Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waning Gibbous 57%

02:43

11:05

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

Sun - Rise: 05:47, Set: 20:20, Transit: 13:05. Moon - Rise: 02:43, Set: 11:05. Civil Dark: 20:57 - 05:10. Nautical Dark: 21:44 - 04:22. Astro Dark: 22:41 - 03:25

Total Clouds (% Sky Obscured)

61
70
42
41
45
23
20
63
4
23
68
23
2
1
2
3
8
5
5
8
24
62
98
100

Low Clouds (% Sky Obscured)

55
32
31
29
16
17
9
0
2
4
3
2
2
1
1
3
6
5
4
5
4
30
29
24

Medium Clouds (% Sky Obscured)

11
10
25
29
31
18
7
2
0
0
5
2
0
0
0
2
6
3
2
3
2
2
41
98

High Clouds (% Sky Obscured)

11
64
9
5
15
0
11
63
2
20
66
21
0
0
1
0
0
0
0
2
21
51
98
100

ISS Passover

Visibility (miles)

10
10
9
4
1
3
5
7
8
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

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

Precipitation Probability (%)

17
10
11
14
15
14
13
8
4
0
0
0
0
0
0
0
2
0
0
0
0
0
0
6

Precipitation Amount (mm)

0.25
0.06
0.08
0.13
0.16
0.13
0.07
0.02
0.02
0
0
0
0
0
0
0
0.01
0
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

13
15
17
16
16
15
15
14
9
8
7
7
7
7
7
7
7
7
7
7
9
11
12
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
14
14
14
14
14
13
13
11
8
7
6
5
5
5
5
5
5
5
7
11
12
13

Dew Point (°C)

7
7
7
7
7
7
5
4
4
4
4
4
4
4
4
4
4
5
5
6
6
7
8
8

Relative Humidity (%)

69
65
62
61
61
61
54
55
57
61
68
74
78
80
82
83
84
86
89
88
84
78
73
69

Pressure (mb)

997
997
998
999
999
1000
1000
1001
1002
1003
1004
1004
1005
1005
1006
1006
1006
1006
1007
1007
1008
1008
1008
1009

Ozone (du)

399
400
401
402
402
402
391
395
396
398
399
400
402
403
403
401
399
397
394
392
389
387
385
381

Friday 26

Third Quarter 47%

03:20

12:07

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 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:45, Set: 20:22, Transit: 13:04. Moon - Rise: 03:20, Set: 12:07. Civil Dark: 20:59 - 05:08. Nautical Dark: 21:47 - 04:20. Astro Dark: 22:44 - 03:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
100
100
94
98
100
100
100
33
18
26
100
100
45
98
92
89
76
95

Low Clouds (% Sky Obscured)

45
92
33
84
100
98
100
100
17
59
100
100
77
4
2
5
85
100
41
51
84
81
73
84

Medium Clouds (% Sky Obscured)

100
100
100
99
92
47
72
95
91
98
99
74
100
31
17
25
100
86
13
97
84
79
24
71

High Clouds (% Sky Obscured)

73
70
4
0
45
16
81
70
19
0
0
0
0
0
0
0
31
34
0
24
4
0
0
0

ISS Passover

Visibility (miles)

10
8
6
4
4
7
10
10
10
10
10
10
5
2
4
9
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
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

14
23
57
42
21
14
10
8
18
28
41
40
52
24
18
13
23
26
41
45
26
26
29
21

Precipitation Amount (mm)

0.04
0.1
0.76
0.25
0.05
0.03
0.01
0.01
0.05
0.12
0.25
0.17
0.47
0.1
0.06
0.04
0.09
0.11
0.57
1.19
0.46
0.35
0.54
0.43

Wind Speed/Direction (mph)

15
16
16
16
16
15
14
14
15
18
20
21
20
19
22
24
25
25
24
26
27
28
28
28

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
13
12
12
12
12
12
11
11
10
6
6
5
4
4
3
2
2
2
3
4
5
6

Dew Point (°C)

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

Relative Humidity (%)

67
68
72
73
73
71
67
65
68
74
78
77
74
72
73
74
75
76
75
71
65
61
58
57

Pressure (mb)

1009
1009
1009
1009
1009
1009
1010
1009
1009
1009
1008
1007
1006
1005
1004
1004
1003
1002
1002
1002
1003
1005
1007
1008

Ozone (du)

377
373
370
367
366
365
365
367
370
375
381
391
403
411
410
406
402
401
402
403
405
408
410
412

Saturday 27

Waning Crescent 37%

03:50

12:07

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 Good
01 Good
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:43, Set: 20:23, Transit: 13:04. Moon - Rise: 03:50, Set: 12:07. Civil Dark: 21:01 - 05:06. Nautical Dark: 21:49 - 04:17. Astro Dark: 22:47 - 03:18

Total Clouds (% Sky Obscured)

99
89
99
100
100
100
98
98
88
32
37
20
10
8
31
31
68
84
62
72
72
72
72
72

Low Clouds (% Sky Obscured)

98
87
73
84
15
9
6
6
2
2
2
2
1
1
1
2
17
24
20
12
12
12
12
12

Medium Clouds (% Sky Obscured)

92
62
98
100
100
100
98
98
88
31
36
20
9
7
31
30
67
84
48
2
2
2
2
2

High Clouds (% Sky Obscured)

0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
2
22
69
69
69
69
69

ISS Passover

Visibility (miles)

10
10
10
5
2
4
8
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

14
12
17
26
29
26
17
12
6
0
0
0
0
0
0
0
0
2
3
5
6
6
6
7

Precipitation Amount (mm)

0.32
0.24
0.37
0.5
0.57
0.4
0.2
0.08
0.03
0
0
0
0
0
0
0
0
0.01
0.02
0.03
0.05
0.07
0.09
0.11

Wind Speed/Direction (mph)

28
28
27
26
26
24
21
20
18
17
16
15
14
14
13
13
12
12
11
10
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
11
11
12
12
12
12
12
11
10
6
6
5
5
5
5
4
4
4
4
6
7
11
11

Dew Point (°C)

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

Relative Humidity (%)

56
56
54
53
53
53
53
53
55
57
59
60
62
63
64
65
67
71
74
75
72
70
69
69

Pressure (mb)

1010
1011
1013
1014
1014
1015
1016
1017
1017
1018
1019
1019
1020
1020
1020
1021
1021
1021
1022
1022
1023
1023
1023
1023

Ozone (du)

414
414
414
414
414
415
416
417
414
410
407
403
400
397
394
390
386
383
381
378
376
374
372
370

Sunday 28

Waning Crescent 28%

04:15

13:11

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:41, Set: 20:25, Transit: 13:04. Moon - Rise: 04:15, Set: 13:11. Civil Dark: 21:03 - 05:03. Nautical Dark: 21:51 - 04:14. Astro Dark: 22:50 - 03:15

Total Clouds (% Sky Obscured)

72
100
100
100
100
100
100
90
90
90
90
90
90
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

12
100
100
100
100
100
100
59
59
59
59
59
59
7
7
7
7
7
7
100
100
100
100
100

Medium Clouds (% Sky Obscured)

2
0
0
0
0
0
0
83
83
83
83
83
83
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

69
54
54
54
54
54
54
35
35
35
35
35
35
97
97
97
97
97
97
78
78
78
78
78

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

Precipitation Probability (%)

9
10
15
16
16
19
18
13
11
8
6
4
4
3
4
4
5
5
6
6
6
7
7
6

Precipitation Amount (mm)

0.18
0.2
0.28
0.25
0.22
0.17
0.12
0.09
0.07
0.06
0.06
0.06
0.07
0.08
0.08
0.08
0.07
0.06
0.05
0.05
0.04
0.03
0.02
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
71
69
69
70
70
73
74
78
80
82
84
85
86
87
87
88
90
91
91
90
88
84
79

Pressure (mb)

1023
1023
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

368
367
364
362
361
360
359
360
362
365
367
365
361
359
357
357
357
358
359
359
359
357
357
356

Monday 29

Waning Crescent 20%

04:36

14:16

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

Sun - Rise: 05:39, Set: 20:27, Transit: 13:04. Moon - Rise: 04:36, Set: 14:16. Civil Dark: 21:05 - 05:01. Nautical Dark: 21:53 - 04:12. Astro Dark: 22:53 - 03:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

100
15
15
15
15
15
15
11
11
11
11
11
11
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
4
4
4
4
4
4
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

78
2
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
9
6
4
2
3
6
10
10
10
10
8
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
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
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
5
11
23
31
36
36
28
17
6
3
2
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.02
0.08
0.17
0.21
0.24
0.23
0.18
0.1
0.05
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
15
15
15
14
14
13
12
11
10
9
9
8
8
7
6
6
6
7
8
11
13
15

Feels Like (°C)

13
14
15
15
15
14
14
13
12
11
10
7
7
6
5
4
3
3
3
4
6
11
13
15

Dew Point (°C)

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

Relative Humidity (%)

74
68
65
64
65
69
73
76
77
79
80
82
82
83
83
83
85
86
87
87
84
78
73
68

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

356
357
357
357
357
357
357
357
358
359
360
360
361
362
363
365
366
366
366
366
365
363
362
362

Tuesday 30

Waning Crescent 13%

04:55

15:22

12 Good
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 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 05:37, Set: 20:28, Transit: 13:04. Moon - Rise: 04:55, Set: 15:22. Civil Dark: 21:06 - 04:59. Nautical Dark: 21:56 - 04:09. Astro Dark: 22:57 - 03:07

Total Clouds (% Sky Obscured)

0
98
98
98
98
98
98
23
23
23
23
23
23
95
95
95
95
95
95
99
99
99
99
99

Low Clouds (% Sky Obscured)

0
85
85
85
85
85
85
6
6
6
6
6
6
9
9
9
9
9
9
2
2
2
2
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
1
1
1
1
85
85
85
85
85
85
92
92
92
92
92

High Clouds (% Sky Obscured)

0
90
90
90
90
90
90
20
20
20
20
20
20
58
58
58
58
58
58
98
98
98
98
98

ISS Passover

Visibility (miles)

9
7
9
10
10
10
7
4
7
10
10
10
10
10
10
5
2
1
1
2
4
5
7
9

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

Precipitation Probability (%)

4
4
5
5
5
4
3
0
0
4
8
9
10
12
18
30
42
47
43
41
35
31
27
18

Precipitation Amount (mm)

0.02
0.04
0.07
0.09
0.09
0.05
0.01
0
0
0.02
0.04
0.04
0.03
0.05
0.14
0.37
0.61
0.69
0.69
0.65
0.55
0.42
0.31
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
18
18
18
17
16
15
14
14
13
12
11
11
10
8
8
8
8
8
10
11
11
12

Dew Point (°C)

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

Relative Humidity (%)

64
58
54
51
50
52
54
56
58
60
62
65
67
68
71
73
76
77
78
78
77
76
74
74

Pressure (mb)

1021
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

362
363
365
367
369
369
368
367
367
367
367
366
363
362
361
360
360
362
364
366
368
369
369
367

Wednesday 1

Waning Crescent 7%

05:14

16:29

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
05 Bad
06 Bad
07 OK
08 OK
09 OK
10 OK
11 OK

Sun - Rise: 05:36, Set: 20:30, Transit: 13:04. Moon - Rise: 05:14, Set: 16:29. Civil Dark: 21:08 - 04:57. Nautical Dark: 21:58 - 04:07. Astro Dark: 23:00 - 03:04

Total Clouds (% Sky Obscured)

99
98
98
98
98
98
98
94
94
94
94
94
94
58
58
58
58
58
58
38
38
38
38
38

Low Clouds (% Sky Obscured)

2
18
18
18
18
18
18
14
14
14
14
14
14
30
30
30
30
30
30
20
20
20
20
20

Medium Clouds (% Sky Obscured)

92
96
96
96
96
96
96
93
93
93
93
93
93
49
49
49
49
49
49
34
34
34
34
34

High Clouds (% Sky Obscured)

98
62
62
62
62
62
62
6
6
6
6
6
6
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
8
7
6
6
7
9
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

11
7
10
18
23
25
25
22
16
6
2
0
0
0
0
0
0
0
0
0
0
0
0
2

Precipitation Amount (mm)

0.11
0.08
0.12
0.24
0.37
0.41
0.41
0.34
0.19
0.05
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
15
16
17
17
16
15
14
12
11
10
9
8
8
7
7
7
7
8
9
12
13
14

Feels Like (°C)

13
14
15
16
17
17
16
15
14
12
11
8
7
6
6
5
5
5
5
6
8
12
13
14

Dew Point (°C)

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

Relative Humidity (%)

73
71
67
64
62
62
62
63
64
66
69
72
75
78
80
82
83
84
85
84
79
74
71
68

Pressure (mb)

1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

364
361
359
358
357
357
358
360
361
364
366
370
373
377
378
379
380
379
377
376
375
374
373
373

Forecast for Swindon, Wiltshire, UK (51.56,-1.78)

Generated: 25/04/19 20:25:10. Forecast: 25/04/19 to 01/05/19. Timezone: UTC+1.00