Time Trialists: 2. The Map

Now that we have the basics set up for an accurate time trial forecast, we covered this in part 1, we are now ready to assess the forecast.

Key weather map features for Cycling Time Trials

  1. Weather overview: Every forecast has a weather overview at the start and along the route where changes to the weather are detected. Within the overview box the following details are displayed: Wind Direction, Wind Speed, Temperature and Air Density.

    Weather Overviews are displayed along the course where weather changes are detected.
    Weather Overviews are displayed along the course where weather changes are detected.
  2. Wind Lines: The colourful Wind Lines illuminate the apparent wind direction along the course. Light blue indicates a tailwind, dark blue and purple crosswind and deep red a headwind. Use the colours to instantly see where the wind will assist or hamper your progress. Tip: You may consider increasing your effort into the red sections to limit your time exposed to the slower conditions.

    Wind Lines show the apparent wind direction.
    Wind Lines show the apparent wind direction.
  3. Crosswind Warnings: When running deep section front wheels knowing where the crosswinds are and how severe the wind speed will be is useful. When warnings are displayed a shallower rim width may be preferable.

    Crosswind warning markers show where the crosswinds are at there strongest.
    Crosswind warning markers show where the crosswinds are at there strongest.
  4. Eye on the Ground: On the day of your time trial the Eye on the Ground shows a recent image from locations near the course.
    Eye on the Ground
    Eye on the Ground

    In our next post we find out how to use key charts to get the best time possible in the conditions.

Time Trialists: 1. Setting up your forecast

Racing a time trial is all about squeezing every bit of your potential out within the distance and time set. Falling short in race preparation is a disservice to the efforts you make in training, lifestyle and during the race itself. In this series of posts I will guide you on how to get the most out of myWindsock.com cycling weather forecasts for your time trial event.

Let’s take a look at how to get set up with the most accurate forecast.

Time trial course loaded
Time trial course loaded

The very first thing to do with any forecast is check the time and date of the forecast. If you have used the Open Events directory or Time Trial Finder this should be correct but it’s worth checking or adjusting for later start times. Click the icon to reveal the available forecasts.

Before we start checking out the numbers we first of all I need to check that the physics engine is using good estimates for my expected performance on the day. Clicking the icon in the top left corner reveals the Performance options tab. From here I can set some loose parameters for the physics engine to use when making predictions and metric calculations.

Adjust the parameters for accurate forecasting
Adjust the parameters for accurate forecasting

If you don’t know what numbers to enter for Watts, Rolling resistance and CdA check out the advice here Performance Options.

In the next article we look at getting the most out of the myWindsock forecast maps and charts.