Assertion: thunderstorm's updraft | /r/HasProperty | powerful
Facets:
value: during a thunderstorm
type: TEMPORAL
value: occasionally
type: DEGREE
Source sentences:
text: A supercell thunderstorm is characterized by a sustained and powerful rotating updraft (rising air).
text: During a thunderstorm, updrafts are occasionally powerful enough to lift the horizontal spinning row of air upwards, turning it into a vertical air column.