High probability of severe conditions in the forecast.

PROB30 TS

Wind shear or significant gust spread.

VRB25KT

Blowing snow, dust, sand, or smoke reducing visibility.

BLDU

Blowing snow, dust, sand, or smoke reducing visibility.

DU

Thunderstorm activity expected or reported.

CB

High probability of severe conditions in the forecast.

PROB30 TS

Wind shear or significant gust spread.

VRB25KT

Blowing snow, dust, sand, or smoke reducing visibility.

BLDU

Blowing snow, dust, sand, or smoke reducing visibility.

DU

Thunderstorm activity expected or reported.

CB