weather station number     , observations since January 31, 2005
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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
17
0.5
734.0
736.2
-1.7
95
Wind blowing from the northGentle breeze
(5 m/s)
  
100%.
Fog or ice fog, sky visible, no appreciable change during the preceding hour.Fog or ice fog or thick haze.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
100-200
  
0.5
-0.2
      
16
0.7
734.8
 
-1.5
95
Wind blowing from the northGentle breeze
(5 m/s)
  
100%.
Fog or ice fog, sky visible, has begun or has become thicker during the preceding hour.Fog or ice fog or thick haze.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
100-200
  
0.5
0.0
      
15
1.8
735.2
 
-2.3
89
Wind blowing from the west-northwestFresh breeze
(8 m/s)
  
100%.
Mist.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
200-300
  
3.0
0.2
      
14
2.2
735.7
737.9
-2.2
87
Wind blowing from the north-westModerate breeze
(6 m/s)
  
100%.
Mist.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
300-600
  
8.0
0.3
      
13
1.5
736.3
 
-2.2
91
Wind blowing from the north-westGentle breeze
(4 m/s)
  
100%.
Mist.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
200-300
  
5.0
0.1
      
12
1.4
737.5
 
-0.9
91
Wind blowing from the northGentle breeze
(5 m/s)
  
100%.
Mist.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
200-300
  
8.0
0.0
      
11
1.5
737.9
 
0.9
92
Wind blowing from the northLight breeze
(3 m/s)
  
100%.
Mist.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
200-300
  
8.0
0.4
      
10
0.7
738.5
 
0.7
93
Wind blowing from the north-eastGentle breeze
(5 m/s)
  
100%.
Mist.Cloud covering more than 1/2 of the sky throughout the appropriate period.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Stratus nebulosus or Stratus fractus other than of bad weather, or both.
100%.
200-300
  
8.0
-0.3
      
09
1.9
738.4
 
1.7
89
Wind blowing from the north-westModerate breeze
(6 m/s)
  
90 or more, but not 100%
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
10% or less, but not 0
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.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.
10.0
0.3
      
08
2.1
737.0
739.3
-0.8
80
Wind blowing from the westNear gale
(16 m/s)
22 m/s
 
90 or more, but not 100%
   
0.8
8.4
Stratus nebulosus or Stratus fractus other than of bad weather, or both.
10% or less, but not 0
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.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.
10.0
-1.0
      
07
3.1
737.8
739.9
 
78
Wind blowing from the westStrong breeze
(11 m/s)
21 m/s
 
90 or more, but not 100%
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
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.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.
10.0
-0.4
      
06
2.6
736.7
738.9
 
77
Wind blowing from the westNear gale
(16 m/s)
  
100%.
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
50%.
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.
10.0
-1.0
      
05
2.9
737.8
739.9
-0.1
74
Wind blowing from the westStrong breeze
(12 m/s)
  
100%.
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
50%.
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.
10.0
-1.3
      
02
4.9
737.9
740.2
 
65
variable wind directionGentle breeze
(4 m/s)
  
100%.
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
60%.
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.
10.0
-1.3
      
April 17,
Thursday
20
5.1
737.8
740.0
0.9
71
Wind blowing from the westGentle breeze
(4 m/s)
  
50%.
   
2.7
9.4
Stratus nebulosus or Stratus 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; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.
10.0
0.2
      
19
4.8
737.6
739.9
-1.1
69
Wind blowing from the north-westModerate breeze
(6 m/s)
  
50%.
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
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.
10.0
-0.5
      
18
5.1
737.9
740.1
0.4
68
Wind blowing from the westFresh breeze
(8 m/s)
  
50%.
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
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.
10.0
-0.4
      
17
6.6
736.9
739.1
1.7
61
Wind blowing from the westFresh breeze
(8 m/s)
  
60%.
     Stratus nebulosus or Stratus fractus other than of bad weather, or both.
20–30%.
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.
10.0
-0.4
      
0