Severe Thunderstorm Watch Through 10 P.M.

The National Weather Service has issued a Severe Thunderstorm Watch for 17 Pennsylvania counties, including Bucks, Montgomery, Chester, Delaware and Montgomery.

Forecasters say strong storms are possible, with damaging winds, and even hail or tornadoes in some areas. Some of these storms could produce heavy rain, which could lead to flooding in areas with poor drainage, according to the weather service.

Residents should monitor the forecast and seek shelter if necessary.

All counties included in watch, which goes through 10 p.m., include:

• ADAMS
• BERKS
• BUCKS
• CARBON
• CHESTER
• CUMBERLAND
• DAUPHIN
• DELAWARE
• LANCASTER
• LEBANON
• LEHIGH
• MONROE
• MONTGOMERY
• NORTHAMPTON
• PHILADELPHIA
• SCHUYLKILL
• YORK