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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 | |
2025 August 18, Monday | 21 | 26.6 | 753.6 | 754.1 | 0.8 | 97 | Wind blowing from the south-west | Light breeze (2 m/s) | 70 – 80%. | Clouds generally dissolving or becoming less developed. | Thunderstorm(s) with or without precipitation. | Rain. | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 50%. | 200-300 | Altostratus translucidus. | No Cirrus, Cirrocumulus or Cirrostratus. | 4.0 | 26.0 | ||||||||||
18 | 27.0 | 752.8 | 753.3 | 0.7 | 94 | Wind blowing from the south-west | Light breeze (2 m/s) | 100%. | Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation. | Thunderstorm(s) with or without precipitation. | Rain. | 35.5 | Stratus fractus or Cumulus fractus of bad weather, or both (pannus), usually below Altostratus or Nimbostratus. | 70 – 80%. | 200-300 | Altostratus opacus or Nimbostratus. | 4.0 | 26.0 | 44.0 | 24 | |||||||||
15 | 35.0 | 752.1 | 752.6 | -1.8 | 63 | Wind blowing from the south-west | Light breeze (2 m/s) | 40%. | Stratocumulus cumulogenitus. | 50%. | 300-600 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 8.0 | 27.0 | ||||||||||||||
12 | 34.3 | 753.9 | 754.4 | -1.3 | 62 | Wind blowing from the south-southwest | Light breeze (2 m/s) | 40%. | Stratocumulus cumulogenitus. | 40%. | 300-600 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 8.0 | 26.0 | ||||||||||||||
09 | 28.4 | 755.2 | 755.8 | 0.8 | 92 | Wind blowing from the south-west | Light breeze (2 m/s) | 40%. | 26.5 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | no clouds | 2500 or more, or no clouds. | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 7.0 | 27.0 | |||||||||||||
06 | 27.1 | 754.4 | 754.9 | 94 | Wind blowing from the east | Light air (1 m/s) | 70 – 80%. | Clouds generally dissolving or becoming less developed. | Rain. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus. | 40%. | 300-600 | Altocumulus translucidus at a single level. | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon. | 6.0 | 26.0 | 0.2 | 1 | ||||||||||
00 | 28.3 | 754.0 | 754.5 | 0.6 | 87 | Wind blowing from the south-southwest | Light air (1 m/s) | 100%. | Precipitation within sight, not reaching the ground or the surface of the sea. | Thunderstorm(s) with or without precipitation. | Rain. | Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus. | 50%. | 300-600 | Altostratus opacus or Nimbostratus. | 6.0 | 26.0 | 3.0 | 2 | ||||||||||
August 17, Sunday | 21 | 27.5 | 753.4 | 753.9 | 2.8 | 97 | Calm, no wind | Calm | 70 – 80%. | State of sky on the whole unchanged. | Thunderstorm(s) with or without precipitation. | Rain. | Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus. | 50%. | 300-600 | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 6.0 | 27.0 |