Cold air near the surface and heavy rain was the perfect combination for a hail storm that covered all lanes of I-280. The pea size hail even accumulated up to a reported 2 inches sending drivers sliding. This was one of 3 areas to see the slick & icy roads with our latest winter blast. NBC Bay Area's Jean Elle and her crew with the Video as I track the radar. Dramatic hail video @ :44 when you click.