just Saturday will range from 0.10" to 0.25" near US 40. Higher amounts are likely southward towards Athens and Spring City, around 0.25" to 0.50" to near Chattanooga and Cleveland, 0.50" to 1", and those near Dalton, GA and Fort Payne, AL amounts of 1" to 1.5". A brief mix on Saturday afternoon will be possible on the plateaus across Grundy/Van Buren/and Sequatchie, but no winter accumulation is expected.
Rain will continue through Sunday, bringing a brief break in the rain on Sunday afternoon. Rain totals for the weekend are very likely to reach 1" to 2.5", where localized flooding will be possible where heaviest rainfall occurs in north Georgia. A wintry will be increasing Sunday night through Monday morning, bringing minor snow accumulation on grassy areas. Snow accumulation of 0.10" to 1" will be possible across northern Hamilton, northern Marion, Sequatchie, Rhea, Van Buren, Grundy, Meigs, McMinn, Monroe, and east Cherokee county. Accumulation, however, will be limited to grassy areas as the air temperature Sunday night will be near 32-34. Those on the plateaus will have the best chance for anything to stick.
The other concern will be the slick spots possible on Monday morning. Minor ice accretion will be possible across northeast Georgia by Monday morning. Even with a wet pavement, bridges will be icing over, especially over Gilmer, Fannin, and Murray counties if the air temperature can drop to 32 in these spots. A glaze of ice over these counties by Monday morning is a possibility.
Gusty winds are also expected late Saturday night into Sunday by noon. Wind gusts of 20-30 mph look possible across north Georgia during this time.
As new data continues to come in, please check back and download the WRCB Weather App for the newest info.
- 12PM: Cloudy, 42
- 3PM: Cloudy, 45
- 6PM: Cloudy, drizzle chance, 43