Rye Patch State Recreation Area (Updated October 5, 2026)
Rye Patch Reservoir, located in Rye Patch State Recreation Area, has been placed under a HAB Watch Advisory due to a possible Harmful Algae Bloom. Visual assessments have indicated a possible bloom. These toxic algae can cause serious health issues for humans and animals.
Wild Horse State Recreation Area (Updated October 5, 2026)
WIld Horse Reservoir, located in Wild Horse State Recreation Area, has been placed under a HAB Watch Advisory due to a possible Harmful Algae Bloom. Visual assessments have indicated a possible bloom. These toxic algae can cause serious health issues for humans and animals.
Lahontan State Recreation Area (updated November 2, 2026)
Lahontan Reservoir, located in Lahontan State Recreation Area, has been downgraded to a Harmful Algal Bloom (HAB) WARNING Advisory. Visual and satellite imagery assessments have indicated a continued presence of Cyanobacteria. Water tests conducted by the Nevada Division of Environmental Protection (NDEP), have shown a decrease in cyantoxins from the DANGER advisory. These toxic algae can cause serious health issues for humans and animals.
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