Francine poses flooding threat as remnants move into Tennessee Valley
Francine made landfall as a Category 2 hurricane on Wednesday afternoon south of Morgan City, Louisiana, and started weakening after landfall.
Flooding threatens Southeast as possible tropical trouble brews near coast
The remnants of Francine combined with a coastal low will result in tremendous amounts of rain for parts of the Southeast through the weekend.
A decaying Francine still has the potential to produce widespread rainfall, gusty winds and even an isolated tornado threat as far north as the mid-Mississippi Valley as the storm’s moisture envelope slowly pushes northward across the South through the end of the week.
Francine made landfall as a Category 2 hurricane on Wednesday afternoon south of Morgan City, Louisiana, and started weakening after landfall.
The center of circulation is expected to continue well inland, but the storm’s impacts could expand outward hundreds of miles.
Francine-related weather alerts, such as wind advisories, Flood Watches and other hazardous weather outlooks, have been posted as far north as southern Missouri and as far east as Tennessee as what is left of the tropical cyclone makes its way through the South.
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The biggest concern is that heavy rainfall may lead to the weakening of roots and falling trees despite the tropical cyclone being a shell of its former self.
"One of the things that really worries me about this setup is sometimes these saturated soils allow trees to come down more easily from the wind when the core of the hurricane moves ashore and that increases the power outages," said Jamie Rhome, deputy director of the National Hurricane Center.
Millions from the Gulf Coast into the mid-Mississippi Valley are under wind advisories, where gusts could reach at least 40 mph during the next 48 hours.
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How much rain is expected to fall?
As the tropical cyclone’s center generally works northward, a widespread swath of 2-5 inches of precipitation will occur through the early weekend.
Included in the heavy rainfall zone are communities such as Greenwood, Mississippi; Tuscaloosa, Alabama; Memphis, Tennessee; and Jonesboro, Arkansas.
Due to the intrusion of some dry air and how dry the soil already is, a widespread flooding event is not anticipated, but where rain bands stall or move repeatedly over the same area, localized flooding will be possible, especially in poor-drainage areas.
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The addition of wind shear, increasing dry air and rain bands that will occasionally travel through the Southeast will be the focal point of possible funnel clouds and brief tornadoes through at least Friday.
A few Louisiana parishes were placed under Tornado Warnings on Wednesday before Francine made landfall, but so far, no twisters have been reported.
Some tropical storms and hurricanes that make landfall along the Gulf Coast are notorious for their production of tornadoes, but, so far, that does not appear to be the case with Francine.
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Francine could be good news for some
The remnants of a hurricane could be welcome news for locales experiencing increasing drought conditions from the Gulf Coast into the southern Ohio Valley.
Expected rainfall totals of between 2 and 5 inches could significantly decrease drought conditions, which range from "abnormally dry" to even "extreme" across the region, according to the latest U.S. Drought Monitor.
Drought conditions have even led to low water levels along portions of the mighty Mississippi River, which is an important waterway for barge traffic.
According to the U.S. Army Corps of Engineers, water levels still remain in the acceptable range for barge traffic, but weights of products could be limited if low levels persist.
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A river gauge north of St. Louis recorded a water level of just 3 feet, marking a drop of 6 feet over the past month and more than 10 feet below the usual level for this time of year.
Despite the remnants of Beryl and early-summer flooding impacting the valley, water levels have generally remained below their average stage.