Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 24

Waxing Gibbous 71%

13:35

03:49

00 Bad
01 Bad
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

Sun - Rise: 05:51, Set: 20:19, Transit: 13:05. Moon - Rise: 13:35, Set: 03:49. Civil Dark: 20:56 - 05:14. Nautical Dark: 21:43 - 04:27. Astro Dark: 22:38 - 03:31

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
83

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
98
80
48
70
48
5
95
100
100
100
100
100
100
100
100
100
95
82

Medium Clouds (% Sky Obscured)

52
45
23
13
63
81
33
77
99
100
100
100
100
99
100
100
92
93
80
100
100
100
67
22

High Clouds (% Sky Obscured)

84
88
90
88
84
93
95
91
52
92
95
94
93
95
60
12
6
0
0
2
0
0
0
0

ISS Passover

Visibility (miles)

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

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
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

Precipitation Probability (%)

5
7
8
12
14
14
12
9
4
11
19
32
49
59
60
56
52
52
54
52
48
41
33
22

Precipitation Amount (mm)

0.03
0.04
0.06
0.13
0.2
0.19
0.14
0.09
0.01
0.06
0.17
0.2
0.45
0.63
0.64
0.54
0.5
0.58
0.78
0.92
0.89
0.77
0.59
0.33

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
6
10
11
11
10
7
10
11
11
10
8
8
10
11
12
12
13
12
12
11
7
6

Dew Point (°C)

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

Relative Humidity (%)

100
100
98
95
93
92
94
95
86
85
85
86
88
92
95
98
99
97
94
94
96
99
100
100

Pressure (mb)

1016
1015
1015
1015
1014
1014
1015
1015
1015
1015
1015
1015
1014
1014
1013
1012
1011
1010
1010
1009
1009
1010
1010
1010

Ozone (du)

331
329
328
328
327
327
327
327
326
325
325
324
323
322
321
321
321
321
322
324
326
330
332
334

Wednesday 25

Waxing Gibbous 81%

14:51

04:21

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

Sun - Rise: 05:49, Set: 20:20, Transit: 13:05. Moon - Rise: 14:51, Set: 04:21. Civil Dark: 20:58 - 05:11. Nautical Dark: 21:45 - 04:24. Astro Dark: 22:42 - 03:28

Total Clouds (% Sky Obscured)

99
66
88
63
38
30
31
23
63
45
90
43
37
63
45
47
36
35
39
32
32
26
13
12

Low Clouds (% Sky Obscured)

99
66
88
63
36
29
31
20
59
36
88
32
27
18
28
31
30
28
30
31
31
25
13
12

Medium Clouds (% Sky Obscured)

21
2
0
2
10
3
0
6
17
23
17
22
16
59
37
39
25
25
20
9
7
6
5
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
3
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
None
None
None
None
None
Very Light Rain
Very Light Rain
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

10
4
3
0
0
4
6
6
4
3
3
4
6
8
10
11
11
10
8
8
8
9
9
7

Precipitation Amount (mm)

0.11
0.02
0.01
0
0
0.01
0.03
0.03
0.02
0.01
0.01
0.02
0.06
0.12
0.13
0.13
0.11
0.09
0.07
0.06
0.06
0.06
0.06
0.04

Wind Speed/Direction (mph)

12
12
11
10
10
8
10
11
11
11
13
15
16
17
19
20
20
20
19
18
17
16
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
99
95
91
87
86
87
88
84
79
75
72
72
72
71
69
68
67
67
69
73
79
83
84

Pressure (mb)

1010
1011
1011
1011
1012
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1014
1014
1015
1015

Ozone (du)

335
336
337
338
339
340
341
343
346
350
354
357
360
362
362
362
362
364
367
370
374
378
381
383

Thursday 26

Waxing Gibbous 89%

16:06

04:48

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

Sun - Rise: 05:47, Set: 20:22, Transit: 13:04. Moon - Rise: 16:06, Set: 04:48. Civil Dark: 20:59 - 05:09. Nautical Dark: 21:47 - 04:21. Astro Dark: 22:45 - 03:24

Total Clouds (% Sky Obscured)

6
3
2
5
2
1
2
7
13
20
45
77
48
38
23
17
30
99
100
98
98
98
99
99

Low Clouds (% Sky Obscured)

6
3
2
4
2
1
2
7
13
19
27
20
31
27
17
15
13
9
6
9
8
9
13
2

Medium Clouds (% Sky Obscured)

0
0
0
1
0
0
0
0
0
0
9
19
33
29
16
10
6
5
9
22
98
82
94
68

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
24
70
11
2
0
0
20
99
100
98
45
91
97
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

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

Precipitation Probability (%)

5
0
0
0
0
0
0
0
0
0
0
3
4
4
5
5
5
5
4
3
0
0
0
9

Precipitation Amount (mm)

0.01
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.03
0.04
0.05
0.05
0.03
0.01
0.01
0
0
0
0.02

Wind Speed/Direction (mph)

14
13
13
13
13
13
12
13
14
16
17
18
18
19
19
19
18
17
15
13
11
9
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
3
3
3
3
3
3
4
4
4
5
5
5
5
5
5
4
4
4
4
3
3
3

Relative Humidity (%)

82
80
79
78
78
79
81
81
78
73
70
68
67
66
66
65
64
63
64
67
71
78
84
90

Pressure (mb)

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

Ozone (du)

383
383
383
383
382
381
381
380
380
379
378
377
376
374
372
368
366
364
362
361
360
359
358
358

Friday 27

Waxing Gibbous 95%

17:20

05:12

00 Bad
01 Bad
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

Sun - Rise: 05:45, Set: 20:24, Transit: 13:04. Moon - Rise: 17:20, Set: 05:12. Civil Dark: 21:01 - 05:07. Nautical Dark: 21:49 - 04:19. Astro Dark: 22:48 - 03:21

Total Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
100
99
99
99
99
99
99
87
87
87
87
87

Low Clouds (% Sky Obscured)

2
32
29
23
24
87
98
16
16
16
16
16
16
31
31
31
31
31
31
1
1
1
1
1

Medium Clouds (% Sky Obscured)

98
94
99
100
100
100
100
100
100
100
100
100
100
91
91
91
91
91
91
82
82
82
82
82

High Clouds (% Sky Obscured)

100
96
100
99
99
99
99
100
100
100
100
100
100
98
98
98
98
98
98
34
34
34
34
34

ISS Passover

Visibility (miles)

10
10
10
10
9
8
7
5
5
5
4
6
7
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
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
None
Very Light Rain
None

Precipitation Probability (%)

15
19
22
24
25
26
29
32
35
36
35
32
26
22
18
14
12
10
8
7
6
5
6
0

Precipitation Amount (mm)

0.09
0.17
0.23
0.28
0.33
0.38
0.41
0.43
0.44
0.45
0.44
0.38
0.3
0.24
0.19
0.16
0.13
0.09
0.05
0.03
0.01
0.01
0.01
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
99
100
100
100
100
100
100
98
92
86
84
83
83
82
80
78
76
76
78
84
88
93
96

Pressure (mb)

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

Ozone (du)

357
357
359
362
365
369
372
376
379
382
384
385
385
386
388
390
391
388
383
378
375
373
371
368

Saturday 28

Waxing Gibbous 97%

18:33

05:35

00 Bad
01 Bad
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

Sun - Rise: 05:43, Set: 20:25, Transit: 13:04. Moon - Rise: 18:33, Set: 05:35. Civil Dark: 21:03 - 05:05. Nautical Dark: 21:52 - 04:16. Astro Dark: 22:51 - 03:17

Total Clouds (% Sky Obscured)

87
100
100
100
100
100
100
98
98
98
98
98
98
100
100
100
100
100
100
49
49
49
49
49

Low Clouds (% Sky Obscured)

1
100
100
100
100
100
100
98
98
98
98
98
98
100
100
100
100
100
100
35
35
35
35
35

Medium Clouds (% Sky Obscured)

82
48
48
48
48
48
48
13
13
13
13
13
13
13
13
13
13
13
13
27
27
27
27
27

High Clouds (% Sky Obscured)

34
0
0
0
0
0
0
0
0
0
0
0
0
5
5
5
5
5
5
20
20
20
20
20

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

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

5
8
9
10
11
12
14
15
15
13
12
13
15
16
16
17
19
21
22
23
23
22
22
21

Precipitation Amount (mm)

0.01
0.01
0.03
0.07
0.12
0.19
0.27
0.29
0.21
0.1
0.06
0.09
0.17
0.24
0.2
0.21
0.32
0.56
0.89
1.12
1.12
1.09
1.07
0.83

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

99
99
100
100
99
97
97
96
95
92
90
88
88
90
91
92
91
89
87
88
91
95
99
100

Pressure (mb)

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

Ozone (du)

364
361
358
355
353
352
351
351
351
351
351
350
349
348
347
346
345
345
346
347
347
348
348
348

Sunday 29

Waxing Gibbous 99%

19:45

05:59

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

Sun - Rise: 05:41, Set: 20:27, Transit: 13:04. Moon - Rise: 19:45, Set: 05:59. Civil Dark: 21:05 - 05:03. Nautical Dark: 21:54 - 04:14. Astro Dark: 22:54 - 03:14

Total Clouds (% Sky Obscured)

49
6
6
6
6
6
6
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

35
6
6
6
6
6
6
0
0
0
0
0
0
100
100
100
100
100
100
38
38
38
38
38

Medium Clouds (% Sky Obscured)

27
0
0
0
0
0
0
0
0
0
0
0
0
82
82
82
82
82
82
100
100
100
100
100

High Clouds (% Sky Obscured)

20
0
0
0
0
0
0
100
100
100
100
100
100
99
99
99
99
99
99
99
99
99
99
99

ISS Passover

Visibility (miles)

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

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
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

Precipitation Probability (%)

20
20
20
21
23
24
25
27
30
33
35
37
37
36
35
34
32
30
28
27
24
21
19
17

Precipitation Amount (mm)

0.52
0.37
0.42
0.59
0.7
0.56
0.36
0.29
0.31
0.41
0.55
0.7
0.87
0.95
0.97
1.25
1.67
1.87
1.87
1.71
1.32
0.85
0.54
0.37

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
2
2
3
2
2
2
2
3
4
4
4
4
5
6
7
7
6
5
4
3
2

Dew Point (°C)

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

Relative Humidity (%)

100
100
100
100
97
95
95
97
99
99
98
97
98
99
100
100
98
95
93
92
94
95
97
96

Pressure (mb)

1008
1008
1007
1006
1006
1005
1005
1004
1004
1003
1003
1002
1002
1001
1001
1001
1001
1001
1001
1002
1002
1003
1004
1005

Ozone (du)

348
347
347
346
346
346
347
347
348
348
349
350
350
352
355
358
362
368
375
381
383
384
385
385

Monday 30

Full Moon 100%

20:55

06:23

00 Bad
01 Bad
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

Sun - Rise: 05:39, Set: 20:29, Transit: 13:04. Moon - Rise: 20:55, Set: 06:23. Civil Dark: 21:07 - 05:01. Nautical Dark: 21:56 - 04:11. Astro Dark: 22:57 - 03:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
66
66
66
66
66
66
100
100
100
100
100
100
98
98
98
98
98

Low Clouds (% Sky Obscured)

38
99
99
99
99
99
99
52
52
52
52
52
52
100
100
100
100
100
100
91
91
91
91
91

Medium Clouds (% Sky Obscured)

100
98
98
98
98
98
98
32
32
32
32
32
32
94
94
94
94
94
94
96
96
96
96
96

High Clouds (% Sky Obscured)

99
52
52
52
52
52
52
0
0
0
0
0
0
13
13
13
13
13
13
91
91
91
91
91

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 (%)

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

Precipitation Amount (mm)

0.27
0.2
0.13
0.08
0.06
0.08
0.13
0.14
0.07
0.02
0.02
0.03
0.05
0.08
0.13
0.19
0.26
0.32
0.37
0.38
0.33
0.25
0.18
0.08

Wind Speed/Direction (mph)

12
11
11
11
10
10
10
10
10
10
10
10
10
9
9
9
9
9
9
9
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
1
0
-0
-0
0
2
4
5
7
8
10
8
8
8
10
10
7
6
4
3
2

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
93
96
99
100
99
95
90
85
80
77
77
80
82
83
83
84
86
89
92
93
94

Pressure (mb)

1005
1006
1006
1007
1007
1008
1008
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1015

Ozone (du)

385
385
385
384
383
383
383
383
382
382
382
382
382
383
384
385
386
385
384
383
383
383
383
384

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