Rough surf and strong winds will also impact Southern California. After two moisture-rich storms known as atmospheric rivers. Elsewhere across portions of the Western United States, rainfall totals of 1 to 3 inches are expected. The San Francisco Bay Area saw a wet start to the rainy season, and rainfall totals across the region are staggeringly above normal. Rainfall amounts of 3 to 6 inches, with isolated amounts of 10 inches, are expected across portions of southern California and southern Nevada, which would lead to significant and rare impacts. The National Weather Service issued a flood watch that will be in effect starting at 11am tomorrow through Monday evening across San Diego and Los Angeles counties. The moisture from Hilary will bring the possibility of excessive flooding in Southern California. INTERACTIVE: Look up how climate change is forecast to impact your neighborhood HEAVY RAIN THREAT IN SOCAL Thus, we see a very rapid weakening as the system approaches the California-Mexico border. That temperature drop may not seem like a lot but ocean temperatures in the 70s will essentially kill Hilary and water in the 60s will never support a tropical system. As Hilary moves closer to Baja California, ocean temperatures will quickly cool into the 70s and eventually the 60s along the California coast. Hilary is currently sitting in 85-degree water and will remain in those warm waters through Saturday. NWS Bay Area (NWSBayArea) MaWhile more rain is expected in the last week of March, said Ryan Walbrun, another meteorologist with the weather service, the rainfall is far from. Hurricanes require ocean temperatures above 80 degrees to survive. RELATED: Hurricane categories explained: How strong is each category? OCEAN TEMPERATURES 25, 1939, according to the National Weather Service. No tropical storm has made landfall in Southern California since Sept. near Ojai on the Sisar fault in Ventura County, the USGS said. High totals are also on tap for the Sierra Nevada, but most of that will. By 11 a.m., Hilary made landfall as a tropical storm over the northern part of the Baja California Peninsula in Mexico.Īs Tropical Hilary headed to the region, a 5.1 earthquake struck the area Sunday afternoon, according to the USGS. The highest rainfall totals will latch onto the Eureka Coast, North Bay highlands, Santa Cruz Mountains and Central Coast. Hilary roared along Mexico's Baja California peninsula Sunday and, as expected, was downgraded to a tropical storm with wind speeds at 70mph. SAN FRANCISCO - Tropical Storm Hilary has officially moved into Southern California, bringing heavy rain to many areas and raising concerns about severe flooding and potentially destructive winds across the region. #CAwx #BayAreaWX is no longer a hurricane, but it is still carrying so much rain that forecasters said "catastrophic and life-threatening" flooding is likely across a broad region of the southwestern U.S. Look for light to occasionally moderate rainfall with these showers as they push inland this morning. Scattered rain showers moving inland across the region this morning, particularly the North Bay, East Bay, South Bay and through the Santa Cruz Mountains. Dry weather and cool conditions are forecast from Thursday through early next week. The rain was steady, however, and not heavy enough to trigger mudslides in burned areas, according to the National Weather Serviceįorecasters say that scattered rain showers will continue through Wednesday morning. But it dumped significant moisture at higher elevations, all but ending the extreme fire danger that has threatened those areas for months. The storm left modest amounts in Bay Area cities. The first significant storm of this year’s rainy season passed through Northern California on Tuesday, continuing into Wednesday morning.
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