Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waxing Gibbous 60%

12:26

03:40

02 Bad
03 Bad
04 Bad
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: 06:01, Set: 20:42, Transit: 13:21. Moon - Rise: 12:26, Set: 03:40. Civil Dark: 21:22 - 05:20. Nautical Dark: 22:15 - 04:28. Astro Dark: 23:21 - 03:22

Total Clouds (% Sky Obscured)

52
56
63
74
75
52
94
95
98
99
100
100
100
100
100
100
100
95
89
72
83
84
98
99

Low Clouds (% Sky Obscured)

52
56
63
74
75
47
30
77
85
67
100
78
100
99
95
100
100
28
71
16
6
12
28
48

Medium Clouds (% Sky Obscured)

2
0
0
0
3
0
0
4
43
81
99
94
100
76
83
77
50
18
32
0
0
2
4
86

High Clouds (% Sky Obscured)

0
0
0
0
0
9
91
81
84
97
97
98
93
97
97
97
91
93
73
67
82
81
98
98

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

5
5
6
5
5
4
0
0
0
10
29
41
39
30
24
18
14
12
10
8
6
4
0
0

Precipitation Amount (mm)

0.01
0.08
0.09
0.02
0.01
0.01
0
0
0
0.05
0.25
0.46
0.42
0.28
0.19
0.16
0.14
0.12
0.08
0.04
0.02
0.01
0
0

Wind Speed/Direction (mph)

12
12
13
13
13
13
13
13
14
13
13
13
14
15
16
16
16
15
14
12
11
10
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
5
4
4
4
5
5
6
6
6
6
6
6
7
11
12
13
12
11
7
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

88
88
89
90
91
90
88
85
84
86
88
90
92
95
97
92
87
83
81
81
83
85
86
86

Pressure (mb)

1008
1009
1009
1009
1010
1011
1011
1011
1011
1010
1010
1010
1009
1008
1007
1007
1007
1007
1008
1009
1009
1009
1010
1010

Ozone (du)

369
372
373
374
373
371
367
362
357
353
348
344
342
340
339
338
338
338
337
335
333
333
334
335

Tuesday 24

Waxing Gibbous 71%

13:43

04:16

02 Bad
03 Bad
04 Bad
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 OK
00 OK
01 OK

Sun - Rise: 05:58, Set: 20:44, Transit: 13:21. Moon - Rise: 13:43, Set: 04:16. Civil Dark: 21:25 - 05:18. Nautical Dark: 22:18 - 04:25. Astro Dark: 23:26 - 03:17

Total Clouds (% Sky Obscured)

98
99
100
100
79
95
100
100
100
100
100
98
99
98
100
66
54
95
96
94
49
37
21
20

Low Clouds (% Sky Obscured)

73
81
94
27
21
37
16
40
21
20
20
39
53
63
91
45
41
40
4
13
38
28
17
19

Medium Clouds (% Sky Obscured)

93
70
98
99
26
92
91
99
100
92
94
95
99
97
100
59
33
94
96
92
27
18
9
11

High Clouds (% Sky Obscured)

96
95
99
99
71
67
100
34
58
100
100
89
88
4
0
2
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

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

Precipitation Type

None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

4
9
13
11
8
7
7
10
13
13
13
14
15
17
18
17
17
17
15
11
8
6
5
5

Precipitation Amount (mm)

0.01
0.03
0.05
0.03
0.02
0.02
0.02
0.05
0.09
0.12
0.16
0.21
0.26
0.36
0.42
0.36
0.3
0.27
0.17
0.07
0.03
0.02
0.01
0.01

Wind Speed/Direction (mph)

9
10
11
12
12
12
13
14
14
15
14
14
14
13
12
11
10
11
9
8
8
8
9
10

Chance of Frost

Temperature (°C)

8
8
8
7
6
6
6
7
8
9
10
11
12
12
12
11
11
11
10
9
8
7
7
6

Feels Like (°C)

6
5
5
4
3
2
3
4
5
6
10
11
12
12
12
11
11
11
10
7
6
5
4
3

Dew Point (°C)

6
6
6
6
6
5
6
6
6
6
7
6
6
6
6
6
6
6
5
5
4
4
4
4

Relative Humidity (%)

87
89
91
94
96
96
94
91
87
83
78
73
70
68
68
70
71
72
73
74
76
79
81
83

Pressure (mb)

1010
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011

Ozone (du)

336
338
340
343
346
348
350
352
353
354
355
356
358
361
363
364
365
366
366
367
367
368
369
370

Wednesday 25

Waxing Gibbous 81%

15:02

04:45

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

Sun - Rise: 05:56, Set: 20:46, Transit: 13:21. Moon - Rise: 15:02, Set: 04:45. Civil Dark: 21:27 - 05:15. Nautical Dark: 22:20 - 04:22. Astro Dark: 23:30 - 03:12

Total Clouds (% Sky Obscured)

16
13
9
8
9
10
24
71
31
38
32
95
58
53
81
88
37
27
27
27
27
27
27
45

Low Clouds (% Sky Obscured)

16
12
9
8
9
10
23
71
22
19
16
29
48
29
47
30
27
23
23
23
23
23
23
36

Medium Clouds (% Sky Obscured)

6
6
3
1
1
0
5
4
22
32
25
95
44
42
71
86
26
16
16
16
16
16
16
13

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
0
0
7
10
2
6
20
2
0
0
0
0
0
0
0
13

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

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

Precipitation Type

None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
6
14
22
25
20
9
0
14
25
32
35
37
37
32
22
15
12
9
0
0
0
0

Precipitation Amount (mm)

0
0
0.01
0.06
0.19
0.28
0.16
0.02
0
0.06
0.32
0.64
0.83
1.01
1.03
0.62
0.2
0.07
0.04
0.01
0
0
0
0

Wind Speed/Direction (mph)

11
11
12
12
13
14
14
15
15
16
16
16
16
15
15
14
13
13
12
12
12
13
13
14

Chance of Frost

Temperature (°C)

6
6
5
5
6
6
7
8
8
9
10
10
11
10
10
9
9
9
8
7
7
6
6
7

Feels Like (°C)

3
2
2
2
2
2
3
4
5
6
6
10
11
10
7
7
6
6
5
4
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

86
89
91
93
93
93
90
86
84
82
79
77
75
75
76
78
79
79
80
81
84
84
84
82

Pressure (mb)

1011
1010
1010
1010
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008

Ozone (du)

372
373
375
378
380
383
385
388
389
389
388
388
388
390
391
391
391
391
390
389
388
388
389
390

Thursday 26

Waxing Gibbous 89%

16:20

05:09

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

Sun - Rise: 05:54, Set: 20:48, Transit: 13:21. Moon - Rise: 16:20, Set: 05:09. Civil Dark: 21:29 - 05:13. Nautical Dark: 22:23 - 04:19. Astro Dark: 23:34 - 03:08

Total Clouds (% Sky Obscured)

45
45
45
45
45
31
31
31
31
31
31
32
32
32
32
32
32
38
38
38
38
38
38
15

Low Clouds (% Sky Obscured)

36
36
36
36
36
31
31
31
31
31
31
9
9
9
9
9
9
32
32
32
32
32
32
14

Medium Clouds (% Sky Obscured)

13
13
13
13
13
0
0
0
0
0
0
30
30
30
30
30
30
22
22
22
22
22
22
3

High Clouds (% Sky Obscured)

13
13
13
13
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

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

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

7
11
12
12
15
17
0
0
4
8
11
13
13
13
13
13
12
11
10
7
4
5
9
11

Precipitation Amount (mm)

0.01
0.02
0.03
0.03
0.06
0.11
0
0
0.01
0.03
0.07
0.13
0.16
0.19
0.19
0.17
0.13
0.08
0.04
0.02
0.01
0.02
0.02
0.03

Wind Speed/Direction (mph)

15
15
16
16
16
17
16
18
20
20
20
20
19
19
18
17
16
15
12
12
12
11
12
13

Chance of Frost

Temperature (°C)

7
7
7
6
6
6
7
8
8
9
9
9
9
9
9
9
9
9
8
7
6
6
5
6

Feels Like (°C)

3
3
2
2
2
2
3
4
4
4
5
5
6
6
5
5
6
6
5
4
3
2
2
2

Dew Point (°C)

4
4
4
3
3
3
4
4
4
4
4
4
4
4
4
4
3
3
3
3
2
2
2
2

Relative Humidity (%)

81
81
81
81
82
81
80
78
77
75
73
71
68
68
69
69
68
68
69
72
76
78
78
77

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013

Ozone (du)

389
389
389
392
396
400
401
402
403
406
410
413
414
414
414
412
410
408
407
406
405
403
401
399

Friday 27

Waxing Gibbous 95%

17:38

05:31

02 OK
03 OK
04 Good
05 Good
06 OK
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 OK
22 OK
23 OK
00 OK
01 Bad

Sun - Rise: 05:52, Set: 20:50, Transit: 13:21. Moon - Rise: 17:38, Set: 05:31. Civil Dark: 21:31 - 05:10. Nautical Dark: 22:26 - 04:16. Astro Dark: 23:39 - 03:03

Total Clouds (% Sky Obscured)

15
15
15
15
15
93
93
93
93
93
93
51
51
51
51
51
51
40
40
40
40
40
40
100

Low Clouds (% Sky Obscured)

14
14
14
14
14
87
87
87
87
87
87
27
27
27
27
27
27
34
34
34
34
34
34
59

Medium Clouds (% Sky Obscured)

3
3
3
3
3
67
67
67
67
67
67
47
47
47
47
47
47
27
27
27
27
27
27
6

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
99

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

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

Precipitation Type

Very Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

10
8
0
0
7
7
0
0
0
12
16
18
18
18
17
15
13
13
13
13
12
11
9
3

Precipitation Amount (mm)

0.02
0.01
0
0
0.01
0.01
0
0
0
0.06
0.34
0.68
0.79
0.75
0.63
0.39
0.19
0.12
0.09
0.07
0.04
0.02
0.01
0.01

Wind Speed/Direction (mph)

12
11
12
11
10
11
11
11
11
11
10
10
9
9
9
10
10
11
10
9
8
4
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
1
0
-0
-0
1
3
5
6
7
7
8
8
7
7
7
7
6
5
4
4
4
4

Dew Point (°C)

2
2
2
2
2
2
2
3
4
4
4
4
4
5
5
5
5
5
5
4
4
4
3
3

Relative Humidity (%)

77
77
80
84
88
88
84
77
74
72
70
69
69
70
73
75
76
77
78
81
84
86
85
84

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013

Ozone (du)

397
394
393
393
394
395
393
389
387
386
387
387
386
385
385
384
385
385
386
388
390
392
394
396

Saturday 28

Waxing Gibbous 99%

18:53

05:51

02 Bad
03 Bad
04 Bad
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: 05:50, Set: 20:52, Transit: 13:21. Moon - Rise: 18:53, Set: 05:51. Civil Dark: 21:33 - 05:08. Nautical Dark: 22:29 - 04:13. Astro Dark: 23:43 - 02:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

59
59
59
59
59
1
1
1
1
1
1
16
16
16
16
16
16
0
0
0
0
0
0
16

Medium Clouds (% Sky Obscured)

6
6
6
6
6
2
2
2
2
2
2
93
93
93
93
93
93
99
99
99
99
99
99
98

High Clouds (% Sky Obscured)

99
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
30

ISS Passover

Visibility (miles)

10
10
10
10
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

Fog (%)

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

Precipitation Type

None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

3
10
11
12
12
13
13
12
12
12
14
14
14
12
10
10
13
15
15
15
14
13
13
13

Precipitation Amount (mm)

0.01
0.01
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.04
0.08
0.12
0.09
0.04
0.02
0.01
0.02
0.05
0.08
0.1
0.11
0.1
0.07
0.06

Wind Speed/Direction (mph)

4
6
7
7
5
7
7
6
9
7
3
8
8
8
7
7
7
7
7
7
6
7
7
7

Chance of Frost

Temperature (°C)

5
5
4
4
4
4
6
7
8
8
9
9
10
10
10
10
10
9
9
8
7
6
6
6

Feels Like (°C)

4
3
2
1
2
2
3
5
5
6
9
7
8
8
8
8
8
8
7
6
4
4
3
3

Dew Point (°C)

3
3
3
3
2
3
3
5
5
5
5
4
4
4
4
5
5
5
5
4
4
3
3
2

Relative Humidity (%)

84
86
89
90
89
88
86
85
85
81
76
72
69
68
68
70
72
73
76
80
84
84
82
79

Pressure (mb)

1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

398
399
400
402
403
404
404
404
404
403
401
400
399
397
397
396
397
397
397
397
397
397
398
398

Sunday 29

Waxing Gibbous 100%

20:08

06:11

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
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: 05:47, Set: 20:54, Transit: 13:21. Moon - Rise: 20:08, Set: 06:11. Civil Dark: 21:35 - 05:06. Nautical Dark: 22:31 - 04:10. Astro Dark: 23:48 - 02:53

Total Clouds (% Sky Obscured)

98
98
98
98
98
2
2
2
2
2
2
94
94
94
94
94
94
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

16
16
16
16
16
2
2
2
2
2
2
8
8
8
8
8
8
1
1
1
1
1
1
4

Medium Clouds (% Sky Obscured)

98
98
98
98
98
0
0
0
0
0
0
0
0
0
0
0
0
99
99
99
99
99
99
96

High Clouds (% Sky Obscured)

30
30
30
30
30
0
0
0
0
0
0
93
93
93
93
93
93
99
99
99
99
99
99
80

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

Fog (%)

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

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

13
13
12
12
11
12
14
15
16
16
16
16
17
17
17
16
16
16
15
14
13
13
12
12

Precipitation Amount (mm)

0.05
0.04
0.04
0.06
0.1
0.14
0.17
0.21
0.23
0.24
0.24
0.23
0.2
0.16
0.13
0.11
0.09
0.07
0.05
0.03
0.02
0.02
0.02
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
5
4
3
3
3
4
6
7
7
7
8
8
9
9
9
9
9
8
7
6
6
5
5

Feels Like (°C)

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

Dew Point (°C)

2
2
2
2
2
2
3
4
5
5
5
5
4
4
4
4
4
4
4
3
3
3
2
2

Relative Humidity (%)

79
80
84
88
92
92
92
90
90
87
83
79
77
76
75
75
74
72
73
75
79
81
81
81

Pressure (mb)

1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1011
1011

Ozone (du)

398
399
399
399
399
400
400
399
399
399
398
398
399
400
400
400
400
400
400
400
400
400
400
400

Forecast for Belfast, Belfast, UK (54.60,-5.93)

Generated: 23/04/18 02:54:12. Forecast: 23/04/18 to 29/04/18. Timezone: UTC+1.00