To prepare for these extremely cold temperatures, ensure your home and car heaters are working properly, your car batteries have enough cold cranking amps, and dress in layers: http://www.nws.noaa.gov/om/cold/before.shtml Wintry Mix Potential for Friday Night into Saturday…Low pressure moves northeast across the Great Lakes on Saturday as arctic high pressure moves east off the coast. This low may bring accumulating snow Friday night, mixing with sleet and freezing rain Saturday morning followed by rain area wide Saturday afternoon and night. For the latest forecasts and discussions, please monitor www.weather.gov/okx. Nelson Vaz NWS Meteorologist WFO New York, NY
From the Nassau County Office of Emergency Management: Hi folks — The coldest temperatures and lowest wind chills of the 2016-17 winter season are expected Thursday through Friday. • Thursday: Highs in the 20s. Wind chills of 0 to 10 above. • Thursday Night into Friday Morning: Lows 5 to 15 above zero. Lowest wind chills 0 to near 10 below zero. • Friday: Highs 20 to 25. Wind chills moderating.