The GEFS runs of the last few days have been predicting an unusually strong +PNA coming up in early August. Here's today's GEFS PNA forecast, which if anything is a bit stronger overall:    Based on this forecast, the PNA is going to skyrocket the next 2 days and approach, if not reach, 2 tomorrow (8/1) and approach, if not reach, 3 on 8/2. Afterward, the mean suggests it will quite possibly drop slightly on 8/3 before probably rising again some. It is projected to be 2+ anywhere from