Overview

• Forecasts call for several days of exceptional rain in the southern Swiss Alps and northern Italy, with 300 to 500 liters per square meter possible and the highest warning levels signaling life‑threatening floods and landslides.
• Germany faces widespread unsettled weather, as the DWD warns of heavy rain, thunderstorms and gusts up to 60–70 km/h, with 20 to 35 liters per square meter in hours and local peaks to 40–50 liters.
• Emergency crews in Hesse reported flooded basements, displaced manhole covers and brief power disruptions after Wednesday’s storms, with further local downpours possible into the weekend.
• Meteorologists note an Atlantic moisture feed, including outflows from ex‑Hurricane Erin, while model guidance diverges sharply on city‑level totals, illustrated by ECMWF vs ICON differences for Cologne.
• Rain bands extend from the southwest across Germany through the weekend with pauses between showers, as forecasters also flag a likely warmer‑than‑average early autumn paired with a risk of precipitation deficits.