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Increasing Thunderstorms This Week

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An upper low offshore will approach the coast through the week increasing the threat for thunderstorms across the viewing area. Today the system will be further offshore and thus not able to tap into as much moisture located in the Southwest and that will be the limiting factor today. The low pushes further inland during the week and thus more moisture will be advected into our region, this means thunderstorms will produce more rain and we could see showers outside of thunderstorms. There is good news and bad news when it comes to these thunderstorms during fire season.

The good: rain will help with the fire fight and wash some of the smoke out of the atmosphere. Cooler temperatures and higher humidities also help firefighters.

The bad: too much rain too quickly means flash flooding is possible in already burned areas due to quick runoff. Gusty winds in storms can spread fires quickly and of course lightning can spark new fires.

The ugly: we’re still in the thick of fire season and if this rain doesn’t help, it could be months before we see the rain we need to suppress these fires.

Expect inland areas to continue to see increasing smoke during daytime hours while the coast gets clearer air, then smoke after midnight will move due south and a bit west of current fires when the winds die down and turn more out of the north.

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Meteorologist Megan Parry