The threat for severe weather has increased for Alabama on Sunday.

NOAA’s Storm Prediction Center has added a Level 2 out of 5 risk for a large part of Alabama for Sunday in its forecast update on Saturday afternoon. It’s a big change — in previous forecasts only extreme north Alabama had a Level 1 risk.

A Level 2 risk means that scattered severe storms will be possible. The strongest of those could have damaging straight-line winds, large hail and heavy rain.

Severe storms aren’t a slam-dunk, however. The Storm Prediction Center acknowledged there was uncertainty in the forecast for how things would play out on Sunday because of model differences.

Rain and storms were already in the forecast for Alabama all day on Sunday, but forecasters are thinking the ingredients for severe storms could come into play, especially during the afternoon and evening hours.

Rain is expected to move out of Alabama on Monday, although scattered showers will be possible each day through the week. However, there is no severe weather in the forecast for Alabama — after Sunday — for the rest of the five-day forecast period.