A series of systems sweeping the U.S. and Texas spell treacherous turns in weather in the coming days. The biggest threat appears to be Friday afternoon and evening for many regions, though it's going to be a pretty gloomy weekend and start to next week overall.

Hundreds of flights were canceled at DFW International Airport and dozens more at Love Field, according to FlightAware.

A tornado watch is in effect for Freestone and Henderson counties until 8 p.m. A flood watch is in effect for Parker, Tarrant, Dallas, Collin, Rockwall, Ellis, Montague, Cooke, Grayson, Fannin, Lamar,

On Tuesday at 6:25 p.m. a tornado watch was released by the NWS Fort Worth TX in effect until Wednesday at 1 a.m. The watch is for Wise, Cooke, Grayson, Jack, Montague and Young counties.

All threats are possible in North Texas Wednesday, with large hail and strong winds being the primary threats. The tornado threat is low. A First Alert Weather Day is in effect on Wednesday in North Texas due to the severe storm chances.