Weather table notes and data sources:

The US Government's National Weather Service provides XML based observations and forecasts. The closest NWS station to a webcam may be miles away, but NWS "point" forecasts predict conditions at any latitude/longitude location. To see the conditions and point forecast for a webcam location, click on the webcam's dot and then click the Weather button. The "feels like" values shows wind-chill or heat-index temperatures. Note that we refer to wind direction with respect to where it blows from, so the arrow on the chart for a west wind points to the east. Sometimes the NWS forecast shows liquid precipitation values and sub-freezing temperatures, but no snow forecast. I don't know why, but usually, the liquid amount in these cases is small. The traditional snow ratio is ten inches of snow per inch of liquid precipitation, but the temperature, humidity, wind, and other conditions all affect snowfall, and accurate forecasts require math that I'm too lazy to program.

There is some forum traffic around the Internet about problems with the NWS feed, and I have worked around some issues. There are commercial feeds that are more robust in some ways, but I figure that we taxpayers are paying for the government data, and there's more data that I can even display on my site, so I have stayed with the government feeds. And overall, it's pretty reliable.

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