Gale web page features
When a station reported gale, a symbol would be shown on the world map on the front page. Symbols of different shapes and colours are used to indicate whether the observation was reported in the most recent synoptic hour or reported
6, 12, 18 or 24 hours earlier.
In the zoom-in maps, gale icons are used to indicate the location of gale occurrence.
reported at the latest synoptic hour;
reported 6 hours earlier;
reported 12 hours earlier;
reported 18 hours earlier;
reported 24 hours earlier.
Clicking or putting the mouse cursor over a gale icon will open a window
showing the reporting station(s) around that location.
List of stations reporting gale or wind speed above gale in the past 24 hours, the corresponding country and the location of the stations in latitude and longitude units, could be viewed by clicking on the corresponding links below the map.
Definition of Gale Wind speed greater than or equal to 34 knots or 18 m/s.
Source of data The data are based on weather observations extracted from SYNOP reports from land stations and ships of WMO members.
Only limited data quality checks are applied, care must be taken in interpreting or using the gale data.
For conversion between knots and m/s, the formula 1 m/s = 1.94 knots is employed.
Please note that the altitude of land stations would affect the observed wind speed. The altitude of the station is the reference level to which barometeric pressure reports at the station refer.