By any measure, Melissa is an extraordinary and catastrophic storm.

By strengthening overnight and then maintaining its incredible intensity of 185 mph, Melissa has tied the Labor Day Hurricane of 1935 as the most powerful hurricane to strike a landmass in the Atlantic Basin, which includes the United States, Mexico, Central America, and the Caribbean islands.

Melissa also tied the Labor Day storm, which struck the Florida Keys, as the most intense storm at landfall, measured by central pressure at 892 millibars.

Overall, Melissa is tied for the second strongest hurricane, measured by winds, ever observed in the Atlantic basin, behind only Hurricane Allen and its 190 mph winds in 1980. Only Hurricane Wilma (882 millibars) and Gilbert (888 millibars) have recorded lower pressures at sea. //

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Hurricane Melissa made landfall in southwestern Jamaica, near New Hope, on Tuesday at 1 pm ET with staggeringly powerful sustained winds of 185 mph. [...] The only mitigating factor is that the storm’s strongest winds are blowing across a relatively confined area, about 20 miles across.
Sustained winds of 185 mph (or nearly) in a 20-mile-wide swath.

For comparison, that's the speed you'd see in a mid-level EF-4 ("devastating") tornado... across a 20-mile-wide path. (I imagine the sustained winds will decrease after landfall, but that's a high enough starting point that a significant reduction can still leave them incredibly high.)