NATIONAL NEWS (CNN) — Pounding rain soaked tornado-ravaged Moore, Oklahoma, on Thursday morning, hindering recovery efforts. And heavy winds were expected, bringing a slight possibility of an isolated twister.
The torrential showers drenched fields of debris where homes and schools stood before Monday's massive tornado. The National Weather Service warned of wind gusts up to 60 mph, which could send remnants of precious possessions flying through the air -- again.
The weather service issued a severe thunderstorm warning for the Oklahoma City area, including Moore, with 2-inch hail possible, HLN meteorologist Bob Van Dillen reported. A flash flood warning was issued as well.
The conditions could spawn an isolated tornado, CNN meteorologist Indra Petersons reported, though no tornado warning was issued, and the risk was low.
Miserable conditions in the area could continue through the Memorial Day weekend, Petersons said.
A group of people who rode out Monday's ferocious tornado in a bank vault huddled together under a tarp early Thursday near a CNN crew.
CNN's Judson Jones, Vivian Kuo, Jennifer Delgado and John Berman contributed to this report.