Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.
Q: Paragraph: The Lewiston Tribune reports health officials and the Nez Perce Tribe have urged people to use caution when spending time in or near the water. A release from Public Health Idaho North Central District states that blue-green algae is a natural part of Idaho's water bodies. But when temperatures rise, their populations can bloom, and toxic chemical compounds can be released into the water. Those spending time near surface water with a health advisory are urged to avoid swimming, wading or other activities. Health officials say people should not drink or cook with water containing a bloom. ___ Information from: Lewiston Tribune, http://www.lmtribune.com Claim: Advisory in place for Idaho's Winchester Lake.
A:
A public health advisory is in place for Winchester Lake after testing indicated elevated levels of toxins produced by blue-green algae.