Weatherday: Firestorm!

Lake walk at Johnstown Castle, Wexford.

A dry day with spells of hazy sunshine. It's a less clammy morning, and temperatures won't be as extreme as recently, up to 22-23deg.

Moderate to fresh winds from the north east.

On this day in 1943, Britain's Royal Air Force began a repeat bombing operation on the German city of Hamburg that continued until 3 August, causing a firestorm that killed nearly 47,000 people.

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