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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 April 18, Friday | 09 | 11.7 | 743.8 | 762.8 | 44 | Wind blowing from the south | Light air (1 m/s) | 2 m/s | 3 m/s | 70 – 80%. | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 70 – 80%. | 600-1000 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 20.0 | -0.2 | ||||||||||||
06 | 4.6 | 744.2 | 763.7 | 64 | Wind blowing from the south-east | Light air (1 m/s) | 2 m/s | 2 m/s | 70 – 80%. | -0.2 | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 50%. | 600-1000 | Altocumulus translucidus at a single level. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 20.0 | -1.8 | No precipitation | 12 | Compact or wet snow (with or without ice) covering less than one-half of the ground. | Snow cover, not continuous. | ||||||||
| April 17, Thursday | 18 | 12.5 | 746.2 | 765.2 | 29 | Wind blowing from the north-northeast | Light air (1 m/s) | 4 m/s | 90 or more, but not 100% | 14.7 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. | 2500 or more, or no clouds. | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | 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 | -5.2 | No precipitation | 12 | ||||||||||
15 | 12.5 | 746.2 | 765.2 | 29 | Wind blowing from the north-northeast | Light air (1 m/s) | 4 m/s | 90 or more, but not 100% | 14.7 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 50%. | 2500 or more, or no clouds. | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | 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 | -5.2 | No precipitation | 12 | |||||||||||
12 | 12.1 | 747.7 | 766.8 | 30 | Wind blowing from the west | Light breeze (2 m/s) | 3 m/s | 5 m/s | 100%. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. | 2500 or more, or no clouds. | Altocumulus castellanus or floccus. | 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. | 20.0 | -5.0 | |||||||||||||
09 | 9.7 | 748.9 | 768.1 | 36 | Wind blowing from the west-southwest | Light breeze (2 m/s) | 4 m/s | 6 m/s | 100%. | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 40%. | 2500 or more, or no clouds. | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | Cirrocumulus alone, or Cirrocumulus accompanied by Cirrus or Cirrostratus or both, but Cirrocumulus is predominant. | 20.0 | -4.6 | |||||||||||||