April 2017 – Mean pressure

Figure 1 – Data courtesy of NCEP/NOAA Reanalysis (anomalies wrt 1948-2014 long-term average)

I’ve just been looking at the mean pressure chart for April 2017, and it was certainly an anticyclonic month with a large +12 hPa anomaly to the west of Ireland which produced a sizeable 1025 hPa anticyclone at 50°N 12°W, and a northwesterly flow across the British Isles. This made April 2017 a very dry and rather mild month across the British Isles, which although cloudy in the far west, was rather sunnier than average elsewhere. April 2017 does look to have a fairly strong resemblance to the April’s of 1967, 1980, 1982, 1995, 2015 and 1997.

Author: xmetman

An ex-metman passionate about all things to do with weather, climate and clouds