Active Weather Alerts
Severe Thunderstorm Watch
Issued: 9:33 PM Aug. 20, 2026 – National Weather Service
PA . PENNSYLVANIA COUNTIES INCLUDED ARE ADAMS BERKS LANCASTER LEBANON LEHIGH NORTHAMPTON YORK
Flash Flood Warning
Issued: 8:41 PM Aug. 20, 2026 – National Weather Service
The National Weather Service in State College has issued a * Flash Flood Warning for... Northeastern Lancaster County in south central Pennsylvania... * Until 745 PM EDT. * At 441 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Ephrata, Lititz, Mount Joy, Manheim, East Petersburg, Akron, Salunga-Landisville, Denver, Reamstown, Rothsville, Adamstown, Brickerville, Bowmansville, Reinholds, Fivepointville, Schoeneck, Penryn and Lancaster Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. && FLASH FLOOD...RADAR INDICATED
Flood Watch
Issued: 4:14 PM Aug. 20, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of central Pennsylvania, including the following areas, Columbia, Dauphin, Lancaster, Lebanon, Montour, Northern Clinton, Northern Lycoming, Northumberland, Schuylkill, Snyder, Southern Clinton, Southern Lycoming, Sullivan, Union and York. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Periods of heavy rain are expected this afternoon through the evening. Rainfall amounts up to 3 inches are possible. - http://www.weather.gov/safety/flood
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