Introduction

Display tropopause heights and lows 

In this topic, you learn how to display indicators for tropopause heights and lows on the map. 

We estimate that this will take 2 minutes to complete.

Detailed Explanation 

Forecast tropopause heights and lows 

The elevation at which tropopause heights and lows occur can be an important factor for aircraft engine performance along a planned flight path when potentially significant weather, such as a thunderstorm, is forecast.

You can use the Tropopause heights and lows weather layer to show the forecast heights and lows as updated at 06:00, 12:00, 18:00 and 00:00 to include this information in your flight planning and tracking activities.

Click the Layers button.

Click the BASIC tab.

Navigate to the Tropopause Heights and Lows option.

 Scroll, as needed, to the bottom of the tab. 

Click the Tropopause Heights and Lows slider.

You may need to scroll again to display the option's sub-pane. 

You can display the forecast heights and the forecast lows independently, or together.

 For this example, enable both sliders. 

Click the Heights Forecast Hours slider.

HINT 

By default, the forecast heights and lows display for 6 hours in the future. The forecast is updated at 06:00, 12:00, 18:00 and 24:00 (00:00). You can use the  control to display the forecast farther out from the current time to see trends.

Click the Lows Forecast Hours slider.

The white double lines that look like elevation lines represent the forecast tropopause heights. 

As with other weather features, if you hover your mouse near the Forecast Height line, N-Tracking displays more detailed information, indicating the tropopause height is located at 40,000 ft.

The shield-shaped icons indicate tropopause lows and the flight levels at which they occur; in this example, 42,000 ft. 

SUCCESS 

Congratulations! You can display tropopause forecast heights and lows to assist to your weather monitoring and flight planning and tracking activities.