Tornado Watch

The National Weather Service in State College has issued a tornado watch for 21 counties, including all four Valley counties, until 7 p.m. tonight.

Meteorologist Taylor Grenda says a tornado watch has been issued until 7 p.m. by the National Weather Service for the northern counties of Maryland.

PHILADELPHIA (CBS) — Get ready for some gusty thunderstorms to impact the afternoon drive on Friday followed by record-breaking heat to start the weekend.

PHILADELPHIA (CBS) — Get ready for some gusty thunderstorms to impact the afternoon drive on Friday followed by record-breaking heat to start the weekend. The threat will mainly be from the city on north and west, with the timing likely between 3 and 6 p.m. The biggest threat with the complex of storms will be damaging straight-line wind gusts, and the area is under a marginal (1 out of 5) risk of severe weather.READ MORE: The National Weather Service has issued a tornado watch for parts of Delaware, New Jersey, and Pennsylvania until 7 p.m. Friday.

In addition to tornadoes, hail and wind gusts of up to 70 mph are possible Friday afternoon, according to the National Weather Service.

Temperatures are expected to be very high Saturday. The weather service issued a heat advisory from 11 a.m. until 10 p.m. Saturday. Residents are encouraged to drink plenty of fluids and stay in an air-conditioned room. In addition to tornadoes, hail and wind gusts of up to 70 mph are possible Friday afternoon, according to the National Weather Service. Scattered thunderstorms are also possible during that time. The weather service issued the severe thunderstorm warning for Central Bucks at 3 p.m. It will remain under the warning until 3:45 p.m.

Hail and heavy winds could be en route to the Garden State.

In New Jersey, more than a dozen counties should be on the lookout for extreme weather. The storms are only expected to bring some rain and wind to the New York metro area. In addition to the threat of tornadoes, the watch includes the possibility of hail up to two inches in diameter and high winds of up to 70 miles per hour.

The tornado watch is in effect until 7 p.m for 13 counties, the National Weather Service said.

Storms in New Jersey could develop anytime between 4 and 7 p.m. forecasters say. If a tornado warning were to be issued, it means that one has been spotted. The watch is in effect until 7 p.m. for 13 counties as well as for part of Delaware and large chunks of Maryland and Pennsylvania, the National Weather Service said.

The National Weather Service has issued a tornado watch for much of Maryland on Friday, including the Baltimore area, warning that storms could bring high ...

Earlier in the day Friday the NWS had warned of "the potential for severe weather this afternoon and evening," particularly northwest of Interstate 95. " ...

"Damaging winds remain the primary threat but hail and an isolated tornado cannot be ruled out," the NWS tweeted shortly after 11 a.m. The NWS has issued a heat advisory for much of the state from 11 a.m. until 10 p.m. Saturday, with temperatures projected in the 90s inland and the 80s on the shore. Earlier in the day Friday the NWS had warned of "the potential for severe weather this afternoon and evening," particularly northwest of Interstate 95.

Damaging wind gusts to 70 miles-per-hour, large hail over 1" in diameter, and an isolated tornado or two are the potential hazards from any stronger storm ...

Damaging wind gusts to 70 miles-per-hour, large hail over 1" in diameter, and an isolated tornado or two are the potential hazards from any stronger storm that is able to develop. Be sure to download the 69News StormCenter App, free for your mobile device, to track any storms with live radar and warnings if they occur. The watch is in effect through 7 p.m. Friday, for the potential for a few strong to severe storms, and possibly an isolated tornado or two.