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Grjazi 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Grjazi

Russia

Long range weather outlook for Grjazi includes 14 day forecast summary:

Reviewing the forecast for Grjazi Over the next 14 days and the average daytime maximum temperature will be around -14°C, with a high for the two weeks of -7°C expected on the afternoon of Thursday 13th. The mean minimum temperature will be -31°C, dipping to its lowest on the morning of Friday 7th at -40°C. The next 14 days will have most days seeing a little snow. It looks like Wednesday 5th will have the most precipitation with an accumulation of around 3.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 05
Feb
16:00

NW
NW

18 / 21 mph -5 / -28°F 90% 1019 mb
Low level cloud: 32%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

15 / 17 mph -7 / -28°F 92% 1021 mb
Low level cloud: 51%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

7 / 8 mph -14 / -30°F 96% 1027 mb
Low level cloud: 71%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 06
Feb
01:00

NW
NW

6 / 8 mph -18 / -33°F 98% 1032 mb
Low level cloud: 84%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNW
NNW

9 / 11 mph -15 / -33°F 96% 1035 mb
Low level cloud: 77%
Mid level cloud: 100%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

10 / 11 mph -15 / -35°F 96% 1039 mb
Low level cloud: 81%
Mid level cloud: 100%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NW
NW

6 / 11 mph -23 / -40°F 97% 1044 mb
Low level cloud: 78%
Mid level cloud: 93%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NW
NW

10 / 11 mph -10 / -29°F 88% 1043 mb
Low level cloud: 25%
Mid level cloud: 100%
High level cloud: 14%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

10 / 12 mph -7 / -25°F 85% 1043 mb
Low level cloud: 13%
Mid level cloud: 90%
High level cloud: 4%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

6 / 7 mph -12 / -26°F 93% 1046 mb
Low level cloud: 54%
Mid level cloud: 100%
High level cloud: 7%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

4 / 7 mph -34 / -47°F 100% 1055 mb
Low level cloud: 100%
Mid level cloud: 35%
High level cloud: 10%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 07
Feb
01:00

W
W

4 / 8 mph -37 / -50°F 100% 1057 mb
Low level cloud: 100%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WSW
WSW

4 / 8 mph -38 / -52°F 100% 1058 mb
Low level cloud: 99%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

3 / 7 mph -40 / -53°F 100% 1059 mb
Low level cloud: 99%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

3 / 7 mph -40 / -53°F 99% 1060 mb
Low level cloud: 84%
Mid level cloud: 2%
High level cloud: 1%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WNW
WNW

4 / 4 mph -7 / -16°F 76% 1049 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

4 / 5 mph 0 / -9°F 70% 1044 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

3 / 6 mph -13 / -21°F 89% 1045 mb
Low level cloud: 6%
Mid level cloud: 21%
High level cloud: 2%
Most Significant Cloud Type: medium
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

3 / 7 mph -31 / -43°F 99% 1053 mb
Low level cloud: 78%
Mid level cloud: 21%
High level cloud: 6%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 08
Feb
01:00

SSW
SSW

3 / 7 mph -32 / -44°F 99% 1052 mb
Low level cloud: 82%
Mid level cloud: 16%
High level cloud: 26%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

4 / 7 mph -31 / -43°F 98% 1051 mb
Low level cloud: 79%
Mid level cloud: 45%
High level cloud: 3%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

4 / 7 mph -30 / -42°F 99% 1049 mb
Low level cloud: 93%
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
10:00

SSW
SSW

4 / 7 mph -29 / -41°F 100% 1048 mb
Low level cloud: 99%
Mid level cloud: 53%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

3 / 3 mph 2 / -5°F 88% 1038 mb
Low level cloud: 38%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

5 / 6 mph 7 / -3°F 78% 1033 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

2 / 3 mph -3 / -3°F 94% 1033 mb
Low level cloud: 31%
Mid level cloud: 55%
High level cloud: 2%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

3 / 6 mph -20 / -30°F 100% 1038 mb
Low level cloud: 100%
Mid level cloud: 77%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 09
Feb
01:00

SSW
SSW

3 / 7 mph -23 / -34°F 100% 1038 mb
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 4%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

3 / 6 mph -18 / -27°F 99% 1034 mb
Low level cloud: 97%
Mid level cloud: 100%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

2 / 5 mph -16 / -22°F 99% 1032 mb
Low level cloud: 94%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

2 / 4 mph -16 / -16°F 100% 1031 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

1 / 1 mph 7 / 6°F 88% 1026 mb
Low level cloud: 50%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

3 / 3 mph 10 / 6°F 76% 1022 mb
Low level cloud: 0%
Mid level cloud: 81%
High level cloud: 0%
Most Significant Cloud Type: medium
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNE
NNE

3 / 3 mph 5 / 0°F 94% 1023 mb
Low level cloud: 55%
Mid level cloud: 92%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

3 / 6 mph -16 / -25°F 100% 1030 mb
Low level cloud: 100%
Mid level cloud: 95%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 10
Feb
01:00

SSE
SSE

4 / 7 mph -25 / -36°F 100% 1035 mb
Low level cloud: 100%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

4 / 7 mph -26 / -38°F 100% 1035 mb
Low level cloud: 100%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

S
S

3 / 7 mph -26 / -38°F 100% 1035 mb
Low level cloud: 99%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

3 / 7 mph -26 / -37°F 99% 1036 mb
Low level cloud: 96%
Mid level cloud: 5%
High level cloud: 3%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SE
SE

2 / 2 mph 10 / 6°F 71% 1025 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

3 / 3 mph 15 / 11°F 62% 1022 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

3 / 6 mph 0 / -6°F 88% 1024 mb
Low level cloud: 4%
Mid level cloud: 8%
High level cloud: 11%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

4 / 8 mph -15 / -27°F 95% 1033 mb
Low level cloud: 47%
Mid level cloud: 2%
High level cloud: 100%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 11
Feb
01:00

S
S

4 / 8 mph -13 / -24°F 89% 1032 mb
Low level cloud: 8%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

4 / 9 mph -16 / -28°F 85% 1033 mb
Low level cloud: 0%
Mid level cloud: 83%
High level cloud: 34%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

S
S

4 / 8 mph -20 / -32°F 82% 1035 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 100%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

3 / 6 mph -16 / -24°F 82% 1033 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

1 / 1 mph 11 / 11°F 63% 1025 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

2 / 2 mph 15 / 15°F 65% 1023 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

N
N

4 / 4 mph 11 / 3°F 88% 1023 mb
Low level cloud: 6%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

3 / 5 mph -1 / -7°F 99% 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
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 12
Feb
04:00

WNW
WNW

9 / 11 mph 0 / -15°F 95% 1015 mb
Low level cloud: 67%
Mid level cloud: 100%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
10:00

SW
SW

4 / 9 mph -15 / -27°F 98% 1030 mb
Low level cloud: 80%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
85%
0.0 In
16:00

WNW
WNW

10 / 12 mph 11 / -3°F 74% 1021 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 4%
Most Significant Cloud Type: medium
17%
0.0 In
22:00

SSW
SSW

4 / 9 mph -5 / -16°F 92% 1022 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
42%
0.0 In
Thu 13
Feb
04:00

SSW
SSW

4 / 9 mph -17 / -29°F 90% 1025 mb
Low level cloud: 12%
Mid level cloud: 12%
High level cloud: 12%
Most Significant Cloud Type: low
17%
0.0 In
10:00

SW
SW

4 / 8 mph -20 / -32°F 95% 1027 mb
Low level cloud: 46%
Mid level cloud: 7%
High level cloud: 10%
Most Significant Cloud Type: low
49%
0.0 In
16:00

WNW
WNW

8 / 9 mph 20 / 10°F 76% 1012 mb
Low level cloud: 0%
Mid level cloud: 99%
High level cloud: 20%
Most Significant Cloud Type: medium
100%
0.0 In
22:00

SSW
SSW

4 / 9 mph -14 / -26°F 99% 1028 mb
Low level cloud: 86%
Mid level cloud: 17%
High level cloud: 7%
Most Significant Cloud Type: low
92%
0.0 In
Fri 14
Feb
04:00

SSW
SSW

4 / 8 mph -17 / -28°F 100% 1025 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 9%
Most Significant Cloud Type: low
100%
0.0 In
10:00

S
S

4 / 9 mph -7 / -18°F 83% 1026 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 32%
Most Significant Cloud Type: medium
21%
0.0 In
16:00

NNW
NNW

4 / 5 mph 17 / 11°F 66% 1013 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 10%
Most Significant Cloud Type: medium
100%
0.0 In
22:00

SE
SE

2 / 4 mph 6 / 2°F 97% 1019 mb
Low level cloud: 69%
Mid level cloud: 54%
High level cloud: 100%
Most Significant Cloud Type: low
99%
0.0 In
Sat 15
Feb
04:00

SW
SW

4 / 8 mph -19 / -30°F 100% 1027 mb
Low level cloud: 100%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
10:00

WNW
WNW

6 / 9 mph 1 / -11°F 95% 1026 mb
Low level cloud: 60%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.1 In
16:00

WNW
WNW

9 / 11 mph 14 / 2°F 77% 1017 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
99%
0.0 In
22:00

WSW
WSW

3 / 7 mph -14 / -23°F 100% 1038 mb
Low level cloud: 100%
Mid level cloud: 98%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Sun 16
Feb
04:00

WNW
WNW

10 / 13 mph 3 / -13°F 95% 1025 mb
Low level cloud: 71%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
10:00

SSW
SSW

4 / 10 mph -20 / -33°F 96% 1039 mb
Low level cloud: 52%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.0 In
16:00

NW
NW

14 / 18 mph 10 / -6°F 82% 1028 mb
Low level cloud: 1%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.1 In
22:00

S
S

5 / 10 mph -13 / -25°F 92% 1031 mb
Low level cloud: 22%
Mid level cloud: 8%
High level cloud: 2%
Most Significant Cloud Type: low
24%
0.0 In
Mon 17
Feb
04:00

SSW
SSW

4 / 9 mph -22 / -35°F 100% 1042 mb
Low level cloud: 98%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
10:00

S
S

4 / 8 mph -12 / -23°F 90% 1024 mb
Low level cloud: 11%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
42%
0.0 In
16:00

WNW
WNW

5 / 7 mph 17 / 9°F 63% 1029 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 6%
Most Significant Cloud Type: medium
12%
0.0 In
22:00

NNW
NNW

3 / 5 mph 9 / 3°F 97% 1018 mb
Low level cloud: 68%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Tue 18
Feb
04:00

SSW
SSW

3 / 6 mph -15 / -25°F 97% 1042 mb
Low level cloud: 61%
Mid level cloud: 21%
High level cloud: 14%
Most Significant Cloud Type: low
70%
0.0 In
10:00

WNW
WNW

4 / 9 mph -12 / -23°F 100% 1033 mb
Low level cloud: 95%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
16:00

NW
NW

4 / 6 mph 20 / 14°F 71% 1032 mb
Low level cloud: 0%
Mid level cloud: 36%
High level cloud: 0%
Most Significant Cloud Type: medium
36%
0.0 In
22:00

WNW
WNW

6 / 13 mph -7 / -20°F 96% 1037 mb
Low level cloud: 76%
Mid level cloud: 98%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Wed 19
Feb
04:00

SSW
SSW

3 / 7 mph -13 / -22°F 100% 1043 mb
Low level cloud: 96%
Mid level cloud: 44%
High level cloud: 18%
Most Significant Cloud Type: low
100%
0.0 In
10:00

SSW
SSW

5 / 10 mph -18 / -31°F 89% 1043 mb
Low level cloud: 8%
Mid level cloud: 8%
High level cloud: 10%
Most Significant Cloud Type: low
11%
0.0 In
16:00

NW
NW

4 / 6 mph 23 / 18°F 70% 1029 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
22:00

S
S

4 / 8 mph -10 / -21°F 95% 1038 mb
Low level cloud: 40%
Mid level cloud: 8%
High level cloud: 6%
Most Significant Cloud Type: low
43%
0.0 In
Thu 20
Feb
04:00

SSW
SSW

3 / 7 mph -10 / -19°F 99% 1038 mb
Low level cloud: 90%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
97%
0.0 In
10:00

S
S

4 / 9 mph -10 / -20°F 85% 1037 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 10%
Most Significant Cloud Type: medium
4%
0.0 In
16:00

WNW
WNW

4 / 6 mph 25 / 19°F 71% 1026 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
22:00

SSE
SSE

5 / 11 mph -2 / -12°F 93% 1030 mb
Low level cloud: 30%
Mid level cloud: 60%
High level cloud: 98%
Most Significant Cloud Type: low
62%
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