Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 19

Waning Crescent 17%

06:32

13:28

09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
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

Sun - Rise: 07:44, Set: 18:00, Transit: 12:53. Moon - Rise: 06:32, Set: 13:28. Civil Dark: 18:35 - 07:10. Nautical Dark: 19:14 - 06:30. Astro Dark: 19:53 - 05:51

Total Clouds (% Sky Obscured)

48
58
74
76
62
53
93
98
84
48
35
100
99
100
100
100
100
100
100
100
100
99
100
99

Low Clouds (% Sky Obscured)

48
57
74
76
62
51
70
80
21
9
29
26
75
98
100
99
88
91
100
100
100
88
100
97

Medium Clouds (% Sky Obscured)

0
2
0
0
0
0
0
0
0
0
5
97
99
100
99
99
98
99
98
87
71
57
31
56

High Clouds (% Sky Obscured)

0
0
0
0
0
6
77
94
81
43
8
98
39
86
81
95
98
99
95
95
96
95
89
74

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

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
Very Light Rain

Precipitation Probability (%)

15
15
11
12
13
0
0
0
0
0
0
4
9
19
24
25
23
18
14
11
8
8
7
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
5
6
6
6
6
6
6
6
5
5
5
5
6
6
6
7
7
7
7
7
7
7
7

Feels Like (°C)

1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

82
81
80
78
76
74
73
73
73
76
79
83
86
88
88
88
87
87
87
87
88
89
89
90

Pressure (mb)

1018
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1016
1016
1015
1015
1014
1014
1014

Ozone (du)

388
375
366
359
353
347
341
337
334
332
331
330
330
329
325
321
316
314
312
311
312
315
317
318

Thursday 20

Waning Crescent 10%

07:11

14:27

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 OK
00 OK
01 Good
02 Good
03 Good
04 OK
05 Good
06 Good
07 OK
08 Good

Sun - Rise: 07:42, Set: 18:02, Transit: 12:53. Moon - Rise: 07:11, Set: 14:27. Civil Dark: 18:36 - 07:08. Nautical Dark: 19:16 - 06:29. Astro Dark: 19:55 - 05:49

Total Clouds (% Sky Obscured)

100
98
95
91
81
100
98
100
100
100
100
100
99
31
16
13
2
2
3
16
7
7
10
2

Low Clouds (% Sky Obscured)

100
80
70
51
63
100
97
100
77
100
96
48
15
12
16
9
2
2
3
4
3
2
2
1

Medium Clouds (% Sky Obscured)

48
96
94
89
71
99
96
95
100
100
100
100
99
27
11
12
0
0
0
0
0
1
0
0

High Clouds (% Sky Obscured)

74
63
0
0
0
0
0
0
0
6
94
100
98
0
0
0
0
0
0
13
4
5
9
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
5
2
5
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
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
None
None
None
None
None
Very Light Rain
None

Precipitation Probability (%)

4
4
4
5
7
6
7
20
46
69
72
64
48
39
27
16
7
0
0
0
0
5
6
4

Precipitation Amount (mm)

0.02
0.02
0.02
0.04
0.06
0.07
0.08
0.13
0.36
0.93
1.37
1.13
0.69
0.44
0.23
0.07
0.02
0
0
0
0
0.01
0.02
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
4
4
5
6
10
10
5
4
2
2
1
1
1
0
0
0
0
0
0
1
1
1

Dew Point (°C)

6
6
5
5
5
5
6
6
6
6
6
5
3
2
1
1
0
0
0
1
1
1
2
2

Relative Humidity (%)

90
89
86
82
78
76
74
75
78
87
91
89
79
74
73
74
74
74
74
75
76
78
79
81

Pressure (mb)

1014
1013
1013
1012
1011
1010
1009
1008
1007
1007
1007
1009
1011
1014
1015
1017
1018
1019
1020
1021
1022
1023
1024
1025

Ozone (du)

318
317
316
313
312
311
310
312
315
319
328
345
366
384
395
404
408
404
396
388
381
374
367
361

Friday 21

Waning Crescent 5%

07:42

15:32

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:40, Set: 18:04, Transit: 12:53. Moon - Rise: 07:42, Set: 15:32. Civil Dark: 18:38 - 07:06. Nautical Dark: 19:17 - 06:27. Astro Dark: 19:57 - 05:47

Total Clouds (% Sky Obscured)

27
61
84
98
98
98
98
98
98
98
99
99
99
99
99
99
97
97
97
97
97
97
100
100

Low Clouds (% Sky Obscured)

2
6
78
98
75
75
75
75
75
75
65
65
65
65
65
65
76
76
76
76
76
76
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
89
89
89
89
89
89
13
13
13
13
13
13
64
64
64
64
64
64
100
100

High Clouds (% Sky Obscured)

25
59
26
1
85
85
85
85
85
85
98
98
98
98
98
98
84
84
84
84
84
84
95
95

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
3
3
3
3
3
3
3
3
4
4
4
3
3
3
3
3
3
3
3
3
4
4

Relative Humidity (%)

80
79
77
75
73
70
68
67
67
68
71
72
72
72
71
71
71
72
74
75
75
74
75
77

Pressure (mb)

1025
1025
1026
1026
1026
1026
1025
1025
1025
1025
1025
1024
1023
1023
1022
1022
1022
1021
1020
1019
1019
1019
1019
1019

Ozone (du)

356
352
350
348
347
345
344
343
342
341
341
343
345
346
347
348
348
346
344
340
336
330
326
325

Saturday 22

Waning Crescent 1%

08:06

16:40

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:38, Set: 18:06, Transit: 12:53. Moon - Rise: 08:06, Set: 16:40. Civil Dark: 18:40 - 07:04. Nautical Dark: 19:19 - 06:25. Astro Dark: 19:58 - 05:45

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
96
96
96
96
96
96
80
80
80
80
80
80
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
13
13
13
13
13
13
18
18
18
18
18
18
2
2

Medium Clouds (% Sky Obscured)

100
100
100
100
27
27
27
27
27
27
91
91
91
91
91
91
31
31
31
31
31
31
100
100

High Clouds (% Sky Obscured)

95
95
95
95
42
42
42
42
42
42
70
70
70
70
70
70
71
71
71
71
71
71
74
74

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
8
5
3

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
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 (%)

3
3
4
4
4
3
0
0
0
3
4
7
14
17
20
20
22
33
49
61
67
73
77
79

Precipitation Amount (mm)

0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0.01
0.03
0.08
0.2
0.33
0.36
0.32
0.36
0.63
1.1
1.46
1.45
1.35
1.29
1.2

Wind Speed/Direction (mph)

25
25
26
26
26
25
24
22
21
20
20
19
18
18
18
19
19
17
15
14
16
19
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
79
77
74
72
71
71
70
69
70
72
74
76
77
78
79
81
83
85
88
91
94
97

Pressure (mb)

1019
1019
1019
1020
1020
1020
1019
1019
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1019
1017
1016
1014
1014

Ozone (du)

325
324
323
321
321
322
325
328
331
335
337
338
337
337
340
343
346
348
348
348
346
344
342
343

Sunday 23

New Moon 0%

08:26

17:48

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:36, Set: 18:07, Transit: 12:53. Moon - Rise: 08:26, Set: 17:48. Civil Dark: 18:42 - 07:02. Nautical Dark: 19:21 - 06:23. Astro Dark: 20:00 - 05:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
98
98
98
98
98
94
94
94
94
94
94
73
73

Low Clouds (% Sky Obscured)

2
2
2
2
99
99
99
99
99
99
48
48
48
48
48
48
45
45
45
45
45
45
73
73

Medium Clouds (% Sky Obscured)

100
100
100
100
98
98
98
98
98
98
11
11
11
11
11
11
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

74
74
74
74
98
98
98
98
98
98
95
95
95
95
95
95
86
86
86
86
86
86
0
0

ISS Passover

Visibility (miles)

2
2
5
9
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
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

80
81
80
79
78
72
55
43
38
34
26
22
16
8
2
1
0
0
0
0
3
5
7
7

Precipitation Amount (mm)

1.19
1.29
1.44
1.69
1.72
1.15
0.51
0.24
0.17
0.16
0.15
0.1
0.05
0.03
0.01
0.01
0
0
0
0
0.01
0.04
0.08
0.09

Wind Speed/Direction (mph)

22
22
24
26
27
26
24
22
21
20
18
16
14
12
11
10
9
8
7
7
7
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

97
97
93
88
85
84
84
85
85
84
82
79
76
74
73
74
76
78
81
85
88
91
93
94

Pressure (mb)

1013
1012
1012
1012
1012
1013
1013
1014
1015
1017
1019
1020
1022
1023
1024
1025
1025
1025
1025
1025
1025
1025
1024
1023

Ozone (du)

344
346
345
345
347
351
358
364
369
374
376
376
374
371
367
362
359
358
360
361
359
357
356
355

Monday 24

Waxing Crescent 1%

08:44

18:56

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

Sun - Rise: 07:34, Set: 18:09, Transit: 12:53. Moon - Rise: 08:44, Set: 18:56. Civil Dark: 18:43 - 07:00. Nautical Dark: 19:23 - 06:20. Astro Dark: 20:02 - 05:41

Total Clouds (% Sky Obscured)

73
73
73
73
29
29
29
29
29
29
18
18
18
18
18
18
13
13
13
13
13
13
99
99

Low Clouds (% Sky Obscured)

73
73
73
73
29
29
29
29
29
29
17
17
17
17
17
17
12
12
12
12
12
12
93
93

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
4
4

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
89
89

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
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
Light Rain
Light Rain

Precipitation Probability (%)

7
8
7
5
0
0
0
0
3
3
6
10
17
25
27
20
25
24
18
15
23
47
59
64

Precipitation Amount (mm)

0.09
0.08
0.04
0.01
0
0
0
0
0.01
0.03
0.04
0.04
0.09
0.16
0.17
0.18
0.2
0.15
0.09
0.06
0.1
0.23
0.41
0.55

Wind Speed/Direction (mph)

12
14
16
17
19
19
20
20
20
21
21
21
21
21
21
21
21
21
20
19
18
18
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
5
6
10
10
6
6
6
6
6
6
6
10
10
11
11
11
11
10
6
5
4
4

Dew Point (°C)

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

Relative Humidity (%)

94
90
86
81
77
73
72
73
73
74
75
77
81
84
84
84
82
81
79
79
80
83
86
87

Pressure (mb)

1022
1022
1021
1020
1018
1017
1016
1015
1014
1014
1013
1012
1011
1010
1009
1008
1007
1007
1006
1005
1005
1004
1003
1003

Ozone (du)

355
354
352
349
347
346
347
347
348
349
350
350
350
350
348
346
344
342
341
341
342
344
346
347

Tuesday 25

Waxing Crescent 4%

09:00

20:03

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:32, Set: 18:11, Transit: 12:52. Moon - Rise: 09:00, Set: 20:03. Civil Dark: 18:45 - 06:58. Nautical Dark: 19:24 - 06:18. Astro Dark: 20:04 - 05:39

Total Clouds (% Sky Obscured)

99
99
99
99
94
94
94
94
94
94
23
23
23
23
23
23
95
95
95
95
95
95
88
88

Low Clouds (% Sky Obscured)

93
93
93
93
77
77
77
77
77
77
23
23
23
23
23
23
40
40
40
40
40
40
36
36

Medium Clouds (% Sky Obscured)

4
4
4
4
85
85
85
85
85
85
5
5
5
5
5
5
86
86
86
86
86
86
56
56

High Clouds (% Sky Obscured)

89
89
89
89
0
0
0
0
0
0
0
0
0
0
0
0
86
86
86
86
86
86
76
76

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
7
4
6
10
10
10
10
10
10
6
4
7
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very 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 (%)

60
50
33
18
13
0
0
0
0
13
18
25
39
40
35
29
25
25
23
24
28
32
32
27

Precipitation Amount (mm)

0.65
0.62
0.37
0.12
0.02
0
0
0
0
0.01
0.04
0.12
0.29
0.44
0.42
0.31
0.23
0.16
0.11
0.11
0.15
0.21
0.23
0.16

Wind Speed/Direction (mph)

16
16
17
19
20
21
21
20
19
18
17
17
18
19
19
19
19
20
20
20
20
19
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
3
4
4
5
5
4
4
3
3
2
2
1
1
0
-0
-1
-1
-1
-1
-1
-1
-1

Dew Point (°C)

5
4
3
3
2
2
2
1
1
1
1
0
-0
-1
-1
-2
-2
-1
-1
-1
-1
-1
-0
-0

Relative Humidity (%)

87
83
77
70
65
62
61
62
64
65
66
65
64
63
62
62
63
65
68
70
71
72
72
72

Pressure (mb)

1003
1003
1002
1002
1002
1002
1001
1001
1001
1000
1000
1000
1000
1000
1001
1001
1001
1001
1001
1001
1001
1001
1002
1002

Ozone (du)

348
349
352
357
362
368
375
381
386
390
395
403
411
417
417
414
411
409
406
406
411
418
423
426

Forecast for Utrecht, Utrecht, NL (52.08,5.03)

Generated: 19/02/20 09:33:59. Forecast: 19/02/20 to 25/02/20. Timezone: UTC+1.00