Heat advisories extended for Bay Area inland locations as hot weather to last into weekend
The National Weather Service said a heat advisory was in effect at 10 a.m. for inland portions of the East Bay and South Bay, as well as the North Bay interior mountains. The advisory was extended through Saturday after forecasters originally said the heat wave would peak on Friday.
In its daily forecast discussion, the Weather Service said Thursday would be the hottest day for coastal and bayshore areas with above-normal temperatures in the 70s and 80s, respectively. However, away from the coast, temperatures will be in the 90s to the lower 100s on Thursday, with some records for the day possible falling.
KPIX First Alert Weather: Current conditions, alerts, maps for your area
While coastal areas should begin to see some relief late Thursday afternoon as onshore wind conditions start to prevail, interior locations will remain in the grip of a heat dome emanating from the Four Corners area of the Southwest U.S. through Saturday with Friday being the hottest day of this round of heat, the Weather Service said.
Further south in the Central Coast area, interior portions of Monterey and San Benito Counties are also under the heat advisory, while areas of the San Joaquin Valley will be under an extreme heat warning beginning at 11 a.m. Friday through 8 a.m. Sunday. The Weather Service said dangerously hot conditions are expected in parts of the Central Valley with temperatures reaching 105, along with warm overnight lows in the mid-70s to lower 80s.
In addition to the high temperatures, forecast models show clouds are moving in from the south as monsoonal moisture reaches the Bay Area and Central Coast, the Weather Service said. While the models show enough moisture and unstable air to support storms, forecasters say there's no strong trigger to set them off, meaning the chance of thunderstorms is low but not zero.
If any storms do form, they're more likely to bring lightning than rain, raising the risk of dry thunderstorms, with the best window for possible storm activity being Friday and Saturday, especially over the Central Coast, forecasters said.
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New York Times
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Hurricane Erin Is Sprawling, and Still Bringing Stormy Seas to the East Coast
Hurricane Erin is expected to turn away from the United States but is likely to bring a dangerous threat in the coming days: rip currents along the East Coast of the United States and Canada, as well as Bermuda and the Bahamas. The life-threatening risks of rip currents were highlighted last month, when Malcolm-Jamal Warner, the actor who rose to fame as a teenager playing Theo Huxtable on 'The Cosby Show' in the mid-1980s, drowned while swimming at a beach on the Caribbean coast of Costa Rica. He was swept away by a rip current, channels of water that flow away from the shore and can drag people along. The National Weather Service has warned that Erin could produce 'life-threatening surf and rip currents, and local authorities have issued warnings for swimmers this week in areas affected by Erin. Rip currents, even from distant storms, are the third-highest cause of death related to hurricanes. At least three dozen people in the United States have drowned in the surf so far this summer, most of them caught in rip currents, according to the National Weather Service, which tracks surf-zone deaths across the country. One swimmer died and four others were rescued from the waters off Seaside Heights, N.J., after they became caught in a rip current on Aug. 11, when lifeguards were off-duty, the authorities said. Earlier in July, Chase Childers, a former minor league baseball player, died after rushing into the surf in Pawleys Island, S.C., to save swimmers in a rip current, the police said. Fatalities do not just occur in oceans. In the Great Lakes region, rip currents caused an average of 50 drownings per year from 2010 to 2017, Chris Houser, the dean of science at the University of Waterloo in Ontario, Canada, said. Can you see a calm strip of water cutting through the waves? Rip currents occur when water flows away from the beach through a narrow channel that has been created by an underwater feature or a sandbar. They are easiest to see from an elevated position like a beach access point, and are harder to spot when a person is closer to the water. From land, a rip current can appear relatively calm on the surface, as a strip of water that extends out from the beach between breaking waves. Its appearance can be deceiving, because the forceful flow of water away from the shore can sweep a swimmer far into the body of water. The current can also appear as a patch of darker water stretching away from the beach, or as a distinct offshore flow. Rip currents are swift and unrelenting. They can move at speeds of up to eight feet per second, which is faster than the pace of an Olympic swimmer. But drownings often happen with far weaker currents, said Gregory Dusek, a senior scientist with the Ocean Service at the National Oceanic and Atmospheric Administration. 'It doesn't have to be moving that fast to cause a problem,' Mr. Dusek said. 'It just needs to be pulling you enough to get you from where you can touch to where you can't.' The currents can occur at any time and in any conditions, but they are most dangerous when waves are two to three feet high, Mr. Dusek added. There is also added risk in late summer, when tropical storm systems and hurricanes can move through a region and prompt strong waves, even on clear, sunny days. 'You can have a storm far away driving pretty large waves, and you can have strong rip currents where you are, even when the weather seems fine,' Mr. Dusek said. Check the surf forecast at your beach. NOAA maintains beach weather forecasts for several popular destinations, which contain information about rip currents and waves, at Surf zone forecasts also assess the low, moderate or high risks of rip currents associated with your destination beach. Some lists of safety tips from government agencies also state the obvious for people dipping into the surf: Make sure you know how to swim. Read signs and avoid swimming near piers. Try to swim at a beach that is under the watch of lifeguards, and ask them about the conditions before you enter the water. Comply with their orders, and read and follow instructions from official posted signs. Do not swim alone or within 100 feet of piers and jetties, because rip currents flourish alongside them, NOAA recommends. Families with children should swim near a lifeguard if there is one. It also helps if children bring something that floats into the water with them, such as a boogie board, a surfboard or a lifejacket, all of which can help weaker swimmers navigate a rip current. Hopefully, you will never need the advice in the next section. Don't fight the rip current. Many people panic when they get pulled into a rip current, which leads them to waste energy and make irrational decisions, Mr. Dusek said. If you find yourself carried off by a rip current, try to relax and evaluate your surroundings. Remember that a rip current will not pull you under, he said. And don't try to swim against it. Not every rip current is the same, and you may use different strategies depending on the water's movement and your swimming abilities, Mr. Dusek said. It is possible that the current itself will circulate back to shore. If so, float. The rip current is generally narrow, so try to escape it through its side, rather than head-on. Strong swimmers should move in a direction that follows along the shoreline, or swim toward breaking waves and then at an angle toward the beach, he said. 'If you don't think you can do that, or you feel like you're swimming anywhere in particular, you want to just float and wave your hands and call for help,' Mr. Dusek said. It's important to stay above the water and avoid exhausting yourself to give time for a lifeguard to reach you or for someone on the shore to call 911. To do so, you can also embrace the 'flip, float, follow' strategy, which involves flipping on your back to float above water and following the current until it takes you past breaking waves or back to shore. How to help someone stuck in a current. Rip current drownings often occur when bystanders wade into dangerous conditions to help another person. To assist someone safely, you can help direct them to swim parallel to the shore or flip on their back to float. If you are near someone stuck in a rip current, alert a lifeguard. If there is no lifeguard on duty, call 911. Even if the person escapes the rip current, they may still need lifesaving support, Mr. Dusek said. For swimmers who are pulled by the current closer to the shore, give them something that floats to hold onto, such as a boogie board or a cooler. If you feel like the only option is to enter the water — and you're a strong swimmer — it's important to still bring a flotation device, Mr. Dusek said. Jenny Gross contributed reporting.
Yahoo
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