An official sky cover classification for aviation weather observations, descriptive of a sky cover of 1/8 to 2/8. This is applied only when obscuring phenomenon aloft are present--that is, not when obscuring phenomenon are surface-based, such as fog. A National Weather Service convective precipitation descriptor for a 10% chance of measurable precipitation (0.01"). Few is used interchangeably with isolated. See Precipitation Probability (PoP).