The TAF board is a time series display of weather conditions. There are two formats for the board: condensed and expanded.
The condensed view lists any number of stations along the vertical axist and time along the horizontal axis (See Fig 1). The first column is the latest observation. Each box (hourly forecasts from TAF) is color coded based on the level of the hazard. Green represents no hazard, yellow minimal hazard, red significant hazard and purple major hazard. The letters in the box represent the cause of the hazard. They are as follows:
There could be multiple hazards but only the top one from this list if shown.
The cutoffs for each color are shown in Fig. 2. The default criteria use the flight category cutoffs
For more detailed information for each site, click on the station identifier. This will go to the expanded view for each site. In this view, each weather condition is listed along the vertical axis (See Fig. 3). These are:
In addition, for airports with runway information, cross and head wind values are also displayed. These are available for each runway set for that airport. If an airport has three parallel runways, only one is shown. The runway is shown as RXX/XX with the primary and reciprocal headings. The wind data is computed based on actual runway direction relative to due north.
Here is a list of the URL options: