More electricity blackouts are possible before Sunday as record-low temperatures continue to threaten north and central Louisiana, Gov. John Bel Edwards said Thursday.

Edwards asked state residents to conserve electricity, especially between 7 a.m. and 9 a.m. and between 7 p.m. and 10 p.m., through Saturday morning. Conservation measures can include turning down the thermostat and putting off running dishwashers and washing machines.