Helena / Big Belts

# Helena / Big Belts — Tier A Summary You're looking at a rare sweet spot: soil temps locked at 66°F with a full week of sustained moisture (0.19 VWC average) behind you, and the moisture trigger just hit. That's why this region cracked Tier A despite minimal recent precip (0.06" in 7 days)—the 2.07" in the prior two weeks built a reservoir that's still feeding the fruiting window. Reishi, both boletes, Birch Polypore, and The Prince are your anchors; the Amanitas (Panther Cap, Coker's, The Sickener) are also hot but demand habitat specificity. The catch: you're on borrowed time. Desiccation risk is high, meaning that soil moisture buffer depletes faster than new rain replaces it. Any dry spell over the next 5–7 days will collapse fruiting, especially for the softer species (Prince, scabers). Watch soil temps; if they climb past 68°F, evaporative pressure accelerates. **Hot tip:** Focus north-aspect slopes and riparian edges where soil stays cooler and retains moisture longest—your fruiting window may contract to 48 hours if heat and dryness conspire.

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.