Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waxing Gibbous 78%

No Rise

No Set

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

76
92
61
67
47
80
79
97
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

66
69
43
45
45
63
44
59
61
50
71
74
80
73
77
83
79
80
92
82
76
65
63
58

Medium Clouds (% Sky Obscured)

29
75
14
0
7
4
18
79
95
100
100
100
100
100
100
99
100
100
100
100
100
92
100
100

High Clouds (% Sky Obscured)

4
14
5
38
19
46
48
65
84
90
86
80
80
81
91
100
100
99
97
94
70
88
95
82

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
1
0
4
1
4
0
0
0
0
4
9

Fog (%)

0
0
1
1
1
0
0
0
0
0
0
0
1
3
2
1
1
2
2
5
3
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

8
10
14
12
8
5
5
4
7
8
10
10
22
28
22
23
31
55
67
75
67
38
12
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.4
0
0
0

Wind Speed/Direction (mph)

9
9
9
10
10
10
10
9
9
9
9
8
6
6
6
7
8
9
9
9
9
9
9
10

Chance of Frost

Temperature (°C)

-14
-13
-13
-12
-12
-12
-12
-12
-11
-11
-11
-10
-10
-10
-10
-9
-9
-9
-8
-7
-6
-6
-6
-6

Feels Like (°C)

-19
-18
-18
-18
-17
-17
-16
-17
-16
-17
-16
-15
-14
-14
-13
-13
-14
-13
-13
-12
-11
-11
-11
-10

Dew Point (°C)

-18
-16
-16
-15
-14
-14
-14
-14
-13
-13
-13
-13
-13
-12
-11
-10
-10
-10
-9
-8
-7
-7
-7
-7

Relative Humidity (%)

74
78
79
79
83
85
85
85
85
83
83
81
81
85
90
90
87
88
88
92
92
92
90
90

Pressure (mb)

1019
1018
1018
1017
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015

Ozone (du)

469
467
465
463
460
458
458
459
460
460
458
455
453
450
447
446
446
448
450
454
454
452
449
446

Friday 19

Waxing Gibbous 85%

11:31

08:44

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: 11:31, Set: 08:44. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
98
99
99
98
97
98
94
98
98
95
94
94
99
100
100

Low Clouds (% Sky Obscured)

24
17
11
35
58
60
60
40
36
39
36
44
35
28
44
47
50
50
48
50
45
42
41
41

Medium Clouds (% Sky Obscured)

100
100
100
100
98
100
97
100
92
92
97
97
96
93
95
84
90
92
74
69
72
89
98
96

High Clouds (% Sky Obscured)

76
75
75
86
82
82
74
73
80
83
77
70
62
68
70
72
69
66
62
62
66
65
65
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
5
7
5
7
7
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
0
0
0
1

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
3
3
3
4
7
5
7
8
7
9
6
8
9
9
9
9
8
11
9
10
10
12
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
10
10
11
12
12
13
13
13
13
14
14
14
14
17
18
19
17
18
17
17
17
17

Chance of Frost

Temperature (°C)

-6
-7
-7
-7
-7
-7
-6
-6
-6
-7
-6
-6
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7

Feels Like (°C)

-11
-11
-12
-12
-12
-12
-11
-11
-11
-12
-11
-11
-11
-12
-11
-12
-12
-12
-12
-13
-13
-13
-13
-13

Dew Point (°C)

-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9
-9

Relative Humidity (%)

89
89
89
89
89
87
87
85
85
87
89
87
85
85
87
87
83
85
85
85
87
87
87
87

Pressure (mb)

1015
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

444
441
440
440
440
441
442
442
443
446
442
437
435
435
437
438
439
440
442
442
441
439
441
444

Saturday 20

Waxing Gibbous 91%

15:09

06:35

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: 15:09, Set: 06:35. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
97
100
100
99
97
83
89
73
79

Low Clouds (% Sky Obscured)

41
45
43
52
50
53
68
72
70
67
66
74
82
83
82
79
80
89
89
85
78
79
75
77

Medium Clouds (% Sky Obscured)

100
93
66
55
73
78
75
81
74
66
75
83
100
100
78
81
99
100
88
15
17
11
7
0

High Clouds (% Sky Obscured)

66
79
85
63
87
96
96
92
91
91
72
60
65
27
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
6
6
5
5
6
5
4
2
2
4
4
1
0
0
0
0
0
0
0
2
4
5
8

Fog (%)

1
1
0
1
1
1
2
2
2
3
3
3
2
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
None
None
Snow
None
None
None
None
None
None

Precipitation Probability (%)

13
16
14
13
17
23
16
16
26
27
25
40
61
70
60
44
40
38
34
30
22
17
19
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.2
0
0
0.1
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
14
13
13
12
12
11
11
10
10
9
8
7
6
7
7
6
4
4
5
6
7
7

Chance of Frost

Temperature (°C)

-7
-7
-7
-7
-7
-7
-7
-6
-6
-6
-6
-6
-6
-6
-6
-6
-7
-7
-7
-7
-7
-7
-8
-8

Feels Like (°C)

-13
-13
-12
-12
-12
-11
-12
-11
-11
-10
-10
-10
-10
-10
-9
-10
-10
-11
-10
-10
-11
-11
-12
-12

Dew Point (°C)

-9
-9
-8
-8
-8
-8
-9
-8
-8
-8
-8
-8
-7
-6
-7
-7
-8
-8
-8
-8
-8
-9
-9
-10

Relative Humidity (%)

87
87
89
89
89
87
87
89
89
89
89
87
90
94
94
90
92
90
92
92
92
88
87
83

Pressure (mb)

1019
1020
1020
1020
1020
1021
1021
1021
1021
1022
1022
1022
1023
1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027

Ozone (du)

447
449
451
452
455
458
462
467
468
470
469
469
471
472
473
474
474
472
469
468
469
468
469
470

Sunday 21

Waxing Gibbous 96%

17:54

04:12

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: 17:54, Set: 04:12. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

80
95
97
98
99
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

77
74
72
71
69
66
63
71
71
76
81
85
85
83
82
82
85
88
91
94
96
93
92
89

Medium Clouds (% Sky Obscured)

8
44
65
77
88
100
96
92
88
92
96
100
98
97
96
95
92
100
100
100
89
75
78
80

High Clouds (% Sky Obscured)

13
57
63
75
86
100
96
92
86
92
96
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
3
1
1
0
0
0
0
0
0
0
0
0

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

21
20
17
15
13
9
9
8
6
6
12
22
34
35
40
49
56
72
84
87
95
93
90
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.4
0.6
0.6
0.8
0.6
0.5
0.7

Wind Speed/Direction (mph)

7
7
7
7
7
7
7
7
7
7
8
8
9
9
9
10
10
11
12
12
13
12
11
11

Chance of Frost

Temperature (°C)

-8
-8
-7
-7
-7
-6
-6
-5
-5
-5
-5
-4
-4
-3
-3
-3
-3
-3
-4
-3
-3
-3
-2
-2

Feels Like (°C)

-12
-12
-12
-12
-11
-11
-11
-10
-10
-9
-9
-9
-8
-8
-8
-8
-8
-8
-9
-8
-8
-7
-7
-7

Dew Point (°C)

-10
-10
-10
-10
-9
-9
-10
-9
-9
-9
-9
-8
-6
-5
-5
-4
-4
-4
-4
-4
-4
-3
-3
-3

Relative Humidity (%)

83
82
82
82
82
80
76
76
73
73
73
76
84
89
89
91
92
92
94
94
94
94
92
94

Pressure (mb)

1027
1027
1027
1028
1027
1027
1027
1027
1026
1026
1025
1024
1023
1022
1021
1019
1018
1016
1014
1012
1010
1008
1007
1005

Ozone (du)

463
456
452
448
440
437
434
434
433
433
429
426
427
433
433
431
426
426
423
421
424
425
424
424

Monday 22

Waxing Gibbous 99%

20:55

02:41

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: 20:55, Set: 02:41. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
98
99
99
100
100
100
100
100
100
100
100
100
100
98
97
95

Low Clouds (% Sky Obscured)

89
88
87
84
82
80
82
85
87
87
85
90
93
96
100
95
90
86
86
87
88
88
88
89

Medium Clouds (% Sky Obscured)

84
82
85
85
86
83
80
94
94
97
98
100
93
82
69
89
94
100
100
100
100
98
95
95

High Clouds (% Sky Obscured)

100
100
100
100
100
100
85
73
65
75
75
65
60
60
75
45
55
60
70
75
75
73
72
61

ISS Passover

Visibility (miles)

0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

95
87
78
82
79
71
71
71
71
74
75
82
89
84
64
80
79
82
80
77
73
67
59
50

Precipitation Amount (mm)

0.7
0.5
0.4
0.4
0.4
0.3
0.3
0.3
0.4
0.4
0.4
0.5
0.6
0.5
0.2
0.4
0.4
0.5
0.5
0.4
0.4
0.3
0.2
0.1

Wind Speed/Direction (mph)

10
10
9
8
8
8
8
7
6
6
5
7
10
8
6
4
10
10
11
11
12
12
12
10

Chance of Frost

Temperature (°C)

-2
-1
-1
-1
-1
-1
-1
-1
0
1
-0
-0
-1
-1
-1
-1
-2
-3
-3
-3
-4
-4
-4
-4

Feels Like (°C)

-6
-5
-6
-5
-5
-4
-4
-4
-3
-2
-3
-3
-4
-4
-4
-4
-6
-6
-6
-5
-5
-4
-8
-8

Dew Point (°C)

-2
-2
-2
-2
-1
-1
-1
-1
-0
1
-1
-1
-1
-1
-1
-1
-3
-3
-3
-4
-5
-6
-6
-6

Relative Humidity (%)

94
94
94
94
96
98
98
98
98
100
96
98
98
100
98
98
96
98
98
94
91
89
87
85

Pressure (mb)

1003
1002
1001
1000
999
998
998
997
996
996
995
995
995
995
995
995
997
997
998
998
999
1000
1000
1000

Ozone (du)

425
427
427
427
427
428
431
432
435
440
443
446
449
451
453
457
458
460
462
461
460
459
457
455

Tuesday 23

Waxing Gibbous 100%

No Rise

No Set

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:54. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

91
87
83
90
95
100
98
96
94
94
92
92
87
84
82
81
83
81
78
70
59
61
68
78

Low Clouds (% Sky Obscured)

85
82
79
75
72
68
69
71
73
70
67
64
55
47
38
34
28
23
24
25
26
38
50
63

Medium Clouds (% Sky Obscured)

91
88
75
73
83
100
85
69
54
47
40
33
23
16
10
5
10
15
14
18
27
36
42
43

High Clouds (% Sky Obscured)

52
28
24
19
10
5
5
5
5
4
4
4
3
2
4
5
7
8
15
19
25
20
19
14

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

54
52
53
46
38
27
25
21
17
18
17
16
15
12
7
8
7
4
5
6
5
5
5
3

Precipitation Amount (mm)

0.2
0.2
0.2
0.2
0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
11
13
13
14
16
14
14
13
13
13
13
13
12
12
11
10
9
8
8
8
7
7

Chance of Frost

Temperature (°C)

-5
-5
-6
-7
-8
-9
-9
-9
-10
-10
-10
-10
-10
-10
-10
-11
-11
-11
-12
-12
-12
-12
-12
-11

Feels Like (°C)

-8
-9
-10
-11
-13
-14
-14
-14
-15
-15
-15
-15
-15
-14
-14
-14
-16
-16
-15
-16
-15
-15
-17
-15

Dew Point (°C)

-7
-7
-8
-9
-10
-11
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-13
-14
-14
-14
-14
-14
-14
-13

Relative Humidity (%)

85
85
85
87
83
80
77
77
77
75
75
77
77
80
80
81
83
83
85
85
85
84
85
83

Pressure (mb)

1001
1002
1003
1004
1005
1005
1006
1007
1008
1009
1010
1011
1011
1012
1013
1013
1014
1015
1015
1016
1016
1017
1017
1017

Ozone (du)

453
453
453
453
455
456
458
456
454
452
452
453
453
453
453
453
451
448
445
445
445
446
448
449

Wednesday 24

Full Moon 99%

No Rise

No Set

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: N/A, Set: N/A, Transit: 12:53. Moon - Rise: No Rise, Set: No Set. Civil Dark: N/A - N/A. Nautical Dark: N/A - N/A. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

79
80
82
80
76
70
65
58
49
52
55
58
60
61
63
64
65
66
70
75
79

Low Clouds (% Sky Obscured)

61
59
57
55
52
50
53
57
57
54
48
38
35
36
39
39
41
47
55
63
72

Medium Clouds (% Sky Obscured)

34
25
20
9
7
6
5
3
2
2
3
5
4
4
7
31
57
84
76
68
61

High Clouds (% Sky Obscured)

17
19
16
9
4
1
1
1
1
1
1
1
1
2
5
5
6
3
7
9
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
8
9
9
8
4
5
5
4
5
4
2
4
4
3
3
2
0
3
3
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
6
5
5
6
6
6
5
5
5
5
5
5
5
4
4
4

Chance of Frost

Temperature (°C)

-11
-10
-10
-10
-10
-10
-9
-9
-9
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-9
-9

Feels Like (°C)

-16
-15
-15
-15
-15
-14
-14
-14
-14
-13
-11
-11
-11
-11
-11
-11
-11
-11
-11
-11
-11

Dew Point (°C)

-13
-13
-13
-13
-13
-13
-13
-12
-12
-12
-11
-11
-11
-11
-11
-11
-11
-11
-11
-11
-11

Relative Humidity (%)

81
81
81
80
78
77
75
77
75
75
75
77
79
79
80
80
82
82
82
82
83

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015

Ozone (du)

451
450
449
448
447
447
446
448
450
452
453
455
456
457
457
457
457
457
457
459
460

Forecast for Longyearbyen, Spitsbergen, Svalbard and Jan Mayen (78.15,16.04)

Generated: 18/04/24 05:50:41. Forecast: 18/04/24 to 24/04/24. Timezone: UTC+2.00