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Here is a quick update on new model runs – based on 12z data.

I will focus more on short-term models starting tonight as Isaac nears landfall. Here is one example of a “Rapid Refresh” model. It is run on hourly time steps, out through the next 10 hours.

Looking further ahead, here are two 12z models for rainfall out through 84 hours. Note that the GFS model keeps the axis of heaviest rain further east than the NAM.