[Update: Dec. 14, 2 p.m.] The evacuation order for the Gaviota area has been lifted, but Refugio Road is open only to residents. Crews continue to clean up in the area.
[Original story] The cold Pacific waters that cause a La Niña system are controlling the weather this rain year — as well as feeding tornadoes in the Midwest — but last night’s rainfall totals were astonishing. At San Marcos Pass, 7.58 inches fell, and 5.65 inches at Gibraltar Dam — the two highest recorded by the county hydrology gauges for the storm.
Gibraltar Reservoir’s current capacity nearly doubled from 3.8 percent on December 13 to 6 percent on December 14. Though the creeks ran well at the height of the storm at around 4 a.m., the precipitation is soaking into the thirsty soil. Lake Cachuma — which is fed by the Santa Ynez River — increased slightly by about 612 acre-feet, raising current storage to 92,106 acre-feet out of a possible total of 193,305. Gibraltar’s dryness, watershed, and relatively small size accounted for the numeric increase, and Cachuma’s level went up mostly thanks to direct rainfall, said Shawn Johnson, senior hydrologist for Santa Barbara County.
The rain along Gaviota was described as “super gentle, through and through” by Guner Tautrim of the Orella Ranch, who noted they got about two inches along the coast and more than five inches at the top of the ridge at Refugio. A few landslides dropped mud and rock on the road, and high winds sent a sailboat into the beach in Santa Barbara. But very little damage was reported by both fire and law enforcement officials, apparently caused by the wind: a downed wire off Foothill Road, broken tree branches, trees that damaged a structure and vehicle in the city. The day after, however, has been one of sporadic power outages downtown.
Just four months into the rain year, which runs from September to August, this storm puts the county at 127 percent of its normal-to-date rainfall, but at 25 percent for the normal-water-year rainfall countywide. La Niña systems are typically drier, and the long-range forecasts point to a drier, hotter 2022. “We still have January and February to go, which on average are wetter than December,” said Mark Jackson with the National Weather Service. “We can at least cross our fingers that the long-range outlook is off this season.”
Correction: Thanks to our astute readers, we correct this story to state it is colder waters welling up in the eastern Pacific that cause a La Niña condition as the warm waters stream to the west.