100% correct animepornstar! The Helm blows in North England. There is a range of hills (The Pennines) which runs North-South. The West wind hits the hills and (rather like the Foehn wind elsewhere) forms a cloud over the hilltops which looks like a helm (=helmet). Due to the physics of it, the wind is warmer as it descends on the east side. You set the next question!
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