Home Tropical Storm Warning is now in effect for Orange County Tropical Storm Warning is now in effect for Orange County Posted: Friday, August 18, 2023 Tropical Storm Warning is now in effect for our entire forecast area (San Diego, Orange, W Riverside, SW San Bern. counties). Passage of Hilary will most likely be late Sunday afternoon or evening. Here is the 8 PM (8/18/23) bulletin from the National Hurricane Center: https://nhc.noaa.gov/.../ref.../MIATCPEP4+shtml/190250.shtml