15 June, 2009

Big thunderstorm

I thought the lightning had fried the wind sensor, but eventually, after resetting the weather station, it came back. The reset knocked out the barometer calibration and I still have to update the accumulated rainfall which has been lost.

23mm of water fell in about 30s

06 May, 2009

New view of weather installation

Using Google street view, see bottom of page. You can just make out the anemometer and wind direction mast on the far chimney stack, the white cylinder on the wall is the outdoor temperature and humidity sensor. The white blob on the ridge to the right is the rainguage. The indoor temperature, humidity and pressure sensor is - indoors.

28 April, 2009

Power failure

RCD tripped at 5am, UPS exhausted at 7am, power restored at 7:30

18 March, 2009

Rearranged the mainweb page a bit

12 January, 2009

added another 2 hPa to pressure

Should be in the middle of surrounding stations now (Kenley, Biggin Hill, London Weather Centre)

04 January, 2009

Pressure adjusted

After reports of being low I have added 4hPa to the pressure

03 November, 2008

Current week graphs are back in the left hand window

Click it for day/month/year, etc

22 October, 2008

wunderground has stopped showing data for this week

Current month does not work either, so I've switched to showing the last three months in the left hand set of graphs

25 March, 2008

Multiple power failures

Exhausted the capacity of the UPS so we have lost all uploads between 10:38 and 14:01 today

04 February, 2008

Lots of problems with CWOP feed into APRS

On 19/1/08 I was prevented from uploading to the APRS server network, on the 21st I found out why. I was sending data at one minute intervals, whilst this makes a nice graph which captures wind gusts, it (along with a large number of other stations) creates too large a load on the servers. There was an announcement on 16/1 which I missed.

http://www.wxqa.com/news.html

The proper answer to this is to change the way some software uploads (FreeWX, which I use, is OK), in order to load balance and avoid many stations trying to upload at exactly the same time on the minute boundary. The short term solution is to increase the upload interval.

I am now using cwop.aprs.net and have reduced my upload rate in line with the recommendations and am back on line.