Massive Freight Train Toppled Due to Texas Flooding as 20 Inches of Rain Fall in Places

— -- Two crew members were rescued today from a freight train that was derailed by heavy rain and flash flooding near Corsicana, Texas, according to Union Pacific Railroad, an area that saw more than 19 inches of rain.

The demonstration of the force of nature came as torrential rains drenched Texas, with two counties getting more than 20 inches of rain since the storm began. And the end may not be in sight as an additional foot of rain was possible in parts of Eastern Texas, forecasters said.

Powell, in Navarro County, got at least 20.15 inches and Coolidge, in Limestone County, got 20 inches. Rainfall records were broken for San Antonio, Waco and Dallas for daily totals.

The train, which was carrying cement, had been heading southward around 3:30 a.m. when the conductor noticed water starting to come over the tracks, according to Jeff DeGraff, director of corporate media relations for Union Pacific Railroad.

Degraff told ABC News that the conductor "was able to safely stop the train in a high-water area due to flash flooding of a nearby creek," and he and another crew member "evacuated and were subsequently picked up by a Navarro County water rescue team."

Shortly after the two crew members escaped the train, 46 of the train's 54 cars were knocked over by the floodwaters several feet high, DeGraff said. Fortunately, "the two men are both doing fine and both escaped uninjured," he added.

Recovery efforts for the submerged train are on pause until "the rain subsides and floodwaters come down," Degraff said. "We're at the mercy of Mother Nature."

Remnants of moisture from Hurricane Patricia, which weakened into a tropical depression late Saturday morning, is expected to "exacerbate" the current heavy rain from a separate front, NOAA meteorologist Dennis Feltgen told ABC News today.

As torrential rain is forecast to continue pouring down across Texas over the weekend, numerous flash flood warnings remained in effect Saturday afternoon for much of the state and parts of Oklahoma and Louisiana, according to the National Weather Service (NWS).

The Dallas area reportedly had five to eight inches of rain as of Saturday afternoon.