Glossary Of Model Acronyms


Hello everyone!

In an effort to break down the long list of terms you may see in my discussions or in the discussions of others, here is a list of the model acronyms I often use. While occasionally there will be others, these are the ones I use most often.

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CMC: Canadian Meteorological Centre which provides forecasts for Canada and also hosts the CMC model which provides model output for the whole world. The CMC model is run twice a day.

ECMWF: Euro Model. The most accurate model out there run by the European Centre for Medium range Weather Forecasting. It is run twice a day. Since it is a private company, they charge a premium for full access to the model. Crude images for every 24 hours are available through the Penn State E-wall.

GFS: Global Forecast System. Forecast model run by the US Government 4x a day for the whole world. Generally considered the second best model after the Euro.

JMA: Japanese Meteorological Agency. Crude model run by our friends across the other pond that is useful mainly for large scale events like Nor’easters.

NAM: North American Model. Hi resolution model run 4x a day for North America. Has a number of entertaining biases that make for good laughs. Known well to drop WAY too much precip.

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Reliably hype-free weather info for Western Maine and New Hampshire from amateur forecaster Jack Sillin

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