Hagalaz

Hail. Ice. Sleet. All things cold that fall from the sky. "Hail shocks you with stinging hardness (confrontation) then it melts into water which creates germination of seeds (transformation)." (ref: http://runesecrets.com/rune-meanings/hagalaz)
It can mean that a destructive power beyond your control is coming and that change will obviously follow in its wake. Esoterically, this can mean that there will be fundamental changes to your own patterns and ways of thinking. These changes will be brought about by external powers. You can prepare for it by accepting that it will happen, and "...live within the limitations of nature and accept events beyond human control." (Paxson, 2005)
When bound by JERA and BERKANO, the outcome is good - JERA is the harvest, the results of the good work done through the season. While JERA is vulnerable to the powers of HAGALAZ, the existence of BERKANO suggests, "...bringing into being..." (Gundarsoon in Paxson, 2005). It is about new growth from the branches broken by HAGALAZ.