From Your Backyard to Better Forecasts

The National Weather Service is calling on Wisconsin residents to help improve weather forecasting. By joining the Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS), volunteers can provide valuable data on rainfall, snowfall, and other weather conditions.

“We are so appreciative of these volunteers,” said Michelle Margraf, Observation Program Leader for the National Weather Service. “Their observations help us understand how the weather is affecting local communities.”

Currently, about 26,000 CoCoRaHS observers share data nationwide, including several hundred in Wisconsin. However, more volunteers are needed, particularly in rural areas. Central and northern Wisconsin, including regions between Stevens Point and Eau Claire, as well as north of Wausau, have a greater need for participants.

Volunteers can provide various types of reports. Some share weekly updates on conditions like drought or flooding, while others submit immediate reports during extreme weather events. Observations can include rainfall measurements using a specialized rain gauge or snowfall depth using a ruler or yardstick. Volunteers can submit significant weather reports, such as hail or high wind damage, in real-time to alert local National Weather Service offices.

“Adding more observations helps create a clearer picture of weather patterns,” Margraf explained. “Just like adding pixels to a photo, more data points give us a sharper image of conditions across the state.”

Farmers, gardeners, and outdoor enthusiasts are especially encouraged to join, as their observations can directly impact local forecasting, drought monitoring, and even federal disaster declarations. Schools can also participate, providing a hands-on science opportunity for students.

“We would love to see Wisconsin take the top spot in volunteer recruitment this year,” Margraf added. “Right now, Wisconsin is competing closely with Minnesota for the top spot.”

To join the network, visit www.cocorahs.org. Volunteers can sign up online or contact a regional coordinator for more information. Reporting is flexible, allowing participants to contribute as often as they prefer.

“Your observations can make a huge difference,” Margraf said. “Even one report can provide vital information to improve weather forecasting and community safety.”