Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waning Gibbous 76%

00:49

09:17

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

Sun - Rise: 05:50, Set: 20:10, Transit: 13:00. Moon - Rise: 00:49, Set: 09:17. Civil Dark: 20:45 - 05:15. Nautical Dark: 21:30 - 04:30. Astro Dark: 22:19 - 03:39

Total Clouds (% Sky Obscured)

77
84
100
95
30
49
52
77
79
86
98
96
90
52
4
9
0
0
2
17
20
13
44
33

Low Clouds (% Sky Obscured)

20
21
16
20
20
22
19
18
32
59
95
91
88
28
1
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

34
80
100
93
11
30
41
71
67
62
23
5
0
0
0
0
0
0
0
2
5
3
8
13

High Clouds (% Sky Obscured)

63
17
13
13
15
25
3
6
12
45
67
66
37
31
3
9
0
0
2
16
17
10
41
23

ISS Passover

Visibility (miles)

6
7
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 (%)

1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
13
13
12
12
12
12
12
13
15
17
18
19
20
22
23
24
25
24
23
22
21

Feels Like (°C)

12
12
12
13
13
12
12
12
12
12
13
15
17
18
19
20
22
23
24
25
24
23
22
21

Dew Point (°C)

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

Relative Humidity (%)

67
67
65
63
64
65
67
69
70
71
70
65
59
55
52
50
47
45
42
41
40
42
45
49

Pressure (mb)

1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

344
344
345
346
347
348
350
352
353
355
357
358
359
361
364
368
370
370
369
367
363
358
353
349

Wednesday 24

Waning Gibbous 67%

01:44

10:08

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

Sun - Rise: 05:48, Set: 20:11, Transit: 13:00. Moon - Rise: 01:44, Set: 10:08. Civil Dark: 20:47 - 05:13. Nautical Dark: 21:32 - 04:28. Astro Dark: 22:21 - 03:36

Total Clouds (% Sky Obscured)

31
85
34
14
34
80
96
90
5
21
53
0
0
0
0
0
0
1
8
13
4
0
0
0

Low 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

Medium Clouds (% Sky Obscured)

13
5
1
0
0
0
0
41
3
0
0
0
0
0
0
0
0
0
7
13
3
0
0
0

High Clouds (% Sky Obscured)

24
84
34
14
34
80
96
83
2
21
53
0
0
0
0
0
0
0
1
1
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
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
17
16
15
14
13
13
13
13
14
16
17
19
20
21
22
23
24
25
25
24
23
21

Feels Like (°C)

19
18
17
16
15
14
13
13
13
13
14
16
17
19
20
21
22
23
24
25
25
24
23
21

Dew Point (°C)

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

Relative Humidity (%)

52
55
56
55
56
62
69
74
76
75
69
62
54
49
47
45
44
42
40
38
37
39
42
47

Pressure (mb)

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

Ozone (du)

344
340
337
335
334
334
335
338
343
349
353
352
349
346
345
345
344
344
344
344
343
343
343
343

Thursday 25

Waning Gibbous 57%

02:30

11:04

22 Good
23 OK
00 Good
01 OK
02 Bad
03 OK
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

Sun - Rise: 05:46, Set: 20:13, Transit: 13:00. Moon - Rise: 02:30, Set: 11:04. Civil Dark: 20:48 - 05:11. Nautical Dark: 21:34 - 04:25. Astro Dark: 22:24 - 03:32

Total Clouds (% Sky Obscured)

14
24
0
24
66
45
73
76
53
94
99
99
97
94
83
88
88
95
99
100
100
99
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
16
16

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
45
63
40
83
70
47
47

High Clouds (% Sky Obscured)

14
24
0
24
66
45
73
76
53
94
99
99
97
94
83
88
88
93
98
100
99
98
100
100

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
4
4
4
4
4

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
8
10
18
32
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.07
0.39
0.76
0.82
0.71
0.7
0.87

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
17
16
15
14
13
12
12
13
15
17
19
21
22
23
24
24
24
23
22
21
19
18

Feels Like (°C)

19
18
17
16
15
14
13
12
12
13
15
17
19
21
22
23
24
24
24
23
22
21
19
18

Dew Point (°C)

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

Relative Humidity (%)

54
60
63
64
65
66
67
67
65
62
57
53
50
47
45
43
41
40
40
40
42
47
54
61

Pressure (mb)

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

Ozone (du)

344
345
346
346
347
346
346
345
345
344
344
343
343
342
342
342
342
342
342
341
341
341
341
341

Friday 26

Waning Gibbous 47%

03:08

12:05

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

Sun - Rise: 05:45, Set: 20:14, Transit: 12:59. Moon - Rise: 03:08, Set: 12:05. Civil Dark: 20:50 - 05:09. Nautical Dark: 21:36 - 04:23. Astro Dark: 22:27 - 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)

16
16
16
16
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
44
44

Medium Clouds (% Sky Obscured)

47
47
47
47
55
55
55
55
55
55
99
99
99
99
99
99
100
100
100
100
100
100
99
99

High 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
84
84

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

57
72
76
77
77
73
72
70
68
71
71
67
60
55
47
39
33
29
28
27
25
22
15
10

Precipitation Amount (mm)

1.14
1.29
1.17
1.01
0.93
0.88
0.92
1.01
1
0.93
0.85
0.77
0.69
0.62
0.52
0.43
0.38
0.41
0.48
0.5
0.39
0.26
0.15
0.07

Wind Speed/Direction (mph)

4
10
12
15
17
9
8
14
13
12
13
12
12
11
10
10
12
11
11
12
11
9
8
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
15
14
13
11
11
10
6
6
6
7
10
11
11
11
12
12
13
14
14
14
13
13
12

Dew Point (°C)

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

Relative Humidity (%)

69
75
78
78
78
78
79
81
83
84
83
81
78
77
77
75
71
67
63
62
61
62
62
64

Pressure (mb)

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

Ozone (du)

341
341
342
343
345
350
356
361
364
366
368
369
369
368
367
366
365
364
363
362
362
361
361
359

Saturday 27

Third Quarter 38%

03:39

13:08

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

Sun - Rise: 05:43, Set: 20:16, Transit: 12:59. Moon - Rise: 03:39, Set: 13:08. Civil Dark: 20:52 - 05:07. Nautical Dark: 21:38 - 04:21. Astro Dark: 22:29 - 03:26

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
91
91
91
91
91
91
93
93
93
93
93
93
100
100

Low Clouds (% Sky Obscured)

44
44
44
44
82
82
82
82
82
82
89
89
89
89
89
89
73
73
73
73
73
73
13
13

Medium Clouds (% Sky Obscured)

99
99
99
99
100
100
100
100
100
100
56
56
56
56
56
56
92
92
92
92
92
92
64
64

High Clouds (% Sky Obscured)

84
84
84
84
73
73
73
73
73
73
23
23
23
23
23
23
0
0
0
0
0
0
100
100

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
None

Precipitation Probability (%)

5
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
2
2
1
1
1
1
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
10
8
7
7
6
5
6
7
8
10
11
11
12
13
14
15
15
16
15
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

67
70
73
76
78
79
81
81
81
80
76
73
70
69
67
63
59
55
51
50
50
50
50
52

Pressure (mb)

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

Ozone (du)

358
356
356
356
356
355
354
353
352
351
350
350
349
349
348
348
347
347
346
346
346
347
347
348

Sunday 28

Waning Crescent 29%

04:05

14:12

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

Sun - Rise: 05:41, Set: 20:17, Transit: 12:59. Moon - Rise: 04:05, Set: 14:12. Civil Dark: 20:54 - 05:05. Nautical Dark: 21:40 - 04:18. Astro Dark: 22:32 - 03:23

Total Clouds (% Sky Obscured)

100
100
100
100
96
96
96
96
96
96
99
99
99
99
99
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

13
13
13
13
0
0
0
0
0
0
2
2
2
2
2
2
66
66
66
66
66
66
80
80

Medium Clouds (% Sky Obscured)

64
64
64
64
0
0
0
0
0
0
91
91
91
91
91
91
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
96
96
96
96
96
96
99
99
99
99
99
99
98
98
98
98
98
98
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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 Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
12
11
10
10
9
9
9
9
10
11
12
13
13
14
15
16
17
18
18
17
16
16
15

Feels Like (°C)

13
12
11
10
10
9
8
8
8
9
11
12
13
13
14
15
16
17
18
18
17
16
16
15

Dew Point (°C)

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

Relative Humidity (%)

55
59
62
65
68
70
72
73
73
72
69
67
64
62
58
54
50
47
45
45
46
49
51
54

Pressure (mb)

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

Ozone (du)

349
350
351
353
354
356
357
358
358
359
359
360
361
363
363
363
363
363
362
361
360
359
357
356

Monday 29

Waning Crescent 20%

04:28

15:17

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

Sun - Rise: 05:39, Set: 20:19, Transit: 12:59. Moon - Rise: 04:28, Set: 15:17. Civil Dark: 20:55 - 05:03. Nautical Dark: 21:42 - 04:16. Astro Dark: 22:35 - 03:20

Total Clouds (% Sky Obscured)

100
100
100
100
67
67
67
67
67
67
5
5
5
5
5
5
0
0
0
0
0
0
77
77

Low Clouds (% Sky Obscured)

80
80
80
80
35
35
35
35
35
35
4
4
4
4
4
4
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

100
100
100
100
59
59
59
59
59
59
2
2
2
2
2
2
0
0
0
0
0
0
71
71

High Clouds (% Sky Obscured)

99
99
99
99
8
8
8
8
8
8
0
0
0
0
0
0
0
0
0
0
0
0
21
21

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
None

Precipitation Probability (%)

0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
12
11
10
10
9
9
10
10
11
12
14
14
15
16
17
18
19
19
18
18
17
16

Feels Like (°C)

14
13
12
11
10
9
8
8
9
10
11
12
14
14
15
16
17
18
19
19
18
18
17
16

Dew Point (°C)

6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

58
63
67
71
73
76
78
77
76
74
71
67
63
59
57
54
50
47
45
44
44
46
47
51

Pressure (mb)

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

Ozone (du)

355
355
355
355
355
355
356
356
356
356
356
356
356
356
355
355
354
353
352
351
351
350
350
350

Forecast for Praha 2, 120 00, Czech Republic (50.08,14.44)

Generated: 23/04/19 22:31:31. Forecast: 23/04/19 to 29/04/19. Timezone: UTC+2.00