Severe Weather Alert: Thunderstorms In South-Central Pennsylvania

Henrik Larsen

3 min read

Post on May 22, 2025

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Affected Areas and Severity

This severe weather alert primarily impacts South-Central Pennsylvania, encompassing several counties and towns. The storm's severity is expected to vary across the region, with some areas facing more significant risks than others. We anticipate severe thunderstorms, characterized by damaging winds exceeding 58 mph, large hail up to 2 inches in diameter, and torrential rainfall leading to flash flooding.

• Adams County: High risk of flash flooding in low-lying areas and along streams. Damaging winds and potential hail are also concerns.
• York County: Under a high wind warning. Expect widespread power outages and potential tree damage. Hail is also a possibility.
• Lancaster County: Significant risk of torrential rainfall and flash flooding. Expect ponding on roadways and potential road closures.
• Dauphin County: Potential for damaging winds and heavy rainfall.

Timing and Duration of the Storm

The severe thunderstorms are expected to begin impacting South-Central Pennsylvania around 2 PM EDT on October 26, 2023. The most intense period is predicted to last until approximately 8 PM EDT, but lingering showers and thunderstorms could continue into the evening.

• York: Storm expected to hit between 2 PM and 8 PM EDT. Heavy rain anticipated until 10 PM.
• Lancaster: Heavy rain and potential flash flooding expected between 3 PM and 9 PM EDT.
• Adams County: Severe weather possible from 2:30 PM to 7:30 PM EDT. Lingering showers expected overnight.

Potential Hazards and Risks

This severe weather event presents various hazards and risks to the community. It's crucial to understand these dangers to take appropriate safety precautions.

• Power Outages: High winds are likely to cause widespread power outages across South-Central Pennsylvania.
• Fallen Trees and Branches: Strong winds could uproot trees and cause damage to property.
• Property Damage: Large hail and high winds pose a significant risk to homes and businesses.
• Road Closures: Flash flooding and debris from fallen trees may result in road closures.
• Flash Flooding: Torrential rainfall is anticipated, leading to flash flooding, particularly in low-lying areas and near waterways.

Safety Precautions and Emergency Preparedness

Staying safe during severe thunderstorms is paramount. Follow these safety precautions:

• Stay Indoors: Seek shelter in a sturdy building during the storm. Avoid being outside when thunderstorms are present.
• Unplug Electronics: To prevent damage from lightning strikes, unplug electronic devices and appliances.
• Monitor Weather Updates: Continuously monitor weather updates from reliable sources like the National Weather Service.
• Emergency Kit: Have a well-stocked emergency kit ready, including flashlights, batteries, water, first-aid supplies, and non-perishable food.
• Know Your Evacuation Routes: If you live in a flood-prone area, familiarize yourself with evacuation routes and have a plan in place.

Resources and Further Information

For the most up-to-date information on this severe weather alert, consult these resources:

• National Weather Service (NWS): [Link to NWS website]
• Local News Channels: [Links to local news websites]
• Emergency Management: [Link to your local emergency management agency website]

Conclusion

Severe thunderstorms are expected to impact South-Central Pennsylvania, bringing the risk of damaging winds, large hail, and flash flooding. The counties of Adams, York, Lancaster, and Dauphin are particularly at risk. The storm is expected to start around 2 PM EDT on October 26, 2023. It is crucial to prioritize your safety by staying informed, preparing an emergency kit, and following all safety precautions. Stay vigilant, monitor South-Central Pennsylvania thunderstorm updates regularly, and take immediate action to ensure your safety and the safety of your loved ones. For further updates on severe weather safety in South-Central PA, refer to the resources listed above.