The storm will return to the mainland.
Donald Jones, a meteorologist with the National Weather Service office in Lake Charles, La., said the storm was expected to make landfall on the Louisiana side of the border in Cameron Parish.
Mr. Jones said parts of southeast Texas and southwest Louisiana, which have already been flooded by several inches of rain, could get another five to 10 inches when the storm arrives; winds were expected to reach about 50 m.p.h., with gusts as high 60 m.p.h., he said.
Because the ground is already so saturated, âthe big thing weâre concerned about is trees being blown over,â Mr. Jones said, adding that officials are less worried that the winds alone will be strong enough to damage homes.
The additional rain also means that widespread flash flooding will continue through Wednesday, Mr. Jones said, regardless of where exactly the center of the storm is.
Forecasters believe the stormâs pace will quicken starting late Tuesday night and that it will continue to move fast for the next few days. They expect the center of the storm to have reached central Louisiana by Wednesday night and southern Arkansas by Thursday.
More rain is expected through Friday.
Parts of Houston have been inundated by more than 50 inches, and totals could exceed 20 inches in southern Louisiana, the National Weather Service reported. Over the past four days, more than a trillion gallons of rain have fallen in Harris County alone â enough to ârun Niagara Falls for 15 days,â Mr. Lindner said, or fill the Houston Astrodome 3,200 times.
As for the record rainfall, a weather station at Cedar Bayou about 25 miles east of downtown Houston reported 51.88 inches of rain, eclipsing the previous mark of 48.00 inches that was measured at Medina, Tex., during Amelia, a tropical storm in 1978. Two other weather stations exceeded the Amelia record as well.
Weather Service officials noted that the rain was still falling and that the numbers at…