Projects / WeatherGraph

WeatherGraph

WeatherGraph periodically contacts the US National Weather Service and downloads METAR aviation weather information, databases it, then generates a set of rolling graphs suitable for presentation on a Web page.

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Recent releases

  •  22 Jan 2002 02:36

    Release Notes: A fix for a problem with the heat index/windchill calculation. If the temp is between 50F and 78F, the Heat/Windchill will be set to whatever the temperature is.

    •  09 Jan 2002 19:20

      Release Notes: This release uses the US National Weather Service's Nov. 2001 wind chill formula. The new formula uses advances in science, technology, and computer modeling to provide a more accurate, understandable, and useful formula for calculating the dangers from winter winds and freezing temperatures. Clinical trials were conducted at the Defence and Civil Institute of Environmental Medicine in Toronto, Canada and the trial results were used to improve the accuracy of the new formula and determine frostbite threshold values. The new wind chill formula is now being used in Canada and the United States.

      •  24 Jul 2001 18:27

        Release Notes: A bug where the heat index was being calculated incorrectly has been fixed.

        •  27 Jun 2001 18:33

          Release Notes: This release adds support for many user-configurable options, such as graph coloring and size, and also adds support for timezone localization and the option of using either Fahrenheit or Celius scales.

          •  22 Jun 2001 14:27

            No changes have been submitted for this release.

            Recent comments

            01 Aug 2001 19:26 fpineau

            Re: Dewpoint would be better than wind/heat index

            > As a meteorologist, the better thing to
            > do would be to plot dewpoint temperature
            > rather than the heat/windchill. I would
            > make heat/windchill a seperate graph or
            > just have it as a listed item along with
            > the high low....something like current
            > stress index = ###
            >
            > Otherwise, I find this to be a very
            > useful program. Great job.


            I thought about this, but to be most useful for simply seeing what the temperature is like outside, Heat Index and Wind Chill are more appropriate (which was partly why I originally wrote it). It would be different if you were to use it for meteorilogical analysis.

            In version 2.0 of the script, I plan to specifically show dewpoint and/or relative humidity (as well as some other data), but I haven't decided yet how to present it. Possibly (but not necessarily) on another graph.

            I'd also like to include daily high/low and possibly even forecast/actual comparisons.

            01 Aug 2001 19:15 vortmax

            Dewpoint would be better than wind/heat index
            As a meteorologist, the better thing to do would be to plot dewpoint temperature rather than the heat/windchill. I would make heat/windchill a seperate graph or just have it as a listed item along with the high low....something like current stress index = ###

            Otherwise, I find this to be a very useful program. Great job.

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