Limited 3 Days Seeing Prediction

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meteoblue.com forecastLacul Bucura (22.88°E / 45.35°N)     last update: 09.02  21:02 UTC
Thu 09.02.2012              07:42       17:42    meteoblue.com
Time (EET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 76 24 0 0 86 100 55 0 0
Mid Clouds (%) 0 100 100 100 100 100 100 100 100 100
Low Clouds (%) 0 3 88 100 100 100 100 100 100 100
Seeing Index 1 3 3 3 3 3 3 3 3 3 3
Seeing Index 2 1 1 1 1 1 1 1 1 1 1
Seeing arcSeconds 1.04 1.00 1.00 1.04 1.06 1.05 1.06 1.07 1.09 1.09
Jet stream (m/s) 11 11 11 12 13 12 12 11 11 11
2m Rel. Hum. (%) 53 72 87 96 97 97 97 96 96 96
Bad Layers Top (km) 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9
Bad Layers Bot (km) 8.8 8.8 7.8 7.8 7.8 7.8 7.8 7.8 7.7 7.7
Bad Layers K/100m 1.26 1.30 0.94 0.97 0.96 0.97 0.97 0.98 1.02 1.02
Fri 10.02.2012              07:41       17:44    meteoblue.com
Time (EET)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 0 0
Mid Clouds (%) 100 100 100 100 100 100 100 100 100 83 60 36 10 1 23 11 15 3 12 66 83 82 69 49
Low Clouds (%) 100 98 100 88 87 78 88 86 88 88 89 91 90 88 77 77 77 75 66 44 44 44 22 22
Seeing Index 1 3 3 3 3 3 3 3 2 3 3 3 2 2 2 3 3 3 3 3 3 3 3 3 3
Seeing Index 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Seeing arcSeconds 1.12 1.15 1.18 1.22 1.22 1.20 1.17 1.14 1.10 1.06 1.02 0.98 0.98 0.96 0.93 0.90 0.89 0.83 0.79 0.79 0.78 0.75 0.75 0.74
Jet stream (m/s) 11 12 12 13 13 13 13 13 13 13 13 14 14 14 15 15 15 16 15 15 16 16 17 17
2m Rel. Hum. (%) 96 93 87 80 76 72 71 70 67 68 72 75 74 71 70 70 69 62 60 62 63 59 57 58
Bad Layers Top (km) 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9
Bad Layers Bot (km) 7.7 7.7 7.7 7.7 7.7 7.7 7.7 6.9 6.9 7.7 6.9 6.9 6.9 6.9 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8
Bad Layers K/100m 1.00 0.99 0.98 0.99 0.99 1.00 1.02 0.86 0.85 1.02 0.85 0.87 0.89 0.90 1.07 1.06 1.04 1.02 1.00 0.97 0.95 0.94 0.93 0.91
Sat 11.02.2012              07:39       17:45    meteoblue.com
Time (EET)000102030405060708091011121314151617181920212223
High Clouds (%) 35 61 46 0 0 0 0 0 0 0 22 61 97 100 100 100 99 81 62 45 70 92 100 100
Mid Clouds (%) 63 56 78 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
Low Clouds (%) 33 33 33 42 44 74 88 91 94 99 100 100 100 100 100 100 100 100 100 100 100 100 93 95
Seeing Index 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 1 2 2 3 2 3 1
Seeing Index 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Seeing arcSeconds 0.73 0.71 0.68 0.64 0.59 0.55 0.56 0.58 0.58 0.54 0.54 0.54 0.54 0.53 0.53 0.55 0.55 0.55 0.56 0.56 0.56 0.56 0.57 0.57
Jet stream (m/s) 18 19 19 20 20 20 20 20 20 20 20 20 20 20 21 21 22 22 22 22 21 21 21 21
2m Rel. Hum. (%) 59 59 59 58 55 57 57 59 64 69 71 72 78 84 85 85 82 82 82 83 82 82 82 82
Bad Layers Top (km) 9.9 9.9 9.9 9.9 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0
Bad Layers Bot (km) 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.0 7.0 7.0 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 7.9
Bad Layers K/100m 0.89 0.87 0.87 0.87 0.86 0.86 0.85 0.83 0.80 0.77 0.68 0.67 0.65 0.87 0.85 0.84 0.86 0.89 0.91 0.94 0.99 1.02 1.00 0.74
Sun 12.02.2012              07:38       17:46    meteoblue.com
Time (EET)000102030405060708091011121314151617181920212223
High Clouds (%) 98 93 99 100 100 100 100 100 100 100 82 47 14 20 86 100 100 100 100 100 100 100 100 100
Mid Clouds (%) 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
Low Clouds (%) 99 100 100 100 100 100 100 100 100 99 93 93 100 100 100 100 100 100 100 100 100 100 100 100
Seeing Index 1 2 2 3 2 1 3 1 1 3 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3
Seeing Index 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Seeing arcSeconds 0.56 0.55 0.55 0.55 0.55 0.56 0.56 0.54 0.53 0.53 0.56 0.59 0.57 0.54 0.52 0.51 0.53 0.55 0.54 0.53 0.54 0.56 0.55 0.53
Jet stream (m/s) 21 21 21 20 20 19 18 17 16 16 16 17 18 19 20 20 20 19 18 17 15 14 14 14
2m Rel. Hum. (%) 82 86 87 87 86 87 88 88 89 88 87 88 90 91 91 91 93 93 95 96 96 94 93 94
Bad Layers Top (km) 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 9.9 9.9 9.9 9.9 9.9 9.9
Bad Layers Bot (km) 7.9 7.9 7.8 7.8 7.8 8.8 8.8 8.8 8.8 8.8 8.8 7.8 7.8 7.8 7.8 7.8 8.8 8.8 8.8 8.8 8.8 8.8 7.8 7.8
Bad Layers K/100m 0.76 0.79 0.83 0.84 0.84 1.21 1.23 1.25 1.29 1.30 1.27 0.90 0.91 0.92 0.92 0.91 1.38 1.36 1.32 1.30 1.29 1.26 0.89 0.90


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