Sunday Morning, August 30, 2015
Meteorologist Jake Reed
More clouds than sun Sunday with periods of rain or storms
An upper low spinning over the far northern Gulf combined with deep amounts of moisture over Alabama have translated into widespread light rain over much of the northern half of the state early Sunday morning. A piece of energy pinwheeling around the northern side of the upper low will keep a fairly large area of light rain over the Tennessee Valley during the morning hours Sunday.
The light rain won’t amount to much in most spots, but it will keep the ground damp. Clouds will be more common than sun today, and temperatures across much of the area will have a hard time getting out of the 70s if the clouds remain thick enough. Localized areas of heavier rain and storms may develop during the afternoon, but they shouldn’t be as widespread as Saturday. Rain amounts of over 0.25 inches will be limited to only a few neighborhoods Sunday.
A steamy start to September
The chance for widespread measurable rain is negligible Monday and Tuesday as the upper low responsible for Saturday and Sunday’s rain drifts over south Texas. With more sunshine, afternoon temperatures will peak in the upper 80s and low 90s. There will be no noticeable change in humidity levels over the next seven days.
While afternoons will remain hot through the weekend, afternoon and evening showers and storms should become a bit more numerous beginning Wednesday afternoon. We’ll also be watching to see where the tropical moisture associated with former-Tropical Storm Erika tracks.
Erika degenerates near Cuba; some reorganization is still possible
Users of the WHNT News 19 app were the first to know that Erika is no longer a tropical storm. The National Hurricane Center issued its final advisory on the system Saturday morning. The tropical wave will still produce a tremendous amount of rain over Florida in the coming days. Some reorganization is possible over the eastern Gulf, but the environment is not overly conducive. Depending on where what’s left of Erika goes during the Wednesday- Thursday timeframe, we may have to significantly adjust our extended forecast.
If Erika stays east of the Tennessee Valley, we’ll be hotter with lower rain chances. Because the system no longer has a closed low-level circulation, it’s much harder to discern a future path. Stay tuned to future forecasts and expect adjustments over the coming days.
SUNDAY: More clouds than sun. Areas of mainly light rain will be common during the morning. Localized pockets of heavier rain or storms may develop in the afternoon. High: 82. Rain: 60%. Wind: ESE 5-10.
SUNDAY NIGHT: A few showers or storms continue through the early evening hours. The sky becomes partly cloudy after midnight and dense fog is possible. Low: 67. Rain: 30% between 6 and 10 p.m. Wind: ESE 3-6.
MONDAY: A mix of clouds and sun. Measurable rain is unlikely. High: 90. Wind: SE 3-9.
TUESDAY: Partly sunny, hot and humid. Measurable rain remains unlikely. High: 92. Wind: Light and variable.
WEDNESDAY: Hot and humid with afternoon and early-evening showers and storms a bit more numerous, but not everywhere. High: 91. Rain: 20%. Wind: Light and variable.
THURSDAY: Partly cloudy with scattered showers and a few storms. Best chance of rain in the afternoon. High: 92. Wind: Variable 3-6. Rain: 20%.
FRIDAY: Partly sunny. Humid with some scattered, hit-or-miss storms mainly in the afternoon. High: 92. Wind: SE 3-6. Rain: 20%.
SATURDAY: Partly sunny and humid. A lower rain chance is included for the possibility of at least a few afternoon storms. High: 90. Rain: 30%.