Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 24

Waxing Gibbous 60%

12:21

03:49

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: 05:51, Set: 20:17, Transit: 13:05. Moon - Rise: 12:21, Set: 03:49. Civil Dark: 20:54 - 05:14. Nautical Dark: 21:41 - 04:27. Astro Dark: 22:36 - 03:31

Total Clouds (% Sky Obscured)

98
97
97
98
98
98
95
91
95
66
100
100
100
100
100
100
100
100
100
98
100
100
100
100

Low Clouds (% Sky Obscured)

78
64
81
74
88
86
49
79
41
52
100
100
100
100
100
100
100
100
98
80
48
70
48
5

Medium Clouds (% Sky Obscured)

1
0
0
17
14
32
59
70
78
2
95
94
52
45
23
13
63
81
33
77
99
100
100
100

High Clouds (% Sky Obscured)

95
93
94
97
95
93
88
50
75
40
73
77
84
88
90
88
84
93
95
91
52
92
95
94

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
7
8
8
8

Fog (%)

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
None
None
None
Very Light Rain
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
Very Light Rain

Precipitation Probability (%)

0
3
0
0
0
0
3
4
3
0
0
3
5
7
8
12
14
14
12
9
4
11
19
32

Precipitation Amount (mm)

0
0.01
0
0
0
0
0.01
0.01
0.01
0
0
0.01
0.03
0.04
0.06
0.13
0.2
0.19
0.14
0.09
0.01
0.06
0.17
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
60
61
63
60
64
67
74
81
91
100
100
100
100
98
95
93
92
94
95
86
85
85
86

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1015
1015
1015
1015
1015
1015

Ozone (du)

355
352
351
350
349
347
345
343
340
338
335
333
331
329
328
328
327
327
327
327
326
325
325
324

Wednesday 25

Waxing Gibbous 71%

13:35

04:21

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

Sun - Rise: 05:49, Set: 20:19, Transit: 13:05. Moon - Rise: 13:35, Set: 04:21. Civil Dark: 20:56 - 05:11. Nautical Dark: 21:43 - 04:24. Astro Dark: 22:38 - 03:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
83
99
66
88
63
38
30
31
23
63
45
90
43

Low Clouds (% Sky Obscured)

95
100
100
100
100
100
100
100
100
100
95
82
99
66
88
63
36
29
31
20
59
36
88
32

Medium Clouds (% Sky Obscured)

100
99
100
100
92
93
80
100
100
100
67
22
21
2
0
2
10
3
0
6
17
23
17
22

High Clouds (% Sky Obscured)

93
95
60
12
6
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
8
10
10
10
9
9
8
8
9
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

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

Precipitation Probability (%)

49
59
60
56
52
52
54
52
48
41
33
22
10
4
3
0
0
4
6
6
4
3
3
4

Precipitation Amount (mm)

0.45
0.63
0.64
0.54
0.5
0.58
0.78
0.92
0.89
0.77
0.59
0.33
0.11
0.02
0.01
0
0
0.01
0.03
0.03
0.02
0.01
0.01
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
10
11
12
12
13
12
12
11
7
6
5
5
6
6
6
7
6
5
6
7
11
11

Dew Point (°C)

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

Relative Humidity (%)

88
92
95
98
99
97
94
94
96
99
100
100
100
99
95
91
87
86
87
88
84
79
75
72

Pressure (mb)

1014
1014
1013
1012
1011
1010
1010
1009
1009
1010
1010
1010
1010
1011
1011
1011
1012
1012
1012
1013
1013
1014
1014
1014

Ozone (du)

323
322
321
321
321
321
322
324
326
330
332
334
335
336
337
338
339
340
341
343
346
350
354
357

Thursday 26

Waxing Gibbous 81%

14:51

04:48

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

Sun - Rise: 05:47, Set: 20:20, Transit: 13:05. Moon - Rise: 14:51, Set: 04:48. Civil Dark: 20:58 - 05:09. Nautical Dark: 21:45 - 04:21. Astro Dark: 22:42 - 03:24

Total Clouds (% Sky Obscured)

37
63
45
47
36
35
39
32
32
26
13
12
6
3
2
5
2
1
2
7
13
20
45
77

Low Clouds (% Sky Obscured)

27
18
28
31
30
28
30
31
31
25
13
12
6
3
2
4
2
1
2
7
13
19
27
20

Medium Clouds (% Sky Obscured)

16
59
37
39
25
25
20
9
7
6
5
1
0
0
0
1
0
0
0
0
0
0
9
19

High Clouds (% Sky Obscured)

0
0
2
0
0
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
24
70

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

Precipitation Probability (%)

6
8
10
11
11
10
8
8
8
9
9
7
5
0
0
0
0
0
0
0
0
0
0
3

Precipitation Amount (mm)

0.06
0.12
0.13
0.13
0.11
0.09
0.07
0.06
0.06
0.06
0.06
0.04
0.01
0
0
0
0
0
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

16
17
19
20
20
20
19
18
17
16
15
15
14
13
13
13
13
13
12
13
14
16
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
6
6
6
6
5
5
4
4
4
4
3
3
3
3
3
3
3
4
4
4
5

Relative Humidity (%)

72
72
71
69
68
67
67
69
73
79
83
84
82
80
79
78
78
79
81
81
78
73
70
68

Pressure (mb)

1014
1014
1014
1014
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017

Ozone (du)

360
362
362
362
362
364
367
370
374
378
381
383
383
383
383
383
382
381
381
380
380
379
378
377

Friday 27

Waxing Gibbous 89%

16:06

05:12

12 Bad
13 OK
14 OK
15 OK
16 OK
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: 05:45, Set: 20:22, Transit: 13:04. Moon - Rise: 16:06, Set: 05:12. Civil Dark: 20:59 - 05:07. Nautical Dark: 21:47 - 04:19. Astro Dark: 22:45 - 03:21

Total Clouds (% Sky Obscured)

48
38
23
17
30
99
100
98
98
98
99
99
100
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

31
27
17
15
13
9
6
9
8
9
13
2
2
32
29
23
24
87
98
16
16
16
16
16

Medium Clouds (% Sky Obscured)

33
29
16
10
6
5
9
22
98
82
94
68
98
94
99
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

11
2
0
0
20
99
100
98
45
91
97
99
100
96
100
99
99
99
99
100
100
100
100
100

ISS Passover

Visibility (miles)

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

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
None
Very Light Rain
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
Very Light Rain

Precipitation Probability (%)

4
4
5
5
5
5
4
3
0
0
0
9
15
19
22
24
25
26
29
32
35
36
35
32

Precipitation Amount (mm)

0.02
0.03
0.04
0.05
0.05
0.03
0.01
0.01
0
0
0
0.02
0.09
0.17
0.23
0.28
0.33
0.38
0.41
0.43
0.44
0.45
0.44
0.38

Wind Speed/Direction (mph)

18
19
19
19
18
17
15
13
11
9
8
7
7
7
6
5
5
4
4
4
4
5
5
5

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
10
8
7
5
5
4
4
4
4
4
4
4
4
5
6
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
66
66
65
64
63
64
67
71
78
84
90
95
99
100
100
100
100
100
100
98
92
86
84

Pressure (mb)

1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1014
1014
1013
1013
1012
1012
1012
1012
1012

Ozone (du)

376
374
372
368
366
364
362
361
360
359
358
358
357
357
359
362
365
369
372
376
379
382
384
385

Saturday 28

Waxing Gibbous 95%

17:20

05:35

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: 05:43, Set: 20:24, Transit: 13:04. Moon - Rise: 17:20, Set: 05:35. Civil Dark: 21:01 - 05:05. Nautical Dark: 21:49 - 04:16. Astro Dark: 22:48 - 03:17

Total Clouds (% Sky Obscured)

100
99
99
99
99
99
99
87
87
87
87
87
87
100
100
100
100
100
100
98
98
98
98
98

Low Clouds (% Sky Obscured)

16
31
31
31
31
31
31
1
1
1
1
1
1
100
100
100
100
100
100
98
98
98
98
98

Medium Clouds (% Sky Obscured)

100
91
91
91
91
91
91
82
82
82
82
82
82
48
48
48
48
48
48
13
13
13
13
13

High Clouds (% Sky Obscured)

100
98
98
98
98
98
98
34
34
34
34
34
34
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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

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
Very Light Rain
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

Precipitation Probability (%)

26
22
18
14
12
10
8
7
6
5
6
0
5
8
9
10
11
12
14
15
15
13
12
13

Precipitation Amount (mm)

0.3
0.24
0.19
0.16
0.13
0.09
0.05
0.03
0.01
0.01
0.01
0
0.01
0.01
0.03
0.07
0.12
0.19
0.27
0.29
0.21
0.1
0.06
0.09

Wind Speed/Direction (mph)

5
5
5
5
5
5
4
4
4
4
4
4
4
5
5
6
6
7
7
8
9
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
8
8
9
10
11
10
8
6
4
4
3
3
2
2
1
2
2
2
3
4
5
5

Dew Point (°C)

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

Relative Humidity (%)

83
83
82
80
78
76
76
78
84
88
93
96
99
99
100
100
99
97
97
96
95
92
90
88

Pressure (mb)

1012
1012
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

385
386
388
390
391
388
383
378
375
373
371
368
364
361
358
355
353
352
351
351
351
351
351
350

Sunday 29

Waxing Gibbous 99%

18:33

05:59

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

Sun - Rise: 05:41, Set: 20:25, Transit: 13:04. Moon - Rise: 18:33, Set: 05:59. Civil Dark: 21:03 - 05:03. Nautical Dark: 21:52 - 04:14. Astro Dark: 22:51 - 03:14

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
49
49
49
49
49
49
6
6
6
6
6
6
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
100
100
100
100
100
100
35
35
35
35
35
35
6
6
6
6
6
6
0
0
0
0
0

Medium Clouds (% Sky Obscured)

13
13
13
13
13
13
13
27
27
27
27
27
27
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
5
5
5
5
5
5
20
20
20
20
20
20
0
0
0
0
0
0
100
100
100
100
100

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
9
9
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

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

Precipitation Probability (%)

15
16
16
17
19
21
22
23
23
22
22
21
20
20
20
21
23
24
25
27
30
33
35
37

Precipitation Amount (mm)

0.17
0.24
0.2
0.21
0.32
0.56
0.89
1.12
1.12
1.09
1.07
0.83
0.52
0.37
0.42
0.59
0.7
0.56
0.36
0.29
0.31
0.41
0.55
0.7

Wind Speed/Direction (mph)

14
14
14
14
13
13
13
13
14
15
16
15
15
15
15
15
16
16
16
17
16
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
5
5
6
6
6
6
5
3
2
1
1
1
1
2
2
3
2
2
2
2
3
4

Dew Point (°C)

7
7
7
7
7
7
7
7
7
6
6
5
5
5
5
6
6
6
6
6
6
6
7
7

Relative Humidity (%)

88
90
91
92
91
89
87
88
91
95
99
100
100
100
100
100
97
95
95
97
99
99
98
97

Pressure (mb)

1011
1010
1010
1009
1009
1009
1009
1008
1008
1009
1009
1008
1008
1008
1007
1006
1006
1005
1005
1004
1004
1003
1003
1002

Ozone (du)

349
348
347
346
345
345
346
347
347
348
348
348
348
347
347
346
346
346
347
347
348
348
349
350

Monday 30

Full Moon 100%

19:45

06:23

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: 05:39, Set: 20:27, Transit: 13:04. Moon - Rise: 19:45, Set: 06:23. Civil Dark: 21:05 - 05:01. Nautical Dark: 21:54 - 04:11. Astro Dark: 22:54 - 03:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
66
66
66
66
66

Low Clouds (% Sky Obscured)

0
100
100
100
100
100
100
38
38
38
38
38
38
99
99
99
99
99
99
52
52
52
52
52

Medium Clouds (% Sky Obscured)

0
82
82
82
82
82
82
100
100
100
100
100
100
98
98
98
98
98
98
32
32
32
32
32

High Clouds (% Sky Obscured)

100
99
99
99
99
99
99
99
99
99
99
99
99
52
52
52
52
52
52
0
0
0
0
0

ISS Passover

Visibility (miles)

9
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

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

Precipitation Probability (%)

37
36
35
34
32
30
28
27
24
21
19
17
15
14
14
13
12
11
11
11
11
10
9
9

Precipitation Amount (mm)

0.87
0.95
0.97
1.25
1.67
1.87
1.87
1.71
1.32
0.85
0.54
0.37
0.27
0.2
0.13
0.08
0.06
0.08
0.13
0.14
0.07
0.02
0.02
0.03

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
99
100
100
98
95
93
92
94
95
97
96
93
91
91
93
96
99
100
99
95
90
85
80

Pressure (mb)

1002
1001
1001
1001
1001
1001
1001
1002
1002
1003
1004
1005
1005
1006
1006
1007
1007
1008
1008
1009
1010
1010
1011
1011

Ozone (du)

350
352
355
358
362
368
375
381
383
384
385
385
385
385
385
384
383
383
383
383
382
382
382
382

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

Generated: 24/04/18 09:51:15. Forecast: 24/04/18 to 30/04/18. Timezone: UTC+1.00