A flash flood watch has been issued for much of the Tri-State Area on Monday. It takes effect at 2 p.m. and lasts until at least midnight. It's a First Alert Weather Day, as we track downpours, thunderstorms and the enhanced risk of flash flooding across portions of New Jersey.

The flood warning is in effect until Tuesday, July 15, at 7 a.m. for the Frio River. NWS said that major flooding is forecast for the Frio River below Dry Frio, with the National Water Prediction Service predicting the river will hit 18.6 feet at around 5 p.m. The major flood stage for the Frio River is 17 feet.

New Yorkers in basement apartments were told to be ready to leave and New Jersey’s governor declared a state of emergency after heavy rains in the northeast caused flash flooding, officials said

A National Weather Service flood watch forecasting heavy downpours of up to half a foot of rain was posted until Tuesday morning for a wide swath of central Texas extending from the Rio Grande east to San Antonio and Austin.

Rainfall amounts of 1 to 2 inches with isolated amounts of 3 to 5 inches are possible, the National Weather Service said.