What IS CoCoRaHS?
You can let the National Weather Service know how much rain, hail, or snow you've measured in your back yard! The Community Collaborative Rain, Hail, and Snow (CoCoRaHS) Network is in place across both Alabama and Tennessee. CoCoRaHS is a unique, non-profit, community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, hail and snow). The program will help meteorologists, hydrologists, and researchers study the variability of precipitation across the Tennessee Valley, and the accumulated data will be available to anyone with a use or interest in precipitation data.
How did CoCoRaHS get started?
CoCoRaHS started because of a devastating flood that struck Fort Collins, Colorado in 1998. When researchers went back to examine the precipitation data, they discovered that the rainfall leading to the flood missed all of the official gages. Colorado State Climatologist Nolan Doeskin developed a new volunteer observing network to fill in the gaps between official gages called CoCoRaHS.
Sounds great! How can I sign up?
There are three options available, depending on where you live and the measuring equipment you have.
Note: If you are already reporting your data to NWS Huntsville as a backyard or cooperative observer, or if you are a member of the CHARM (Cooperative Huntsville Area Rainfall Measurements) network, your data is already being received. You are still welcome to join CoCoRaHS if you wish to to view your data on the CoCoRaHS webpage though.
How can I find out more?
If you'd like to know more about local CoCoRaHS efforts, feel free to contact the National Weather Service office in Huntsville, call the office at 256-890-8503.
To find out more about CoCoRaHS, visit the website at http://www.cocorahs.org.
For more information about the CHARM network, visit their website at http://weather.msfc.nasa.gov/charm/.