Overview
- Local forecasters have declared an Impact Day for the Susquehanna Valley because scattered showers and thunderstorms are forecast in several rounds through the day.
- The primary hazards are heavy rainfall rates and damaging straight‑line wind gusts with isolated storm cells able to reach moderate severe risk levels.
- The southeast portion of the valley is under a Slight risk while the remainder is under a Marginal risk for severe weather, according to the WGAL outlook.
- Showers and isolated storms should linger into Wednesday as an upper‑level low weakens, with drier, more seasonable weather expected by Friday.
- Wet soils from earlier July rains raise the chance of urban and flash flooding and travel disruption during slow‑moving or training storms, so residents should monitor watches and warnings.