Tropical Storm Dexter Update: Map Shows Where Most Rain Could Fall
Newsweek AI is in beta. Translations may contain inaccuracies—please refer to the original content.
Forecast maps from AccuWeather illustrate which areas could see the most rainfall through the weekend, as Invest 93-L—a disturbance that meteorologists say could develop into Tropical Storm Dexter—traverses the Gulf Coast.
Why It Matters
So far in 2025, the Atlantic hurricane season has seen three named storms: Andrea, Barry and Chantal. The latter brought heavy rain and flooding to North Carolina earlier this month.
What To Know
According to AccuWeather, the areas at highest risk for flooding and operational disruptions include southern Louisiana—including Baton Rouge and New Orleans—southwestern Mississippi and parts of eastern Texas.
A forecast map from AccuWeather shows which areas could see the most rainfall through Saturday.
A forecast map from AccuWeather shows which areas could see the most rainfall through Saturday.
AccuWeather
The outlet said that rainfall is expected to intensify beginning Thursday, with the possibility of lingering over southern Louisiana through Friday before spreading into the Mississippi Valley over the weekend.
Widespread rainfall totals are forecast to range from four to eight inches, while isolated spots could see as much as eight to 12 inches, AccuWeather said, adding that rain falling at rates of one to three inches per hour may exceed the capacity of drainage infrastructure in metropolitan areas such as New Orleans.
"Flash flooding could result in power outages, travel delays, and supply chain disruption," AccuWeather said. "Flood-prone urban areas, including below-sea-level New Orleans, are at risk for significant disruption."
This forecast map from AccuWeather shows the system's expected path.
This forecast map from AccuWeather shows the system's expected path.
AccuWeather
An AccuWeather forecast map indicated that the system would move across Louisiana through Friday, reaching Arkansas by Saturday morning.
As of early Wednesday, the National Hurricane Center (NHC) was giving the system a "medium," 40 percent chance of cyclone development. This was a four-fold increase from Monday, when chances were reported at 10 percent.
In an update on Thursday morning, the NHC had downgraded chances to 30 percent, or "low."
What People Are Saying
AccuWeather lead hurricane expert Alex DaSilva told Newsweek: "Heavy rain is already moving through Louisiana and will continue over the next few days as the rainstorm slows down. Four to eight inches of rain can occur across a good portion of southern Louisiana leading to flash flooding and dangerous travel conditions."
Meteorologist Eric Davis, on X on Wednesday: "Invest 93-L continues to move westward along the Gulf coast. It still could become a tropical depression or Tropical Storm Dexter. Very heavy rain is headed towards Louisiana."
What Happens Next
Forecasts are subject to change, and meteorologists will continue to monitor the system.
The Atlantic hurricane season runs from June through November, while the Eastern Pacific hurricane season began on May 15 and lasts until November 30.
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