Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waning Gibbous 91%

20:39

09:20

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 OK
01 OK
02 OK
03 Bad
04 Good
05 Good
06 Good
07 OK
08 Bad
09 Bad

Sun - Rise: 07:40, Set: 18:04, Transit: 12:53. Moon - Rise: 20:39, Set: 09:20. Civil Dark: 18:39 - 07:05. Nautical Dark: 19:18 - 06:26. Astro Dark: 19:57 - 05:47

Total Clouds (% Sky Obscured)

99
100
100
96
100
100
100
100
100
100
100
100
98
84
21
44
45
50
9
4
14
32
100
100

Low Clouds (% Sky Obscured)

77
93
99
95
100
100
100
100
100
100
100
100
98
52
14
15
16
9
6
2
8
32
100
100

Medium Clouds (% Sky Obscured)

97
98
100
64
50
100
99
46
92
72
89
45
27
16
6
5
3
2
2
2
2
1
0
2

High Clouds (% Sky Obscured)

0
6
0
0
0
0
0
0
0
0
0
0
21
66
8
34
35
45
4
2
6
0
0
0

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
100
100

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

Precipitation Amount (mm)

0
0
0.01
0.03
0.04
0.05
0.06
0.06
0.05
0.04
0.03
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
9
10
12
11
12
11
10
9
8
7
6
6
5
5
5
3
3
3
3
3
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
93
86
82
81
82
83
85
88
90
91
92
93
94
94
95
96
96
97
99
100
100
100
100

Pressure (mb)

1025
1025
1026
1026
1026
1026
1027
1027
1028
1028
1029
1029
1030
1030
1031
1031
1032
1032
1032
1033
1033
1034
1034
1035

Ozone (du)

336
333
329
325
320
316
312
308
305
302
299
297
295
293
291
288
286
283
281
279
278
278
277
276

Friday 22

Waning Gibbous 83%

22:01

09:43

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

Sun - Rise: 07:37, Set: 18:06, Transit: 12:53. Moon - Rise: 22:01, Set: 09:43. Civil Dark: 18:40 - 07:03. Nautical Dark: 19:20 - 06:24. Astro Dark: 19:59 - 05:45

Total Clouds (% Sky Obscured)

100
100
100
85
84
98
98
98
95
94
72
60
86
42
37
23
24
22
13
6
2
1
0
0

Low Clouds (% Sky Obscured)

100
100
100
85
84
98
97
88
24
25
43
49
40
37
37
23
9
9
9
5
2
1
0
0

Medium Clouds (% Sky Obscured)

3
1
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
0
0
0
0
54
90
92
91
51
23
75
9
0
0
18
13
3
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 (%)

100
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
3
4
4
4
5
5
6
6
7
7
7
7
7
7
7
7
7
7
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
9
11
12
13
14
14
13
12
11
10
8
7
6
5
5
4
3
3
2
2
1
2
2

Dew Point (°C)

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

Relative Humidity (%)

98
94
89
83
79
78
77
80
84
86
87
87
88
89
91
92
93
94
95
96
99
97
93
87

Pressure (mb)

1035
1035
1036
1036
1036
1036
1036
1036
1036
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037
1037

Ozone (du)

276
275
275
275
274
274
274
275
277
279
281
283
284
285
287
287
287
286
285
285
284
284
284
283

Saturday 23

Waning Gibbous 74%

23:20

10:07

10 Good
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

Sun - Rise: 07:35, Set: 18:08, Transit: 12:53. Moon - Rise: 23:20, Set: 10:07. Civil Dark: 18:42 - 07:01. Nautical Dark: 19:21 - 06:22. Astro Dark: 20:00 - 05:43

Total 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

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
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
5
7
11
12
13
13
12
10
7
6
5
4
3
2
2
1
1
0
-1
-2
-2
-1
-0

Dew Point (°C)

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

Relative Humidity (%)

81
74
67
60
55
52
51
51
54
56
57
57
57
57
56
56
56
56
57
58
59
59
57
54

Pressure (mb)

1037
1037
1037
1037
1036
1036
1036
1035
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1035
1035
1035
1035
1036
1036

Ozone (du)

282
282
282
281
281
281
281
280
281
281
281
281
281
281
281
281
281
280
280
281
283
285
287
289

Sunday 24

Waning Gibbous 63%

00:37

10:07

10 Good
11 Good
12 Good
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
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

Sun - Rise: 07:33, Set: 18:10, Transit: 12:53. Moon - Rise: 00:37, Set: 10:07. Civil Dark: 18:44 - 06:59. Nautical Dark: 19:23 - 06:20. Astro Dark: 20:02 - 05:41

Total Clouds (% Sky Obscured)

0
0
0
28
28
28
28
28
28
0
0
0
0
0
0
0
0
0
0
0
0
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)

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
0
28
28
28
28
28
28
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
48
46
45
45
46
47
47
50
53
55
57
58
60
62
63
65
67
69
72
75
75
73
69

Pressure (mb)

1036
1037
1037
1036
1036
1036
1036
1036
1036
1036
1036
1036
1037
1037
1037
1037
1037
1037
1036
1037
1037
1037
1037
1037

Ozone (du)

290
290
289
289
289
290
291
294
297
300
301
302
303
306
310
314
319
324
327
325
321
317
315
314

Monday 25

Waning Gibbous 53%

01:49

10:32

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

Sun - Rise: 07:31, Set: 18:12, Transit: 12:52. Moon - Rise: 01:49, Set: 10:32. Civil Dark: 18:46 - 06:57. Nautical Dark: 19:25 - 06:18. Astro Dark: 20:04 - 05:39

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
45
45
45
45
45
45
77
77
77
77
77
77
71
71
71

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
0
0
0
0
0
0
0
45
45
45
45
45
45
77
77
77
77
77
77
71
71
71

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
2
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
0.01
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
5
5
5
5
5
4
4
4
4
4
4
4
4
5
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

6
8
10
12
13
14
13
12
10
8
7
7
6
5
5
4
4
4
3
3
2
2
3
5

Feels Like (°C)

4
7
9
12
13
14
13
12
10
8
7
6
5
4
3
3
2
2
2
1
0
1
2
4

Dew Point (°C)

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

Relative Humidity (%)

65
60
56
53
51
51
52
57
65
70
73
74
74
76
78
79
80
81
83
85
87
87
85
81

Pressure (mb)

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

Ozone (du)

313
312
312
312
312
312
313
312
311
311
311
311
311
310
309
308
307
306
305
305
305
304
304
303

Tuesday 26

Third Quarter 42%

02:57

11:01

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

Sun - Rise: 07:29, Set: 18:13, Transit: 12:52. Moon - Rise: 02:57, Set: 11:01. Civil Dark: 18:47 - 06:55. Nautical Dark: 19:27 - 06:16. Astro Dark: 20:06 - 05:37

Total Clouds (% Sky Obscured)

71
71
71
62
62
62
62
62
62
15
15
15
15
15
15
0
0
0
0
0
0
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)

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)

71
71
71
62
62
62
62
62
62
15
15
15
15
15
15
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)

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

Chance of Frost

Temperature (°C)

7
9
11
14
15
15
15
14
12
11
9
9
8
7
7
6
6
5
5
4
3
3
4
6

Feels Like (°C)

6
8
11
14
15
15
15
14
12
11
8
7
6
5
5
4
4
3
3
2
1
2
2
5

Dew Point (°C)

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

Relative Humidity (%)

76
69
61
55
52
50
51
53
59
63
66
68
69
70
70
70
72
74
77
79
80
79
77
70

Pressure (mb)

1033
1033
1033
1033
1032
1032
1031
1031
1031
1031
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027

Ozone (du)

303
302
302
301
301
302
301
301
300
299
297
295
294
293
292
292
291
291
291
291
292
292
293
293

Wednesday 27

Waning Crescent 32%

03:59

11:36

10 Good
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 OK
08 OK
09 OK

Sun - Rise: 07:27, Set: 18:15, Transit: 12:52. Moon - Rise: 03:59, Set: 11:36. Civil Dark: 18:49 - 06:53. Nautical Dark: 19:28 - 06:14. Astro Dark: 20:08 - 05:34

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
4
4
4

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
8
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
9
12
14
16
16
16
15
13
11
10
8
7
6
6
5
5
5
5
5
4
4
4
5

Dew Point (°C)

2
3
4
4
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
6
7

Relative Humidity (%)

65
60
56
51
49
48
49
53
59
65
69
72
75
79
83
86
87
88
89
90
92
94
93
90

Pressure (mb)

1027
1027
1026
1026
1025
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1025

Ozone (du)

293
293
293
293
293
293
293
293
292
293
293
293
294
295
296
297
297
297
299
301
305
309
315
322

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

Generated: 21/02/19 10:32:15. Forecast: 21/02/19 to 27/02/19. Timezone: UTC+1.00