Derry Downs, Greater London

Wed 04 Dec 2024

Time Weather Temp Feels Rain Cloud Speed Gust Dir Hum Pressure Thickness 850 hPa 0°C level Snow High cloud Mid cloud Low cloud
0.0 mm 97 % 6 mph 23 mph Wind direction 97 % 1018 mB 540dam 1C 1557m 0cm 0% 78% 97
4.8 mm 19 % 5 mph 12 mph Wind direction 98 % 1018 mB 538dam 0C 1574m 0cm 0% 0% 19
0.0 mm 3 % 5 mph 20 mph Wind direction 90 % 1019 mB 539dam 0C 1555m 0cm 3% 0% 0
0.0 mm 4 % 4 mph 15 mph Wind direction 88 % 1021 mB 541dam 1C 1669m 0cm 4% 0% 0
0.0 mm 5 % 3 mph 6 mph Wind direction 77 % 1022 mB 543dam 1C 1763m 0cm 5% 4% 0
0.0 mm 100 % 2 mph 3 mph Wind direction 80 % 1022 mB 545dam 3C 2442m 0cm 2% 100% 0
0.0 mm 5 % 2 mph 2 mph Wind direction 86 % 1022 mB 546dam 4C 2643m 0cm 5% 0% 0
0.0 mm 100 % 3 mph 4 mph Wind direction 86 % 1023 mB 545dam 4C 2642m 0cm 100% 22% 0
Forecast issued: 23/11/2024 16:14:38

Information

In addition to the standard variables some less common ones are included in the forecast.

Thickness

Thickness is the height of the 1000-500 hPa layer above sea level. It is a good indicator of how cold the air is. The lower the thickness the colder the air. 528 dam or lower is often an indicator of snow. 564 dam or higher can indicate heat wave conditions in the summer.

850 hPa

The air temperature at the 850 millibar pressure level in the atmosphere, which is located approximately 1.5 kilometers. It helps to distinguish between warm and cold air masses because it is not subject to day to night variations.

0°C level

The freezing level is the altitude in metres at which the air temperature is at 0°C

High, mid and low cloud

The percentage cloud cover at high, mid and low altitudes.

Key

18°C
Temp (Celsius)
Wind direction Wind direction Sunny Clear

Sun / Clear

Fair, sun and clouds Fair, clear and clouds

Sun / Clear periods

Mostly cloudy Mostly cloudy

Sun / Clear intervals

Cloudy Cloudy

Cloudy

Light rain Light rain

Light rain

Heavy rain Heavy rain

Heavy rain

Showers Showers

Showers

Thunderstorm and possible hail Thunderstorm and possible hail

Thunder

Sleet Sleet

Sleet

Snow showers Snow showers

Snow showers

Light snow Light snow

Light snow

Heavy snow Heavy snow

Heavy snow

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