2023 ACWA Spring Conference attendees may now download

our '22 - '23 Water Year Precipitation Forecast for free

(Initially Released on 11/11/22)

We produce California's most accurate quantitative annual precipitation forecast. 

Issued the first week of November, the California Annual Precipitation Tool (CAPT) is an annual water year precipitation forecast that helps you:

Protect life and property while simultaneously supporting efforts to preserve our most precious natural resource: our water.

This is our heartbeat.  This is why we exist.  How can our passion empower you?

Since our inception in '16, our forecasts have successfully verified EVERY year - 7 years in a row.  No other California precipitation forecast has done the same.

ACWA 2023 Spring Conference

 

With this free download, you'll receive the straightforward, easy to read '22 - '23 CAPT Prediction.  How would you and your customers have benefitted if you knew this information back in November?  How would your decisions have looked different?  Join our growing list of subscribers and find out!

COMING SOON!

Our '23 - '24 Water Year Precipitation Forecast Will be Available to Subscribers the First Week of November '23!

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Will it be an above or below average water year? 

A definitive range of expected precipitation, structured in 20% intervals relative to normal.

The CAPT forecast is issued the first week of November.  Once our prediction is made it does not change.

Rob Doornbos,

Owner, Founder & Farmer

Rob Doornbos has been working in the weather business for nearly 30 years. Rob earned his Bachelor’s and Master’s degrees in Atmospheric & Oceanic Sciences from the University of Wisconsin – Madison. He has worked for the National Weather Service in Eureka, CA, the CA-NV River Forecast Center in Sacramento, Weathernews (Director of Data & Aviation Services), Baron Services (Vice President, Research & Development), Vaisala (Director, Development Center for Meteorology), Global Weather Corporation (Director, Forecast Services) and Exelis (Chief Scientist, Weather).

He and his wife, Kelly, live in Chico, CA and concurrently manage their family's rice business. 

Rob Book Farm
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“The California Annual Precipitation Tool (CAPT) was a huge benefit to our organization this year both planning budgets and also planning our strategic communications. This tool turned our efforts from a shot in the dark to planning based on actionable information. I can't recommend it highly enough.

Tim Johnson, President & CEO, California Rice Commission

Rob Hartman
“Reliable predictions of California's Central Valley water year precipitation, made in the Fall, have massive sector-specific and societal benefits.  Significant research investments in seasonal and sub-seasonal prediction are being made elsewhere with only limited expectations for actionable skill.  The 7-yr track record of the CAPT predictions by Weather Tools is unexpected, remarkable and clearly worth paying close attention to.  With add'l validation-based development, CAPT has the potential to revolutionize seasonal precipitation forecasting in California and deliver significant societal benefits.

Rob Hartman, Former Hydrologist-in-Charge, CA-NV River Forecast Center

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"Purchasing a subscription to the California Annual Precipitation Tool (CAPT) from Weather Tools, Inc has proven to be an invaluable asset.  I wholeheartedly recommend this service to any business owner seeking to make data-driven decisions and secure a competitive advantage.  One of the most significant impacts of the CAPT service was on my equipment purchasing decisions.  CAPT called for a significantly wetter than normal water year and that, in combination with several other factors, gave me the confidence I needed to move forward with the purchase of a new harvester.  Furthermore, having a clear understanding of the expected water year and the impact on farmable acreage, I was able to better strategize and optimize my income and tax planning."

 Family rice farmer Don Traynham 

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