Assertion: thunderstorm | /r/CapableOf | become stationary
Facets:
value: on somewhat rare occasions
type: TEMPORAL
Source sentences:
text: On somewhat rare occasions, a thunderstorm can become stationary or nearly so while prolifically producing hail and significant depths of accumulation do occur; this tends to happen in mountainous areas, such as the July 29, 2010 case of a foot of hail accumulation in Boulder County, Colorado.