Limited 3 Days Seeing Prediction

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meteoblue.com forecastPioz (3.17°W / 40.47°N)     last update: 13.02  09:01 UTC
Mon 13.02.2012              08:12       18:41    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0
Mid Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100 29 16 9 0 0
Low Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 22 44 0 0 3 0 0 21 40 55 55 83
Seeing Index 1 4 4 4 4 3 3 3 4 4 4 4 4 4 4 4 3 3 3 4 3 4 4 4
Seeing Index 2 2 2 2 2 1 1 1 2 2 2 2 3 2 3 2 1 1 1 2 1 2 2 3
Seeing arcSeconds 1.01 1.01 1.00 1.02 1.02 1.04 1.10 1.17 1.22 1.22 1.23 1.25 1.25 1.25 1.26 1.30 1.31 1.45 1.52 1.47 1.35 1.14 0.90
Jet stream (m/s) 12 14 15 16 18 20 24 27 29 27 26 24 23 21 21 20 19 21 22 22 22 23 24
2m Rel. Hum. (%) 59 71 72 72 75 75 76 76 76 71 68 65 63 58 54 53 56 62 70 76 79 82 83
Bad Layers Top (km) 10.1 10.1 10.1 10.1 10.2 10.2 10.2 10.2 10.2 10.2 10.2 5.5 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2
Bad Layers Bot (km) 9.0 9.0 9.0 9.0 8.0 8.0 8.0 9.0 9.0 9.0 9.0 3.6 9.1 9.1 9.1 9.1 9.1 9.1 9.1 9.0 9.0 9.0 9.1
Bad Layers K/100m 0.94 0.89 0.85 0.88 0.70 0.67 0.57 0.55 0.57 0.60 0.54 0.58 0.52 0.57 0.64 0.65 0.65 0.79 0.85 0.90 0.93 0.84 0.66
Tue 14.02.2012              08:11       18:42    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 0 0 0 0 0 0 2 25 12 7 0 0 0 0 0 0 0 0 0
Mid Clouds (%) 0 0 0 0 0 0 0 46 100 99 61 54 95 99 100 100 100 100 86 0 0 0 0 0
Low Clouds (%) 90 99 99 99 100 88 100 91 88 22 33 88 88 84 31 41 25 31 18 6 34 55 35 55
Seeing Index 1 4 4 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 5
Seeing Index 2 3 3 4 3 4 4 3 3 3 4 3 3 3 2 2 2 2 2 2 2 2 2 2 3
Seeing arcSeconds 0.80 0.82 0.90 0.94 1.02 1.13 1.22 1.24 1.31 1.32 1.21 1.15 1.16 1.21 1.18 1.19 1.35 1.43 1.61 1.56 1.47 1.43 1.42 1.43
Jet stream (m/s) 24 25 27 27 27 27 27 29 30 31 32 33 33 33 33 34 33 32 32 33 33 34 37 39
2m Rel. Hum. (%) 84 84 84 85 87 88 89 88 86 83 80 74 71 64 59 58 56 56 57 62 67 69 73 76
Bad Layers Top (km) 10.2 10.2 3.0 3.6 3.6 3.6 3.6 3.6 5.5 5.5 6.3 6.3 6.3 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 10.2 4.2
Bad Layers Bot (km) 9.1 9.1 1.5 1.5 2.0 2.0 2.0 2.0 4.8 4.8 4.8 3.6 3.6 9.1 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 2.5
Bad Layers K/100m 0.54 0.51 0.73 0.65 0.68 0.67 0.70 0.72 0.50 0.52 0.52 0.57 0.58 0.55 0.61 0.67 0.72 0.75 0.73 0.70 0.64 0.59 0.54 0.65
Wed 15.02.2012              08:09       18:43    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 0 0 1 5 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 0 0
Low Clouds (%) 33 44 44 44 44 44 33 37 43 27 0 0 0 0 0 0 0 0 0 6 21 21 21 21
Seeing Index 1 5 4 4 4 3 3 3 3 3 3 3 1 3 3 3 3 3 3 4 4 4 4 4 4
Seeing Index 2 4 3 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2
Seeing arcSeconds 1.41 1.36 1.32 1.31 1.33 1.33 1.33 1.34 1.34 1.32 1.32 1.36 1.40 1.44 1.48 1.48 1.53 1.73 1.78 1.66 1.61 1.50 1.44 1.34
Jet stream (m/s) 43 46 49 52 54 53 52 51 50 47 42 37 34 31 28 26 24 23 21 20 19 19 20 20
2m Rel. Hum. (%) 76 78 79 79 79 79 79 78 77 76 72 66 60 57 53 53 52 51 50 50 56 63 72 78
Bad Layers Top (km) 3.6 4.8 5.5 5.6 5.6 5.6 5.6 6.4 6.4 6.4 6.4 5.6 5.6 5.6 5.6 5.7 5.7 5.7 4.9 5.0 4.3 4.3 3.7 3.7
Bad Layers Bot (km) 2.5 4.2 4.2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.5 1.5 1.5
Bad Layers K/100m 0.73 0.52 0.55 0.61 0.63 0.64 0.66 0.66 0.68 0.69 0.70 0.74 0.73 0.70 0.71 0.73 0.74 0.74 0.79 0.79 0.86 0.81 0.91 0.91


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