After getting home tonight and examining the stream the problem became clear. Somewhere around 10:30 last night the top of a tree broke off (a neighbor heard the crack). The stream splits in two and the tree landed on the left fork. This caused the water to back up and flow over the berm.
We were able to clear out the tree top with an axe and some lifting. Hopefully the problem is gone for this year.
Two hours, two Fire trucks, 30 sand bags, our annual come out and meet the neighbors party later we got to go back to bed. Looks like I will be back at repairing the stream this afternoon.
On the plus side it didn't go into the parking lot, the new storm water drop put in last year really helped, and most importantly no-one took on water.
A little Christmas Eve visit with Ems & Tillie. Christmas morning at Boo's. Our very first alpine skiing adventure with Elyse & JP on Baker! Dinner at Gabe & Lindsay's in Bellingham. Hearn Christmas: my brother was santa. :) New baby Alana! Gowey Christmas. Christmas in Spokane (with over 4 feet of snow).