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Weather Report with Phil Thomas

Autumn begins

Posted on September 21 2013 at 12:52:34 0 comments

Alvechurch sunset

Alvechurch amateur weatherman Phil Thomas records the changes.

It was a very warm start to September, with a maximum of 26.0C on the 4th. The weather turned much colder from the 5th onwards, with only one day reaching the 20C mark at 20.4C on the 12th, although there were signs of a warmer spell after the time of writing on the 20th.

Rainfall was around normal with about 75% of the month’s average. Sunshine at 74 hours was just 59% with only 10 days left till the end of the month.

September 2013 (to 20th)
Mean Max   18.1C 0.1 below average
Mean Min   8.7C 0.9 above average
Mean         13.4C 0.5 below average
Rainfall   46.0mm   75.8% of average
Sunshine   74.1 hrs 58.8% of average

August had been much hotter, starting with a maximum of 30.6C on the 1st. This was the highest maximum of 2013, and the highest recorded at my site since 2003.

Temperatures were near or slightly above normal for the rest of the month with the mean of 0.7 above average; rainfall was near average and sunshine just below the local norm.

August 2013
Mean Max   21.8C 0.5 above average
Mean Min   12.6C 0.9 above average
Mean       17.2C   0.7 above average
Rainfall   53.9 mm 104% of average
Sunshine   135.1 hrs 90% of average

Summer Means
Mean Max   21.7C 1.0 above average
Mean Min   12.0C 0.8 above average
Mean         16.8C 0.9 below average
Rainfall   166.1mm 96% of average
Sunshine 516.6 hrs 116.8% of average

Outlook
Going into October, it seems to be drier and a little warmer than most of September. The outlook further into the month is a little more changeable with a wetter spell later in the month.

Weather balloon launch

I recently attended the Royal Meteorological Society Conference at Reading University, where a group of us launched a weather balloon with a Meteo Sonde (small weather station) attached.

Changes in temperature, humidity and pressure were relayed back to the computer at one-second intervals until the balloon burst up in the stratosphere.

The readings were photographed at around 38,000ft and the balloon was about 20 miles south-east of the launch site, travelling towards Holland!

Above: Balloon launch. Top: Alvechurch sunset.

More information at http://www.alvechurchweather.metsite.com  You can now see an improved HD weather-cam, updated at one-minute intervals, at: http://www.alvechurchweather.metsite.com/webcam_alvechurch.php

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