There are links on the station page for further information:Ĭomplementary site showing historical weather. Winds are less than 5 knots (13% at KSFO). In bothĭiagrams the percentage in the middle indicates how often the You may hover the mouse over a bar to see exact textual data. The strongest winds come from 270°, 15kts 11% of the time. Proportional to average speed and colour is proportional to frequency.Īt KSFO northeast winds are rare, and when they come they tend to be light. The same data as the wind rose but emphasizes wind speed. The wind is pretty much always from the west. Of each bar is proportional to the frequency the wind comes from each directionĪnd the colour is proportional to the average speed. The station view shows the prevailing winds for a single Very far the wind roses are replaced by dots for performance. Type a four character station ID in the searchīox to go directly to a station.
The example image above is for central California showing prevailing winds off theīay and from the northwest in the central valley.
It supports the usual pan and zoom interface. Shows small wind rose diagrams for some 2500 stations in North America. It was developed to help pilots better understand typical wind patterns.īay and the station view makes it apparent why Shows the prevailing winds at various weather reporting stations, mostlyĪirports.
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