The burns are pretty obvious, especially stuff that went up last year (no vegetation has returned yet) but I have definitely been having better luck just looking for naturals, rather than the fire commensals. The low elevation (~1500') flats were popping off about a month ago, and now it's just a matter of finding the elevation that the flush is at. A buddy just found some around 3500' that were perfect.
As indytransplant said, it hasn't been a great year thus far. Was super dry until about last weekend, and there is still snow in the mountains below 5000' so soil temperatures are lingering on the low side. The Okanogan-Wenatchee National Forest was apparently nuts last year following the Table Mountain-Wentachee fire complex in 2012, but everything I am hearing and experiencing says it is kind of hit or miss this year. Definitely no hordes of commercial pickers...yet.