Weather archive in Maha Illuppallama
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2020 July 11, Saturday | 11:30 | 29.4 85 | 746.1 29.37 994.72 994.72 | 756.0 29.76 1007.92 1007.92 | -0.4 -0.02 -0.53 -0.53 | 72 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 40%. 4/10. 3 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 20.0 12.4 | 23.9 75 | No precipitation No precipitation | 3 | |||||||||||
08:30 | 27.0 81 | 746.5 29.39 995.25 995.25 | 756.4 29.78 1008.45 1008.45 | 83 | Wind blowing from the south-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 oktas | 24.0 75 | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0 | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 20.0 12.4 | 23.8 75 | Trace of precipitation Trace of precipitation | 15 | ||||||||||||
| July 10, Friday | 17:30 | 26.8 80 | 745.4 29.35 993.79 993.79 | 755.4 29.74 1007.12 1007.12 | 0.4 0.02 0.53 0.53 | 80 | Wind blowing from the north-west | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 100%. 10/10. 8 oktas | Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation. | Thunderstorm(s) with or without precipitation. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 31.5 89 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 60%. 6/10. 5 oktas | 300-600 984-1968 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | 20.0 12.4 | 23.0 73 | Trace of precipitation Trace of precipitation | 3 | ||||||||
14:30 | 28.4 83 | 745.0 29.33 993.25 993.25 | 754.9 29.72 1006.45 1006.45 | -1.4 -0.06 -1.87 -1.87 | 82 | Wind blowing from the south | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Thunderstorm, but no precipitation at the time of observation. | Thunderstorm(s) with or without precipitation. | Shower(s). | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altocumulus cumulogenitus (or cumulonimbogenitus). | 20.0 12.4 | 25.1 77 | Trace of precipitation Trace of precipitation | 3 | ||||||||||
11:30 | 30.1 86 | 746.4 29.39 995.12 995.12 | 756.3 29.78 1008.32 1008.32 | 0.1 0 0.13 0.13 | 77 | Wind blowing from the south-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 50%. 5/10. 4 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered. | 20.0 12.4 | 25.6 78 | No precipitation No precipitation | 3 | ||||||||||||