n. Informal
A thunderstorm.
References in periodicals archive ?
To avoid them, one obvious and popular solution is to fly in the morning and early afternoon, landing before the thunderboomers become a factor.
Thunderboomers producing scary winds, freak waves and cloud-to-water lightning aren't fun.
While the thunderboomers of summer are rarely a concern, any foray into the clouds carries a risk of airframe icing.