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Ratmanova Island 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Ratmanova Island

Russia

Long range weather outlook for Ratmanova Island includes 14 day forecast summary:

Taking a look at Ratmanova Island over the coming two weeks and the average daytime maximum temperature will be around -9°C, with a high for the two weeks of 0°C expected on the afternoon of Thursday 12th. The average minimum temperature will be -18°C, dipping to its lowest on the morning of Wednesday 18th at -23°C. The coming 14 days will have mixed weather with some days dry and some seeing a little snow. Current predictions suggest Friday 13th will have the most precipitation with an accumulation of around 4.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 11
Mar		15:00

NNE
NNE

 1 / 2 mph 3 / 3°F 90% 1037 mb
Low level cloud: 8%
Mid level cloud: 8%
High level cloud: 22%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

 6 / 13 mph 6 / -5°F 97% 1036 mb
Low level cloud: 4%
Mid level cloud: 46%
High level cloud: 62%
Most Significant Cloud Type: medium
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 10 / 11 mph 19 / 8°F 92% 1034 mb
Low level cloud: 6%
Mid level cloud: 45%
High level cloud: 45%
Most Significant Cloud Type: medium
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 12
Mar		00:00

S
S

 13 / 15 mph 22 / 9°F 82% 1032 mb
Low level cloud: 64%
Mid level cloud: 100%
High level cloud: 34%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 15 / 17 mph 25 / 13°F 92% 1029 mb
Low level cloud: 91%
Mid level cloud: 52%
High level cloud: 44%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 15 / 17 mph 28 / 16°F 94% 1026 mb
Low level cloud: 92%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 15 / 17 mph 30 / 19°F 94% 1023 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 13 / 15 mph 31 / 21°F 95% 1022 mb
Low level cloud: 71%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSE
SSE

 10 / 11 mph 32 / 24°F 96% 1020 mb
Low level cloud: 75%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSE
SSE

 9 / 10 mph 31 / 23°F 97% 1020 mb
Low level cloud: 74%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 8 / 9 mph 29 / 21°F 96% 1021 mb
Low level cloud: 70%
Mid level cloud: 98%
High level cloud: 76%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 13
Mar		00:00

E
E

 5 / 6 mph 24 / 19°F 96% 1021 mb
Low level cloud: 76%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 4 / 6 mph 23 / 17°F 96% 1021 mb
Low level cloud: 70%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

 5 / 7 mph 23 / 16°F 96% 1021 mb
Low level cloud: 71%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 4 / 5 mph 23 / 17°F 94% 1022 mb
Low level cloud: 68%
Mid level cloud: 100%
High level cloud: 10%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

 11 / 14 mph 20 / 8°F 93% 1023 mb
Low level cloud: 59%
Mid level cloud: 100%
High level cloud: 12%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 14 / 20 mph 16 / 2°F 92% 1025 mb
Low level cloud: 39%
Mid level cloud: 100%
High level cloud: 5%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 16 / 24 mph 13 / -3°F 99% 1027 mb
Low level cloud: 88%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 18 / 27 mph 13 / -4°F 98% 1029 mb
Low level cloud: 78%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 14
Mar		00:00

NNW
NNW

 19 / 22 mph 16 / 0°F 99% 1030 mb
Low level cloud: 89%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 18 / 21 mph 15 / -2°F 94% 1031 mb
Low level cloud: 7%
Mid level cloud: 100%
High level cloud: 2%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 18 / 20 mph 12 / -5°F 96% 1032 mb
Low level cloud: 16%
Mid level cloud: 81%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 17 / 20 mph 14 / -2°F 91% 1034 mb
Low level cloud: 8%
Mid level cloud: 97%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 20 / 23 mph 14 / -3°F 91% 1035 mb
Low level cloud: 18%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 19 / 21 mph 10 / -9°F 99% 1035 mb
Low level cloud: 59%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 19 / 28 mph 4 / -16°F 100% 1037 mb
Low level cloud: 89%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 19 / 28 mph -1 / -22°F 100% 1038 mb
Low level cloud: 99%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 15
Mar		00:00

N
N

 18 / 21 mph 2 / -18°F 100% 1038 mb
Low level cloud: 100%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 19 / 24 mph 0 / -22°F 100% 1038 mb
Low level cloud: 99%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 16 / 23 mph -2 / -23°F 100% 1039 mb
Low level cloud: 97%
Mid level cloud: 13%
High level cloud: 13%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 16 / 18 mph 3 / -16°F 100% 1039 mb
Low level cloud: 96%
Mid level cloud: 26%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

 14 / 17 mph 8 / -9°F 97% 1039 mb
Low level cloud: 54%
Mid level cloud: 31%
High level cloud: 13%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 11 / 13 mph 11 / -3°F 100% 1038 mb
Low level cloud: 71%
Mid level cloud: 46%
High level cloud: 31%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 10 / 11 mph 8 / -6°F 100% 1038 mb
Low level cloud: 96%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 10 / 12 mph 4 / -10°F 100% 1038 mb
Low level cloud: 98%
Mid level cloud: 8%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 16
Mar		00:00

N
N

 11 / 13 mph 12 / -2°F 100% 1038 mb
Low level cloud: 93%
Mid level cloud: 44%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 14 / 16 mph 9 / -8°F 100% 1038 mb
Low level cloud: 97%
Mid level cloud: 49%
High level cloud: 38%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 15 / 18 mph 7 / -11°F 100% 1038 mb
Low level cloud: 100%
Mid level cloud: 28%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 17 / 20 mph 5 / -14°F 100% 1038 mb
Low level cloud: 77%
Mid level cloud: 21%
High level cloud: 9%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

 17 / 20 mph 6 / -13°F 100% 1038 mb
Low level cloud: 36%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 17 / 20 mph 6 / -13°F 100% 1038 mb
Low level cloud: 61%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 18 / 27 mph -4 / -27°F 100% 1038 mb
Low level cloud: 83%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 19 / 29 mph -7 / -30°F 100% 1038 mb
Low level cloud: 90%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 17
Mar		00:00

N
N

 21 / 24 mph -3 / -26°F 100% 1037 mb
Low level cloud: 98%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 22 / 25 mph -6 / -31°F 100% 1037 mb
Low level cloud: 100%
Mid level cloud: 3%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

 23 / 30 mph -8 / -35°F 100% 1036 mb
Low level cloud: 100%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 24 / 28 mph -2 / -27°F 100% 1035 mb
Low level cloud: 100%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

 24 / 28 mph 4 / -19°F 100% 1035 mb
Low level cloud: 93%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 23 / 26 mph 7 / -14°F 100% 1033 mb
Low level cloud: 97%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 23 / 26 mph 4 / -18°F 100% 1032 mb
Low level cloud: 96%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 23 / 26 mph -1 / -24°F 100% 1031 mb
Low level cloud: 91%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 18
Mar		00:00

N
N

 16 / 18 mph 12 / -5°F 93% 1024 mb
Low level cloud: 77%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNE
NNE

 6 / 12 mph -12 / -26°F 100% 1024 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 34%
Most Significant Cloud Type: low
10%
0.0 In
12:00

NNE
NNE

 15 / 17 mph 12 / -4°F 80% 1023 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
0.0 In
18:00

N
N

 14 / 16 mph 11 / -4°F 97% 1023 mb
Low level cloud: 19%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
24%
0.0 In
Thu 19
Mar		00:00

NNW
NNW

 26 / 29 mph 1 / -24°F 99% 1023 mb
Low level cloud: 94%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
97%
0.0 In
06:00

NNW
NNW

 22 / 35 mph -14 / -41°F 99% 1021 mb
Low level cloud: 88%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
89%
0.0 In
12:00

N
N

 10 / 12 mph 5 / -10°F 95% 1022 mb
Low level cloud: 17%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 In
18:00

N
N

 16 / 19 mph 9 / -8°F 99% 1021 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
0.0 In
Fri 20
Mar		00:00

N
N

 4 / 9 mph -2 / -11°F 100% 1021 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

N
N

 8 / 17 mph 0 / -14°F 100% 1023 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
12:00

S
S

 9 / 11 mph 21 / 10°F 76% 1020 mb
Low level cloud: 16%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.0 In
18:00

NE
NE

 3 / 5 mph 13 / 8°F 87% 1024 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Sat 21
Mar		00:00

S
S

 14 / 19 mph 22 / 10°F 91% 1019 mb
Low level cloud: 72%
Mid level cloud: 100%
High level cloud: 55%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSE
SSE

 6 / 11 mph 15 / 6°F 93% 1026 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

S
S

 15 / 20 mph 28 / 16°F 92% 1020 mb
Low level cloud: 95%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

S
S

 11 / 15 mph 24 / 13°F 81% 1027 mb
Low level cloud: 98%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
99%
0.0 In
Sun 22
Mar		00:00

SSW
SSW

 10 / 13 mph 28 / 19°F 91% 1022 mb
Low level cloud: 22%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
06:00

SSE
SSE

 20 / 38 mph 21 / 6°F 82% 1025 mb
Low level cloud: 14%
Mid level cloud: 2%
High level cloud: 8%
Most Significant Cloud Type: low
15%
0.0 In
12:00

NNE
NNE

 9 / 11 mph 21 / 10°F 91% 1026 mb
Low level cloud: 89%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
94%
0.0 In
18:00

SSE
SSE

 35 / 42 mph 25 / 7°F 83% 1017 mb
Low level cloud: 64%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Mon 23
Mar		00:00

NNE
NNE

 6 / 13 mph 11 / 1°F 100% 1028 mb
Low level cloud: 52%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
53%
0.0 In
06:00

SSE
SSE

 28 / 46 mph 19 / 1°F 91% 1012 mb
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
12:00

SE
SE

 2 / 2 mph 25 / 23°F 85% 1027 mb
Low level cloud: 51%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: low
53%
0.0 In
18:00

ESE
ESE

 5 / 6 mph 23 / 17°F 94% 1006 mb
Low level cloud: 80%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
Tue 24
Mar		00:00

SSE
SSE

 4 / 5 mph 28 / 23°F 89% 1024 mb
Low level cloud: 100%
Mid level cloud: 0%
High level cloud: 8%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNE
NNE

 16 / 19 mph 17 / 2°F 86% 1001 mb
Low level cloud: 1%
Mid level cloud: 96%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
12:00

NNE
NNE

 6 / 8 mph 28 / 21°F 84% 1021 mb
Low level cloud: 83%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: low
97%
0.0 In
18:00

N
N

 14 / 25 mph 10 / -6°F 91% 1003 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 12%
Most Significant Cloud Type: high
11%
0.0 In
Wed 25
Mar		00:00

N
N

 15 / 19 mph 12 / -5°F 100% 1018 mb
Low level cloud: 97%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
97%
0.0 In
06:00

N
N

 13 / 22 mph 0 / -19°F 100% 1005 mb
Low level cloud: 100%
Mid level cloud: 56%
High level cloud: 33%
Most Significant Cloud Type: low
100%
0.0 In
12:00

N
N

 7 / 9 mph 18 / 8°F 91% 1016 mb
Low level cloud: 42%
Mid level cloud: 32%
High level cloud: 36%
Most Significant Cloud Type: low
57%
0.0 In
18:00

N
N

 13 / 21 mph 2 / -15°F 100% 1009 mb
Low level cloud: 58%
Mid level cloud: 63%
High level cloud: 67%
Most Significant Cloud Type: low
88%
0.0 In
Thu 26
Mar		00:00

NNW
NNW

 21 / 32 mph 5 / -16°F 100% 1019 mb
Low level cloud: 97%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
06:00

N
N

 17 / 23 mph -3 / -24°F 100% 1011 mb
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NNW
NNW

 5 / 9 mph 2 / -9°F 94% 1018 mb
Low level cloud: 77%
Mid level cloud: 45%
High level cloud: 35%
Most Significant Cloud Type: low
96%
0.0 In
18:00

N
N

 21 / 25 mph 8 / -12°F 100% 1010 mb
Low level cloud: 96%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure