Officials at Oxford university had to close a party down when a student turned up with his home made flame thrower.
Inigo Lapwood, 20, said he made the weapon using parts from a nail gun and diesel engine glow plug and a canister of butane gas.
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Fine this evening, then dry overnight with mist likely in places. Sunny spells tomorrow morning with hazy sunshine in the afternoon
A fine and sunny evening, then dry and clear overnight. A sunny start to Monday with hazy sunshine into the afternoon and feeling fresher
The grass pollen risk will rise to very high during warm, sunny weather. Weed pollen will also be airborne