Brace yourselves! We're about to go from bitter cold temperatures to heavy snow in Northeast Ohio -- and travel is expected to be hazardous. A previously announced Winter Storm Watch has now been upgraded to a Winter Storm Warning by the National Weather Service in Cleveland. Additional counties are now also under a Winter Weather Advisory. Here's how the weather alerts impact the region... WINTER STORM WARNING In effect from 11 p.m. Thursday until 4 a.m. Saturday... -Cuyahoga -Erie -Huron -Lorain -Medina -Summit In effect from 1 a.m. Friday until 10 p.m. Saturday... -Ashtabula -Geauga -Lake "Widespread snow late tonight and Friday morning will transition to lake effect snow Friday afternoon," according to the weather alert as issued by the National Weather Service. WINTER WEATHER ADVISORY In effect overnight Friday until early Saturday morning... -Ashland -Carroll -Columbiana -Coshocton -Holmes -Mahoning -Ottawa -Portage -Richland -Sandusky -Seneca -Stark -Trumbull -Tuscarawas -Wayne Betsy Kling and the rest of our 3News team have more: https://www.wkyc.com/article/weather/... -- At 3News, we’re not here to tell you the news, we’re here to share the stories that you say matter most to you. Share your ideas, thoughts, concerns and engage in conversations about the communities in which we all call home. Follow 3News on Social: Facebook: / Twitter: / wkyc Instagram: / Visit our site: https://www.wkyc.com/ And be sure to download our app here: https://wkyc.com/app