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widely from late morning onwards. After another bright, cold start on the 2nd, with isolated showers over northern counties and locally along the south coast, cloud increased by midday with showers occurring quite widely. All areas were cloudy and windy on the 3rd, with rain already in the west
who adopt a more conservative approach. Unlike the SQI more than one category threshold is used by the GSS (see table 1). The Met Office assess all the TAF cloud base and visibility categories defined by ICAO. At the time of writing, the following categories are used for TAF assessment: Surface
those who adopt a more conservative approach. Unlike the SQI more than one category threshold is used by the GSS (see table 1). The Met Office assess all the TAF cloud base and visibility categories defined by ICAO. At the time of writing, the following categories are used for TAF assessment: Surface
who adopt a more conservative approach. Unlike the SQI more than one category threshold is used by the GSS (see table 1). The Met Office assess all the TAF cloud base and visibility categories defined by ICAO. At the time of writing, the following categories are used for TAF assessment: Surface
to be a cycling instructor - so I’m often out and about. Since getting more into photography, I also tend to use those activities as an opportunity to take photographs. I can spend an hour or more waiting for the sky to change to capture sunsets and sunrises, different cloud formations and for colours to emerge
) - - Integrated Diffuse Downward SW radiation kJ/m2 Hourly to T+360 (6) - - Instantaneous SW is the power (per unit area); integrated SW is the energy (per unit area) over the previous hour, commonly expressed as kWh (1kWh = 3600kJ) Cloud Cloud Amount < 200feet oktas Hourly to T+360 - - Low cloud amount
). Overleaf are a series of plots showing the Gerrity Skill Score in relation to the agreed performance measure for forecast Cloud Base and Visibility at airports in receipt of 9, 24 and 30 hr TAFs. The values obtained range from 0 to 1, where 1 indicates perfect forecasts every time, the value we aspire
). Overleaf are a series of plots showing the Gerrity Skill Score in relation to the agreed performance measure for forecast Cloud Base and Visibility at airports in receipt of 9, 24 and 30 hr TAFs. The values obtained range from 0 to 1, where 1 indicates perfect forecasts every time, the value we aspire
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. The lightning information from LEELA is delivered in Met Office bulletins, 24 hours a day, 365 days a year. LEELA is more sensitive to cloud to ground lightning than in-cloud lightning and does not discriminate between these different forms of lightning in its bulletins. Resolution: Although LEELA
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