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 | |
| 2021 January 21, Thursday | 05:30 | 23.7 75 | 748.2 29.46 997.52 997.52 | 758.3 29.85 1010.98 1010.98 | 98 | Calm, no wind | Calm | 40%. 4/10. 3 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 40%. 4/10. 3 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 23.4 74 | No precipitation No precipitation | 15 | ||||||||||||
| January 20, Wednesday | 20:30 | 25.2 77 | 748.5 29.47 997.92 997.92 | 757.8 29.83 1010.32 1010.32 | 1.5 0.06 2 2 | 97 | Calm, no wind | Calm | 40%. 4/10. 3 oktas | State of sky on the whole unchanged. | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 40%. 4/10. 3 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 24.7 76 | Trace of precipitation Trace of precipitation | 3 | ||||||||
17:30 | 28.0 82 | 747.0 29.41 995.92 995.92 | 756.9 29.8 1009.12 1009.12 | 0.8 0.03 1.07 1.07 | 87 | Wind blowing from the north-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | State of sky on the whole unchanged. | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 30.5 87 | Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | Altocumulus translucidus at a single level. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 20.0 12.4 | 25.7 78 | Trace of precipitation Trace of precipitation | 3 | ||||||||
14:30 | 29.5 85 | 746.2 29.38 994.85 994.85 | 756.1 29.77 1008.05 1008.05 | -2.4 -0.09 -3.2 -3.2 | 76 | Wind blowing from the east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 60%. 6/10. 5 oktas | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | Altocumulus translucidus at a single level. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 20.0 12.4 | 24.8 77 | No precipitation No precipitation | 3 | ||||||||||||
11:30 | 27.5 82 | 748.6 29.47 998.05 998.05 | 758.6 29.87 1011.38 1011.38 | -0.9 -0.04 -1.2 -1.2 | 81 | Wind blowing from the north-northeast | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 50%. 5/10. 4 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 fibratus, sometimes uncinus, not progressively invading the sky. | 20.0 12.4 | 23.9 75 | No precipitation No precipitation | 3 | ||||||||||||
08:30 | 24.8 77 | 749.5 29.51 999.25 999.25 | 759.6 29.91 1012.72 1012.72 | 1.3 0.05 1.73 1.73 | 90 | Wind blowing from the north-east | Light air (1 m/s) (4 km/h) (2 mph) (2 knots) (1 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | State of sky on the whole unchanged. | Shower(s). | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 22.6 73 | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 40%. 4/10. 3 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 | 0.4 0.02 | 3 | |||||||||
05:30 | 23.6 74 | 748.2 29.46 997.52 997.52 | 758.3 29.85 1010.98 1010.98 | 90 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Rain shower(s), slight. | Shower(s). | Rain. | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 40%. 4/10. 3 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 | 21.8 71 | 7.0 0.28 | 15 | |||||||||||