Examples:

/WV 02009KT Wind 20° at 9 kt.

/WV 28057KT Wind 280° at 57 kt.

/WV 350102KT Wind 350° at 102 kt.

Turbulence intensity, type, and altitude are reported after wind direction and speed.

Duration (intermittent (INTMT), occasional (OCNL), or continuous (CONS)) is coded first (if reported by the pilot), followed by the intensity (light (LGT), moderate (MOD), severe (SEV), or extreme (EXTRM)). Range or variation of intensity is separated with a hyphen (e.g., MOD-SEV). If turbulence was forecasted but not encountered, negative (NEG) is entered.

Type is coded second. CAT or CHOP is entered if reported by the pilot. High-level turbulence, not associated with clouds (including thunderstorms), is reported as CAT.

Altitude is reported last and only if it differs from the value reported in the altitude/flight level (/FL) group. When a layer of turbulence is reported, height values are separated with a hyphen. If lower or upper limits are not defined, below (BLO) or above (ABV) is used.

Examples:

/TB LGT Light turbulence.

/TB LGT 040 Light turbulence at 4,000 ft MSL.

/TB OCNL MOD-SEV BLO 080 Occasional moderate to severe turbulence below 8,000 ft MSL.

/TB MOD-SEV CAT 350 Moderate to severe CAT at 35,000 ft MSL.

/TB NEG 120-180 Negative turbulence between 12,000 and 18,000 ft MSL.

/TB CONS MOD CHOP 220/NEG 230-280 Continuous moderate chop at 22,000 ft MSL, negative turbulence between 23,000 and 28,000 ft MSL.

/TB MOD CAT ABV 290 Moderate CAT above 29,000 ft MSL.

Turbulence reports should include location, altitude (or range of altitudes), and aircraft type, as well as, when reported, whether in clouds or clear air. The pilot determines the degree of turbulence, intensity, and duration (occasional, intermittent, or continuous). Reports should be obtained and disseminated, when possible, in conformance with the Turbulence Reporting Criteria Table in the AIM, Chapter 7, Section 1, Meteorology.

Icing intensity, type, and altitude are reported after turbulence.