HISTORIC WEST VA FLOODING, TS BERTHA GULF LANDFALL (4AET)
(CNN) — Tropical Storm Bertha moved inland for the final time Thursday afternoon near the Texas-Louisiana border, bringing with it some tropical storm-force wind gusts and rainfall to parts of those coastlines. But its most widespread flooding rain threat is unfolding hundreds of miles to the east.
The disorganized, lopsided tropical storm was centered about 35 miles north of Galveston Thursday afternoon with maximum sustained winds of 40 mph. Bertha is expected to track farther into Texas and dissipate either Thursday evening or Friday morning.
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Meanwhile, a plume of tropical moisture linked to Bertha is feeding soaking rain along a cold front draped across the Southeast.
That moisture will continue to fuel a flooding rainfall threat through Friday from North and South Carolina to northern parts of Georgia and Alabama, potentially causing more flooding there than in areas closer to Bertha itself. Some areas in North Carolina have already received a monthās worth of rain in just a few days with more to come.
Heavy rain Thursday morning prompted flash flood warnings in southeast Virginia, eastern North Carolina and eastern Tennessee. Flooding closed a short section of Interstate 40 northwest of Durham, North Carolina, Thursday morning that has since reopened, according to the stateās department of transportation.
Flash flood warnings were also issued in North Carolina, including Greensboro and Winston-Salem, Wednesday night, where heavy storms dropped up to 6 inches of rain in 12 hours. There were no flood reports from the area, where a serious drought and prolonged, rather than intense, rainfall has helped mitigate the threat so far.
Berthaās Texas threats
Berthaās uneven structure, with its storminess mostly over the Gulf, means any of its remaining tropical storm-force wind gusts will impact the upper Texas Coast and southwest Louisiana, while much of its rainfall goes toward South Texas.
A tropical storm warning is in effect from the upper Texas Coast, including Galveston, to western Louisiana, where tropical storm conditions are expected Thursday.
Farther south, the storm could bring 1 to 3 inches of rain, with isolated totals of 4 inches, to a few areas along the middle Texas Gulf Coast and in South Texas through Thursday night. Isolated flash flooding is possible, but dry ground conditions should help combat a bigger threat.
Bertha is the second named storm of the Atlantic hurricane season, which has gotten off to a slow start compared to recent years as El NiƱo tightens its grip on parts of the basin.
Flood threat continues in the East
Berthaās moisture began funneling into a slow-moving front draped across the Southeast and southern Virginia in earnest on Wednesday, setting the stage for the ongoing flood threat.
On Wednesday morning, storms caused flash flooding north of Knoxville, Tennessee, after up to 5 inches of rain fell in a few hours.
More rounds of rain are expected through Friday. The Carolinas need rain to help quench drought conditions there, but too much rain repeating over the same areas over hours or days could quickly trigger dangerous flash flooding.
A Level 2 of 4 risk of flooding rain is in place from parts of the Carolinas westward to northern Alabama Thursday into Friday morning.
Thursday afternoonās thunderstorms could pack rainfall rates up to 2 inches per hour ā an intensity that can quickly overwhelm drainage systems and flood urban areas. Atlanta, Birmingham, Alabama, and Charlotte, North Carolina are among the cities at risk.
The flood threat will continue Friday, with a Level 2 of 4 risk stretching from coastal North Carolina through South Carolina, northern Georgia and into northeast Alabama.
The-CNN-Wire
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