Monday, August 11, 2008

Hurricane Hernan and Lesson in Model Variation

Hurricane Hernan

I have a great image of Hurricane Hernan which I thought I would share. The system is currently in the eastern Pacific moving into cooler waters, thus the reduction in deep convection, but the storm still has great outflow.

Model Variation
If you look down two posts you will see the model output from 12Z yesterday from the European model. A quick glance at the new model from today at 12Z at 216 hours out (to remain consistent) and you will see that the #1 and #2 storms have switched locations. This indicates a change in the mid- to upper-levels which guides the track of tropical systems. If only one of these first two systems develops, the flip-flop in the track could be a major issue in the long term.

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