Limited 3 Days Seeing Prediction

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meteoblue.com forecastBilbao (2.92°W / 43.26°N)     last update: 24.05  08:50 UTC
Thu 24.05.2012              06:42       21:34    meteoblue.com
Time (CEST)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Mid Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Low Clouds (%) 0 0 0 1 9 29 52 77 90 94 89 75 51 44 44 40 34 32 39 46 52 55
Seeing Index 1 4 4 4 4 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5
Seeing Index 2 2 2 2 2 1 1 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4
Seeing arcSeconds 2.01 2.00 2.03 2.05 2.06 2.09 2.07 2.03 1.97 1.92 1.85 1.77 1.70 1.63 1.59 1.58 1.58 1.59 1.60 1.60 1.60 1.59
Jet stream (m/s) 6 6 6 6 6 5 5 4 4 4 4 3 3 3 4 4 5 4 4 5 5 4
2m Rel. Hum. (%) 85 88 90 91 91 90 90 89 88 89 90 91 91 85 85 88 91 93 96 96 96 96
Bad Layers Top (km) 3.2 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 4.4 4.4 1.6 1.5 1.5 1.5 1.5 1.5 1.5 1.5
Bad Layers Bot (km) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 2.6 2.6 2.6 2.6 2.6 3.8 3.8 0.6 0.6 0.6 0.6 0.6 0.6 0.2 0.2
Bad Layers K/100m 0.67 0.66 0.67 0.69 0.70 0.71 0.69 0.58 0.58 0.56 0.54 0.52 0.50 0.50 0.92 0.94 0.93 0.90 0.85 0.84 0.75 0.77
Fri 25.05.2012              06:41       21:35    meteoblue.com
Time (CEST)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 62 66 100 99 100 90 56 57
Mid Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22 56 95 94 64 24 51
Low Clouds (%) 48 58 59 45 44 31 34 30 11 0 0 0 0 0 0 3 7 10 9 40 40 40 40 40
Seeing Index 1 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
Seeing Index 2 4 4 4 4 4 4 3 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5
Seeing arcSeconds 1.58 1.56 1.53 1.52 1.52 1.53 1.53 1.53 1.52 1.48 1.43 1.36 1.27 1.20 1.13 1.07 1.01 1.07 1.06 1.05 1.05 1.01 0.92 0.99
Jet stream (m/s) 4 3 3 3 3 3 4 4 4 5 5 6 7 8 10 11 12 12 12 12 13 13 11 11
2m Rel. Hum. (%) 96 96 97 97 96 97 96 82 81 80 76 66 61 56 55 52 52 53 55 55 49 41 38 50
Bad Layers Top (km) 1.5 1.1 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 no no no no no no 0.5 0.5 no no 0.5
Bad Layers Bot (km) 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.6 0.6 no no no no no no 0.1 0.1 no no 0.1
Bad Layers K/100m 0.80 0.99 1.07 1.13 1.19 1.32 1.44 0.93 0.96 0.97 0.83 0.74 0.63 no no no no no no 0.52 0.56 no no 0.90
Sat 26.05.2012              06:41       21:36    meteoblue.com
Time (CEST)000102030405060708091011121314151617181920212223
High Clouds (%) 91 77 3 0 0 4 5 15 67 99 100 100 100 100 100 100 100 100 98 87 19 5 6 38
Mid Clouds (%) 88 76 11 0 0 0 0 0 0 0 58 74 15 0 0 0 0 0 0 0 0 0 0 0
Low Clouds (%) 41 46 53 61 46 58 67 66 78 93 90 100 100 100 100 99 95 97 96 98 100 96 67 44
Seeing Index 1 5 4 4 4 4 4 4 4 4 4 4 4 4 5 4 4 4 4 4 4 4 4 4 4
Seeing Index 2 4 3 3 3 3 3 2 3 3 2 3 2 3 3 2 2 3 3 3 3 3 3 3 2
Seeing arcSeconds 0.99 0.96 0.99 0.98 0.96 0.99 1.03 1.05 1.11 1.19 1.29 1.38 1.45 1.56 1.71 1.67 1.58 1.59 1.60 1.64 2.68 1.68 2.76 2.77
Jet stream (m/s) 10 10 11 11 12 13 14 15 15 16 17 17 17 17 17 17 17 18 18 18 19 19 20 20
2m Rel. Hum. (%) 100 97 97 96 96 92 88 88 85 87 90 92 93 92 91 89 86 87 87 85 86 89 91 93
Bad Layers Top (km) 1.0 1.5 1.5 1.5 1.5 2.0 4.3 4.3 4.3 4.3 4.3 4.3 3.7 3.7 3.7 3.7 3.7 3.7 3.7 3.7 3.7 3.7 3.7 4.3
Bad Layers Bot (km) 0.1 0.1 0.1 0.1 0.1 0.1 3.7 3.7 3.7 3.7 3.7 3.1 3.1 3.1 1.0 1.0 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1
Bad Layers K/100m 1.33 1.03 1.05 1.08 1.10 0.93 0.54 0.54 0.55 0.56 0.54 0.52 0.57 0.59 0.72 0.71 0.61 0.65 0.67 0.69 0.71 0.71 0.70 0.59


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