Weather model resolution

In general, the higher the resolution of a model, the greater the precision.  Remember that a higher resolution model has a smaller grid size.  For instance, a 12km model is lower resolution than a 2km model.

Below is a comparison between a 12km resolution model (which is the standard resolution for the NAM model) and a 2km model for San Francisco Bay.

Here is a model output from a 12km and 2km for the same time period. Which looks more precise to you?

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