Surface Analyses & Observations / Europe / Europe
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Weather symbol legends
- Red (upper-left): temperature (°C)
- Green (lower-left): dewpoint (°C)
- Blue (upper-right): abbreviated mean sea-level pressure in hPa (=mb). To get the pressure value, just put a 10 or a 9 in front of the displayed value and divide by 10: only one of these choices will give a realistic value.
- Magenta (center-left): weather symbol
- Blue (center): cloud cover in octa
- Blue (barb): wind speed in knots and wind direction
- Orange: pressure tendency in the last 3 hours in tenth of hPa
- Upper-center and lower-center (few stations): cloud type symbols
- Black lines: pressure (hPa=mb) lines each 4 hPa analyzed with Barnes algorithm from surface observations and first guess model data (digital filter)
- Red dashed-lines: geopotential height at 500 hPa each 6 dam analyzed with Barnes algorithm from upper-air observations and first guess model data
Decoding time stamp example:
sfc/130524/0500 upa/130524/00
sfc = Surface
130524/0500: year=2013; month=05 (May); day=24; 0500=05:00 UTC
upa = Upper-air
130524/00: year=2013; month=05 (May); day=24; 00=00 UTC