Thursday night’s rain storm raced through Napa County, causing pockets of street flooding, stripping trees of their autumn color and briefly knocking out power to 3,000 customers.
Napans awoke to a soggy, leaf-strewn landscape, but the county escaped serious damage, according to early reports.
The storm deposited 1.13 inches of rain at the city of Napa’s Corporation Yard on Jackson Street, while higher elevations got substantially more, according to county gauges.
As of 8 a.m., Mount Veeder recorded 5.93 inches, Mount St. Helena 5.03 inches. The highest total was 6.6 inches at the Hopper Creek gauge next to Highway 29 in St. Helena. Yountville Cross Road received 4.84 inches.
The National Weather Service is maintaining a hazardous weather outlook for the Bay Area through the weekend, with a flash flood watch in effect through Monday morning.
Rain will be heavy at times, especially on Saturday night and Sunday morning.
Pacific Gas and Electric Co. reported 3,000 Napa County customers lost power temporarily during the night. The biggest outage occurred when an electrical pole and power line fell on Berryessa Knoxville Road at about 10 p.m. Wednesday, affecting 1,300 customers, PG&E representative Brittany McKannay said. Power to the last 400 affected customers was restored by 8:30 a.m.
In Napa, 1,000 customers lost power between 4:40 and 5:50 a.m. when debris fell onto power lines on Pine Street, causing an arc, PG&E and Napa fire representatives said. Residents reported seeing flashes of light, Napa fire Capt. Carl Johnson said.
The affected customers were mostly in the vicinity of Pine, Jefferson and Franklin streets, McKannay said.
The storm sent water through the new bypass culverts on Napa Creek and carried some large trees downstream. A contract tree service was called in Friday morning to lift the biggest trees out of the creek near the culvert entrances, clearing the creek for the next storm expected Saturday night.
At about 5 a.m., a large tree branch fell on a duplex in the 2100 block of Redwood Road, damaging the exterior of a house, Napa Firefighter/Paramedic Dan D’Angelo said. The branch hit a fence and the eaves of the roof. No one was injured, he said.
The California Highway Patrol reported minor crashes south of Napa, including two solo spinouts on Highway 29 near South Kelly Road and of Jameson Canyon Road, CHP Officer Jake Ramos said. There were no injuries.
Heavy rain overnight caused flooding that shut down state Highway 12 south of Sonoma Friday morning near Sonoma Creek, according to the CHP. Schell-Vista Fire Lt. Adam Lobsinger said six vehicles got stuck in the rising waters at about 5:30 a.m. near the Highway 121 and Highway 12 intersection. Firefighters pulled seven people out of the waters, he said. Waters were receding as of 9 a.m.
Napa Creek was receding Friday morning while the Napa River continued to rise, according to the Napa County Flood Control and Management District.
Julie Lucido, flood project manager, reported no major problems during the night. Crews continued to monitor creek Friday and will be on call all weekend, she said. If debris accumulate at the Napa Creek culverts, a contractor will be called to remove debris with an excavator.
Phil Miller, Napa County deputy director of public works, said Friday morning that a 1.5 million-gallon storage pond at the Napa Berryessa Resort Improvement District was full. Staff started spraying treated wastewater effluent onto fields, a water discharge permit violation.
The district was fined for past violations but that fine was slashed this summer after the district agreed to accelerate its scheduled improvements at the plant.
Instead of paying $330,000, the district will have to pay a $95,000 fine and spend another $95,000 on upgrading two sewage lift stations in the district. Under the agreement reached with the Central Valley Regional Water Control Board, the district does not face another penalty for discharging treated wastewater effluent this winter as long as the improvements remains on schedule.
All lanes on Highway 128 have reopened after crews cleared a fallen tree and downed wires that blocked both directions of the state roadway near Calistoga in Napa County this morning, according to the CHP.
State Highway 128 was blocked between Tubbs Lane and Bennett Lane at about 1:30 a.m. The roadway reopened at about 3 a.m., according to the CHP.
Bay City News contributed to this story