At 10 feet seeing stripes prob not traffic related. I'll put ten bucks that it was an aircraft generated windshear alert. Or possibly, although remote, was going to be a long landing.
As an aside, Remember this when ur buying ur $150 airfare that the guys upfront are trained skilled professionals. Airline companies, marketing and corporate might want you thinking it's like riding the bus but it's serious business. This is usually my brief interjection when a passenger starts complaining to me, soap box off
