Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 31%

10:25

23:57

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

Sun - Rise: 05:49, Set: 18:51, Transit: 12:20. Moon - Rise: 10:25, Set: 23:57. Civil Dark: 19:15 - 05:26. Nautical Dark: 19:42 - 04:58. Astro Dark: 20:11 - 04:30

Total Clouds (% Sky Obscured)

36
2
1
1
37
2
2
5
8
17
20
13
26
32
32
45
38
61
13
14
9
5
9
7

Low Clouds (% Sky Obscured)

2
2
1
1
2
2
2
5
8
17
20
11
1
0
3
8
3
47
2
2
1
1
3
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
1
1
5
26
32
32
44
38
25
13
13
6
4
5
4

High Clouds (% Sky Obscured)

34
0
0
0
36
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
0
2
0

7Timer Cloud Cover

20
20
20
10
10
10
10
10
10
10
10
10
10
10
10
60
60
60
30
30
30
10
10
10

Alternative Forecast % Cloud Cover

19
24
38
32
28
31
33
30
31
39
47
54
51
44
35
27
25
25
25
13
11
12
20
26

7Timer Seeing

80
80
80
80
80
80
80
80
80
80
80
80
60
60
60
60
60
60
60
60
60
60
60
60

7Timer Lifted Index

-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10

7Timer Transparency

40
40
40
50
50
50
60
60
60
50
50
50
40
40
40
30
30
30
30
30
30
30
30
30

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 (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
24
24
24
23
24
25
27
28
29
30
30
31
31
31
31
30
29
27
26
26
26
25

Feels Like (°C)

26
25
25
25
24
24
25
26
29
32
34
35
35
36
37
36
36
34
33
30
29
28
26
26

Dew Point (°C)

22
22
22
22
22
22
23
24
24
25
25
25
24
24
24
23
23
23
23
23
23
23
23
23

Relative Humidity (%)

86
87
88
90
92
93
94
92
87
83
78
76
72
67
65
62
63
66
70
76
81
83
86
88

Pressure (mb)

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

Ozone (du)

277
277
277
277
276
276
276
277
277
277
278
278
278
277
275
275
275
275
275
275
276
276
277
277

Tuesday 18

Waxing Crescent 41%

11:20

No Set

00 OK
01 OK
02 Good
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK
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: 05:49, Set: 18:52, Transit: 12:20. Moon - Rise: 11:20, Set: No Set. Civil Dark: 19:15 - 05:25. Nautical Dark: 19:43 - 04:58. Astro Dark: 20:11 - 04:29

Total Clouds (% Sky Obscured)

9
12
6
8
52
69
55
57
39
29
48
67
65
85
88
61
93
84
72
73
67
72
73
67

Low Clouds (% Sky Obscured)

7
9
6
8
11
13
15
16
16
14
13
15
14
13
17
22
27
24
21
17
16
9
8
7

Medium Clouds (% Sky Obscured)

2
1
1
1
9
18
9
8
11
11
14
19
23
25
32
39
44
41
40
55
22
6
5
6

High Clouds (% Sky Obscured)

0
2
0
0
46
61
49
48
27
16
38
60
56
81
85
46
89
77
59
59
59
70
72
65

7Timer Cloud Cover

10
10
10
10
10
10
30
30
30
40
40
40
60
60
60
90
90
90
70
70
70
30
30
30

Alternative Forecast % Cloud Cover

32
32
35
36
42
49
55
59
56
56
49
45
43
44
46
39
35
33
34
40
38
24
34
40

7Timer Seeing

80
80
80
80
80
80
80
80
80
70
70
70
60
60
60
60
60
60
60
60
60
60
60
60

7Timer Lifted Index

-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-40
-40
-40
-10
-10
-10

7Timer Transparency

40
40
40
50
50
50
40
40
40
40
40
40
30
30
30
30
30
30
30
30
30
40
40
40

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 (%)

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

Precipitation Amount (mm)

0.01
0.03
0.04
0.05
0.07
0.07
0.05
0.03
0.02
0.01
0.01
0.01
0.04
0.07
0.11
0.1
0.07
0.09
0.07
0.03
0.02
0.02
0.03
0.04

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
24
24
24
24
24
25
27
28
29
30
30
30
30
30
30
29
28
27
26
26
26
25

Feels Like (°C)

26
25
25
25
25
25
25
26
30
32
35
36
36
36
36
36
35
34
32
30
29
28
26
26

Dew Point (°C)

23
23
23
23
23
23
24
24
25
25
24
24
24
25
25
25
25
24
24
24
24
23
23
23

Relative Humidity (%)

89
90
91
93
94
95
95
92
88
81
75
70
69
72
75
75
75
76
79
83
86
87
88
89

Pressure (mb)

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

Ozone (du)

277
278
277
277
277
277
278
279
279
279
280
281
280
280
279
279
278
278
278
278
280
281
282
282

Wednesday 19

First Quarter 52%

12:16

00:42

00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 OK
06 OK
07 OK
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: 05:49, Set: 18:52, Transit: 12:20. Moon - Rise: 12:16, Set: 00:42. Civil Dark: 19:16 - 05:25. Nautical Dark: 19:43 - 04:57. Astro Dark: 20:12 - 04:29

Total Clouds (% Sky Obscured)

80
71
40
33
30
23
9
13
76
83
84
87
85
87
81
81
81
81
81
81
64
64
64
64

Low Clouds (% Sky Obscured)

9
11
9
7
7
6
6
7
6
16
14
13
16
15
48
48
48
48
48
48
10
10
10
10

Medium Clouds (% Sky Obscured)

9
13
9
10
11
9
6
4
3
10
23
29
36
43
42
42
42
42
42
42
17
17
17
17

High Clouds (% Sky Obscured)

77
66
32
23
19
12
0
5
74
80
81
82
77
81
73
73
73
73
73
73
60
60
60
60

7Timer Cloud Cover

40
40
40
20
20
20
30
30
30
90
90
90
60
60
60
40
40
40
50
50
50

Alternative Forecast % Cloud Cover

53
57
64
74
71
73
73
61
60
60
73
75
73
79
83
82
83
79
75
70
67
51
44
43

7Timer Seeing

80
80
80
80
80
80
80
80
80
80
80
80
60
60
60
60
60
60
60
60
60

7Timer Lifted Index

-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-10
-40
-40
-40

7Timer Transparency

40
40
40
50
50
50
50
50
50
60
60
60
40
40
40
30
30
30
30
30
30

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
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
Light Rain
Light Rain

Precipitation Probability (%)

7
10
11
11
10
9
8
7
6
4
3
3
3
4
7
9
11
11
10
9
9
15
21
24

Precipitation Amount (mm)

0.07
0.24
0.37
0.28
0.22
0.26
0.2
0.1
0.06
0.04
0.05
0.07
0.08
0.1
0.29
0.35
0.32
0.33
0.31
0.23
0.16
0.38
0.98
1.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
25
24
24
24
24
24
25
27
28
29
30
30
30
30
30
29
29
28
27
26
25
25
25

Feels Like (°C)

26
26
25
25
25
25
25
26
30
32
34
36
36
37
36
36
35
34
32
30
28
26
26
26

Dew Point (°C)

23
23
23
23
23
23
24
25
25
25
25
25
25
25
25
25
25
25
25
24
24
24
24
24

Relative Humidity (%)

91
92
93
95
96
97
97
96
91
87
82
78
75
75
76
77
79
80
83
87
90
92
94
95

Pressure (mb)

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

Ozone (du)

282
281
281
282
282
283
283
283
282
282
283
284
284
283
283
282
281
280
281
281
283
283
283
281

Thursday 20

Waxing Gibbous 63%

13:13

01:25

00 Bad
01 Bad
02 OK
03 Good
04 Good
05 Good
06 Good
07 Good
08 OK
09 OK
10 OK
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: 05:48, Set: 18:52, Transit: 12:20. Moon - Rise: 13:13, Set: 01:25. Civil Dark: 19:16 - 05:25. Nautical Dark: 19:44 - 04:57. Astro Dark: 20:13 - 04:28

Total Clouds (% Sky Obscured)

64
64
6
6
6
6
6
6
32
32
32
32
32
32
93
93
93
93
93
93
97
97
97
97

Low Clouds (% Sky Obscured)

10
10
5
5
5
5
5
5
32
32
32
32
32
32
5
5
5
5
5
5
13
13
13
13

Medium Clouds (% Sky Obscured)

17
17
2
2
2
2
2
2
2
2
2
2
2
2
39
39
39
39
39
39
48
48
48
48

High Clouds (% Sky Obscured)

60
60
2
2
2
2
2
2
0
0
0
0
0
0
85
85
85
85
85
85
95
95
95
95

7Timer Cloud Cover

Alternative Forecast % Cloud Cover

44
46
43
44
50
52
51
52
44
41
62
68
74
71
66
71
61
66
64
66
64
85
91
91

7Timer Seeing

7Timer Lifted Index

7Timer Transparency

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

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
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 (%)

22
15
10
8
7
7
6
6
6
4
4
5
5
3
5
7
8
9
10
13
13
15
16
16

Precipitation Amount (mm)

1.04
0.38
0.16
0.09
0.05
0.06
0.04
0.04
0.03
0.02
0.08
0.12
0.07
0.02
0.07
0.08
0.08
0.09
0.17
0.3
0.21
0.29
0.34
0.35

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
24
24
24
24
24
25
27
28
29
30
30
31
30
30
29
29
27
26
25
25
25
25

Feels Like (°C)

25
25
25
25
25
25
25
27
30
33
34
36
36
36
35
35
35
33
31
28
26
26
26
26

Dew Point (°C)

24
24
23
23
23
24
24
25
25
25
25
25
24
24
24
24
24
24
24
24
24
24
23
23

Relative Humidity (%)

96
96
96
97
98
98
97
96
92
84
78
73
69
68
70
72
75
78
82
88
91
92
92
93

Pressure (mb)

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

Ozone (du)

281
281
280
280
280
279
279
280
280
280
281
282
281
280
279
278
277
277
277
278
277
278
277
277

Friday 21

Waxing Gibbous 74%

14:10

02:06

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: 05:48, Set: 18:53, Transit: 12:20. Moon - Rise: 14:10, Set: 02:06. Civil Dark: 19:16 - 05:25. Nautical Dark: 19:44 - 04:57. Astro Dark: 20:13 - 04:28

Total Clouds (% Sky Obscured)

97
97
51
51
51
51
51
51
73
73
73
73
73
73
85
85
85
85
85
85
56
56
56
56

Low Clouds (% Sky Obscured)

13
13
5
5
5
5
5
5
5
5
5
5
5
5
22
22
22
22
22
22
11
11
11
11

Medium Clouds (% Sky Obscured)

48
48
29
29
29
29
29
29
69
69
69
69
69
69
73
73
73
73
73
73
6
6
6
6

High Clouds (% Sky Obscured)

95
95
48
48
48
48
48
48
21
21
21
21
21
21
73
73
73
73
73
73
50
50
50
50

7Timer Cloud Cover

Alternative Forecast % Cloud Cover

93
94
93
96
96
92
92
90
90
99
99
99
99
98
97
98
99
99
99
100
100
100
100
100

7Timer Seeing

7Timer Lifted Index

7Timer Transparency

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

Precipitation Probability (%)

14
12
13
13
15
16
13
9
7
6
6
6
9
6
5
4
4
5
0
0
0
0
6
7

Precipitation Amount (mm)

0.24
0.14
0.14
0.11
0.14
0.14
0.1
0.07
0.06
0.05
0.04
0.04
0.05
0.04
0.03
0.02
0.01
0.01
0
0
0
0
0.01
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

24
24
24
24
24
24
25
26
27
27
28
29
29
30
30
30
30
29
28
27
26
26
26
26

Feels Like (°C)

25
25
25
25
25
25
26
27
30
32
33
34
35
36
36
36
35
34
32
30
29
28
28
28

Dew Point (°C)

24
24
24
24
24
24
24
25
25
25
25
25
25
25
25
25
24
24
24
24
24
24
24
24

Relative Humidity (%)

94
95
96
98
99
99
98
95
90
87
85
83
80
75
74
72
71
73
76
80
84
86
86
88

Pressure (mb)

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

Ozone (du)

277
278
277
278
278
279
279
281
281
281
280
280
279
278
277
276
277
277
277
278
278
278
279
279

Saturday 22

Waxing Gibbous 84%

15:08

02:46

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

Sun - Rise: 05:48, Set: 18:53, Transit: 12:21. Moon - Rise: 15:08, Set: 02:46. Civil Dark: 19:17 - 05:24. Nautical Dark: 19:45 - 04:56. Astro Dark: 20:14 - 04:28

Total Clouds (% Sky Obscured)

56
56
60
60
60
60
60
60
13
13
13
13
13
13
65
65
65
65
65
65
38
38
38
38

Low Clouds (% Sky Obscured)

11
11
13
13
13
13
13
13
9
9
9
9
9
9
34
34
34
34
34
34
16
16
16
16

Medium Clouds (% Sky Obscured)

6
6
21
21
21
21
21
21
3
3
3
3
3
3
19
19
19
19
19
19
10
10
10
10

High Clouds (% Sky Obscured)

50
50
49
49
49
49
49
49
2
2
2
2
2
2
56
56
56
56
56
56
27
27
27
27

7Timer Cloud Cover

Alternative Forecast % Cloud Cover

99
97
96
96
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99

7Timer Seeing

7Timer Lifted Index

7Timer Transparency

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
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

Precipitation Probability (%)

7
8
8
7
7
6
5
2
0
0
0
4
4
7
8
9
9
8
7
6
6
6
7
7

Precipitation Amount (mm)

0.04
0.07
0.09
0.08
0.06
0.04
0.02
0.01
0
0
0
0.01
0.02
0.06
0.11
0.12
0.11
0.1
0.09
0.07
0.06
0.07
0.08
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

26
25
25
25
25
25
25
26
27
28
29
30
30
30
29
29
29
29
28
27
26
26
25
25

Feels Like (°C)

27
26
26
26
26
26
26
29
31
33
35
37
37
37
36
35
35
34
32
31
29
28
26
26

Dew Point (°C)

24
24
24
24
24
24
24
25
25
25
25
25
26
26
26
26
25
25
25
25
24
24
24
24

Relative Humidity (%)

91
93
94
95
97
96
95
91
87
84
79
76
78
81
82
82
80
81
82
86
89
91
93
96

Pressure (mb)

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

Ozone (du)

279
278
278
279
279
280
280
279
279
280
282
282
281
280
279
278
277
277
277
278
278
278
278
277

Sunday 23

Waxing Gibbous 92%

16:07

03:27

Sun - Rise: 05:48, Set: 18:54, Transit: 12:21. Moon - Rise: 16:07, Set: 03:27. Civil Dark: 19:17 - 05:24. Nautical Dark: 19:45 - 04:56. Astro Dark: 20:14 - 04:27

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

7Timer Cloud Cover

Alternative Forecast % Cloud Cover

7Timer Seeing

7Timer Lifted Index

7Timer Transparency

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for San Juan, El Cinco, PR (18.40,-66.07)

Generated: 16/05/21 23:46:22. Forecast: 17/05/21 to 23/05/21. Timezone: UTC-4.00