https://www.mercurynews.com/2019/01/30/bay-area-forecast-rain-expected-later-today-wetter-storm-friday/ > A storm is expected to bring widespread rain to the Bay Area sometime Wednesday afternoon or evening, but the exact timing remains a question. > Meteorologists with the National Weather Service in Monterey agree the storm will deliver about one-half to three-quarters of an inch of rain across the Bay Area. But computer models used by meteorologists are not in agreement as to when the storm will arrive.