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• taf_south_09.pdf

  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

• taf_north_09.pdf

  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

• taf_north_24-feb-25.pdf

  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

• taf_south_09-feb-25.pdf

  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

• Manual on the Digital Exchange of Aeronautical Meteorological Information

  -hours • 6-hour intervals for forecasts valid from 54- hours through 120 hours. Note: Grid point forecasts of turbulence, icing, and cumulonimbus clouds will be provided through 48-hours. Current WAFS grid point forecasts have a temporal resolution of 3-hour intervals from 6-hours through 36-hours

• Parallel Suite 47 (PS47) overview

  components from the Next Generation Modelling System (NGMS).  Key improvements include:  More accurate cloud and fog forecasts for the UK - particularly valuable for aviation.  Improved winter temperature performance, supporting energy, transport and resilience planning.  More realistic precipitation

• NCIC Monthly Summary

  had a dry sunny month, with 65% of average rainfall and 121% of average sunshine overall, but it was wetter than average over much of Norfolk. 1st to 6th Most of the country had a dry bright day with variable amounts of cloud on the 1st, following clearance of patchy fog in the Vale of York and parts

• Microsoft Word - april.docx

  and dry on the 1st, but frontal cloud spread from the north-west into northern areas, bringing rain which then spread south-eastwards overnight 1st/2nd, clearing eastwards on the 2nd followed by a cold north-westerly with sunshine and showers, the showers wintry on high ground and widely producing hail

• caa_verification_202505-may.pdf

  ). 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. Ronaldsway (EGNS) has now been included alongside the other ’9hr North’ airports, but it is not included

• caa_verification-november-2025.pdf

  ). 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. Ronaldsway (EGNS) has now been included alongside the other ’9hr North’ airports, but it is not included