Tuesday 12th August
Hottest day and warmest night. The temperature rise was relentless on Monday that saw the thermometer reach a peak of 29.7C at 15.16 being a significant 7.6C above my long-term average and the hottest day since 12th July (31.0C). A trough of low pressure, with associated cloud, then began to filter across that halted any further rise although thermometer then settled about 28C for several hours under calm conditions. The past night was mild under the blanket of cloud for most of the night that restrictedly the loss of warmth into the atmosphere, thus a minimum 16.2C was logged at 05.49 at the time of calculated sunrise.
The first rain drops were observed from the thickening cloud at 18.10, but only a few drops. The air has been very dry so often the first light rain in these recent conditions can dry up as they fall. More consistent but light rain began at 21.30, for a brief period, but then a little heavier and longer from 00.30 to 02.00, that produced a total of 2.0mm.
Tuesday began with the back edge of the weather front blocking out any sunshine until 06.30, that then lifted the temperature to 19.2C at 08.00, which made it the warmest start to a day this month at that time. However, residual thin high cloud limited the rise in temperature for the first part of the morning. This is likely to be the hottest day of the week.
The anticyclone has edged further towards the Continent that will today bring an easterly flow of air, later backing into the south. The barometric pressure has fallen a significant 9mb since yesterday as a low pressure edges in from the Atlantic, but not sufficiently close to affect our weather today. The pressure reading at 08.00 in Marlborough was 1015.5mb. Without any weather fronts or troughs, today will be very hot.
The Savill Garden is “a hidden gem in the heart of Windsor Great Park, commissioned by King George V and establish in 1932 by Eric Savill”.
Update at 15.30: Temperatures reached today…….
27C at 11.01
28C at 11.22
29C at 11.58
30C at 13.19
31C at 14.07
32C at 15.26
32.8C at 16.46