Back-to-back storms have characterized this winter in ways unseen since the nineties. Flash flooding in low-lying areas on surface streets, freeways, busy city intersections and residential zones. Landslides on forested and urbanized slopes closing coastal highways and threatening homes. Washouts that swallow portions of piers and historic promenades have been

POTUS? PoMo? No it’s POPOS: Privately Owned Public Open Spaces. Throughout SoMa and the Financial District, these little parks, atriums, alleyways and rooftop gardens are nestled in private buildings and totally open to the public — for free.