The National Weather Service in Fort Worth has issued a flash flood watch through Tuesday evening for Tarrant and 21 other counties in north central Texas as strong thunderstorms continue across the area.
At 9 p.m., forecasters said a line of strong storms would continue to move across North Texas overnight, bringing periods of intense rain, small hail and dangerous lightning.
A tornado watch was canceled in Tarrant but remained in effect as of 9 p.m. for 12 counties, including Dallas and Johnson. That watch was scheduled to expire at 10 p.m.
Dallas and Collin counties were under a flash flood warning until 1 a.m.
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Almost an inch of rain had been recorded at DFW Airport as of 9 p.m., and the temperature fell almost 20 degrees, from 77 to 58, between 6 and 7 p.m.
Winds gusted to more than 35 mph in some areas of Tarrant on Monday afternoon. There were numerous reports of tree limbs and power lines down throughout the county.
Heavy winds today knocked out power to more than 21,600 customers in DFW as of 9:20 p.m., according to electricity provider Oncor. More than 11,000 were in the Fort Worth metro area.
The outages were caused by tree limbs hitting power lines and winds knocking the lines down. To report a power outage, call 1-888-313-4747. If a power line is down, call 911.
Strong winds blew down an awning at the Mayflower Place Shopping Center in Hurst about 12:45 p.m., said Hurst police Sgt. Craig Teague. The building at 737 Grapevine Highway in Hurst fell onto three or four vehicles, but no one was injured. Strong winds also toppled an 18-wheeler in Grapevine.
Tuesday's forecast calls for a 60 percent chance of rain during the day and a 30 percent chance at night.
A flash flood watch means that conditions are favorable for heavy rain, and flooding could occur in low-lying areas including underpasses, low-water crossings and small creeks.
In time, flooding may occur along the Brazos, Trinity, Sulphur and Sabine river basins.
Nick Hampshire, a meteorologist at the National Weather Service office in Fort Worth, said the rains may clear out by Tuesday afternoon.
Monday's high was 78. Tuesday's forecast high is in the lower 70s, with upper 60s on the way for Wednesday.
There's a slight chance of rain Wednesday, but the rest of the week should be dry with sunny skies and temperatures warming back into the mid-70s and even the lower 80s by the weekend.
Domingo Ramirez Jr.,