Umpqua NF / Diamond Lake

**Umpqua NF / Diamond Lake – Tier A Analysis** You're looking at a textbook mid-summer sweet spot: soil temps are locked at 61°F with seven consecutive days above threshold, moisture trigger confirmed, and zero drought stress. King boletes and oysters are both primed—this is genuine porcini season in the Diamond Lake belt. The catch is desiccation risk remains high despite yesterday's moisture event; the region pulled zero rain in the last week and is running on fumes from that 0.35" two weeks back. All four flagged species are legitimate takes right now, but hit the ground *today* or tomorrow morning before that 7-day moisture average drops further. The window is real but closing fast. **Hot tip:** Scout north-facing slopes and dense tree cover where soil stays dampest longest—porcinis will fruit there first as surface drying accelerates.

Generated by Claude (Anthropic) from the structured weather, soil, and phenology data on this page. The LLM can misread edge cases — treat this as a starting hypothesis, not a guarantee. Always verify conditions on the ground before committing to a long drive.