Chiave

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Limited 3 Days Seeing Prediction

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meteoblue.com forecastChiave (12.14°E / 46.56°N)     last update: 09.02  21:02 UTC
Thu 09.02.2012              07:28       17:22    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 0 0 0 0 0 0
Mid Clouds (%) 0 100 100 100 89 41 22 78 77 100 100
Low Clouds (%) 0 44 13 11 33 22 30 37 43 33 37
Seeing Index 1 5 4 4 4 3 2 2 2 1 1 1
Seeing Index 2 4 2 3 2 1 1 1 1 1 1 1
Seeing arcSeconds 0.73 0.76 0.82 0.86 0.86 0.87 0.87 0.99 1.14 1.36 1.54
Jet stream (m/s) 24 23 24 26 27 26 25 24 23 22 22
2m Rel. Hum. (%) 70 75 71 65 75 71 72 73 69 67 66
Bad Layers Top (km) 10.1 10.0 10.0 10.0 10.0 10.0 10.0 9.9 9.9 9.9 9.9
Bad Layers Bot (km) 8.9 8.9 8.9 6.1 6.1 5.4 5.3 5.3 5.3 5.3 5.3
Bad Layers K/100m 0.60 0.74 0.79 0.64 0.69 0.71 0.78 0.86 0.93 0.99 1.00
Fri 10.02.2012              07:26       17:24    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 0 0 0 0 0
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 96
Low Clouds (%) 88 77 88 89 99 99 99 100 95 100 100 100 100 100 100 100 68 43 27 12 6 11 11 11
Seeing Index 1 1 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2
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 1.57 1.57 1.60 1.61 1.61 1.61 1.60 1.59 1.61 1.65 1.65 1.56 1.47 1.48 1.46 1.39 1.32 1.29 1.28 1.27 1.23 1.20 1.18 1.14
Jet stream (m/s) 22 21 20 19 18 17 15 14 12 11 9 8 7 7 7 7 7 6 5 4 3 3 3 2
2m Rel. Hum. (%) 62 60 60 60 63 64 69 70 71 72 74 75 75 74 75 73 73 73 75 72 73 71 69 70
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) 4.6 5.3 5.3 5.3 5.3 5.3 5.3 5.3 6.0 6.0 6.0 6.0 6.0 6.0 6.1 6.8 6.8 6.8 6.9 6.9 6.9 6.9 6.9 6.9
Bad Layers K/100m 0.92 1.00 1.02 1.02 1.03 1.04 1.04 1.03 1.20 1.22 1.20 1.17 1.14 1.10 1.07 1.25 1.25 1.25 1.25 1.25 1.23 1.21 1.18 1.17
Sat 11.02.2012              07:25       17:25    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 0 0 0 0 0
Mid Clouds (%) 34 28 4 0 0 26 100 89 83 19 70 89 88 77 16 48 94 100 98 69 12 18 60 65
Low Clouds (%) 11 11 17 11 8 11 0 22 0 6 11 77 100 100 100 100 100 100 100 100 100 100 100 98
Seeing Index 1 2 2 2 2 2 2 2 2 2 2 2 3 2 2 1 1 2 2 2 2 2 2 2 2
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 1.11 1.11 1.11 1.12 1.17 1.28 1.38 1.46 1.43 1.35 1.33 1.29 1.34 1.49 1.66 1.66 1.59 1.51 1.42 1.35 1.22 1.12 1.08 1.08
Jet stream (m/s) 2 2 1 1 1 1 2 2 3 3 3 3 3 3 2 2 3 3 4 5 6 6 6 7
2m Rel. Hum. (%) 69 68 68 67 70 67 66 66 66 68 67 71 78 78 79 79 81 81 80 81 80 80 78 77
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) 6.9 6.9 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 7.8 6.9 6.9 6.9 6.9 6.9 6.9
Bad Layers K/100m 1.14 1.12 1.42 1.41 1.39 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.38 1.39 1.37 1.34 1.31 1.31 1.03 1.04 1.03 1.02 1.02 1.02
Sun 12.02.2012              07:23       17:27    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 0 0 0 0 0
Mid Clouds (%) 11 21 33 61 100 33 11 11 32 33 44 57 85 95 0 0 0 0 30 92 100 100 100 100
Low Clouds (%) 77 75 86 98 90 87 79 35 24 11 11 7 22 33 0 0 0 0 0 0 0 0 10 11
Seeing Index 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 4 4 4 4 4 4 4 3 3 3
Seeing Index 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3 2 2 2 2 1 1 1
Seeing arcSeconds 1.09 1.08 1.09 1.06 1.01 0.97 0.94 0.91 0.88 0.84 0.80 0.74 0.74 0.75 0.76 0.77 0.79 0.79 0.79 0.80 0.79 0.79 0.79 0.80
Jet stream (m/s) 7 7 8 8 8 9 9 9 9 10 10 11 11 12 16 16 17 18 19 20 20 21 21 21
2m Rel. Hum. (%) 77 76 72 74 73 70 70 68 68 69 73 74 74 69 53 55 58 59 59 61 63 58 63 70
Bad Layers Top (km) 9.9 9.9 9.9 9.9 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
Bad Layers Bot (km) 6.9 6.1 5.4 5.4 6.1 6.1 6.1 6.1 6.1 6.1 6.1 6.1 6.1 6.1 7.8 7.8 7.8 7.8 7.8 8.8 8.8 8.8 8.8 8.8
Bad Layers K/100m 1.01 0.88 0.81 0.82 0.92 0.92 0.92 0.90 0.89 0.88 0.86 0.85 0.82 0.80 0.81 0.80 0.79 0.77 0.75 0.92 0.91 0.92 0.92 0.94


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