CoCoRaHS ~ because every drop counts! (Citizens and schools can help measure precipitation)

CoCoRaHS (pronounced KO-ko-rozz) is an acronym for the Community Collaborative Rain, Hail and Snow Network.

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 National Oceanic and Atmospheric Administration (NOAA) and the National Science Foundation (NSF) are major sponsors of CoCoRaHS. Other organizations have contributed either financially, and/or with supplies and equipment.

CoCoRaHS has over 20,000 volunteer observers in all 50 U.S. states, Puerto Rico, the U.S. Virgin Islands, Canada and the Bahamas. Of the network’s 333 coordinators, 254 work closely with NOAA.

By using low-cost measurement tools, stressing training and education, and utilizing an interactive website and apps, the aim is to provide the highest quality data for natural resource, education and research applications.

Why is there so much interest in rain, hail and snow?

Precipitation is essential for life. It varies greatly with topography, storm type and season. It really is true  that  it  may  pour  on  one  side  of  the  street and be dry on the other. A portion of a field may be pounded by hail while others nearby receive no damage. Snowfall may pile up in one neighborhood and only dust another. Rain, hail and snow are fairly easy to measure, and the data collected are very important.

Who uses CoCoRaHS?

CoCoRaHS is used by a wide variety of organizations and individuals. The National Weather Service, other meteorologists, hydrologists, emergency managers, city utilities (water supply, water conservation, storm water), insurance adjusters, USDA, engineers, mosquito control, ranchers and farmers, outdoor & recreation interests, teachers, students, and neighbors in the community are just some examples of those who visit their Web site and use the data.

What does a volunteer observer do?

Each time a rain, hail or snow storm crosses your area, volunteers take measurements of precipitation from as many locations as possible. These precipitation reports are then recorded online at www.cocorahs.org or through CoCoRaHS’ app.

The data are then displayed and organized for many of their end users to analyze and apply to daily situations ranging from water resource analysis and severe storm warnings to neighbors comparing how much rain fell in their backyards.

It’s easy to join, takes only five minutes a day and is a fun way to learn about weather.

People of all ages can help. The only requirements are an enthusiasm for watching and reporting weather conditions and a desire to learn more about how weather can affect and impact our lives.

Complimentary training is provided to help you become an effective weather observer. Check out your state page for a list of current training sessions in your local area.  If none are taking place at the current time, CoCoRaHS has online and PDF Training Slideshows.

Can schools participate?

Absolutely! A great benefit of CoCoRaHS is that it provides real science activities for the classroom in public, private, and home schools. Over the last several years CoCoRaHS staff has worked with science teachers to develop a series of lesson plans and activities. These lesson plans are available for a variety of grade levels and are built around CoCoRaHS’s emphasis on measuring precipitation.

Watch and share below short CoCoRaHS for Schools video…

 

CoCoRaHS also has lesson plans and activities developed for the 4-H Program that are aligned with National Science Education Standards (NSES) for grades K-4, 5-8 and 9-12. Visit CoCoRaHS for Schools to learn how your school or program can join.

Help spread the word

Please take a moment to share this post and tell a friend or neighbor about CoCoRaHS exciting grassroots effort of citizens measuring precipitation in their own backyards. Again, it’s easy to join, takes only 5 minutes a day and your observations give scientists an ever clearer picture of where and how much precipitation falls throughout our communities.

Learn more about CoCoRaHS at www.cocorahs.org and follow them on their blog, Facebook and Twitter and get involved!

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