The Chicago area is expecting a heat index of 100 to 105 degrees Fahrenheit (38 to 40 degrees Celsius) Wednesday, July 12, 2017. This means the combined heat and humidity will make it feel hotter than the temperature alone, creating a high potential for heat stress.
To minimize potential overexposure to heat stress, Health, Safety, and Environment (HSE) recommends that work in these high heat index conditions be evaluated and rescheduled when possible when it is safe to do so. If rescheduling is not practical, contact your Industrial Hygienist or Mike Schmoldt (HSE) at ext. 2-1213 or 608-308-5039 (cell).
Where work requires partial or full protective clothing, more than moderate muscular exertion or work in direct sun or radiant heat, then this work is expected to result in high heat stress conditions that may exceed the limits described in LMS-PROC-169 Control of Occupational Heat Stress, and may require physiological monitoring and careful planning.