Overview

• After a cool weekend, a short warm spell begins, with many areas reaching 25–29 °C and the southwest locally around 30–31 °C through Tuesday and early Wednesday.
• Forecasts indicate thunderstorms developing from Tuesday evening in the southwest and spreading on Wednesday, with risks of torrential rain, large hail and damaging winds capable of regional impacts.
• Ex‑Hurricane Erin has transitioned to an extratropical low near Western Europe and is driving the approaching frontal change that is expected to end the warm intermezzo.
• DWD issued thunderstorm and wind advisories over the weekend for parts of the northeast, and local reports included storm gusts of 65–75 km/h in Berlin and Brandenburg.
• Recent volatility featured ground frost in high valleys such as the Erzgebirge and an isolated report of roughly 180 l/m² in 17 hours in the south, underscoring sensitivity to further heavy rain later this week.