| Time | Rating | Surface wind | 2,500 ft | 5,000 ft | Low cloud | Est. base | Visibility | Rain | Weather | Freezing level | Carb icing | Why |
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Winds are degrees true / knots, G = gust. 2,500 ft and 5,000 ft winds are the 925 hPa and 850 hPa model levels. Cloud base is estimated as 400 ft per °C of temperature–dew point spread, above the station, and shown only when the forecast has 25% or more low cloud. Carb icing is an approximate reading of the CAA chart; treat any visible moisture (cloud, rain, mist) as serious.
A general guide to conditions around Calne (station 76 m / 249 ft amsl), not a briefing. It combines this station's live readings with the Met Office UK model via Open-Meteo. It has no NOTAMs, airspace or airfield reports. Before flying, check: