Citizen Weather Observer Program
The Citizen Weather Observer Program (CWOP) network (originally APRSWXNET) was developed by amateur radio operators as a means of sending weather data for research to NOAA's Forecast Systems Laboratory (FSL) in Boulder, Colorado. Due to its value and success, the program was expanded to collect Automatic Position Reporting System (APRS) weather station data via the internet from non-amateur radio licensed weather station owners as well.
CWOP is a network of over 2,000 privately owned electronic weather stations concentrated in the United States but also located in over 150 countries. Network participation allows volunteers with computerized weather stations to send automated surface weather observations to the National Weather Service (NWS) by way of the Meteorological Assimilation Data Ingest System (MADIS).
After an initial quality check at the FSL, the data is then distributed to relevant educational institutions and governmental agencies, including NWS forecast offices, the National Center for Atmospheric Research, NASA's Marshall Space Flight Center, and the Office of Homeland Security. This data is then used by the Rapid Refresh (RAP) and other forecast models to produce forecasts. Observations are also redistributed to the public.
Current and past weather observations submitted to the CWOP from this site can viwed at the links below.