In a news conference this afternoon, representatives from the Office of Emergency Management and the Sheriff’s Department shared preparations as Hurricane Hilary approaches. Los Angeles County officials urged people to exercise caution over the weekend and, if possible, stay off roads Sunday and Monday, when rainfall from the storm is expected to reach its peak. This is still enough for minor flash flooding, debris flows or landslides - but does not carry the same level of concern we have for the high peaks and their east-facing slopes. Notice much lighter amounts, 1 to 3 inches, closer to the densely populated coastal region. A computer model shows the areas of greatest concern for rainfall for the California area. If there is catastrophic flooding from Hilary, it will happen near or to the east of this yellow strip. Notice the thin yellow line traveling from the Northern Baja just east of San Diego and Los Angles. This is the spine of very tall mountains known as the Peninsular Range. This is where 6 to 10 inches of rain is expected to fall in a short amount of time. This is the 4KM American NAM model that comes out every six hours. With 48 to 60 hours until this event, our high-resolution computer models are showing the areas of greatest concern for rainfall. Las Vegas and other parts of Nevada also face possible floods, and the governor activated 100 members of the National Guard to assist impacted areas. It’s a huge footprint, it goes all the way from the desert out into the ocean,” he said. “This is not like the other storms we’ve experienced. “This is real,” Chris Heiser, executive director for the San Diego Office of Emergency Services, said at a news conference. Officials in Los Angeles, San Diego and other places urged people to take the storm seriously, and to be prepared for flooding and power outages. The storm will bring high winds, up to around 50 mph, but rain and flooding are chief concerns, according to the forecasters. It’s expected to weaken and become a tropical storm by the time it reaches Southern California, which is forecast to occur by Sunday night. Tropical storm warnings extended into Southern California Friday night as Hurricane Hilary, which has been bringing winds and rain to Mexico, approaches the United States. Please click here for the latest updates. Please consult your device documentation for instructions.Coverage on this live blog has ended. On mobile devices, you can save the bookmark as an easy-access icon similar to other apps. For example, if you select "Weather for a location," then select a location, the bookmark will return to your location on your next visit. You may bookmark the URL to return later to the same view with the selected settings. The URL will automatically update as you select the view and settings. This view is similar to a radar application on a phone that provides radar, current weather, alerts and the forecast for a location. This view combines radar station products into a single layer called a mosaic and storm based alerts. This view provides specific radar products for a selected radar station and storm based alerts. This site is organized into views that provide relevant radar products and weather information for a common task or goal.
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