BATON ROUGE - Streets north of downtown were impassable Tuesday afternoon after rain dumped inches of water, prompting a flash flood warning.

The weather alert should expire at 4:15 p.m. as long as it's not extended, WBRZ Storm Station meteorologists said.

Monitor traffic conditions live: Click HERE for the WBRZ traffic map.

The Scenic Highway underpass below US 190 was flooded around 2:30 p.m. Tuesday.

Stream WBRZ newscasts for late-breaking weather and traffic information Tuesday afternoon: Click HERE.

WBRZ Storm Station Chief Meteorologist Josh Eachus said the areas experiencing flooding took on about three inches of rain in an hour Tuesday afternoon.