If you've lived in a tropical climate long enough, you've more than likely seen the spaghetti models that meteorologists show.

WRAL meteorologists use these often when looking at long-range projections for tropical systems, similar to Tropical Storm Erin.

What is a spaghetti model?

Spaghetti models are a visual representation of where the center of a storm can be. The closer they're clustered together, the more certainty there is in a forecast. The farther apart they are, the more uncertainty there is.

You'll usually see the plot start narrow and then widen as it goes out in time.

This has to do with multiple variables in the atmosphere, and how the calculations in each model differ from one another.

What do these plots show about Tropical Storm Erin?

Because Tropical Storm Erin is

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