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2,300–3,400 ft · NE🚗 Directions
Central Nebraska river bottoms — the Platte, Loup, and Dismal River corridors across Custer, Lincoln, and Valley counties. Cottonwood, green ash, American elm, and box elder in riparian strips through the Sandhills grassland. Calamus Reservoir, Victoria Springs SRA, and Chadron SP for public access. Riparian morels in dying elm bottoms; cottonwood oyster mushroom year-round.
Updated Aug 27, 4:22 AM MT
**Central NE Tier A Justification** This is a dry-spell A-tier call—you've got the thermal window (75°F soil) and no active drought stress, but the 14-day precipitation barely scratches the surface while the last week delivered almost nothing. Oyster, Chicken of the Woods, and Dune Stinkhorn are all viable here because they tolerate marginal moisture and fruit on wood/sandy substrates that don't require soil saturation. The 0.05 VWC today is genuinely marginal, which caps production volume but doesn't kill fruiting outright—these species will still fruit, just more sparingly and concentrated around recently-logged deadfall and old snags where wood-moisture retention is better than exposed soil. Moisture is your hard limiter; watch for afternoon thunderstorm development over the next 5 days, which would push this into prime territory. If you see 0.5"+ in a 24-hour window, fungal response typically lags by 3–5 days. **Hot tip:** Scout your Chicken of the Woods sites *now*—they're already initiating on stressed cottonwoods and willows along the riparian corridor; a rain event in 48–72 hours will trigger a flush you'll want to catch before the beetles do.
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.
0.31"
PRISM 4km · thru 08-25
Precip 14d
Observed precipitation from PRISM 4km gridded analysis, sampled at the region centroid through 2026-08-25. Used when no SNOTEL/SCAN station is mapped to this region.2.34"
PRISM 4km · thru 08-25
Soil Temp
76°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
moisture marginal (today 0.05 VWC, 7d avg 0.07 — sustained dry)
moisture marginal (today 0.05 VWC, 7d avg 0.07 — sustained dry)
moisture marginal (today 0.05 VWC, 7d avg 0.07 — sustained dry)
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.