Radar indiciated a tornado developed northwest of Donna shortly after 5 p.m. Monday, and a storm spotter eyed a funnel cloud about the same time, said Jason Straub, a meteorologist with the National Weather Service in Brownsville.
"The winds aloft were very weak, so these storms weren't moving fast in any direction," he
No injuries were reported during Monday afternoon's thunderstorms, which developed after an unstable atmosphere paired with weak upper-level winds triggered slow-moving disturbances that dropped upwards of eight inches of rain in just a few hours, Straub
Instability is expected to remain in the forecast for today, with meteorologists forecasting similar conditions as Monday.
Exactly where the storms may develop remains to be seen, Straub
"Any little showers that pop up could spread into a large area again," he