Windrush Weather

Author: Eric Gilbert

  • A little sun, a little rain but more wind

    Thursday saw sunshine and showers with 5 hours of sunshine that did not raise the maximum above average with a peak of 17.8C (-0.8C).

    There were several showers in the afternoon that added 2.0mm to the total for September, now standing at 71.6mm, being 116% of the 35-year average.

    The wind from the south west was very gusty on Thursday with a maximum gust of 22mph.

    The trend of warm nights continued with a minimum of 11.9C, which was 2.7C above the average.

    Friday arrived with bright intervals through variable cloud.

  • Warmest morning for a month

    The disturbed weather continued on Wednesday with 3.4 hours of sunshine and another 2.4mm of rain overnight after a dry day.

    The temperature during Wednesday reached just above average at 18.8C with another very mild night to follow with a minimum of 14.4C and the thermometer rising to 15.2C at 08.00 making it the warmest morning since 25th August.

    Thursday morning saw rain at dawn but slowly the hang back of cloud from the weather front eased away to the east and thinned allowing brief bright interludes at 08.00

  • Rain and more rain!

    Tuesday was another wet day, predominantly in the morning, although welcome sun did break through in mid-afternoon with 4.3 hours that lifted the temperature to 8.4C, just below average.

    Rain during the daylight hours amounted to 10.3mm with another 8.3mm overnight. The total for yesterday being 18.6mm that brought the September total to 67.2mm, which was 6mm above the 35-year average.

    The past night was mild with a minimum of 13.9C, which was 4.7C above the average.

    Wednesday arrived with rain from the hang back of cloud from the overnight rain band but by 07.15 the rain had ceased and the cloud began to thin. By 08.25 there were brief glimpses of the sun.

    The barometric pressure is again today very low with a current reading of 997.3mb, the lowest since 10th August.

  • Two weather fronts produce much rain

    Monday started well with sunshine, 4.5 hours, but a warm front was approaching and by 14.15 the first rain began to fall producing 5.9mm of rainfall. That eased away during the evening but just after 04.45 Tuesday morning a cold weather front arrived with intense rainfall that produced another 23.7mm of rainfall by 08.00 on Tuesday. The rainfall for the past twenty-four hours totalled 29.6mm making it the wettest day since 24th May 2018 when 31.9mm was recorded, which brings the September total to 48.6mm being 79% of the 35-year average.

    The deluge means that the rainfall for September at 48.6mm now exceeds the evaporation total for September, which was 47mm.

    All the cloud and rain has been produced from weather fronts associated with ex-hurricane Humberto, now in the Eastern Atlantic.

    The maximum temperature on Monday was exactly average at 18.6C, which occurred at 12.52, before the cloud increased and rain arrived when the temperature dropped 4C. Overnight the thermometer did not drop below 14.6C being 5.3C above average as the wind continued from the south for much of the past twenty-four hours.

    The barometric pressure has been falling for the past four days, with a minor ridge yesterday, falling 28mb from a maximum of 1035.7mb to 998.7mb today as ex-hurricane Humberto approached.

    Update on Tuesday at 16.15: another 10.3mm of rain since 08.00 with more tonight.

  • Autumn equinox brings changeable weather

    The second rain band on Sunday brought another 5.5mm of rainfall with the cloud thinging in the afternoon to give us 3 hours of sunshine, well down on the 9 hours recorded on each the previous five days.

    The temperature by day rose late afternoon, thanks to some sunshine, to 18.C, just above average and down 6C on the previous very warm day, whereas the minimum overnight occurred at 07.14 this morning with a low of 11.0C, which was almost 2C above average.

    Monday arrived with sunshine in predominantly clear skies as the barometric pressure recovered a little before the next rain band arrives later today.

    The rainfall for September now stands at 19.0mm being 31% of the 35 year average.