Yosemite National Park has issued critical safety warnings following a tragic incident involving a falling tree branch that claimed a visitor's life. Park officials emphasize that oak limbs can collapse unexpectedly during warm weather conditions, even without wind or visible structural damage. Visitors are strongly advised to avoid positioning themselves or establishing campsites beneath large branches, particularly during summer months when thermal stress weakens tree integrity. This preventive measure underscores the importance of understanding natural hazards in wilderness environments.

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