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20 | 11 | 2008
Ottery St Mary Weather Station

 
The Station is now uploading data to the APRS System as part of the Citizen Weather Observer Program.

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Welcome to the Ottery St Mary Weather Station, which is located near the Centre of the Town, giving 24 hour Weather Updates from the Station, and Hosted on a Server located in Ottery itself.
mast
The Station is based on the Davis Weather Monitor II Console and instruments. These are located on the Antenna Mast in the Garden, in the best available sensor locations available at the site. The Console is then routed through a WeatherLink II Datalogger, and into an Intel Core Duo E6550 based VMware Host Server.

The Virtualised Weather Server is running Apache2, PHP5 and mysql5, as well as Weather-Display and WeatherDisplayLive. The station is backed up with UPS and battery backup for the Console. The Datalogger also has memory for 30 days of weather data in the event of software failure / hardware outage. Weather Data is backed up externally to a Flash Drive in case of Server crash.

Stevenson ScreenLong term Trending of weather data has started now that an archive of more than 12 months has been recorded. This archive is kept in a mysql database, with a record being committed every 10 mins. This data is used for the 24 Hour graphs seen on the site, along with further data extracts that are in the process of being written. The Custom Graph facility provides the on-line lookup of any of the recorded weather data since the start of the station in April 2006.

Supplementary Sensors based on 1-wire technology will be used for Humidity, Temp, Solar Intensity, Leaf Wetness and Lightning. These are logged with the WD software and displayed. This is an Experimental setup, to add functionality to the station in the near future, when they have been fully tested and calibrated to known standards. The Whole Weather Station consumes 64 watts of electricity over an hour, and has been designed to eventually be run from sustainable energy.

The station was installed in March 2006, and data is available via this website, fed from the local sensors and METAR data from EGTE (Exeter Airport) which is approx. 4 miles away from this location.

The Software running the Website is WeatherDisplay and WeatherDisplayLive, which are configured to maintain the data, and display it efficiently. These products are available from the UKWeathershop.

ConsoleOther software used, such as the dynamic graphing code using jpgraph was written by the author, which is available on request.

A recent addition is the Local Area Forecast, which uses the WXSIM software. This local atmospheric modelling application provides accurate weather forecasting for the local area (-/+ 10 Miles).

Initial indications are that the WXSIM forecast is extremely accurate, and on many occasions, superior to the Met Office forecast for that day. A free to subscribe, daily e-mail is available from this site.

 


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This information is provided for information only, and is not designed to be an official source of meteorological data. Please do not make life dependant decisions based on this data.

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Current Conditions
WXSIM Local Forecast
Weather Pixie
Weather Watch