Since the beginning of the workweek, some locations have picked up more than 5 inches of rain, while most others have received an inch or so. Those scattered downpours will thin out as heat rises into the weekend.

Here is a breakdown of what to expect:

• Thursday & Friday: trending drier – less rain, heating up
• The Weekend: very warm and humid, mainly dry & sunny

Tonight & Tomorrow: As showers and thunderstorms decrease in coverage, tonight will be mainly cloudy with overnight lows dropping into the upper-60s. Some short-lived patches of fog may develop near dawn. Like previous days, a mostly cloudy morning will give way to some breaks of sun. As early afternoon highs hit the mid-80s, isolated showers and thunderstorms will develop, especially north of I-10. A little less total coverage around the area is anticipated as compared to previous days. Any storms will still be capable of downpours.

Up Next: As an upper-level ridge builds over the southeastern U.S. heading into the weekend, rain chances will steadily decrease. Friday and into the weekend, rain is unlikely. With drier conditions and increasing sunshine, temperatures will begin to climb. Highs will reach the upper 80s on Friday and Saturday, with Sunday through Tuesday expected to top out around 90 degrees. Unfortunately, rising humidity will add to the heat, pushing "feels like" temperatures into the mid-90s for the first time this year. Be sure to stay hydrated as your body adjusts to the warmer, steamier conditions.

River Flooding: The National Weather Service has issued a RIVER FLOOD WARNING for the Mississippi River at Red River Landing, Baton Rouge, Donaldsonville, and Reserve, as well as the Atchafalaya River at Morgan City until further notice.

• At Red River Landing, flood stage is at 48 feet. Moderate flooding is already occurring. A crest of 59 feet is expected around April 30. At this level, the east bank levee will be topped, and the prison farmland between the two levees will be inundated. Angola Landing will be under water, closing the ferry there. All river islands along the reach from Red River Landing to Baton Rouge will remain inundated with recreational camps and river bottom farmland under water. This gauge will fall below flood stage around May 12.

• At Baton Rouge, flood stage is 35 feet. Moderate flooding is already occurring. Major flood stage will be reached on Thursday, cresting at 41.5 feet on May 1. Around these levels, the grounds of the older part of Louisiana State University's campus become soggy. This includes the area around the Veterinary Medicine building, the Veterinary Medicine Annex, and Alex Box Stadium. Levees protect the city of Baton Rouge and the main LSU campus at this level. Caution is urged when walking near riverbanks. This gauge will fall below flood stage around May 9.

• At Donaldsonville, the flood stage is at 27 feet. Minor flooding is already occurring. A crest of 30.2 feet is expected around May 1—right at moderate flood stage. Around these levels, navigation becomes difficult for smaller river craft. Safety precautions for river traffic are urged. After cresting, the river will fall below flood stage around May 10.

• At Reserve, flood stage is at 22 feet. Minor flooding is forecast to begin Thursday. A crest of 23 feet is expected around May 1. Around these levels, slow-bell procedures will be enacted for river transportation. After cresting, the river will fall below flood stage around May 7.

• At Morgan City, flood stage of 6 feet may be reached on Saturday. Moderate flooding with a crest of 7 feet is forecast on Friday, May 2. At 7 feet, buildings at the foot of Ann Street on the riverside of the flood wall will flood as water overtops the Rio Oil Company dock. Buildings on the riverside of the Berwick floodwall will flood. River traffic restrictions will be strictly enforced. In addition, backwater flooding could potentially impact portions of areas around Lake Palourde and Stephensville.

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– Josh 

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