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  • Farming & Agriculture

  • Media Production Companies

  • Climbing & Alpine Expeditions

  • Event & Vacation Planning

  • Shipping & Oceanic Travel

  • Ski Areas 

  • City & Township Winter Maintenance

I have been using G/WX long range forecast maps as part of my tool kit for a variety of weather critical projects—film production, helicopter skiing operations and avalanche mitigation. Their maps’ accuracy can be uncanny, which combined with other conventional weather forecasting products, offers clients an edge in critical decision making.

Mike Friedman


G/WX can provide no guarantees. This unusual weather research project is now over 30 years old and on-going. The average accuracy of the G/WX Maps over this period has been around 70%.

Maps are provided “AS-IS.” G/WX explicitly disclaims any representations and warranties as to the accuracy, timeliness, or completeness of the maps. In no event shall G/WX be liable for any losses or damages that might arise from the use of the maps, and the user thereof assumes any and all risk associated with such use.

There are no refunds after purchase of G/WX maps or packages.

Verification is recommended as your map period approaches. Guidelines on how to do this are provided in the Verification Guidelines section at the bottom of the Using a G/WX Map page.