Click here or here for the high resolution version of this NASA graphic.
Meanwhile, here's a pic from Meteo France with a much broader view of the South Indian basin, showing both Favio as well as another potential cyclone forming closer to Diego Garcia....
UPDATE: According to the latest advisory from JTWC, Favio is now a mid-range Category 4 storm with 125 knot or 144 mile per hour winds. This is our second Category 4 or 5 storm of 2007 (the first being Dora), and Favio could do some serious damage if it remains this strong, or close to this strong, at landfall. Stand by for more updates....
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Hurricanes can vary dramatically in size, and it's my understanding that there is not any meaningful correlation between storm size and storm strength.