Quick Answer
Assess heatstroke risk by monitoring temperatures, humidity, wind speed, and hiker's physical condition, particularly in temperatures above 86°F (30°C), especially when humidity is high or winds are calm.
Environmental Factors
When assessing heatstroke risk, consider the ambient temperature and humidity. Temperatures above 86°F (30°C) increase the risk, especially when humidity is high (60% or more). Wind speed also plays a role, as gusts over 5 mph can disrupt heat gain. Monitor these factors, especially if you’re hiking in direct sunlight or at lower elevations.
Hiker’s Physical Condition
Pay close attention to the hiker’s physical condition. Look for signs of heat-related illnesses, such as rapid breathing, headaches, dizziness, or nausea. Monitor their body temperature, checking for a temperature above 103°F (39.4°C). Use a thermometer to verify, as prolonged exposure can lead to brain damage.
Prevention and Response
To prevent heatstroke, make sure hikers drink at least 16 ounces of water every hour, and consume electrolyte-rich snacks regularly. In the event of a heat-related emergency, remove excess clothing, provide cool water, and cool the body using wet cloths or a cooling bandana. If the hiker’s temperature exceeds 104°F (40°C), seek medical attention immediately.
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