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Slo County Had Driest January and February in More Than 150 Years — Is This the ‘New Normal’?

After reviewing 153 years of rainfall records from Cal Poly’s Irrigation Training & Research Center, there has never been a back-to-back dry January followed by a parched February in San Luis Obispo County. Over the many decades of rain data, if you saw a primarily dry January, it would be followed by a wet February and vice versa during the peak of our rainy season (July 1 through June 30).

Read more at: https://www.sanluisobispo.com/news/weather/weather-watch/article258890608.html#storylink=cpy

Lessons Learned from Previous California Drought Helpful in ‘Dry Years’

As the rain season comes to a close across Northern California, water districts are keeping a close eye on rain totals that are below average, and water managers are explaining what another “dry water year” means for our region. According to California’s Department of Water Resources, or DWR, the state is well into its second consecutive dry year. That causes concern among water managers. However, it comes as no surprise.

California’s Dry October Could be a Sign of More Concentrated Rainy Seasons

The first part of fall has been dry so far in California, and that trend might continue. UCLA climate scientist Daniel Swain said it’s not unusual for rain to be scarce in October, but that dry conditions – like the ones forecast over the next few weeks – are increasingly being pushed deeper into autumn. “We expect there to be a further concentration of California’s already narrow rainy season into even fewer months during just the middle of winter,” Swain said, as laid out in his recent blog post. Swain’s research suggests this trend is already evident, especially in Southern California.

4 Inches of Rain is all LA Got Last Year

Last year, Downtown Los Angeles got exactly 4.72 inches of rain. That’s measly! It’s smaller than the screen on an iPhone. Less than the length of your sunglasses. Shorter than an average adult hand. And it’s 32 percent of what we normally get. That makes October 1, 2017 through September 30, 2018 the third driest year since record-keeping began way back in 1877. Only 2001-2002 and 2006-2007 were worse.

Southern California, Parched And Wary, Hopes For Rain, Readies For Flash Floods

Southern California got ready Monday for the first storm of the new rain season, due midweek, while also preparing for possible debris flows as the threatening remnants of tropical storm Rosa rolled through the mountain and desert areas. For a time Monday afternoon, authorities issued a voluntary flood evacuation for San Jacinto Mountain communities in the area of the Cranston fire that burned near Idyllwild as Rosa’s clouds headed north from Baja. That voluntary evacuation notice was lifted early Monday evening.