Rain chances will be increasing across the Tennessee Valley throughout the day as an upper low tracks right over the state of Alabama, which is currently centered just south of the Memphis, Tennessee area. Generally light showers have been tracking over northwest Alabama over the past several hours. Expect the rain to get heavier throughout the day and spread northeast. Below is the latest radar image as of 9:55 am.
The large band of persistent rain from yesterday is just pushed to our east, with more bands of rain closer to the center of the low pressure in Mississippi, moving northeast as the low pressure moves east. With daytime heating and as the colder air associated with the upper low moves overhead, instability will increase, with a few storms possible later this afternoon. The pocket of cold air aloft will also enhance the threat for small hail later today, but no severe storms are expected. Locally heavy rain will be possible. Below is a regional look of the satellite and radar.
On average highs for early May should be in the upper 70s, with morning lows in the mid 50s. Instead, we had morning lows in the 40s, luckily no communities cooled into the 30s. Temperatures today will struggle to warm up as clouds thicken and rain chances increase. Most communities will see highs in the upper 50s and low to mid 60s, approximately 10-15 degrees below average.
Rain chances will persist overnight into Monday as bands of rain rotating around the upper low continue to track across the area. It will not be raining the entire time, there will be dry periods as well. We will be dodging more showers and storms throughout the day Monday and overnight into early Tuesday, before the low finally departs and moves into Georgia. Another 0.25-1.25″ of rain is possible over the next 24-48 hours as the low tracks over the area, with locally higher amounts possible. Below is an image from the Weather Prediction Center of the Day 1-2 Quantitative Precipitation Forecast.
Talladega Forecast: Heading down to Talladega for the big race today? Don’t forget your rain boots and obviously your rain gear as more showers and storms are in the forecast for today. The Aaron’s 499 Sprint Cup Series is supposed to start at 12:00 pm. The likelihood of it being dry as the race starts is good, but rain chances will be increasing throughout the afternoon. Showers and storms will be around, but determining the exact time a shower or storm may be over the racetrack is not possible. Rain delays are likely today, but I think there is a good chance the race will be able to be held. Highs will be in the low to mid 60s.
Dogwood Festival: Expect a mostly dry forecast through the morning, with even some sunshine possible, before rain chances increase during the afternoon. The best chance to stay dry will be early on, by late this afternoon and evening there will be a good chance for some showers and storms. It will be cool again, with highs in the upper 50s and low 60s.
- Jennifer Watson
Facebook: Jennifer Watson WHNT