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Screenshot of TroutCast tool showing colored dots on a map of Montana's rivers. The dots represent population forecasts for brown trout.

TroutCast

TroutCast is an interactive tool that helps users explore the projected impacts of drought on trout across Montana’s renowned blue-ribbon rivers.

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Two anglers on the banks on a Montana river with snow-capped mountains in the background. Photo by the U.S. Geological Survey.
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New TroutCast Tool Brings Drought Forecasting to Montana’s Blue-Ribbon Trout Rivers

A new interactive web-based tool, TroutCast, launched on June 1, 2026 to help forecast drought impacts on trout populations and support fisheries and water management across Montana’s renowned blue-ribbon rivers. Funded by the National Oceanic and Atmospheric Administration National Integrated Drought Information System (NOAA-NIDIS) and developed through a partnership among the U.S.
Dry, cracked earth representing drought.
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NIDIS Awards Over $6.2 Million for Projects on Ecological Drought and Tribal Drought Resilience

NOAA’s National Integrated Drought Information System (NIDIS) has announced a total annual award of $6.2 million to support 12 new, innovative, and impactful projects that will improve our nation’s resilience at a critical time in the fight against the drought crisis. The projects will focus on ecological drought and building tribal drought resilience. NIDIS is funding seven new 2-year
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