Tsunami - Mt Patterson

Access
Tsunami lies to the right of the iconic Riptide. Itinerary
The first two pitches trend first right, then back left, on steep snow and low-angled rock, to a snowfield. On the first ascent the ice did not come all the way down to the snow, and was accessed by climbing a loose but well-protected crack system on the left. The final three pitches climb gradually thickening ice to - and through - the serac barrier. The serac capping the route appears to be benign, but one never knows with seracs. Descent
Rappel the route from ice and rock anchors. The lower traverses are avoided by rappelling straight down a steep, rocky depression. Gear
Half a set of nuts, a few pitons, cams to #2 Camalot, and ten or so screws of all lengths.