The last day of 2014 sees a change in the weather pattern. This morning we will wake up to another cold and frosty morning but by midnight tonight the temperature will be well into positive figures.
The change has been created by jet stream that will, over the next 24-48 hours, run a path across the UK from W to E. This pattern will increase cloud cover, bring some rain on New Year’s day and elevate the air temperature.
This morning at 08:00 hours the air temperature has barely reached positive figures at 0.3c, however, during the day the temperature will steadily increase and by midnight tonight we can expect a temperature of around 6c. This morning we can expect to see some bright spells but the cloud will increase as the day passes.
In comparison the air temperature at around 08:00 on the 31 December in 2010 was 3.8c, 2011 was 10.7c, 2012 was 10.1c, 2013 was 7.6c and 2014 was 0.3c.
The air pressure charts are showing that the isobars are narrowing during the day which will mean a) an increase in wind speed and b) greater wind chill effect. The “feel” of air will reduce by around 3c.
The wind will be deriving from the SSW-SW for the majority of the day. The average wind speed this morning will be around 4-5mph but as the day passes we can expect this to increase to around 8mph with gusts of around 20mph.
With the increased cloud cover comes the risk of some rain during the latter part of the day but the risk is low at 40%. Tomorrow sees a more significant risk of rain during the afternoon / early evening.
Summary : Cold and bright start. Warming later as the cloud cover increases.
Observations made 08:00 hours Hammerwich, Staffordshire.
Air pressure : 1031.8mb ; Temperature : 0.3c; Wind : calm; Relative humidity : 89%; Rain this month : 38.4mm, Rain this year : 657.4mm