ECs are convective cells often with heavy precipitation.

Parameter	Description
Precipitation	Moderate to heavy rain or snow showers Hail and thunderstorms are likely.
Temperature	Surface temperature and sea surface temperature are forcing features of convection.
Wind (incl. gusts)	Strong gusts are common
Other relevant information	Risk of moderate to severe icing and turbulence Sometimes waterspouts or small tornadoes are observed Poor visibility during heavy snowfall