Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waning Gibbous 91%

20:00

08:42

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
09 Bad
10 Bad

Sun - Rise: 06:59, Set: 17:30, Transit: 12:15. Moon - Rise: 20:00, Set: 08:42. Civil Dark: 18:03 - 06:26. Nautical Dark: 18:41 - 05:48. Astro Dark: 19:18 - 05:11

Total Clouds (% Sky Obscured)

100
95
100
99
100
100
98
100
89
97
70
100
100
91
94
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

0
0
56
15
17
2
59
77
48
90
58
100
100
87
83
100
100
100
99
100
100
100
100
99

Medium Clouds (% Sky Obscured)

100
91
99
88
99
99
6
55
48
95
64
94
80
66
83
98
100
95
88
79
73
44
97
41

High Clouds (% Sky Obscured)

1
89
95
98
99
99
96
99
73
0
3
0
0
0
2
1
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

4
6
10
12
11
11
9
7
7
9
12
18
32
44
49
50
49
46
44
41
31
16
10
9

Precipitation Amount (mm)

0.01
0.07
0.13
0.15
0.15
0.14
0.08
0.02
0.01
0.02
0.04
0.1
0.19
0.35
0.48
0.49
0.44
0.38
0.28
0.18
0.12
0.07
0.04
0.04

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
8
8
9
9
9
9
8
8
8
8
7
7
7
7
8
8
8
8
7
7
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
70
71
71
71
71
72
72
73
74
75
76
78
80
82
83
84
85
86
87
88
89
87
85

Pressure (mb)

1027
1026
1026
1026
1026
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1026
1026
1027
1028
1029
1030

Ozone (du)

327
329
332
335
337
340
344
347
349
350
351
351
351
350
349
347
345
342
336
329
323
321
321
321

Friday 22

Waning Gibbous 84%

21:20

09:07

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

Sun - Rise: 06:57, Set: 17:32, Transit: 12:15. Moon - Rise: 21:20, Set: 09:07. Civil Dark: 18:05 - 06:24. Nautical Dark: 18:42 - 05:46. Astro Dark: 19:20 - 05:09

Total Clouds (% Sky Obscured)

98
97
96
100
100
98
89
82
100
95
1
0
0
0
0
0
0
0
0
24
17
0
14
24

Low Clouds (% Sky Obscured)

98
97
96
100
100
98
89
82
36
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

34
48
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
100
95
1
0
0
0
0
0
0
0
0
24
17
0
14
24

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 (%)

9
8
7
6
5
5
4
3
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
12
11
10
10
9
8
7
7
7
7
7
7
7
7
6
6
5
4
4
3
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
2
1
1
-0
-1
-2
-3
-4
-4
-5
-6
-7
-8
-9
-10
-10
-11
-11
-11
-11
-12
-12

Relative Humidity (%)

84
83
80
77
74
71
68
66
66
65
65
64
64
64
63
62
61
61
62
63
63
60
55
51

Pressure (mb)

1032
1033
1034
1035
1035
1036
1037
1039
1040
1041
1041
1042
1043
1043
1044
1044
1044
1044
1044
1044
1044
1045
1045
1045

Ozone (du)

319
318
316
315
314
313
312
310
310
310
310
310
308
307
305
303
301
299
299
299
299
299
299
298

Saturday 23

Waning Gibbous 74%

22:38

09:32

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

Sun - Rise: 06:55, Set: 17:34, Transit: 12:15. Moon - Rise: 22:38, Set: 09:32. Civil Dark: 18:06 - 06:22. Nautical Dark: 18:44 - 05:44. Astro Dark: 19:21 - 05:07

Total Clouds (% Sky Obscured)

2
56
78
57
52
8
4
42
78
85
75
80
59
0
0
0
0
0
0
0
2
2
2
2

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)

0
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2

High Clouds (% Sky Obscured)

2
53
78
57
52
8
4
42
78
85
75
80
59
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-12
-12
-12
-12
-12
-11
-11
-11
-11
-11
-11
-11
-11
-11
-12
-12
-12
-12
-12
-12
-12
-12
-12
-11

Relative Humidity (%)

45
41
37
35
35
36
38
43
47
48
48
48
48
48
48
49
50
52
54
55
55
52
47
43

Pressure (mb)

1044
1044
1043
1043
1043
1042
1042
1042
1043
1043
1043
1043
1043
1043
1042
1042
1042
1041
1041
1041
1041
1041
1041
1041

Ozone (du)

297
295
294
293
293
293
294
295
296
297
299
299
299
299
298
297
295
293
293
293
293
293
293
293

Sunday 24

Waning Gibbous 64%

23:52

09:59

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

Sun - Rise: 06:53, Set: 17:35, Transit: 12:15. Moon - Rise: 23:52, Set: 09:59. Civil Dark: 18:08 - 06:20. Nautical Dark: 18:45 - 05:43. Astro Dark: 19:23 - 05:05

Total Clouds (% Sky Obscured)

2
2
16
16
16
16
16
16
8
8
8
8
8
8
78
78
78
78
78
78
95
95
95
95

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)

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

High Clouds (% Sky Obscured)

0
0
16
16
16
16
16
16
8
8
8
8
8
8
77
77
77
77
77
77
95
95
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-10
-8
-7
-6
-5
-4
-4
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-4
-3
-2

Relative Humidity (%)

41
40
41
44
47
50
51
55
58
61
62
64
65
67
69
71
72
75
77
79
80
76
69
65

Pressure (mb)

1041
1040
1040
1039
1039
1039
1039
1039
1039
1039
1039
1039
1039
1039
1039
1039
1039
1038
1038
1038
1038
1038
1038
1037

Ozone (du)

293
293
292
292
290
290
289
289
290
292
294
296
296
296
297
300
305
309
313
317
319
317
313
311

Monday 25

Waning Gibbous 53%

01:03

10:30

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

Sun - Rise: 06:51, Set: 17:37, Transit: 12:15. Moon - Rise: 01:03, Set: 10:30. Civil Dark: 18:09 - 06:18. Nautical Dark: 18:47 - 05:41. Astro Dark: 19:24 - 05:03

Total Clouds (% Sky Obscured)

95
95
27
27
27
27
27
27
58
58
58
58
58
58
3
3
3
3
3
3
98
98
98
98

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)

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

High Clouds (% Sky Obscured)

95
95
27
27
27
27
27
27
58
58
58
58
58
58
3
3
3
3
3
3
98
98
98
98

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
1
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
0.01
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
60
58
56
56
56
58
65
70
73
73
74
75
76
78
79
81
83
85
87
88
85
80
76

Pressure (mb)

1037
1037
1037
1036
1035
1035
1035
1035
1036
1036
1036
1036
1036
1036
1036
1035
1035
1034
1034
1034
1034
1034
1033
1033

Ozone (du)

310
311
311
312
314
316
318
321
324
327
329
330
329
327
325
323
322
321
319
317
315
313
311
309

Tuesday 26

Third Quarter 43%

02:10

11:05

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 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 Good
08 Good
09 Good
10 Good

Sun - Rise: 06:49, Set: 17:39, Transit: 12:15. Moon - Rise: 02:10, Set: 11:05. Civil Dark: 18:11 - 06:16. Nautical Dark: 18:49 - 05:39. Astro Dark: 19:26 - 05:01

Total Clouds (% Sky Obscured)

98
98
87
87
87
87
87
87
66
66
66
66
66
66
38
38
38
38
38
38
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
9
9
9
9
9
9
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
32
32
32
32
32
32
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

98
98
82
82
82
82
82
82
63
63
63
63
63
63
38
38
38
38
38
38
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)

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

Chance of Frost

Temperature (°C)

7
9
11
12
13
13
12
10
8
7
7
6
6
5
4
4
3
3
2
2
1
3
5
6

Feels Like (°C)

6
8
11
12
13
13
12
9
7
6
5
5
4
3
3
2
2
1
1
0
0
1
3
5

Dew Point (°C)

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

Relative Humidity (%)

70
63
57
53
51
51
53
61
67
69
68
68
69
70
71
73
75
76
78
81
83
81
77
74

Pressure (mb)

1033
1032
1032
1031
1030
1030
1030
1030
1030
1031
1031
1031
1031
1030
1030
1030
1030
1029
1030
1030
1030
1030
1030
1030

Ozone (du)

307
305
304
303
302
301
300
299
297
295
294
292
291
290
290
290
292
293
294
294
294
293
293
292

Wednesday 27

Waning Crescent 33%

03:11

11:05

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

Sun - Rise: 06:47, Set: 17:40, Transit: 12:14. Moon - Rise: 03:11, Set: 11:05. Civil Dark: 18:13 - 06:14. Nautical Dark: 18:50 - 05:37. Astro Dark: 19:28 - 04:59

Total Clouds (% Sky Obscured)

0
0
2
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
11
11
11
11

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)

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

High Clouds (% Sky Obscured)

0
0
2
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
11
11
11
11

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)

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

Chance of Frost

Temperature (°C)

8
10
11
12
13
14
13
11
9
8
8
7
7
6
6
5
5
5
4
4
5
6
8
9

Feels Like (°C)

7
9
11
12
13
14
13
11
9
8
7
6
5
5
4
4
3
2
2
2
2
3
5
7

Dew Point (°C)

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

Relative Humidity (%)

71
69
65
61
57
56
58
65
70
72
71
71
72
73
75
76
77
78
79
81
82
80
76
72

Pressure (mb)

1030
1029
1029
1028
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1024
1024

Ozone (du)

291
291
290
289
287
285
283
282
281
280
280
280
280
279
279
279
279
279
280
281
283
284
284
285

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

Generated: 21/02/19 11:12:53. Forecast: 21/02/19 to 27/02/19. Timezone: UTC+1.00