Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waxing Gibbous 60%

12:31

03:15

00 Good
01 Good
02 OK
03 OK
04 OK
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: 06:02, Set: 20:22, Transit: 13:12. Moon - Rise: 12:31, Set: 03:15. Civil Dark: 20:58 - 05:26. Nautical Dark: 21:43 - 04:40. Astro Dark: 22:36 - 03:48

Total Clouds (% Sky Obscured)

3
5
23
15
20
94
89
93
99
98
98
100
100
100
98
95
88
92
92
93
98
98
95
95

Low Clouds (% Sky Obscured)

3
4
12
15
20
29
24
37
48
63
72
94
86
52
69
81
35
49
5
13
76
41
38
87

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
31
15
66
66
39
20
9
0
0
3
2
17
37
21
15

High Clouds (% Sky Obscured)

0
1
13
0
0
90
86
90
99
95
96
100
99
99
96
91
81
84
91
92
94
96
92
66

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

0
0
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0.01
0
0
0
0
0
0
0
0
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
8
8
8
8

Relative Humidity (%)

84
84
87
89
91
95
98
97
92
85
81
77
75
73
72
73
74
74
75
77
81
87
92
93

Pressure (mb)

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

Ozone (du)

357
359
358
357
357
356
355
354
353
352
350
349
348
347
345
344
342
341
339
338
336
333
331
330

Tuesday 24

Waxing Gibbous 71%

13:45

03:54

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: 06:00, Set: 20:23, Transit: 13:12. Moon - Rise: 13:45, Set: 03:54. Civil Dark: 21:00 - 05:24. Nautical Dark: 21:45 - 04:38. Astro Dark: 22:39 - 03:45

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

97
80
84
91
96
97
97
97
93
98
100
100
99
97
98
95
95
98
98
98
100
100
98
100

Medium Clouds (% Sky Obscured)

31
92
100
98
95
88
84
48
52
27
47
44
83
52
75
89
98
84
72
70
73
96
99
100

High Clouds (% Sky Obscured)

66
54
31
8
0
0
3
9
12
27
20
39
41
6
77
63
0
22
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
8
10
10
10
10
10
9
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
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 (%)

6
7
8
10
10
10
10
10
10
10
9
7
5
4
5
8
10
15
20
22
18
10
2
2

Precipitation Amount (mm)

0.02
0.05
0.08
0.12
0.15
0.13
0.09
0.09
0.11
0.15
0.17
0.11
0.05
0.03
0.05
0.1
0.17
0.27
0.38
0.39
0.21
0.05
0.01
0.01

Wind Speed/Direction (mph)

13
14
14
13
13
11
8
9
9
8
8
5
6
7
6
5
8
9
10
11
7
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
91
91
93
95
96
96
94
91
89
86
84
81
78
76
75
75
77
80
83
86
87

Pressure (mb)

1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1017
1017

Ozone (du)

329
329
328
327
327
327
327
326
326
325
325
324
324
323
323
323
324
324
325
327
330
335
338
341

Wednesday 25

Waxing Gibbous 81%

15:00

04:26

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

Sun - Rise: 05:58, Set: 20:25, Transit: 13:11. Moon - Rise: 15:00, Set: 04:26. Civil Dark: 21:01 - 05:22. Nautical Dark: 21:47 - 04:36. Astro Dark: 22:41 - 03:42

Total Clouds (% Sky Obscured)

100
38
7
14
31
43
59
49
15
32
46
47
40
41
30
45
43
56
65
45
45
45
45
45

Low Clouds (% Sky Obscured)

94
32
6
14
28
38
56
45
14
25
36
19
20
27
18
23
29
27
27
37
37
37
37
37

Medium Clouds (% Sky Obscured)

100
33
2
0
9
13
15
20
5
20
35
44
37
34
23
44
35
48
60
23
23
23
23
23

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
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
None
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
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

Precipitation Probability (%)

5
5
6
6
6
6
5
4
0
3
3
4
5
6
6
5
6
7
9
10
11
13
14
15

Precipitation Amount (mm)

0.02
0.03
0.03
0.03
0.03
0.02
0.01
0.01
0
0.01
0.02
0.03
0.06
0.08
0.06
0.05
0.04
0.05
0.07
0.1
0.09
0.09
0.08
0.09

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
6
6
6
5
5
5
8
11
12
13
14
14
14
14
13
13
12
12
11
10
7
6

Dew Point (°C)

7
7
7
6
6
6
6
6
7
7
8
8
8
8
8
8
8
8
8
7
7
7
7
7

Relative Humidity (%)

88
88
88
87
89
91
94
93
88
79
74
70
68
67
67
68
69
71
73
76
78
81
84
86

Pressure (mb)

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

Ozone (du)

344
347
349
352
353
353
353
352
351
349
348
348
349
351
352
354
356
357
357
358
360
362
365
368

Thursday 26

Waxing Gibbous 89%

16:14

04:54

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

Sun - Rise: 05:56, Set: 20:27, Transit: 13:11. Moon - Rise: 16:14, Set: 04:54. Civil Dark: 21:03 - 05:20. Nautical Dark: 21:50 - 04:33. Astro Dark: 22:44 - 03:38

Total Clouds (% Sky Obscured)

45
12
12
12
12
12
12
24
24
24
24
24
24
97
97
97
97
97
97
49
49
49
49
49

Low Clouds (% Sky Obscured)

37
12
12
12
12
12
12
23
23
23
23
23
23
21
21
21
21
21
21
16
16
16
16
16

Medium Clouds (% Sky Obscured)

23
1
1
1
1
1
1
9
9
9
9
9
9
24
24
24
24
24
24
7
7
7
7
7

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
95
95
95
95
95
95
42
42
42
42
42

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

Precipitation Probability (%)

19
21
18
11
0
0
0
0
0
0
0
0
0
4
3
3
3
3
3
4
0
0
0
0

Precipitation Amount (mm)

0.25
0.38
0.23
0.04
0
0
0
0
0
0
0
0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
88
87
87
89
89
87
82
77
72
68
65
62
59
59
59
60
62
64
68
73
78
81

Pressure (mb)

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

Ozone (du)

371
374
378
382
384
384
381
379
378
377
377
378
380
381
381
380
379
378
376
374
373
373
372
372

Friday 27

Waxing Gibbous 95%

17:28

05:19

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

Sun - Rise: 05:54, Set: 20:28, Transit: 13:11. Moon - Rise: 17:28, Set: 05:19. Civil Dark: 21:05 - 05:17. Nautical Dark: 21:52 - 04:31. Astro Dark: 22:47 - 03:35

Total Clouds (% Sky Obscured)

49
81
81
81
81
81
81
0
0
0
0
0
0
75
75
75
75
75
75
99
99
99
99
99

Low Clouds (% Sky Obscured)

16
18
18
18
18
18
18
0
0
0
0
0
0
61
61
61
61
61
61
11
11
11
11
11

Medium Clouds (% Sky Obscured)

7
0
0
0
0
0
0
0
0
0
0
0
0
44
44
44
44
44
44
38
38
38
38
38

High Clouds (% Sky Obscured)

42
77
77
77
77
77
77
0
0
0
0
0
0
0
0
0
0
0
0
99
99
99
99
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
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
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
6
7
7
6
6
7
8
9
9
9
9
9
9
8
7
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.01
0.02
0.03
0.02
0.02
0.04
0.05
0.08
0.09
0.09
0.08
0.07
0.04
0.02
0.01
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
2
2
1
1
2
3
5
7
10
11
11
11
11
11
11
11
11
10
8
7
5
5

Dew Point (°C)

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

Relative Humidity (%)

84
86
90
93
95
94
93
88
82
75
70
67
66
66
66
66
66
67
68
69
70
72
74
76

Pressure (mb)

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

Ozone (du)

372
372
371
371
370
369
369
370
370
372
373
373
374
374
375
376
376
377
377
378
379
382
383
384

Saturday 28

Waxing Gibbous 97%

18:40

05:43

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: 05:52, Set: 20:30, Transit: 13:11. Moon - Rise: 18:40, Set: 05:43. Civil Dark: 21:07 - 05:15. Nautical Dark: 21:54 - 04:28. Astro Dark: 22:50 - 03:32

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
98
98
98
98
98
98
99
99
99
99
99
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

11
0
0
0
0
0
0
0
0
0
0
0
0
6
6
6
6
6
6
3
3
3
3
3

Medium Clouds (% Sky Obscured)

38
100
100
100
100
100
100
83
83
83
83
83
83
93
93
93
93
93
93
98
98
98
98
98

High Clouds (% Sky Obscured)

99
98
98
98
98
98
98
92
92
92
92
92
92
98
98
98
98
98
98
99
99
99
99
99

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
9
9
0
0
13
15
17
17
18
19
18
16
16
16
17
16
16
15
15
14

Precipitation Amount (mm)

0
0
0
0
0.01
0.01
0
0
0.02
0.04
0.07
0.09
0.1
0.1
0.08
0.06
0.07
0.14
0.3
0.42
0.39
0.28
0.17
0.08

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
81
83
85
88
88
87
82
78
75
72
69
67
67
67
69
70
74
77
81
85
87
88

Pressure (mb)

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

Ozone (du)

384
385
385
386
386
384
382
380
380
379
379
379
378
379
379
380
381
382
383
383
385
386
388
389

Sunday 29

Waxing Gibbous 99%

19:51

06:07

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: 05:50, Set: 20:31, Transit: 13:11. Moon - Rise: 19:51, Set: 06:07. Civil Dark: 21:08 - 05:13. Nautical Dark: 21:56 - 04:26. Astro Dark: 22:53 - 03:29

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
100

Low Clouds (% Sky Obscured)

3
8
8
8
8
8
8
100
100
100
100
100
100
100
100
100
100
100
100
98
98
98
98
98

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

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
None
None
None
None
None
None
None
Very Light Rain
Very 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

Precipitation Probability (%)

13
0
0
0
0
0
3
3
15
16
17
17
17
17
17
18
18
17
16
15
14
13
12
11

Precipitation Amount (mm)

0.02
0
0
0
0
0
0.01
0.03
0.11
0.38
0.68
0.76
0.71
0.7
0.84
1.03
1.08
0.86
0.55
0.32
0.16
0.06
0.02
0.01

Wind Speed/Direction (mph)

5
6
6
7
8
8
8
9
10
11
12
12
13
13
13
12
12
12
13
13
12
8
13
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
88
91
96
100
100
100
97
91
88
84
82
80
78
75
74
74
75
75
76
77
77
78

Pressure (mb)

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

Ozone (du)

390
391
392
392
393
394
396
397
397
397
397
398
399
401
401
402
403
405
406
408
408
409
409
408

Welcome to Clear Outside

Forecast for FLO HQ, Exeter, Devon, UK (50.70,-3.52)

Generated: 23/04/18 02:27:17. Forecast: 23/04/18 to 29/04/18. Timezone: UTC+1.00