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    Region/District: Graubünden
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    Limited Seeing Prediction Until Midnight

    You can subscribe to an extended five day seeing prediction with p☼int+:
    meteoblue.com forecast Lu (10.37°E / 46.63°N)     last update: 29.07  17:04 UTC
    Thu 29.07.2010               05:58       20:51    meteoblue.com
    Time (CEST) 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
    High Clouds (%) 99 76 59 48 44 43 40 31 20 10
    Mid Clouds (%) 98 74 56 44 39 38 39 37 35 33
    Low Clouds (%) 99 71 50 37 31 31 33 33 32 32
    Seeing Index 1 5 5 5 5 4 4 4 4 4 4
    Seeing Index 2 4 4 4 4 3 2 2 2 2 2
    Seeing arcSeconds 0.51 0.49 0.49 0.51 0.55 0.60 0.65 0.70 0.73 0.75
    Jet stream (m/s) 82 51 28 14 8 9 11 11 10 9
    2m Rel. Hum. (%) 5 31 53 69 79 86 90 94 97 99
    Bad Layers Top (km) 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5 10.5
    Bad Layers Bot (km) 9.3 9.3 9.3 9.3 8.2 8.2 8.2 8.2 8.2 8.2
    Bad Layers K/100m 0.83 0.78 0.78 0.83 0.74 0.83 0.91 0.97 1.01 1.05


    Values may not reflect precisely reality.(Ver. 2.3, 14.6.2009)
    • For good seeing conditions look for dark blue colors in the cloud cover and green values in the Seeing Indices and Jet Stream
    • The estimated seeing indexes (1 & 2) range from 1 (poor) to 5 (excellent) seeing conditions. This value is computed based on the integration of turbulent layers in the atmosphere.
    • NEW! Estimation of seeing in arcseconds. This is a test prediction under development, uncalibrated for the time being.
    • Cloud cover ranges from dark blue (0% cover) to white (100% cover). Fog or very low cloud is not shown here (see pictocast for fog)
    • High jetstream speeds (>35m/s) usually correspond to bad seeing, as well as very low speeds (<5m/s). Color gives a hint.
    • Bad Layers have a Temperature Gradient > 0.5K/100m. The actual gradient is shown K/100m. The top and bottom height of the Bad layers is indicated by Bad Layers bot/top