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Napa County OES
Tuesday January 3rd, 2023 :: 06:47 p.m. PST


Severe Weather for NapaCo starting 4am Wed 01/04. Possible flood & power outages, exercise caution. More Info in link

Winter weather watch for entire County of Napa Starting 4am Wednesday 01/04. Potential flooding and power outages anticipated due to high winds. Please exercise caution when driving. Additional information and Sandbag information below:

* WHAT...
Winds: From the South 20 to 30 mph with gusts up to 50 mph in valley locations. 30 to 40 mph with gusts up to 60 mph above 1000 feet. Local gusts to around 70 mph coast and highest peaks. 
Rain: Wednesday-Thursday 3”-5” in the valley’s, 4”-6” in the hills, and up to 8”-10” in the mountains. Heaviest rain is late Wednesday morning into early Thursday morning. Friday-Sunday 1”-2” in the valleys and up to 4.5” in higher terrain. Saturday and Sunday look to have the most rainfall but confidence is still low on details.

* IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. 

* ADDITIONAL DETAILS...Saturated soils will allow for trees to topple more easily during this prolonged wind event. The strongest winds will be during the cold frontal passage late Wednesday afternoon through early Thursday morning.
Keep up to date on the changing weather conditions by visiting the National Weather Services website at:
Keep up to date on any local road closures by visiting Zonehaven: AWARE - Zonehaven
Keep up to date on any State Road closures by visiting CalTrans: QuickMap (
Keep up to date on any power outages by visiting PG&E:
Keep up to date on sandbag stations by visiting Zonehaven or
American Canyon & Milton Road Sandbags
City of Napa Sandbags
Wooden Valley & Circle Oaks Sandbags
Yountville Sandbags
Dry Creek & Lokoya Sandbags
St Helena Sandbags
Angwin Sandbags
Calistoga Sandbags
Emergency Services | Napa County, CA (



Exercise caution due to upcoming weather conditions.

Napa County OES
1195 3rd St
Napa, CA 94559

Emergency: 9-1-1
Non-emergencies: 707-299-1892

Alert Details

Severe - Significant threat to life or property
Future - Responsive action SHOULD be taken in the near future
Possible (p <= ~50%)
Meteorological (inc. flood)
Winter Storm Watch

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