weather station number     , observations since February 13, 2009
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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
May 20,
Tuesday
08
31.6
756.8
757.9
0.0
68
Wind blowing from the north-northeastLight air
(1 m/s)
  
10% or less, but not 0
Haze.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.
26.9
 Cumulus humilis or Cumulus fractus other than of bad weather, or both.
10% or less, but not 0
300-600
No Altocumulus, Altostratus or Nimbostratus.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.
15.0
25.0
      
05
27.4
756.8
757.9
0.7
86
Calm, no windCalm  
40%.
     Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.
10% or less, but not 0
300-600
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.
15.0
24.9
      
02
28.3
756.1
757.2
-1.0
82
Wind blowing from the north-eastLight air
(1 m/s)
  
90 or more, but not 100%
Lightning visible, no thunder heard.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.  Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.
20–30%.
300-600
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.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
25.0
      
May 19,
Monday
23
28.4
757.1
758.2
1.2
83
Wind blowing from the northLight air
(1 m/s)
  
50%.
Clouds generally dissolving or becoming less developed.Thunderstorm(s) with or without precipitation.Cloud covering 1/2 or less of the sky throughout the appropriate period.  Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.
10% or less, but not 0
300-600
No Altocumulus, Altostratus or Nimbostratus.Cirrostratus not progressively invading the sky and not entirely covering it.
15.0
25.2
      
20
30.1
755.9
757.0
1.3
82
Wind blowing from the northLight air
(1 m/s)
  
90 or more, but not 100%
Thunderstorm, but no precipitation at the time of observation.Thunderstorm(s) with or without precipitation.Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. 
33.0
Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.
40%.
300-600
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.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
26.6
      
17
31.4
754.6
755.7
-0.4
77
Wind blowing from the west-northwestLight breeze
(2 m/s)
  
20–30%.
Haze.Cloud covering 1/2 or less of the sky throughout the appropriate period.Cloud covering 1/2 or less of the sky throughout the appropriate period.  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%.
300-600
No Altocumulus, Altostratus or Nimbostratus.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
26.8
      
14
32.6
755.0
756.1
-1.5
69
Wind blowing from the west-southwestGentle breeze
(4 m/s)
  
10% or less, but not 0
Haze.Cloud covering 1/2 or less of the sky throughout the appropriate period.Cloud covering 1/2 or less of the sky throughout the appropriate period.  Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.
10% or less, but not 0
300-600
No Altocumulus, Altostratus or Nimbostratus.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
26.2
      
11
32.0
756.5
757.6
-0.2
71
Wind blowing from the westGentle breeze
(4 m/s)
  
40%.
Haze.Cloud covering 1/2 or less of the sky throughout the appropriate period.Cloud covering 1/2 or less of the sky throughout the appropriate period.  Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.
10% or less, but not 0
300-600
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.
15.0
26.2
      
08
30.6
756.7
757.8
0.4
70
Calm, no windCalm  
10% or less, but not 0
Haze.Cloud covering 1/2 or less of the sky throughout the appropriate period.Cloud covering 1/2 or less of the sky throughout the appropriate period.
25.8
 Cumulus humilis or Cumulus fractus other than of bad weather, or both.
10% or less, but not 0
300-600
No Altocumulus, Altostratus or Nimbostratus.No Cirrus, Cirrocumulus or Cirrostratus.
15.0
24.5
      
0