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1       Introduction 

Hazard 

This topic will cover how to use the Hazard tab located in the layers menu. 

We estimate that this will take 3 minutes to complete.

Hazard

The hazard tab located in the layers menu will cover some enhanced flight hazards to help you optimize flight routes or make better flight decisions based on these hazards. These hazards include:
 

        Global ozone forecast: forecasting position and the concentration of the ozone layer.
 

        EDR turbulence: presenting you with turbulence at multiple of flight levels as well as forecast periods for global or NAM (North American Mesoscale Model)
 

        Icing forecast: this provides you with forecasts for icing over a multiple of flight levels as well as forecast periods over NAM and globally.
 

        EDR thunderstorms forecast: forecasting convective activity and intensity for multiple forecasts periods that covers the globe and NAM.

The hazard tab is only available when you have signed up to at least one region. 

2       Global Ozone Forecast 

Let's start by looking at the Global Ozone Forecast.

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Interaction 1 Click the Layers menu button.

Interaction 2 Click the Global Ozone Forecast input field.

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Once turned on you can clearly see where the layer of ozone has featured. Currently it is showing the forecast for the next six hours. We can change the forecasted hours to 6,12,18 and 24. Let's go ahead and change the time.

Interaction 1 Click the Forecast hours + button.

The ozone forecast has two separate colors indicated different concentration levels these are as follows:

 

 

Clicking within the shape will bring up detailed information.

 

0.25ppm is parts per million. It is a concentration measurement. This would indicate that their is 0.25 parts of gas (ozone) in every 1 million parts of total gas.

Increasing the time from six to twelve has now changed the shape of the ozone warning.

To turn off the feature just move the slider over to the left. 

3       EDR Turbulence 

Let's look at the turbulence levels. 

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Interaction 1 Click the Layers menu button.

Interaction 2 Click the EDR Turbulence input field.

EDR (Eddy Dissipation Rate) is an objective, aircraft-independent, measure of turbulence based on the rate at which energy dissipates in the atmosphere. It is, therefore, a universal measure of the turbulent state of the atmosphere. It will present you with turbulence at multiple flight levels aswell as forecast periods.  Your choice of flight levels are from 050, 100, 125, 180, 240, 270, 300, 320, 340, 370, 390, 450, and 530.

You will be able to view the turbulence either globally of for NAM by turning them on. As we are currently over US let's turn on the NAM turbulence at FL240.

Interaction 3 Click the NAM slider.

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You can now see the turbulence presented clearly over north America. 

The colors of the turbulence is based off the following table:
 
 

The legend will show the relative intensities for each type of aircraft. The aircraft weight (Heavy, Medium, Light). The legend will show the turbulence intensity based on EDR value as either light, moderate, severe or extreme in the color bar. The bar for each aircraft weight is shown.

You will be able to view the turbulence at different flight levels by using the buttons. Lets's have a look at changing the flight level.

Interaction 1 Click the NAM FL - button.

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You can see that you have changed the flight level, let's now look at changing the time.

Interaction 1 Click Next Hours +.

You can see that we are now looking at turbulence for FL180 forecasted in the next three hours. The forecast periods available are 1-18 hours in the future.

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Clicking on parts of the turbulence will bring up some detailed information for you to read.

Interaction 1 Click the Close button.

The current EDR value present is 0.2. Typically EDR varies from close to 0, "smooth", to near 1, "extreme for most aircraft types.
 
The actual EDR table display contours which are multiplied by 100. So in our example 0.2x100= 20, which is situated in the green area.

Interaction 1

Interaction 1 Click Global.

NAM turbulence has now been turned off so let's now look at turning on the Global turbulence. You can change the flight level similar to what you did when looking at  NAM and the forecast period from 6-36 hours in the future.

We can now see the turbulence globally which is graphically different to viewing NAM turbulence. Clicking on part of the shape will present you with detailed information. Remember to multiply the value by 100 to get the EDR rate.

The colors of the turbulence is based off the following table:
 
 

The legend will show the relative intensities for each type of aircraft. The aircraft weight (Heavy, Medium, Light). The legend will show the turbulence intensity based on EDR value as either light, moderate, severe or extreme in the color bar. The bar for each aircraft weight is shown.

4       Icing Forecast

Let's turn on the icing forecast.

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Interaction 1 Click the Icing Forecast slider.

Icing can be visible globally or NAM only. Icing will present you with graphical forecasts of slight, moderate and heavy icing. Let's have a look at some by turning on the global icing.

Interaction 2 Click the Global slider.

Interaction 1

You are now viewing icing at FL050 for the next 6 hours. Let's see what happens when we turn on NAM icing forecast. 

Interaction 1 Click the NAM slider.

Icing is set for all aircraft types and color coded to different intensities these are as follows:
 

You can change the global flight level and hours by using the  + and - buttons. The forecast periods are from 6 - 36 hours in the future. 

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The depiction is slightly different for NAM so lets turn of global to make it more clear.

Interaction 1 Click the Global slider.

NAM hours forecast periods are from 1-18 hours in the future.

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Now we are looking at only NAM icing conditions. Clicking on any part of the image will bring up detailed information.

 

You can see here that you will get a good indication on the category of the icing.
 

Interaction 1 Click the Close button.

5       EDR Thunderstorms forecast

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Interaction 1 Click the EDR Thunderstorms Forecast slider.

EDR thunderstorm forecast will present you with a forecast for convective activity and intensity that covers a global and North America scale. Let's have look at the global thunderstorm forecast for six hours into the future.

Interaction 2 Click the Global slider.

We can now see the forecast thunderstorms globally for the next six hours. The colors are related to the convective intensity.

Clicking within the image will bring up some detailed information, which we can look at in the next slide.

Interaction 1 Please click Next to continue.

The forecast period available for you to select is from a period of  6-36 hours in the future. Use the  to change the time.

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You can see detailed information regarding an area of thunderstorm that you have clicked on. Vertical velocity intensity is from 5-50+ meters/second. The higher the numbers the more intense activity is forecasted.

Interaction 1 Click the Close button.

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Interaction 1 Click the NAM slider.

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We will need to turn off the global weather so we can see NAM weather more clearer as the image is slightly different.

Interaction 1 Click the Global slider.

You can now see the NAM thunderstorm forecast for one hour into the future. Similar to the global convective scale you can click on the layer and this will bring up some detailed information.

The forecast period available for you to select by using the buttons is from 1-18 hours into the future.

The depiction for NAM and global thunderstorm is a little different however the colors and the information that can be presented still uses the same scale.