weather station number     , observations since February 1, 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
12
18.1
740.5
761.5
-0.3
46
Wind blowing from the south-southwestCalm  
100%.
State of sky on the whole unchanged.Thunderstorm(s) with or without precipitation.Shower(s).  Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.
60%.
600-1000
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
6.1
      
11
16.9
740.5
761.7
0.0
51
Wind blowing from the north-northwestLight air
(1 m/s)
  
100%.
Shower(s) of rain.Shower(s).Cloud covering more than 1/2 of the sky throughout the appropriate period.  Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.
60%.
600-1000
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
6.5
      
10
14.8
740.6
761.8
0.3
70
Wind blowing from the south-southeastLight air
(1 m/s)
  
100%.
Thunderstorm (with or without precipitation).Thunderstorm(s) with or without precipitation.Cloud covering more than 1/2 of the sky throughout the appropriate period.  Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.
50%.
600-1000
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
9.4
      
09
13.3
740.8
762.1
0.3
78
Wind blowing from the south-southwestLight air
(1 m/s)
  
100%.
Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation.Shower(s).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.
12.0
20.1
Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.
60%.
600-1000
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
9.5
Trace of precipitation
12
Dry (without cracks, no appreciable amount of dust or loose sand)   
08
12.5
740.5
761.9
-0.2
74
Wind blowing from the north-eastLight air
(1 m/s)
  
90 or more, but not 100%
No significant weather observed.No significant weather observed.   Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.
50%.
600-1000
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.
20.0
8.0
      
07
12.5
740.3
761.8
-0.9
79
Wind blowing from the north-westLight air
(1 m/s)
  
70 – 80%.
No significant weather observed.No significant weather observed.   Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus.
50%.
600-1000
Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
9.0
      
06
12.2
740.5
761.8
-1.2
80
Wind blowing from the northLight breeze
(3 m/s)
  
50%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
40%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
8.9
      
05
12.9
740.7
762.1
-1.6
77
Wind blowing from the northLight breeze
(3 m/s)
  
10% or less, but not 0
No significant weather observed.No significant weather observed.   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.
20.0
9.0
      
04
12.7
741.2
762.6
-1.4
79
Wind blowing from the northLight breeze
(2 m/s)
  
10% or less, but not 0
No significant weather observed.No significant weather observed.   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.
20.0
9.1
      
03
13.1
741.7
763.1
-1.1
77
Wind blowing from the northLight breeze
(3 m/s)
  
10% or less, but not 0
No significant weather observed.No significant weather observed.   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.
20.0
9.2
No precipitation
6
    
02
14.0
742.3
763.6
-0.8
74
Wind blowing from the northLight breeze
(2 m/s)
  
no clouds
No significant weather observed.No significant weather observed.        
20.0
9.4
      
01
15.5
742.6
763.9
-0.7
67
Wind blowing from the north-northwestLight air
(1 m/s)
  
no clouds
No significant weather observed.No significant weather observed.        
20.0
9.4
      
00
16.5
742.8
763.9
-0.3
63
Wind blowing from the northLight breeze
(2 m/s)
  
no clouds
No significant weather observed.No significant weather observed.        
20.0
9.3
      
April 17,
Thursday
23
19.0
743.1
764.1
0.2
51
Wind blowing from the north-eastLight breeze
(2 m/s)
  
10% or less, but not 0
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
10% or less, but not 0
2500 or more, or no clouds.
Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
8.6
      
22
19.6
743.3
764.2
0.4
50
Wind blowing from the east-northeastLight breeze
(3 m/s)
  
40%.
No significant weather observed.No significant weather observed.   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.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
8.7
      
21
20.2
743.1
764.0
0.0
49
Wind blowing from the eastLight breeze
(2 m/s)
  
100%.
No significant weather observed.No significant weather observed. 
15.8
26.7
No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
50%.
2500 or more, or no clouds.
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.Cirrostratus covering the whole sky.
20.0
9.0
No precipitation
12
Dry (without cracks, no appreciable amount of dust or loose sand)   
20
21.6
742.9
763.7
-0.5
45
Wind blowing from the east-southeastLight breeze
(3 m/s)
  
100%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
40%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.Cirrostratus covering the whole sky.
20.0
9.0
      
19
23.7
742.9
763.6
-0.8
37
Wind blowing from the east-southeastLight breeze
(3 m/s)
  
100%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
20–30%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.Cirrostratus covering the whole sky.
20.0
8.3
      
18
25.1
743.1
763.6
-1.1
33
Wind blowing from the south-eastLight breeze
(3 m/s)
  
100%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
20–30%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.Cirrostratus covering the whole sky.
20.0
7.7
      
17
25.8
743.4
763.9
-1.3
32
Wind blowing from the east-southeastGentle breeze
(4 m/s)
  
60%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
no clouds
2500 or more, or no clouds.
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.
20.0
7.7
      
16
26.2
743.7
764.2
-1.6
33
Wind blowing from the east-southeastGentle breeze
(4 m/s)
  
50%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
40%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
8.6
      
15
26.5
744.2
764.7
-1.4
31
Wind blowing from the east-southeastLight breeze
(3 m/s)
  
20–30%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
20–30%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.No Cirrus, Cirrocumulus or Cirrostratus.
20.0
7.9
No precipitation
6
    
14
25.2
744.7
765.4
-1.2
35
Wind blowing from the south-southwestLight breeze
(2 m/s)
  
40%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
10% or less, but not 0
2500 or more, or no clouds.
Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
8.5
      
13
23.0
745.3
766.1
-0.6
40
Wind blowing from the southLight breeze
(2 m/s)
  
50%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
10% or less, but not 0
2500 or more, or no clouds.
Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
8.8
      
12
20.3
745.6
766.6
0.4
52
Wind blowing from the southLight breeze
(3 m/s)
  
60%.
No significant weather observed.No significant weather observed.   No Stratocumulus, Stratus, Cumulus or Cumulonimbus.
20–30%.
2500 or more, or no clouds.
Altocumulus translucidus at a single level.Cirrus fibratus, sometimes uncinus, not progressively invading the sky.
20.0
10.2
      
0