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700–1,300 ft · IA🚗 Directions
Southern Iowa rolling hills with oak-hickory forest remnants and old apple orchards. Stephens SF, Lake Red Rock area, and scattered timber along creek corridors. Dying ash and elm are reliable morel producers.
Updated May 29, 4:10 AM MT
**Tier A Rating Justified** Southern Iowa is locked in a perfect ecological window: soil at 71°F has sustained the threshold for a week straight, and moisture averaging 0.21 VWC across that period—despite zero rain in the last 7 days—means the substrate is still adequately hydrated from that 3.4" two weeks back. You're looking at 31 viable species across saprobes, wood decay agents, and spring ephemerals, all firing simultaneously. **The Play** Focus on the wood-dependent tier: Turkey Tail, Aspen Oyster, Birch Polypore, and the maze polypores. These don't depend on soil moisture as much as wood moisture, which is still elevated. Dryad's Saddle and Half-Free Morels are your last window before temps push them off the table—both are peaking now. Skip the slime molds and soft cups unless you're on fresh duff; they're marginal here in late May. **Watch for Desiccation** The high desiccation risk is the only brake on this tier. Zero rain in 7 days means soil VWC will drop fast if temps stay warm and winds pick up. You have maybe 3–4 days before moisture becomes the limiter instead of the catalyst. Hot tip: Hunt north-facing hardwood slopes and dense understory where wood stays moist longest—that's where your Turkey Tail and maze polypore payoff happens before the dry kicks in.
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.
Precip 7d
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⚠ Road Access Notice
Always verify road access is public before following GPS directions to mountain areas. Many forest roads are seasonal, gated, or require 4WD. Dispersed camping follows USFS/BLM rules (typically 14-day limit). Check ranger district offices for current road and campground conditions.
0.00"
PRISM 4km · thru 05-27
Precip 14d
Observed precipitation from PRISM 4km gridded analysis, sampled at the region centroid through 2026-05-27. Used when no SNOTEL/SCAN station is mapped to this region.3.40"
PRISM 4km · thru 05-27
Soil Temp
71°F
SWE
Snow Water Equivalent — how much water is in the snowpack vs. normal. Declining SWE means snowmelt is adding moisture to the soil.0%
Drought
None
Snowmelt
complete
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
All conditions met (soil 71°F, sustained 7/7 days above threshold, today 0.18 VWC, 7d avg 0.21 — moisture sustained)
Primordia readiness: Cold = mycelium dormant. Activating = soil warming, primordia building. Primed = 5+ sustained warm days at species threshold; fruiting imminent if moisture cooperates. Based on Schmidt 1983 / Mihail 2007.