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What is the "Advanced Weather" chart and what does it tell me?

Advanced Weather Chart

The Advanced Weather chart shows a forecasted or historical weather map for the course based on both location and time. The chart shows 12 sets of forecasted/historical weather data from points along the course corresponding to the time that the athlete will be crossing into those zones. This data is pulled in from the closest weather station to the zone that the athlete is estimated to be in at that time.

Temperature

Temperature is shown in either degrees Celsius or Fahrenheit depending on your unit settings.

Humidity

Relative humidity is the ratio of the current absolute humidity to the highest possible absolute humidity (which depends on the current air temperature). A reading of 100 percent relative humidity means that the air is totally saturated with water vapor.

Pressure

Barometric pressure (also known as atmospheric pressure) is the force exerted by the atmosphere at a given point. It is known as the "weight of the air". Measurement of barometric pressure is in bars, with normal pressure at sea level being 1.013 bars.

Wind Speed & Direction

Wind speed is shown in either miles per hour or kilometers per hour depending on your unit settings. The wind direction is shown in degrees and represents the direction that the wind is coming from, with true north at 0° and progressing clockwise. The graphic arrows point in the direction that the wind is going and are positioned relative to the course map, with north being at the top of the map.

advanced weather chart

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