Here is this week’s weather forecast by PG&E meteorologist John Lindsey.
Middle- and high-level subtropical cloudiness moved over the Central Coast this weekend and produced sprinkles. Today will be the transition day to warmer weather, as high pressure strengthens through Wednesday. Tuesday is expected to be the first real hot day for the inland valleys of the Central Coast, as a prolonged heat event will likely last into Thursday.
Night and morning marine low clouds and fresh to strong (19- to 31-mph) afternoon northwesterly (onshore) winds will keep the beaches and coastal valleys from heating up too much.
Overall, Wednesday appears to be the hottest day for most locations, with Paso Robles forecast to reach 106 degrees, and San Luis Obispo hitting 88 degrees. Subtropical cloudiness may be thick enough to lower maximum temperatures across San Luis Obispo and Santa Barbara counties, but may also act to elevate nighttime minimums. This subtropical moisture will make it feel even hotter and quite muggy, much like Florida. The monsoon moisture will also result in a chance for afternoon thunderstorms in the Sierra Nevada.
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The high-pressure ridge will continue to hold steady Thursday, but subtropical cloudiness and a little more marine influence should knock down temperatures a bit. There’s also a good chance that we could see sprinkles or light rain showers Thursday, and there’s a slight chance of thunderstorms. The ridge is expected to finally weaken by Friday for generally cooler weather heading into the July 4 weekend.
Speaking of the Fourth of July, marine low clouds are expected to roll in. However, they should remain above 500 feet of altitude, which will allow for good viewing of the fireworks displays along the beaches.
Monday’s surf report
Monday’s fresh to strong (19- to 31-mph) northwesterly winds will generate 4- to 6-foot northwesterly (310-degree, shallow-water) seas (with a 4- to 7-second period) this afternoon into Tuesday.
A 3- to 5-foot northwesterly (290-degree, deep- water) sea and swell (with a 5- to 8-second period) is expected to develop along our coast Wednesday and remain at this height and period through Saturday.
Seawater temperatures will range between 52 and 54 degrees through Saturday.
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At PG&E, your safety is our first concern. It looking hot this week, please practice hot-weather safety:
- Visit PG&E-supported Cooling Centers to escape the heat. For information on Cooling Centers, or to find out if there is one in your neighborhood, contact your local city or county. If your neighborhood does not have a Cooling Center, plan trips to public places with air conditioning such as libraries, movie theaters or shopping malls.
- Avoid strenuous activities in hot, direct sunlight.
- Drink plenty of water, and avoid alcohol or caffeine when the weather is hot.
- Pay attention to your body. Muscle cramps, dizziness and nausea may be signs of a heat-related illness.