The oracle Ullrs is keeping an eye on things this winter season and we want to compare the accuracy of the forecasts with our tips in a snow depth competition. For every PowderAlert (ok, let's say almost every one), the 24-hour snowfall total at an observer station in the core zone of the forecast is tipped. At the end of the season, the winner is the one who has the least deviation from the measured values.
What exactly the core zone is and at which station and in which period is tipped, Ullr, or in the sense of this game his helpers Anselm (announcer) and Lars (oracle), define anew for each PowderAlert. For each tip, there is a link to a forum thread under the PowderAlert, where the station, the link to it and the period for the 24-hour tip appear. You must then submit your tip in the corresponding forum thread within the tip period.
At the end of the season, the five best tips from each player will be evaluated. So it doesn't matter if you miss a few tips during the season (we hope for many PowderAlerts, of course). The absolute deviation (amount predicted minus measured value) of these five predictions will be normalized to the actual amount of fresh snow, added together and divided by five. In other words, the winner is the one with the smallest value at the end. There are tempting prizes from our partners and hopefully a good portion of glory powder straight from Ullr's lap.