Northeast US under severe thunderstorm watch

The National Weather Service issued Severe Thunderstorm Watches for parts of Pennsylvania, Ohio, and New York on July 18, 2026.

The watch in Pennsylvania covers 33 counties in central Pennsylvania, including Harrisburg, Lancaster, and York, in effect until 9 pm EDT.

In Ohio, all of Northeast Ohio is under a severe thunderstorm watch through 9 pm Saturday, with potential damaging winds, large hail, and isolated tornadoes.

In New York, the watch covers western New York and the Finger Lakes, including counties like Erie, Monroe, and Niagara.

Southern Ontario, Canada, also received a severe thunderstorm warning from Environment and Climate Change Canada.