Isolated Showers and Storms Today, Then Dry and Less Humid

A passing shower or storm is still possible today. Less humid conditions will develop this afternoon though as northwest winds increase to 10 to 20 mph. A stretch of dry and pleasant weather is in store through the weekend. Read More >

Coop Home

Informational Links

Coop Observations

Sources of Data

Becoming an Observer

Welcome to the NWS Grand Rapids Cooperative Observer website! These pages were designed to highlight the important contributions of our cooperative observers and to provide access to the COOP data, and other sources of weather and climate data. Weather data comes from a wide variety of sources, including satellite, remote sensors, radars, automated observing stations, and volunteer cooperative observers. Each and every day, a wide spectrum of users access these weather data to solve problems and plan their lives. Whether it is a farmer in Michigan, a climate scientist in Europe, or a weather enthusiast in New York, the weather data that our cooperative observers collect has a profound impact on society. These pages were designed to help our customers access COOP and other sources of data, describe the uses of data, explain how to become an observer, and acknowledge our award winning COOP observers.

Additional NWS Cooperative Observer Program Links: Background Information for the NWS Cooperative Observing Program COOP Program Fact Sheet Directions for measuring Snowfall Information on the Proper Siting of a Weather Station COOP Downloadable Forms COOP Training Materials WxCoder Instructions for the B91 Form

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