Le Havre

< Haute-Normandie   France
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Limited 3 Days Seeing Prediction

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meteoblue.com forecastLe Havre (0.13°E / 49.50°N)     last update: 13.02  20:59 UTC
Mon 13.02.2012              08:16       18:10    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 98 100 99 100 92 76 3 0 0 0
Mid Clouds (%) 0 100 100 100 0 0 0 0 0 0 0
Low Clouds (%) 0 42 18 22 100 100 100 100 97 96 99
Seeing Index 1 4 5 4 5 4 4 5 5 5 5 4
Seeing Index 2 2 4 3 4 3 3 4 4 4 3 3
Seeing arcSeconds 1.28 1.33 1.42 1.72 1.97 1.99 1.97 2.00 1.73 1.69 1.76
Jet stream (m/s) 36 37 38 40 41 41 41 42 43 45 47
2m Rel. Hum. (%) 78 74 74 75 76 83 91 92 93 93 93
Bad Layers Top (km) 10.2 4.2 4.2 3.6 4.2 4.2 4.2 4.2 3.6 4.2 4.8
Bad Layers Bot (km) 9.0 3.6 1.5 2.0 1.5 2.0 2.5 2.5 2.0 2.0 2.0
Bad Layers K/100m 0.61 0.55 0.65 0.74 0.63 0.64 0.66 0.64 0.62 0.57 0.57
Tue 14.02.2012              08:15       18:12    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 0 0 0 0 0 48 65 0 0 0 0 0 0 12 7 1 13 8 0 0 8 45 99 100
Mid Clouds (%) 0 0 1 34 49 47 0 0 0 0 0 0 0 9 0 0 0 57 97 81 81 99 100 0
Low Clouds (%) 93 84 96 94 96 98 93 74 85 93 66 48 47 78 69 34 100 100 100 66 50 0 7 18
Seeing Index 1 4 4 4 4 4 4 4 4 4 4 4 3 4 4 4 4 4 4 4 4 3 3 3 3
Seeing Index 2 2 2 2 2 2 2 2 3 3 2 2 1 2 2 2 2 2 2 2 2 1 1 1 1
Seeing arcSeconds 1.82 1.83 1.83 1.90 1.92 1.94 1.90 1.88 1.86 1.84 1.90 2.00 2.18 2.31 2.38 2.38 2.40 2.45 2.49 2.49 2.47 2.41 2.21 2.20
Jet stream (m/s) 48 49 50 50 51 52 53 54 55 55 55 55 56 57 57 55 54 55 56 56 54 53 51 49
2m Rel. Hum. (%) 94 94 93 93 93 93 93 93 93 93 93 93 93 93 93 93 94 94 91 90 90 90 93 88
Bad Layers Top (km) 6.3 6.3 6.3 6.3 6.3 6.3 6.3 5.5 5.5 5.5 5.5 5.5 4.8 4.8 4.8 4.8 4.9 4.9 4.9 4.9 4.9 4.9 5.6 4.9
Bad Layers Bot (km) 2.0 2.0 2.0 4.2 4.2 4.2 4.2 3.5 3.6 2.0 2.0 1.5 1.5 1.5 1.5 1.5 2.0 2.0 1.5 1.5 1.1 1.1 1.1 1.1
Bad Layers K/100m 0.56 0.56 0.57 0.54 0.55 0.57 0.60 0.62 0.65 0.61 0.62 0.62 0.68 0.70 0.71 0.71 0.77 0.78 0.72 0.72 0.68 0.69 0.67 0.71
Wed 15.02.2012              08:13       18:14    meteoblue.com
Time (CET)000102030405060708091011121314151617181920212223
High Clouds (%) 100 100 51 0 0 0 0 0 4 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 (%) 10 13 100 100 100 100 100 96 96 94 100 100 100 99 80 64 26 0 0 0 21 0 0 2
Seeing Index 1 4 4 3 3 3 3 3 3 4 4 4 4 4 4 4 5 4 4 3 3 4 4 4 4
Seeing Index 2 2 2 1 1 1 1 1 1 2 2 2 2 2 3 3 3 2 2 1 1 2 2 2 2
Seeing arcSeconds 2.24 2.28 2.29 2.24 2.20 2.14 2.09 2.11 2.12 2.11 2.11 2.10 2.10 2.07 1.96 1.86 1.78 1.73 1.69 1.63 1.74 2.11 2.15 2.23
Jet stream (m/s) 47 44 40 37 33 29 26 24 24 26 28 31 34 36 38 37 35 32 28 23 19 17 16 14
2m Rel. Hum. (%) 86 89 94 95 95 95 96 96 95 95 96 96 96 96 95 95 92 90 86 84 85 87 90 92
Bad Layers Top (km) 4.2 4.2 4.9 4.9 4.9 5.6 5.6 5.6 5.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 10.3 10.3 10.3 10.3 10.3 10.3 10.4 10.4
Bad Layers Bot (km) 1.1 1.1 1.5 1.5 1.5 1.5 1.5 4.2 4.9 1.5 1.5 1.5 1.5 2.0 2.0 2.0 8.1 7.2 7.2 7.2 8.1 8.1 8.1 8.1
Bad Layers K/100m 0.76 0.75 0.76 0.77 0.78 0.73 0.73 0.52 0.51 0.87 0.85 0.82 0.79 0.83 0.76 0.69 0.53 0.54 0.56 0.56 0.59 0.61 0.60 0.55
Thu 16.02.2012              08:11       18:15    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 (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 100 100 77 12 0 0
Low Clouds (%) 19 27 48 99 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100
Seeing Index 1 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4
Seeing Index 2 3 3 2 2 2 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3
Seeing arcSeconds 2.31 2.37 2.39 2.38 2.39 2.41 2.43 2.45 2.44 2.41 2.38 2.38 2.35 2.28 2.03 1.86 1.78 1.72 1.69 1.64 1.54 1.48 1.50 1.54
Jet stream (m/s) 14 14 14 15 15 14 13 13 14 14 14 14 15 17 26 26 26 27 28 29 30 31 32 33
2m Rel. Hum. (%) 94 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96 96
Bad Layers Top (km) 4.2 4.2 6.4 6.4 6.4 6.4 6.4 6.4 7.2 7.2 7.3 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 2.0 2.0
Bad Layers Bot (km) 2.5 2.5 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.3 4.3 4.9 4.9 4.9 4.9 5.6 5.6 5.6 5.6 0.2 0.2
Bad Layers K/100m 0.59 0.58 0.51 0.52 0.55 0.59 0.62 0.63 0.59 0.58 0.56 0.57 0.54 0.56 0.60 0.60 0.59 0.56 0.62 0.59 0.56 0.52 0.84 0.82


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