Storm Francis arrives

After a damp start to Monday the afternoon was brighter with 5 hours of sunshine and a peak temperature just above the average (+0.4C) with a reading of 21.4C at 15.52.

The wind strength was moderate on Monday with, during daylight hours, a peak gust of 14mph.

There were a few drops of rain, not measurable, late afternoon on Monday but the real rain arrived overnight beginning at 01.30 Tuesday with an intense burst at 02.15. By the time readings were taken at 08.00, 17.1mm had fallen making the past twenty-four hours the wettest day since 20th July. This rainfall brought the monthly total to 49.3mm, which is still 17.4mm below the 36-year average. The main rain band has now departed as the depression eases north eastwards.

The barometric pressure has been falling since the early hours of Monday as Storm Francis approached the UK. The current reading was 999.2mb at 08.00 and falling rapidly. As the depression deepened the isobars tightened that produced the increase in wind speed since 01.30 Tuesday morning with peak gusts, so far, of 30mph at 07.55, but forecast to increase considerably during daylight hours. The centre of Storm Francis is currently moving northeastwards across Ireland towards the Isle of Man with a central pressure of 981mb. As a consequence the current southerly wind with veer towards the southwest as the day progresses.

Update on Tuesday at 17.50: maximum gust of 48mph at 15.28.