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Evacuations Ordered, Roads Closed in California as Flooding Rain Arrives

Heavy rain and mountain snow is spreading across California and will bring the risk of flooding, mudslides and travel delays into Friday. Measurable rain is expected in the state’s largest cities, including in Los Angeles, San Diego, San Francisco and Sacramento. Mandatory evacuations have already been issued for people living near the Holy Fire burn scar due to the potential for flooding and mudslides, while those in Malibu near the Woolsey Fire burn scar have been put on alert for potential evacuation.

Rounds Of Storms To Send Wind, Rain And Snow Into The West Coast This Week

Rounds of rain are expected to soak areas from Washington to Southern California this week. The first storm rolled ashore in Washington and Oregon on Monday and settled into Northern California on Tuesday. Rain is forecast to push farther south across California during Tuesday night. Rain will fall on San Francisco, as well as the Paradise, California, area from Tuesday afternoon to Tuesday night. More rain is in the offing prior to the end of the week. Overall, this first round will bring mostly rain, but the higher elevations of the Cascades in Washington are likely to receive snow.

Southern California To Face Enhanced Fire Danger Through Start Of November

Locally gusty winds, warm weather and no signs of needed rain returning will keep the fire danger elevated across Southern California through the start of November. November is expected to pick up where October ended with winds blowing over parts of Southern California. “While the peak of the Santa Ana wind event occurred on Wednesday morning, locally gusty winds can persist in the wind-prone areas of Southern California late this week,” according to AccuWeather Meteorologist Maggie Samuhel.

Fire Danger To Persist Into Midweek In Southern California

While the peak wind speeds are in the past with the season’s first Santa Ana wind event, gusty winds and a heightened fire threat will persist into Wednesday across Southern California. Santa Ana winds are dry, gusty winds that blow towards the shore from inland desert regions, typically across Southern California during the autumn months. While travel disruptions, flight delays and the risk of property damage and power outages will diminish on Wednesday, the dry air and a breeze will continue to cause some problems.

Rosa and Non-Tropical Storm to Deliver Dangerous Flooding, Drought-Busting Rain in Southwestern US

Rosa will spread the risk of life-threatening flash flooding over the interior Southwest, while a non-tropical storm spreads soaking rain into much of California this week.

1st Measurable Rain Since May To Follow Rosa Into California

While most of California will miss out on Rosa’s soaking rain, a storm on its heels will bring the first measurable rain since May to San Francisco, Los Angeles and other cities Tuesday into Wednesday. In California, the rain and flood risk associated with Rosa is expected to remain confined to the state’s southeastern corner early this week. Rough seas stirred up by Rosa will still continue to plague Southern California through Monday. Rip currents can endanger surfers or anyone who attempts to enter the water, and minor coastal flooding may occur at high tide.

Wildfire Risk Likely To Increase Into Late September As Hot, Dry Weather Builds Across West

The western United States remains a tinderbox, and wildfire conditions may worsen as September weather patterns progress. A persistent northward bulge in the jet stream allowed temperatures to soar to well above average and at times record levels in parts of the West this summer. That same weather pattern may return later in September. Most of the large wildfires in California that have burned 875,000 acres as of Aug. 28 are now mostly contained. However, multiple large fires in the Northwest continue to burn with with substantially less containment.

Heat To Build, Elevate Fire Danger In Southwestern US Next Week

Near-record heat will set the stage for a heightened risk of wildfires in the southwestern United States, including Southern California, next week. While the Southwest is no stranger to intense heat in the summer months, the upcoming pattern is likely to put several decades-old high temperature records to the test. The area of high pressure that has brought record-breaking temperatures to the South Central states will build westward from Sunday into the middle of next week, according to AccuWeather Senior Meteorologist Ken Clark.

Dousing Rainfall To Remain Absent From California Into Late July As Wildfire Season Ramps Up

As wildfires continue to char land in California, mainly dry, warm weather will provide little to no relief for firefighting efforts heading into the peak of fire season. According to the National Interagency Fire Center, the number of wildfires and acres burned so far this year has nearly kept the same pace as 2017, which was one of the most destructive fire seasons on record. Sixteen active fires are burning across California as of Sunday evening, July 15, according to Cal Fire.