TgO Ex19:16 :וַהְווֹ קָלִין וֻבַרקִין וַעְנָנָא תַקִיף עַל טוּרָא‏ : there were thunders and lightnings and heavy cloud cover on the mountain
See the entire entry for braq, barqā n.m. lightning

TgO Ex19:16 :קָלִין וֻבַרקִין וַעְנָנָא תַקִיף עַל טוּרָא‏ :
See the entire entry for qāl, qālā n.m. voice