Locally heavy rain, mainly at Evia. Precipitation amount forecasted above 60 mm in 12 hours. BE PREPARED to protect yourself and your property. Some flooding of properties and transport networks are possible. Disruption to power, communications and water supplies are possible. Some evacuations may be required. Dangerous driving conditions due to reduced visibility and aquaplaning

Severe thunderstorms in place probably accompanied by strong winds and hail at times, mainly at Evia. BE PREPARED for severe thunderstorms causing significant impact and protect yourself from lightning. Damage to property and trees may occur. Flash flooding, wind gusts and hail are possible. Transport and outdoor activities disruption can be expected.