1       Introduction 

Regional 

This will cover the Regional subscription weather data. 

We estimate that this will take 3 minutes to complete.

2       Detailed Explanation 

Regional Weather

The Regional tab will allow you to turn on and off weather layers for your purchased region for example; If you have requested to see the region of Europe then you will not see the US region. The following layers available are:
 

        Lightning: this will give you access to cloud to ground and cloud to cloud lightning data for your purchased region.
 

        Radars: radar for different areas including colors indicating precipitation type and intensity.
 

        Tropical Forecasts: contains layers related to hurricanes, cyclones and tropical storms.
 

        Forecast winds and temperature: forecasting winds and temperature aloft and areas of high winds.
 

        Current winds and temperature: presenting the current winds and temperature aloft.
 

        Current volcanoes forecast: presenting location of current active volcanoes.
 

        Ash forecast: giving you images of the latest ash activity and forecast.
 

        Jet streams forecasts: forecast for direction, speed and location of the jet stream.
 

        Surface visibility forecast: forecast for surface visibility.
 

        Forecast surface fronts: forecast for warm, cold and occluded fronts.
 

        Forecast ceiling: forecasts for the cloud ceiling and flight category.

3       Lightning

Lightning

You can turn on and off lightning layers using the slider. Lightning layers turned on will show both real-time and delayed lightning layers. The cloud-to-ground and cloud-to-cloud lightning data for a region is are shown on the map. Both ground and cloud lightning strokes are available as layers. You can set the total minutes 5 - 60 minutes of data to display and the type of data; ground, cloud or both.
Lightning is color coded to depict age and is updated each minute.

 

   

Use the + and - buttons to increase and decrease the time in minutes.

Not all cloud lightning strokes will be counted or displayed, only a fraction of cloud lightning activity will be displayed. However, this is still enough data to warn you of approaching thunderstorms. 

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Let's have a look at the features and how they can be presented on the map.

Interaction 1 Click the Layers button.

4       Radars

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Let's start by looking at turning on the Radar layer. This will display current composite radar for your chosen area. This will include precipitation type and intensity.

Interaction 1 Click the Radars slider.

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The Radar image shown indicates precipitation type and the intensity for the US.

The Radar is split into different coverage areas as you can see here. This will give you the ability to view the weather for your current area or an area that you are flying to.

Radar, US - USA

Radar, EU - Europe

Radar, CN - Canada

Radar, AU - Australia

Radar, JA - Japan

Turning on the individual areas will display the current weather. Currently US radar is on, let's look at turning on the radar for the Canada.

Interaction 1 Click the Radar, CN slider.

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The radar weather has now been turned on for Canada and can been seen on the map.

Images are updated every 5 minutes in the US. Due to the difference in update frequency you may see one additional US radar frame when animated with Canadian radar. Canadian radar image is updated every 10 minutes. 

Interaction 1 Click the Coverage areas slider.

In order for us to determine the intensity of the falling rain or snow, different colors are used. While color schemes can be different, below are the most common colors that are used.
 

        Light green: light rain, or rain aloft not reaching ground
 

        Dark green: light to moderate rain
 

        Yellow: moderate rain
 

        Orange: heavy rain
 

        Red: very heavy rain or rain and hail
 

        White or blue: snow
 

        Pink: freezing rain or sleet or mix of winter precipitation types 

You can view the forecast of the radar trends across your chosen area by using the  buttons. You will be able to choose from current to 175 minutes in the past with five minute intervals. Currently we are viewing US and Canada current forecast.

You can see the coverage areas marked by the dotted lines. 

You can either turn off the individual coverage areas that you do not want to display or alternatively turn off the radar animation using the slider in the layers menu. 
 

By clicking on the weather radar image you will be able to view a more detailed description of the weather by clicking on parts of the radar.

The detailed weather information will present you with the time and date in UTC when the weather was taken.

Value: The number that you might see here is the dBz value and is the reflectivity detected by the radar. The following table gives you a list of dBz values and their corresponding interpretation.

 

Interaction 1 Please click Next to continue. 

5       Tropical Forecasts

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Radar has now been turned off, let's now have a look at the Tropical forecasts. 

Interaction 1 Click the Tropical, forecasts slider.

Turning on the topical forecasts will give you updated information on global tropical forecasts for hurricanes, cyclones and tropical storms.

You will be able to display different layers of the storm using the following layers. Over the next few slides we will have a look at the individual features of the tropical forecasts in more detail. We will start by turning on all model tracks.

Interaction 2 Click the All model tracks slider.

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Turning on "All model tracks" will present you with all the tracks for a given storm. The current storm that is depicted is located over the Philippines and South China Sea. Let's zoom in closer for a more clear view.

Interaction 1 Click the button.

If you find that viewing the storm tracks is not clear you can change the brightness of the map to make it more visible, this can be done under the "General" tab. You can see from the image below that all model tracks is more visible.

 

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You can now see the model tracks more easily. These lines represent the tracking of storms. In the next slide you will see how the tracking lines line up with a storm. Let's have a look at turning on the official track of the storm. 
The gray lines represent other track whilst the red line represents the official track.
Clicking on any part of the track will give you some detailed information, such as name of storm.

Interaction 1 Click the Official track slider.

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Interaction 1 Click the Track probability slider.

The official track displays all past positions of the storm. This gets updated every six hours or more frequently as needed.
The following images and their meanings:

 Tropical Storm

 Hurricane

 Tropical Depression

 Past Position

this gives us a good view of where the storm has been and the direction in which it is moving.
 

Clicking on parts of the track will give some detailed information. This information will be shown at the top right hand side of the map.

 

Displaying track probability will give you an area of the probable track of the storm displayed over land or water.

The Yellow area has a probability of low, whilst the orange area is medium and the red area is a high probability that the track of the storm could be heading in the following direction.

Clicking on an area of the storm will give you some detailed information. In this example it has given you the details for all model tracks and track probability information. This is only due to the fact that we still the following features active and visible.
 

Interaction 1 Please click Next to continue.

To reduce the clutter we have turned off the first three layers. Let's have a look at turning on wind speed forecast. 

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Interaction 1 Click Wind Speed Forecast.

Interaction 1 Please click Next to continue.

You can see the wind speed forecast shown in yellow. Clicking within the the wind diagram will present you with some detailed information. The wind will display a color-coded contoured forecast of wind data values over both land and water areas.

 

Detailed information regarding the wind. 

 

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We will leave wind speed forecast on for now and let's have a look at the rain forecast. 

Interaction 1 Click the Rain Forecast slider.

You can see that turning on the rainfall displays a color coded contoured forecast of rain data values over both land and water areas. Clicking within the colors will give you some details regarding the rainfall. You can see with the image below that amount of rainfall ( in inches) corresponds to the color on the map. 

 

The color codes are in inches. The detailed information will show the rainfall in millimeters.
 
 

Interaction 1 Please click Next to continue.

Clicking within the image will bring up detailed information about the rain forecast.

Interaction 1 Please click Next to continue.

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Let's turn on the wave forecast. 

Interaction 1 Click the Wave Forecast slider.

Wave height forecast will give you a color-coded contoured data values over water areas. Clicking within the wave information will bring up detailed information.
 

 
The color coded shows the height of the waves in feet. Clicking within the diagram will present the wave height in meters.

Interaction 1 Please click Next to continue.

6       Forecasts winds and temperature

Tropical forecasts have been turned off now. Let's look at the next feature, forecast winds and temperature.

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Interaction 1 Click the Layers button.

Interaction 2 Click the Forecast winds and temperature slider.

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Interaction 1 Click the Winds & Temps Aloft slider.

Forecast winds and temperature will display you the winds and temperature aloft and wind areas at a chosen flight level (FL) at a future time. 

Let's start by looking at the winds and temperature aloft. 

Turning on the Winds and Temps Aloft will present you with the following images. It provides you with graphics of winds and temperature at a multitude of altitudes. This presentation style is called "wind barbs" they show both wind speed and direction on a single icon. The following image will best explain the wind barbs.



The number on the wind barb represents the temperature. The direction is where the wind is coming from. So for an example:
 The wind is from the West blowing towards the East at 30 kts.
 

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You can get more detail by selecting one of the wind barbs. 

If viewing the graphics is particularly difficult try changing the brightness of the map under the General tab.

The winds aloft will only show the winds in the current window view. If you zoom out you will have to wait till the feature loads to present the new view. 

Interaction 1 Click the Wind Barb image.

Some important information regarding that particular wind barb. You can see that the temperature matches the temperature represented on the wind barb that you selected. Let's now have a look at changing the FL.

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Interaction 1 Click the Close button.

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Interaction 1 Click the Layers button.

Currently, we are looking and the winds aloft for flight level 050 (5000 feet) and in the next six hours. Using the plus and minus buttons  you are able to change the level and the future time of the forecast. Let's increase the flight level to 100 (10000 feet). The wind barbs will update automatically.

Interaction 2 Click the - + 050 button.

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Now we have changed the flight level lets look at the wind areas. 

Interaction 1 Click the Wind Areas slider.

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The wind areas graphic will present you with a contoured and color filled in polygon which will indicate areas on the map where there are high wind speeds. Very low wind speeds do not receive a color, but progressively faster wind speeds are colored from yellow, orange and red. You can find more detailed information about the wind by clicking in the graphic.

 

Currently you are viewing the wind areas for FL100, this can be changed to view different flight levels.

Interaction 1 Click the Forecast winds and temperature slider.

7       Current winds and temperature

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We have just looked at the forecasted winds and temperature, let's now have a look at the current winds and temperature. 

Interaction 1 Click the Current winds and temperature slider.

The current winds and temperature will show the current winds at a chosen flight level only. Currently, it is showing the winds aloft at flight level 050, this can be increased or decreased.

The winds aloft will only show the wind barbs in the current window view. If you zoom out you will have to wait till the feature loads to present the new view. 

8       Current volcanoes forecast

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Interaction 1 Click the Current Volcanoes Forecast slider.

Let's now have a look at the volcanoes forecast and ash forecast that you might encounter on your flight.

Interaction 1 Please click Next to continue.

Turning on the volcanoes forecast will present you with the latest advisory of volcano activity globally. You can see the volcanoes that have shown up on the map. In this image, they are indicated as gray to show no data available. There are other possible images that might be shown as well. These are as follows:

 

Clicking on a volcano will give you the name and location of that particular volcano.


  

Interaction 1 Please click Next to continue.

9       Ash forecast

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Interaction 1 Click the Ash Forecast slider.

Turning on the ash forecast will allow you to have the option to view the ash activity either currently or within a period of 6, 12 or 18 hours.
The following image gives you the heights for the ash forecast.


or alternatively you can select the volcano which will bring up some detailed information, this will be explained in the next slide.
 

Interaction 2 Please click Next to continue.

The following information is for the selected volcano 

10  Jet streams forecast

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Interaction 1 Click the Jet Streams Forecast slider.

Turning on the Jet Streams forecast will provide you a forecast for periods of 6,12,18 and 24 hours, you can change the times by using the plus and minus buttons.

You will be able to see some useful information about the winds by clicking on one of the images. This will bring up some detailed information.
 

 

Interaction 2 Click the Jet Streams Forecast slider.

11  Surface visibility forecast

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Interaction 1 Click the Surface Visibility Forecast input field.

Turning on surface visibility forecast will show you images and colors of different surface visibility. This will indicate a forecast for LIFR (low instrument flight rules) IFR (instrument flight rules) MVFR (marginal flight rules) and VFR (visual flight rules). The layers allow you to view the next 24 hours forecast periods data.

Interaction 2 Please click Next to continue.

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Clicking on the image will bring up detailed information for you to read to get a better understanding of the forecasted visibility.

Interaction 1 Click the Close button.

12  Forecast surface fronts

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Let's now have a look at the forecast surface fronts.

Interaction 1 Click Forecast Surface Fronts.

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See the basic tab for current surface fronts.

This feature presents you with current surface fonts every 3.
 Cold Front - a zone separating two air masses, of which the cooler, denser mass is advancing and replacing the warmer air.
 Warm Front - a transition zone between a mass of warm air and the cold air it is replacing.
 Trough - an area of relatively low atmospheric pressure. This is the opposite of a ridge.
 Occluded Front - a composite of two fronts, formed as a cold front overtakes a warm front. Two types of occlusions can form, a cold occlusion where the cold air is behind the cold front and a warm occlusion where the coldest air is ahead of the warm front.
 Stationary Front - a front between a warm and cold air mass that is moving very slowly.
 

Clicking on the front will bring up some detailed information.

 

Interaction 1 Click the Forecast Surface Fronts slider.

13  Forecast ceiling

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Let's now turn on the forecast ceiling. This will show you contoured polygons indicating low instrument flight rules (LIFR), instrument flight rules (IFR) and marginal visual flight rules (MVFR).

Interaction 1 Click the Forecast ceiling slider.

You can see once turned on the graphics that are presented to you. You will be able click on any part of the image to receive some detailed information about the ceiling. 

The colors will give you information on the height and which flight rules to be expected.