Heat safety for outdoor crews

Know the safe work pace for every hour, before the shift starts.

Aeonis Heat turns the National Weather Service hourly wet-bulb globe temperature forecast into a work/rest and water plan for your crew's workload, at any US address.

Time
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WBGT
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Moderate work, acclimatized
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Plan a shift, free How it works

The problem

Heat is the weather hazard you can plan around.

The National Weather Service already forecasts wet-bulb globe temperature (WBGT) hour by hour. WBGT is the heat measure NIOSH work limits use: it accounts for sun, humidity and wind, not just air temperature. Aeonis Heat does the math for you, so supervisors don't have to.

Live preview

The next 12 hours in Phoenix.

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Hour-by-hour work/rest

For light, moderate, heavy or very heavy work, see the work minutes per hour that keep the crew under the NIOSH limit.

Best shift start

Pick an 8, 10 or 12-hour shift and we find the start time that allows the most work over the next three days.

New-worker mode

New and returning workers have a lower limit (the NIOSH RAL). Switch it on for crews in their first weeks.

7-day heat calendar

168 hourly cells colour-coded by plan, so the week's hot spots show up at a glance.

Crew briefing

A printable table with WBGT, air temperature, heat index, work/rest and water for each daylight hour.

Shareable link

Every plan has a link. Send it to foremen or post it in the crew chat.

Plan today's shift.

Free. No sign-up. Any US address.

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