A Wind chart is generated with a Graphical (HTML) briefing, whereas a Wind/Temp/Turb chart is generated with the Graphical (PDF) briefing. Both charts are nearly identical, containing the following elements:
En Route Altitude - The en route altitude is listed as a flight level (FL).
Valid Time - The estimated time of departure.
Data Source - Each chart lists information about the data source and the date and time when the weather data was reported.
Latitude - Latitude values are added along the left and right borders of the chart.
Longitude - Longitude values are added along the top and bottom borders of the chart.
Wind Barbs - Winds barbs indicate the wind direction based on the forecast at the estimated time of departure. The barbed end is the “from” end, and the dotted end is the “to” end. The barbed end indicates wind speed as follows:
- Short barbs indicate 5 knots of wind.
- Tall barbs indicate 10 knots of wind.
- Triangular (or pennants) barbs indicate 50 knots.
Add the sum of the values represented by the barb symbols to determine the wind speed.
Temperature - The temperature is displayed as negative degrees Celsius unless a plus sign (+) is noted next to the temperature value. The temperature is based on the forecast at the estimated time of departure.
Sample Wind chart seen in a Graphical (HTML) flight briefing
The Graphical (PDF) briefing adds turbulence information on the map. The turbulence EDR scale is at the bottom of the flight and forecast information box.
Sample Wind/Temp/Turb chart seen in a Graphical (PDF) flight briefing