Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Ogden 14 Day Long Range Forecast

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

Calderdale, United Kingdom

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

The forecast for Ogden in the coming two weeks is predicting the average daytime maximum temperature will be around 22°C, with a high for the two weeks of 29°C expected on the afternoon of Saturday 21st. The average minimum temperature will be 13°C, dipping to its lowest on the morning of Wednesday 25th at 8°C. Expect the next 14 days have mixed overhead conditions with some days dry and some seeing a significant amount of rain. Predictions are Monday 23rd will have the most precipitation with an accumulation of around 4.0mm. On the whole winds are likely to be moderate. The strongest wind will be felt on the evening of Monday 23rd, coming from a westerly direction, and reaching around 26mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 17
Jun		21:00

W
W

 7 / 11 mph 59 / 56°F 94% 1023 mb
Low level cloud: 57%
Mid level cloud: 7%
High level cloud: 2%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 18
Jun		00:00

W
W

 6 / 11 mph 56 / 55°F 93% 1024 mb
Low level cloud: 84%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 8 / 12 mph 56 / 54°F 94% 1023 mb
Low level cloud: 72%
Mid level cloud: 15%
High level cloud: 14%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 6 / 8 mph 58 / 55°F 80% 1024 mb
Low level cloud: 1%
Mid level cloud: 32%
High level cloud: 4%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 10 / 12 mph 62 / 60°F 51% 1025 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 47%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 12 / 13 mph 65 / 64°F 47% 1026 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 16%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 12 / 13 mph 65 / 64°F 50% 1025 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 9 / 10 mph 65 / 63°F 57% 1025 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 3 / 5 mph 59 / 58°F 73% 1026 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 19
Jun		00:00

WSW
WSW

 3 / 6 mph 54 / 54°F 74% 1027 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 3 / 5 mph 52 / 53°F 77% 1027 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 1 / 1 mph 60 / 58°F 69% 1027 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 3 / 3 mph 70 / 68°F 55% 1026 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
12:00

SSW
SSW

 4 / 5 mph 77 / 76°F 46% 1026 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 6 / 7 mph 79 / 78°F 43% 1025 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 70%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 3 / 4 mph 79 / 78°F 51% 1024 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 6%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 5 / 8 mph 70 / 68°F 67% 1025 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 19%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 20
Jun		00:00

ENE
ENE

 3 / 4 mph 64 / 64°F 81% 1026 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 14%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 2 / 4 mph 60 / 60°F 89% 1025 mb
Low level cloud: 3%
Mid level cloud: 6%
High level cloud: 35%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 2 / 4 mph 66 / 64°F 81% 1025 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 31%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 6 / 8 mph 75 / 76°F 51% 1025 mb
Low level cloud: 0%
Mid level cloud: 92%
High level cloud: 21%
Most Significant Cloud Type: medium
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 10 / 11 mph 80 / 78°F 41% 1024 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 9 / 12 mph 78 / 77°F 46% 1023 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 56%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 6 / 9 mph 79 / 78°F 53% 1023 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 13%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 5 / 7 mph 74 / 76°F 67% 1023 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 2%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 21
Jun		00:00

SE
SE

 3 / 5 mph 66 / 66°F 74% 1023 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ESE
ESE

 3 / 6 mph 62 / 62°F 79% 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
06:00

SE
SE

 4 / 6 mph 66 / 63°F 68% 1022 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 11 / 14 mph 76 / 77°F 49% 1020 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 28%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 12 / 14 mph 81 / 79°F 38% 1019 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 12 / 15 mph 84 / 82°F 37% 1017 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 6%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSE
SSE

 9 / 13 mph 84 / 82°F 47% 1016 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 24%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 5 / 9 mph 79 / 77°F 54% 1015 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 52%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 22
Jun		00:00

SSE
SSE

 7 / 12 mph 72 / 71°F 54% 1014 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 19%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

 5 / 10 mph 63 / 63°F 85% 1012 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 93%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

 5 / 9 mph 67 / 64°F 82% 1010 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 19%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 15 / 17 mph 74 / 76°F 55% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 15 / 17 mph 77 / 77°F 41% 1008 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 17 / 19 mph 74 / 76°F 48% 1007 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 17 / 25 mph 63 / 61°F 79% 1007 mb
Low level cloud: 21%
Mid level cloud: 49%
High level cloud: 100%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SW
SW

 15 / 23 mph 58 / 55°F 89% 1006 mb
Low level cloud: 90%
Mid level cloud: 44%
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 23
Jun		00:00

WSW
WSW

 14 / 22 mph 53 / 49°F 88% 1006 mb
Low level cloud: 70%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 14 / 22 mph 51 / 47°F 90% 1005 mb
Low level cloud: 60%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 16 / 22 mph 52 / 46°F 84% 1005 mb
Low level cloud: 70%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 20 / 25 mph 56 / 51°F 70% 1005 mb
Low level cloud: 68%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 24 / 31 mph 61 / 60°F 64% 1004 mb
Low level cloud: 54%
Mid level cloud: 31%
High level cloud: 8%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 25 / 38 mph 53 / 47°F 93% 1004 mb
Low level cloud: 96%
Mid level cloud: 57%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

W
W

 27 / 40 mph 55 / 49°F 88% 1005 mb
Low level cloud: 97%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 23 / 36 mph 54 / 48°F 87% 1007 mb
Low level cloud: 97%
Mid level cloud: 32%
High level cloud: 0%
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 25
Jun		00:00

ENE
ENE

 10 / 13 mph 55 / 52°F 93% 1025 mb
Low level cloud: 84%
Mid level cloud: 28%
High level cloud: 62%
Most Significant Cloud Type: low
100%
0.0 In
06:00

WSW
WSW

 5 / 9 mph 54 / 53°F 84% 1019 mb
Low level cloud: 8%
Mid level cloud: 4%
High level cloud: 72%
Most Significant Cloud Type: medium
30%
0.0 In
12:00

WNW
WNW

 15 / 20 mph 65 / 65°F 44% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
3%
0.0 In
18:00

WNW
WNW

 13 / 20 mph 60 / 60°F 63% 1021 mb
Low level cloud: 1%
Mid level cloud: 10%
High level cloud: 10%
Most Significant Cloud Type: medium
14%
0.0 In
Thu 26
Jun		00:00

SW
SW

 4 / 8 mph 65 / 65°F 84% 1011 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
06:00

WSW
WSW

 7 / 10 mph 58 / 57°F 81% 1024 mb
Low level cloud: 2%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
12:00

SW
SW

 16 / 29 mph 75 / 76°F 30% 1004 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
0.0 In
18:00

WNW
WNW

 8 / 12 mph 72 / 72°F 60% 1024 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Fri 27
Jun		00:00

SW
SW

 17 / 30 mph 57 / 53°F 84% 1004 mb
Low level cloud: 14%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.0 In
06:00

SE
SE

 2 / 2 mph 71 / 71°F 63% 1024 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: medium
3%
0.0 In
12:00

WSW
WSW

 25 / 47 mph 62 / 62°F 53% 1005 mb
Low level cloud: 31%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
40%
0.0 In
18:00

SSW
SSW

 6 / 9 mph 86 / 85°F 38% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
Sat 28
Jun		00:00

WSW
WSW

 21 / 41 mph 53 / 47°F 79% 1012 mb
Low level cloud: 95%
Mid level cloud: 19%
High level cloud: 10%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSW
SSW

 2 / 3 mph 73 / 77°F 56% 1017 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 12%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

SW
SW

 14 / 27 mph 55 / 51°F 82% 1016 mb
Low level cloud: 80%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

WNW
WNW

 10 / 15 mph 70 / 70°F 46% 1018 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: medium
46%
0.0 In
Sun 29
Jun		00:00

W
W

 18 / 34 mph 59 / 55°F 95% 1015 mb
Low level cloud: 95%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NE
NE

 9 / 13 mph 60 / 60°F 81% 1018 mb
Low level cloud: 13%
Mid level cloud: 23%
High level cloud: 41%
Most Significant Cloud Type: low
26%
0.0 In
12:00

W
W

 14 / 27 mph 67 / 67°F 52% 1020 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
0.0 In
18:00

SSW
SSW

 6 / 9 mph 79 / 80°F 47% 1008 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 80%
Most Significant Cloud Type: medium
50%
0.0 In
Mon 30
Jun		00:00

WSW
WSW

 2 / 4 mph 62 / 62°F 82% 1021 mb
Low level cloud: 18%
Mid level cloud: 21%
High level cloud: 32%
Most Significant Cloud Type: low
29%
0.0 In
06:00

W
W

 19 / 29 mph 53 / 48°F 70% 1008 mb
Low level cloud: 72%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
72%
0.0 In
12:00

WSW
WSW

 12 / 23 mph 76 / 78°F 51% 1016 mb
Low level cloud: 60%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
75%
0.0 In
18:00

W
W

 13 / 21 mph 60 / 60°F 52% 1013 mb
Low level cloud: 3%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
15%
0.0 In
Tue 01
Jul		00:00

NW
NW

 3 / 6 mph 61 / 61°F 88% 1017 mb
Low level cloud: 5%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
62%
0.0 In
06:00

SSE
SSE

 9 / 14 mph 52 / 49°F 94% 1007 mb
Low level cloud: 98%
Mid level cloud: 86%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.3 In
12:00

WNW
WNW

 12 / 24 mph 67 / 67°F 42% 1017 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
18:00

WSW
WSW

 20 / 32 mph 58 / 55°F 80% 1004 mb
Low level cloud: 42%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
50%
0.0 In
Wed 02
Jul		00:00

WNW
WNW

 3 / 6 mph 52 / 52°F 83% 1017 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 86%
Most Significant Cloud Type: high
86%
0.0 In
06:00

WSW
WSW

 9 / 15 mph 54 / 52°F 82% 1014 mb
Low level cloud: 32%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
12:00

SSE
SSE

 5 / 11 mph 61 / 61°F 50% 1010 mb
Low level cloud: 31%
Mid level cloud: 89%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
18:00

WSW
WSW

 7 / 13 mph 66 / 66°F 54% 1013 mb
Low level cloud: 5%
Mid level cloud: 28%
High level cloud: 100%
Most Significant Cloud Type: medium
44%
0.0 In
Thu 03
Jul		00:00

SSW
SSW

 4 / 7 mph 54 / 54°F 93% 1004 mb
Low level cloud: 34%
Mid level cloud: 83%
High level cloud: 14%
Most Significant Cloud Type: low
65%
0.2 In
06:00

SW
SW

 10 / 20 mph 51 / 47°F 83% 1011 mb
Low level cloud: 12%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: low
26%
0.0 In
12:00

W
W

 14 / 27 mph 58 / 56°F 52% 1002 mb
Low level cloud: 13%
Mid level cloud: 72%
High level cloud: 96%
Most Significant Cloud Type: medium
100%
0.1 In

The day label given represents the local day relative to the local time for the location you are looking at.
(More Info)

Day

This time is corrected for local time zones and where possible for daylight saving times.
(More Info)

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.
(More Info)

Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
(More Info)

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.
(More Info)

Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
(More Info)

Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
(More Info)

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.
(More Info)

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.
(More Info)

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.
(More Info)

Pressure