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    Heat notifications ensure summer safety

    190723-F-RT629-1001

    Photo By Caroline Clauson | Instead of measuring ambient temperature alone, the Wet Bulb Globe Temperature (WBGT)...... read more read more

    WRIGHT-PATTERSON AIR FORCE BASE, OH, UNITED STATES

    07.23.2019

    Courtesy Story

    88th Air Base Wing Public Affairs

    Heat notifications ensure summer safety
    By Caroline Clauson
    88th Air Base Wing Public Affairs
    WRIGHT-PATTERSON AIR FORCE BASE, Ohio – The wet-bulb globe temperature (WBGT) hit 91.2 degrees on July 15 at Wright-Patterson Air Force Base, signaling a black flag warning. Whether in ABUs, T-shirt or suit and tie, Airmen scanning cards at the gate, watering plants, jogging at Jarvis and unloading materials are taking the heat on base this summer.

    AdHoc regularly alerts Airmen about high WBGT and heat risks, many aren’t sure what the notifications popping up on their monitors mean until they walk outside for their next duty.

    First used by the Marines for training in muggy South Carolina, the WBGT indicates how much the summer heat could stress Airmen’s bodies while they work in the sun and recommends water intake and rest periods to help prevent heat injury.

    Instead of measuring ambient temperature alone, the WBGT accounts for humidity through the wet-bulb temperature and wind, cloud cover and the angle of the sun through the globe thermometer temperature, all factors that can make the air feel hotter or prevent the body from releasing heat through sweat evaporation.

    Military jobs and protocols often ramp up the heat even higher. According to Air Force Instruction 48-151, wearing a second layer of clothing like chemical protective gear over ABUs or civilian clothes adds 10°F to the WBGT during easy work and 20°F during moderate or hard work. Body armor increases the WBGT by 5°F.

    Airmen at Wright-Patt must comply with Air Force guidelines for water intake and rest in order to effectively and safely carry out their missions in the sun this season.

    Work Guidelines:
    • Rest: Taking a break from the current outdoor activity to stand or sit in the shade if possible.

    • Easy Work: Walking on hard surfaces at 2.5 mph with a less than 30 pound load. Guard duty and drill and ceremony are example.

    • Moderate Work: Walking on hard surfaces at 3.5 mph with a less than 40 pound load. Activities such as light maintenance work and construction equipment operation are moderate.

    • Hard Work: Walking on hard surfaces at 3.5 mph with a more than 40 pound weight. Loading and unloading pallets and dragging hoses or lines are considered hard work.

    For more information, see Air Force Instruction 48-151: https://static.e-publishing.af.mil/production/1/af_sg/publication/afi48-151/afi48-151.pdf

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    NEWS INFO

    Date Taken: 07.23.2019
    Date Posted: 07.24.2019 14:58
    Story ID: 332833
    Location: WRIGHT-PATTERSON AIR FORCE BASE, OH, US 

    Web Views: 17
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