Because of the amount of moisture in the atmosphere, and the slow progress of the individual storms, repeated rains over the same areas could result in some impressive rain totals. Heavy rainfall and flooding remain the primary threat from Thursday’s weather.
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The Louisville area is in the 3-5 inch range with 5-7 inches for much of southern Indiana. Areas near the coast and offshore could see more storms form overnight, but these are likely only to effect the coast and may stay offshore entirely. Some areas near of Baton Rouge and New Orleans have seen 5-6 inches of rain since yesterday.
National Weather Service meteorologists say they expect an additional 2.2 inches of rain to fall on Friday in areas near Mobile, Alabama, with higher amounts possible in some areas. Flash flooding could occur with these storms as the downpours will be heavy and linger.
The good news is that the rain will bring an end to the oppressive heat and humidity that have smothered the region for the past several days. This change in our weather pattern will not only provide us with some beneficial rainfall, but also help put an end to the unrelenting heat. The upcoming situation is a prime example.
Heading into the weekend, a ridge of high pressure aloft (bulge in the jet stream) will expand westward from the East Coast. This trough will weaken as it moves toward the blocking ridge, while the surface front stalls.
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Heavy rain and flooding has caused Louisiana officials to closed state offices in 14 parishes.
