(more photos)
Location: The rooftop of the Helwig Recreation Center.
Weather Observations As Of: 11/22/08, 00:04:10.
Sunrise: 06:50. Sunset: 16:25. Moon: Waning 29% Full.
NPU Forecast Text: Partly cloudy with little temperature change.
See the past week/month/year page for graphs of this archival data.
Note that as testing of the station ended at 1 pm, August 2, 2007, all data prior to that date is incorrect, and statistics calculated using that data will be skewed. Current conditions, the forecast, and data since 1 pm, August 2, 2007 are correct.
Temperature dial: The blue needle and number shows the current temperature (in degrees Fahrenheit). The grey needle and number shows the current heat index/wind chill (in degrees Fahrenheit), as applicable. The red and blue ticks show the day's high and low temperature (in degrees Fahrenheit), respectively.
Humidity dial: The blue needle and number shows the current relative humidity, in percentage points. The red and blue ticks show the day's high and low relative humidity (in percentage points), respectively.
Wind dial: The blue needle and number shows the last observed wind direction and speed (in mph), respectively. The red tick and number shows the direction and speed (in mph), respectively, of the daily high wind. (Wind direction is the direction from which the wind is blowing from.)
Precipitation dial: The blue needle and number shows rainfall over the last day. The grey tick and number shows the net precipitation, i.e. rainfall minus evapotranspiration, over the last day (a positive number means a net gain of precipitation and a negative number means a net loss). Snowfall is not measured, and melting snow that has collected on the rain gauge may skew measurements.
Storm definition: A storm is defined as starting when the rain rate is greater than 0.05 in/hr. A storm is assumed to be finished when 12 hours have elapsed without any rainfall.
Our station is a Davis Instruments Wireless Vantage Pro2 Plus™ with 24-Hr Fan Aspirated Radiation Shield. The approximate coordinates for the station are 41.97 deg N, 87.71 deg W, and 617 ft above sea level.
For photos and more information related to this and other weather stations at North Park, please see the department's weather index page and this more detailed description of the Helwig station.
A GNU/Linux server in the Physics Department retrieves the data using wview 3.3.0, a collection of open-source (GPL) programs that interface with the data logger and generate the HTML pages. New data is uploaded to this page approximately every minute, and the web page is automatically refreshed every 2 minutes.
