The watch was issued for Grande Ronde Valley, Northern Blue Mountains of Oregon, Southern Blue Mountains of Oregon, John Day Basin, Ochoco-John Day Highlands, East Slopes of the Oregon Cascades and Central Oregon as well as Wallowa County.

Heavy rain that may cause flooding is expected both Thursday and Friday. A flood watch has been issued for most of the region from 2 p.m. Thursday through 2 p.m. Friday. Wednesday's high of 95 degrees in Central Park officially solidified the second heatwave of the summer for New York City.

Here's the latest on red flag warnings, flash floods, fire restrictions and wildfires burning around the state. Flash flood watches for parts of Oregon are in effect from 2 p.m. through the evening of July 31.

Strong rain storms lashed the East Coast Thursday, delaying flights throughout the region and prompting emergency rescues of motorists trapped in deep water on busy highways from the Philadelphia area to New York City. In Pennsylvania, National Weather Service warnings of up to 3 inches of rain in an hour produced flooding in Reading.

Dangerous torrential rainfall and flash flooding are underway in the mid-Atlantic and Northeast Thursday with millions at risk along the Interstate 95 corridor. It’s shaping up to be another serious flood event in a summer that’s been full of them.

Widespread storms moving through the mid-Atlantic and Northeast on Thursday brought periods of intense rain and flash flooding that swamped streets and subways in New York and snarled air travel across the East Coast.