Squall with drifting or blowing dust or sand 58 020063 Missing value 1023 020063 Line squall with drifting or blowing dust or sand 59 020063 Variation of temperature not observed 67 020063 Brocken spectre 80 020063 Mirage - No specification 10 020063 Mirage - Image of distant object raised (looming) 11 020063 Solar or lunar halo 82 020063 Mirage 88 020063 Temperature steady 60 020063 Hoar frost on horizontal and vertical surfaces 41 020063 Deep-red coloration of clouds at sunrise associated with a tropical disturbance 32 020063 Slight coloration of clouds at sunset associated with a tropical disturbance 33 020063 Deep-red coloration of clouds at sunset associated with a tropical disturbance 34 020063 Twilight glow on the mountains (Alpenglühen) 87 020063 Highest wind speed gusts greater than 11.5 m/s 1 020063 Calm or light wind followed by a squall 50 020063 Irregular variation, oscillations of temperature passing through 0°C 65 020063 Calm or light wind followed by a succession of squalls 51 020063 Squall approaching station 56 020063 Precipitation containing sand or desert dust 42 020063 Mirage - Complex, multiple images of distant object (images not inverted) 14 020063 Mirage - Complex, multiple images of distant object (some images being inverted) 15 020063 Visibility has decreased (sun* visible) towards direction specified 74 020063 Highest mean wind speed greater than 17.5 m/s 2 020063 Visibility has decreased (sun* invisible) towards direction specified 75 020063 Irregular variation, oscillations of temperature not passing through 0°C 66 020063 Convergence of CH clouds at a point above 45° associated with a tropical disturbance 38 020063 Variation of temperature unknown owing to lack of thermograph 69 020063 Corona 85 020063 Visibility greater than 100 000 m 7 020063 Hoar frost on horizontal surfaces 40 020063 Mirage - Inverted image of distant object 13 020063 Day darkness, very bad, worst in direction specified 21 020063 Moving patches or banks of fog 79 020063 Twilight glow 86 020063 Visibility has increased (sun* visible) towards direction specified 72 020063 Visibility has increased (sun* invisible) towards direction specified 73 020063 Temperature rising to a value above 0°C 64 020063 Convergence of CH clouds at a point above 45° associated with a tropical disturbance 36 020063 1 Convergence of CH clouds at a point below 45° dissolving or diminishing and associated with a tropical disturbance 37 020063 Slight coloration of clouds at sunrise associated with a tropical disturbance 31 020063 Temperature falling to a value below 0°C 63 020063 Squall followed by gusty weather 54 020063 General gusty weather with squall at intervals 55 020063 Mirage - Moon visible, although astronomically below the horizon 18 020063 Visibility has not varied (sun* visible) towards direction specified 70 020063 Mirage - Image of distant object raised clear above the horizon 12 020063 Not allocated 68 020063 Sun pillar 84 020063 Special phenomena Fog has dispersed without regard to direction 78 020063 Day darkness, bad, worst in direction specified 20 020063 Day darkness, black, worst in direction specified 22 020063 Parhelia or anthelia 83 020063 Zodiacal light 89 020063 Temperature falling, without going below 0°C 61 020063 2014-09-03T09:54:55.963Z Gusty weather followed by a squall 52 020063 Gusty weather followed by a succession of squalls 53 020063 St Elmo's fire 90 020063 Mirage - Sun or moon seen appreciably distorted 16 020063 Rainbow 81 020063 Mirage - Sun visible, although astronomically below the horizon 17 020063 Visibility has not varied (sun* invisible) towards direction specified 71 020063 Fog coming from direction specified 76 020063 Temperature rising, without going above 0°C 62 020063 Fog has lifted, without dissipating 77 020063 Convergence of CH clouds at a point below 45° forming or increasing and associated with a tropical disturbance 35 020063 Precipitation containing volcanic ash 43 020063 Line squall 57 020063