Sonoma County officials are prepared to notify residents who will likely be impacted by PG&E’s planned power shut-off this evening, due to extreme weather conditions. PG&E estimates that around 400 customers in Sonoma County will be impacted by a power shut-off. When PG&E does initiate the power shut-off, Sonoma County Emergency Services officials will send out a SoCoAlert to notify residents in advance of potential impacts and to alert them to possible critical communications outages.