Janice R. Andrews
An atmospheric river is currently wreaking havoc throughout a large portion of Southern California, dumping heavy snow at higher elevations and pouring down rain accompanied by strong gusts. In places like Los Angeles, San Diego, Sacramento, San Francisco, San Jose, and Oakland, more than 20 million people are under flood alerts. It is predicted that Central and Southern California would continue to be at risk of flooding until Friday morning.
After a short break, a stronger atmospheric river is expected to swoop over the area on Sunday, extending the wet weather well into February. El Niño, a natural phenomena in the tropical Pacific that affects the weather globally, is blamed for this pattern of weather.
On Wednesday, the first of the two atmospheric rivers made landfall in Northern California, bringing with it consistent rain that moved into Central California from the south. It’s raining constantly, winding harder, and getting colder in southern California. There is a Level 2 out of 4 risk of extreme rainfall in Southern California on Thursday, and rainfall rates might be higher than one inch per hour.
Through Thursday night, there are flood watches in effect for central California, and another inch of rain is predicted. Through Wednesday night, the coastal ranges saw 2 to 4 inches of rain, while the valley sections saw 0.5 to 1.5 inches. Thunderstorms may occur in the western portion of California, possibly resulting in more rain.
Authorities in San Diego encouraged locals to get ready by issuing voluntary alerts for possible evacuations in areas vulnerable to flooding. Twelve counties have 400 personnel prepared throughout 16 counties, and 12 counties have swift water staff and equipment on standby.
Authorities in Northern California are bracing for up to 4 feet of snow to accumulate at the highest peaks of the Sierra Nevada, in addition to the potential of flooding. This occurs at a time when the snowpack in California, a crucial supply of water, is currently only 52% of what is typical for this time of year.
Looking forward, California is predicted to see showery weather on Friday. On Sunday, Southern California is expected to be pounded by another strong atmospheric river-fueled storm. Forecasters caution that this might be the “largest storm of the season,” with extensive flooding risks and the potential to linger for two to three days. Lower elevations may see snowfall as cooler temperatures are predicted.
