Its 520m the hill which i seen hit and the highest is actually 560m, no harm to you thats bloody high enough! lol... how do you know there is no snow in the sperrins? Binevenagh is behind me about 7 miles in a straight line and there was snow lying on my side right upto the second week in may and then it melted, (they got 3/4 foot level snow their) though i'd think the glens of antrim would've got far more in the april storm, thats why i thought it was a possiblity but i'd say its probably unlikely but it is still a possibility... anyway when does the next snow come average!