category one

Weakest storm classification

Category one designates the lowest level in a classification system, typically indicating minimal severity or intensity.

In hurricane ratings, a category one storm has winds of 74-95 mph—dangerous but the least powerful on the Saffir-Simpson scale.

The phrase appears across various rating systems where numbered categories rank things from least to most severe: It's only a category one, but we're still boarding up the windows.

Related

eye wall · wind speed · emergency · mandatory evacuation · evacuation · severe · classification · rating · disaster · warning · alert · winds · storm surge · destruction · insurance · damage · catastrophic · major

Opposites
hurricane intensity scale

category onecategory five

Highest storm intensity rating

category 5 · major hurricane · category four · tropical depression · tropical storm

general severity/importance classification

category onetop priority

Most important item

critical · code red · top tier · negligible · minimal

Family

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Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G