Pennsylvania Extreme Tornado Warning | Effective 08-20-2026 14:22

Headline: 
Tornado Warning issued August 20 at 5:22PM EDT until August 20 at 6:00PM EDT by NWS Mount Holly NJ
Event: 
Tornado Warning
Urgency: 
Immediate
Effective: 
August 20, 2026 - 2:22pm
Expires: 
August 20, 2026 - 3:00pm
Description: 
TORPHI The National Weather Service in Mount Holly NJ has issued a * Tornado Warning for... Central Chester County in southeastern Pennsylvania... Southwestern Delaware County in southeastern Pennsylvania... * Until 600 PM EDT. * At 522 PM EDT, severe thunderstorms capable of producing both tornadoes and extensive straight line wind damage were located along a line extending from Coatesville to 6 miles north of West Grove, moving east at 45 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * Locations impacted include... West Chester, Chester, Coatesville, Westtown, Downingtown, Kennett Square, Parkesburg, Cheyney, Elam, Marshallton, Lima, Chelsea, Lionville-Marchwood, Gradyville, and Paoli.
Instruction: 
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. This line of thunderstorms is capable of producing tornadoes and widespread significant wind damage. Do not wait to see or hear the tornado. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
SNM:AVISO DE TORNADO hasta las 6:00 PM EDT. Refugiese ahora. Consulte medios informativos
Servicio Nacional de Meteorologia: AVISO DE TORNADO en efecto hasta las 6:00 PM EDT. Busque refugio ahora en un sotano o en el interior de un cuarto en el nivel mas bajo de un edificio seguro. Si esta al aire libre, en una casa movil, o en un vehiculo, debe ir al edificio seguro mas cercano y protegerse de proyectiles. Consulte los medios informativos.
Area Description: 
Chester, PA; Delaware, PA
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov