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energy caused by wind shear) of turbulence which is used to show dynamic stability and the formation of turbulence. 1 [YYYYMMDD]T[hhmm]Z-PT[nnnn]H[mm]M-bulk_ richardson_number.nc 3-hourly (0-144) 6-hourly (150- 168) Instantaneous cloud amount below 1000ft ASL Fraction of horizontal grid square

What is METAR and TAF? METARs provide current conditions; TAFs offer forecast trends METARs are coded weather reports summarising current conditions at aerodromes, including wind, visibility, weather, cloud, temperature, and pressure. TAFs are coded forecasts that describe the most likely weather

matrix www.metoffice.gov.uk © Crown Copyright 2024, Met Office Heathrow D-1 and D0 Graphs LVP threshold: Visibility <600 m www.metoffice.gov.uk © Crown Copyright 2024, Met Office Gatwick D-1 and D0 Graphs LVP threshold: Visibility <600 m Cloud ceiling <200 ft www.metoffice.gov.uk © Crown Copyright

matrix www.metoffice.gov.uk © Crown Copyright 2025, Met Office Heathrow D-1 and D0 Graphs LVP threshold: Visibility <600 M www.metoffice.gov.uk © Crown Copyright 2025, Met Office Gatwick D-1 and D0 Graphs LVP threshold: Visibility <550 M Cloud ceiling <200 FT www.metoffice.gov.uk © Crown Copyright

Tuesday will bring variable cloud and sunny intervals for many areas. Showers are expected from the start in the west, gradually developing further east into the afternoon. Some of these showers could turn heavy at times, so it’s wise to keep an umbrella handy if you’re heading out. In northern

of England and northeastern Scotland will experience cooler, cloudier conditions due to onshore breezes. These areas may also see brisk winds, especially in the far east, which could temper the warmth felt elsewhere. Friday night will bring a shift in conditions for parts of the country. Low cloud

spells will break through, although a few showers are likely in the northwest. Elsewhere, much of central, southern, and eastern England, as well as the remainder of Wales, will experience variable and often large amounts of cloud. However, there will be some sunshine, particularly in eastern areas

. It became less settled from the 9th onwards, and on 13th/14th there were some large rainfall totals in upland areas of western/southern Scotland and north-west England. The middle part of the month saw generally larger cloud amounts, with spells of rain mainly for Scotland, but from around the 21st onwards

strengthen further. Chance of cloud-free hill tops above 800m: Generally 70%, falling to 30% during the middle of the day. Best chances early evening. Low Cloud and visibility: Areas of cloud down to 600-800m with good breaks and good visibilities between showers. Cloud becomes extensive down

as more organised band of snow sinks south through the afternoon, increasingly wintry to low elevations and with freshening winds. Becoming mostly dry with clear spells through the evening and winds strengthen further, but still the odd blustery snow shower. Chance of cloud-free hill tops above 800m