Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waxing Gibbous 100%

19:59

06:30

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 Bad
19 Bad

Sun - Rise: 06:00, Set: 19:38, Transit: 12:49. Moon - Rise: 19:59, Set: 06:30. Civil Dark: 20:07 - 05:30. Nautical Dark: 20:43 - 04:54. Astro Dark: 21:22 - 04:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
98
95
98
91
97
100
98
98
99
100
100
100
100
100
90
38
89
99

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
81
44
33
48
61
100
88
95
98
100
100
100
100
100
30
6
6
2

Medium Clouds (% Sky Obscured)

93
83
5
62
10
0
1
1
0
0
0
0
22
4
0
0
10
0
19
9
27
9
79
84

High Clouds (% Sky Obscured)

86
31
56
81
73
90
93
92
96
85
92
93
95
79
63
65
91
13
13
68
86
33
85
98

ISS Passover

Visibility (miles)

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

Fog (%)

-
0
0
0
100
100
0
0
0
0
0
100
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
7
5
10
3
2
1
0
2
0
2
2
1
2
2
3
3
3
3
3
5
10
14
23

Precipitation Amount (mm)

0
0.02
0.03
0.07
0.02
0.01
0.01
0
0.02
0
0.04
0.04
0.01
0.02
0.04
0.06
0.04
0.02
0.02
0.03
0.07
0.11
0.08
0.13

Wind Speed/Direction (mph)

3
3
6
8
8
8
9
9
10
10
10
10
10
11
11
11
11
12
12
12
12
12
11
11

Chance of Frost

Temperature (°C)

8
9
10
11
11
12
12
12
12
13
13
13
15
16
16
17
18
19
20
21
22
22
22
21

Feels Like (°C)

8
9
8
11
11
12
12
12
12
13
13
13
15
16
16
17
18
19
20
21
22
22
22
21

Dew Point (°C)

6
7
8
9
9
10
10
10
10
10
10
11
12
13
13
13
13
13
13
14
14
14
15
15

Relative Humidity (%)

89
91
90
89
89
88
87
85
84
83
84
86
84
81
78
74
71
68
65
62
61
60
63
70

Pressure (mb)

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

Ozone (du)

323
322
322
321
320
318
318
318
318
318
317
314
312
310
308
306
304
301
298
295
292
290
288
287

Friday 19

Full Moon 99%

19:59

07:01

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

Sun - Rise: 05:58, Set: 19:39, Transit: 12:49. Moon - Rise: 19:59, Set: 07:01. Civil Dark: 20:08 - 05:28. Nautical Dark: 20:44 - 04:52. Astro Dark: 21:23 - 04:12

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)

83
100
100
100
100
100
100
99
99
56
45
45
100
100
83
100
100
59
20
73
20
100
94
23

Medium Clouds (% Sky Obscured)

98
97
65
25
23
18
39
61
97
98
95
72
89
99
56
100
98
97
98
100
86
96
98
86

High Clouds (% Sky Obscured)

100
100
99
99
100
100
88
90
99
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

10
10
8
8
8
8
9
10
10
10
10
10
10
10
9
9
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
Light Rain
Light Rain
Light Rain
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

Precipitation Probability (%)

42
55
54
58
54
45
39
38
39
46
56
70
74
69
50
41
32
21
12
8
7
7
6
6

Precipitation Amount (mm)

0.27
0.45
0.69
0.82
0.62
0.36
0.24
0.18
0.18
0.24
0.43
0.98
1.41
1.06
0.55
0.35
0.27
0.23
0.22
0.2
0.2
0.2
0.18
0.21

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
19
18
18
19
19
19
19
18
18
18
18
17
18
18
19
20
20
20
19
18
18
17

Feels Like (°C)

20
19
19
18
18
19
19
19
19
18
18
18
18
18
18
18
19
20
20
20
19
18
18
17

Dew Point (°C)

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

Relative Humidity (%)

76
79
80
80
80
81
81
81
82
83
85
87
89
90
89
86
80
75
71
72
75
78
77
77

Pressure (mb)

1006
1006
1006
1006
1006
1006
1005
1005
1005
1005
1006
1006
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009
1010

Ozone (du)

286
286
286
286
285
283
282
282
282
283
285
287
289
289
288
288
288
288
288
288
289
289
290
291

Saturday 20

Waning Gibbous 96%

21:11

07:36

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

Sun - Rise: 05:57, Set: 19:40, Transit: 12:48. Moon - Rise: 21:11, Set: 07:36. Civil Dark: 20:09 - 05:27. Nautical Dark: 20:46 - 04:50. Astro Dark: 21:25 - 04:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
95
97
97
97
97
97
97

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
98
31
4
3
84
89
98
91
50
13
1
25
58
58
58
58
58
58

Medium Clouds (% Sky Obscured)

53
9
55
72
95
92
67
84
98
100
88
34
16
2
2
1
6
1
21
21
21
21
21
21

High Clouds (% Sky Obscured)

100
100
74
100
100
100
97
100
100
100
100
98
100
95
100
100
96
94
92
92
92
92
92
92

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

0.28
0.29
0.28
0.28
0.2
0.11
0.07
0.06
0.08
0.11
0.1
0.07
0.04
0.03
0.02
0.02
0.02
0.01
0.02
0.02
0.01
0.01
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
15
15
14
14
13
13
12
12
11
11
11
12
13
14
15
16
18
19
20
21
20
18

Feels Like (°C)

17
16
15
15
14
14
13
13
12
12
11
11
11
12
13
14
15
16
18
19
20
21
20
18

Dew Point (°C)

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

Relative Humidity (%)

77
77
77
78
78
80
80
81
82
84
86
88
87
84
80
75
70
63
57
52
48
46
47
51

Pressure (mb)

1010
1011
1012
1012
1013
1013
1013
1013
1013
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017

Ozone (du)

292
293
294
295
296
296
296
298
301
304
307
310
313
318
323
326
327
327
326
324
321
319
319
320

Sunday 21

Waning Gibbous 90%

22:20

08:14

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

Sun - Rise: 05:55, Set: 19:41, Transit: 12:48. Moon - Rise: 22:20, Set: 08:14. Civil Dark: 20:10 - 05:25. Nautical Dark: 20:47 - 04:48. Astro Dark: 21:27 - 04:08

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
13
13
13
13
13
13
100
100
100
100
100
100
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
13
13
13
13
13
13
1
1
1
1
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
92
92
92
92
92
92
99
99
99
99
99
99

High Clouds (% Sky Obscured)

100
100
100
100
100
100
13
13
13
13
13
13
100
100
100
100
100
100
2
2
2
2
2
2

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 (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
4
4
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
15
14
13
12
12
11
10
9
8
9
11
12
15
17
20
22
23
23
22
21
19
19
18

Feels Like (°C)

17
15
14
13
12
12
11
10
9
8
9
11
12
15
17
20
22
23
23
22
21
19
19
18

Dew Point (°C)

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

Relative Humidity (%)

56
60
64
68
72
75
77
81
84
86
84
80
73
64
54
48
43
41
40
44
50
56
57
60

Pressure (mb)

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

Ozone (du)

322
324
326
328
330
333
335
336
336
337
339
341
343
344
344
345
346
347
348
350
352
353
354
354

Monday 22

Waning Gibbous 83%

23:25

08:56

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

Sun - Rise: 05:54, Set: 19:42, Transit: 12:48. Moon - Rise: 23:25, Set: 08:56. Civil Dark: 20:12 - 05:23. Nautical Dark: 20:49 - 04:46. Astro Dark: 21:28 - 04:06

Total Clouds (% Sky Obscured)

93
93
93
93
93
93
99
99
99
99
99
99
100
100
100
100
100
100
85
85
85
85
85
85

Low Clouds (% Sky Obscured)

91
91
91
91
91
91
99
99
99
99
99
99
100
100
100
100
100
100
83
83
83
83
83
83

Medium Clouds (% Sky Obscured)

41
41
41
41
41
41
2
2
2
2
2
2
96
96
96
96
96
96
34
34
34
34
34
34

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
88
88
88
88
88
88
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
8

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
100
100
100
100
100
100
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

3
3
2
1
1
0
0
0
2
2
3
3
6
9
14
17
16
16
19
29
40
56
66
75

Precipitation Amount (mm)

0.05
0.04
0.02
0.01
0.01
0
0
0
0.01
0.01
0.01
0.01
0.02
0.06
0.14
0.24
0.31
0.37
0.42
0.45
0.46
0.51
0.67
0.94

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
10
10
9
10
10
11
11
11
11
11
11
11
11
11
11
11
11

Relative Humidity (%)

62
66
70
75
78
80
81
82
85
87
87
86
84
80
75
71
66
62
60
63
66
71
73
77

Pressure (mb)

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

Ozone (du)

352
346
337
329
321
314
308
304
301
299
301
304
306
307
308
308
309
311
312
312
311
312
313
314

Tuesday 23

Waning Gibbous 74%

00:24

09:44

20 Bad
21 Bad
22 Bad
23 Bad
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 OK
15 OK
16 OK
17 OK
18 OK
19 OK

Sun - Rise: 05:52, Set: 19:44, Transit: 12:48. Moon - Rise: 00:24, Set: 09:44. Civil Dark: 20:13 - 05:22. Nautical Dark: 20:50 - 04:44. Astro Dark: 21:30 - 04:04

Total Clouds (% Sky Obscured)

5
5
5
5
5
5
24
24
24
24
24
24
77
77
77
77
77
77
42
42
42
42
42
42

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
12
12
12
12
12
12
20
20
20
20
20
20
41
41
41
41
41
41

Medium Clouds (% Sky Obscured)

4
4
4
4
4
4
19
19
19
19
19
19
20
20
20
20
20
20
31
31
31
31
31
31

High Clouds (% Sky Obscured)

2
2
2
2
2
2
9
9
9
9
9
9
71
71
71
71
71
71
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
6
6
7
7
7
8
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
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
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

82
86
85
79
73
59
43
32
27
20
11
7
6
5
5
3
2
1
1
0
0
0
0
0

Precipitation Amount (mm)

1.17
1.3
1.34
1.23
0.88
0.51
0.3
0.21
0.16
0.12
0.07
0.03
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
13
12
12
10
9
8
8
7
7
7
6
7
8
9
11
12
14
16
17
17
16
15
13

Feels Like (°C)

14
13
12
12
10
8
7
6
5
5
5
4
5
6
8
11
12
14
16
17
17
16
15
13

Dew Point (°C)

10
10
9
8
7
6
5
4
3
3
2
2
2
2
1
1
0
-0
-1
-1
-2
-2
-1
-1

Relative Humidity (%)

80
80
80
80
79
79
78
77
76
75
74
74
71
65
57
50
44
37
32
29
29
30
33
39

Pressure (mb)

1014
1014
1015
1015
1016
1016
1017
1017
1018
1019
1020
1021
1021
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022

Ozone (du)

315
317
319
320
322
323
325
328
332
334
334
332
331
331
332
333
333
334
335
335
335
334
333
331

Wednesday 24

Waning Gibbous 65%

01:17

10:36

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

Sun - Rise: 05:51, Set: 19:45, Transit: 12:48. Moon - Rise: 01:17, Set: 10:36. Civil Dark: 20:14 - 05:20. Nautical Dark: 20:51 - 04:43. Astro Dark: 21:32 - 04:02

Total Clouds (% Sky Obscured)

89
89
89
89
89
89
98
98
98
98
98
98
100
100
100
100
100
100
97
97
97
97
97
97

Low Clouds (% Sky Obscured)

86
86
86
86
86
86
98
98
98
98
98
98
100
100
100
100
100
100
70
70
70
70
70
70

Medium Clouds (% Sky Obscured)

62
62
62
62
62
62
2
2
2
2
2
2
76
76
76
76
76
76
95
95
95
95
95
95

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
52
52
52
52
52
52

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
8
6
4
3
2
1
1
1
1
0
0
1

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
2
5
5
6
6
8
14
24
35
45
47
43
38

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.02
0.04
0.05
0.05
0.08
0.16
0.32
0.48
0.6
0.67
0.69
0.62
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-0
0
0
0
-0
-1
-1
-2
-3
-3
-4
-4
-4
-3
-2
-1
-1
-0
0
0
0
-0
-0
-1

Relative Humidity (%)

45
50
54
59
61
62
61
60
58
56
53
49
46
45
44
44
45
49
53
56
56
55
55
54

Pressure (mb)

1022
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021
1021
1020

Ozone (du)

330
328
327
326
325
325
324
323
322
321
320
320
321
321
322
323
324
327
329
330
331
332
334
337

Forecast for Chester, Windsor County, US (43.26,-72.60)

Generated: 18/04/19 20:31:04. Forecast: 18/04/19 to 24/04/19. Timezone: UTC-4.00