Hagalaz is the letter H
Anglo-Saxon Rune Poem (from ragweedforge.com)
Hail is the whitest of grain;
it is whirled from the vault of heavenand is tossed about by gusts of windand then it melts into water
Hagalaz signfies hail, the storm, and the forces of destruction. It indicates that this week will be filled with changes, not all pleasant, and the only response one can do is to move with them and withstand them.