Weather alerts in Pennsylvania

At 523 PM EDT, a severe thunderstorm was located over Hallam, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... York, Weigelstown, Columbia, Mount Joy, Shiloh, East York, Stonybrook-Wilshire, West York, Salunga-Landisville, Maytown, Grantley, and Manchester. This includes Interstate 83 from mile markers 18 to 25.

What to do: Stay inside a well built structure and keep away from windows.

At 502 PM EDT, severe thunderstorms were located along a line extending from near Highland Lake to near Bushkill, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Bushkill, Lackawaxen, Shohola, Matamoras, Wurtsboro, Milford, Bloomingburg, Haven, Oakland, and Glen Spey.

What to do: For your protection move to an interior room on the lowest floor of a building. Heavy rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

At 518 PM EDT, a severe thunderstorm was located near Topton, or 13 miles southwest of Allentown, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. Locations impacted include... Emmaus, Quakertown, East Greenville, Topton, Bally, Bechtelsville, Green Lane, Zionsville, Geryville, Ancient Oaks, Pennsburg, Macungie, Coopersburg, Red Hill, Alburtis, and Trumbauersville. This includes Northeast Extension between mile markers 36 and 54.

What to do: For your protection move to an interior room on the lowest floor of a building.

SEVERE THUNDERSTORM WATCH 686 REMAINS VALID UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 2 COUNTIES IN CENTRAL PENNSYLVANIA LANCASTER YORK THIS INCLUDES THE CITIES OF LANCASTER AND YORK.

SEVERE THUNDERSTORM WATCH 686 REMAINS VALID UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN NEW YORK THIS WATCH INCLUDES 1 COUNTY IN CENTRAL NEW YORK SULLIVAN IN PENNSYLVANIA THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST PENNSYLVANIA PIKE WAYNE THIS INCLUDES THE CITIES OF HAWLEY, HONESDALE, MILFORD, AND MONTICELLO.

SEVERE THUNDERSTORM WATCH 686 REMAINS VALID UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 10 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS LEHIGH NORTHAMPTON IN NORTHEAST PENNSYLVANIA CARBON MONROE IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ALLENTOWN, BETHLEHEM, DOYLESTOWN, EASTON, JIM THORPE, MEDIA, NORRISTOWN, PHILADELPHIA, READING, STROUDSBURG, AND WEST CHESTER.

* WHAT...Sub-freezing temperatures as low as 28 possible. * WHERE...Lackawanna and Luzerne Counties. * WHEN...From late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do: Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures in the upper 20s to low 30s possible. * WHERE...In New Jersey, Sussex County. In Pennsylvania, Carbon and Monroe Counties. * WHEN...From late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do: Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures in the low 30s possible. * WHERE...In New Jersey, Morris, Warren, and Hunterdon Counties. In Pennsylvania, Berks, Lehigh, Northampton, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN...From late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do: Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. * WHEN...From late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do: Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.

* WHAT...Sub-freezing temperatures as low as 25 possible. * WHERE...A portion of central Pennsylvania. * WHEN...From late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do: Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation.

* WHAT...Sub-freezing temperatures as low as 30 possible. * WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN...From late Saturday night through Sunday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

What to do: Take steps now to protect tender plants from the cold.

At 521 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Dallastown to Parkville. Movement was east at 40 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Lancaster, York, Hanover, Columbia, Millersville, Willow Street, Parkville, Red Lion, New Holland, Spry, East Petersburg, Dallastown, Shiloh, East York, Leola, Stonybrook-Wilshire, Paradise, West York, Salunga-Landisville, and Maytown.

What to do: If outdoors, consider seeking shelter inside a building. A Severe Thunderstorm Watch remains in effect until 800 PM EDT for south central Pennsylvania.