The National Weather Service has issued a tornado watch in Mount Holly on Thursday, Aug. 20, from 3:00 p.m. until 10:00 p.m.. This warning applies to Bucks, Chester, Delaware, Montgomery and Philadelphia counties, Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, Salem, Kent, New Castle, Sussex, Caroline, MD, Kent, MD, Queen Anne's, MD, Talbot, MD,

At 3:00 p.m., the NWS issued a statement including the following information:

"THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 605 UNTIL 10 p.m. EDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE THUNDERSTORM WATCH 604. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN DELAWARE THE NEW WATCH INCLUDES 3 COUNTIES IN CENTRAL DELAWARE KENT IN NORTHERN DELAWARE NEW CASTLE IN SOUTHERN DELAWARE SUSSEX IN MARYLAND THE NEW WATCH INCLUDES 4 COUNTIES IN NORTHEAST MARYLAND CAROLINE KENT QUEEN ANNE'S TALBOT IN NEW JERSEY THE NEW WATCH INCLUDES 7 COUNTIES IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CAPE MAY CUMBERLAND GLOUCESTER SALEM IN PENNSYLVANIA THE NEW WATCH INCLUDES 5 COUNTIES IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ATLANTIC CITY, CAMDEN, CENTREVILLE, CHERRY HILL, CHESTERTOWN, DENTON, DEPTFORD, DOVER, DOYLESTOWN, EASTON, GEORGETOWN, GLASSBORO, HAMMONTON, MEDIA, MILLVILLE, MOORESTOWN, MOUNT HOLLY, NORRISTOWN, OCEAN CITY, PENNSVILLE, PHILADELPHIA, WEST CHESTER, AND WILMINGTON."

Get as low as possible, the National Weather Service says. A basement below ground level or the lowest floor of a building offers the greatest safety. Put as many walls between yourself and the outside as possible. Avoid windows.

If you're driving, particularly on highways, do not try to outrun a tornado.

If you are driving in an area with a tornado warning, you should look for ways to safely get off the road and out of your vehicle, preferably by seeking refuge in a sturdy building.

As a last resort, lie flat in the nearest depression, ditch or culvert and cover your head with your arms.

A tornado watch is when the conditions are primed for a tornado, but no tornado has formed. Tornado watches can last hours, and a tornado may never touch down.

A tornado warning is when a tornado is imminent, like rotation in the clouds, or one has already touched down. Take shelter immediately.

This weather report was generated automatically using information from the National Weather Service and a story written and reviewed by an editor.

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This article originally appeared on Bucks County Courier Times: Tornado watch issued for Bucks County