Snowy and icy conditions are causing road closures and delays across the TMJ4 viewing area.All northbound lanes of I-41 near North Avenue in Wauwatosa are closed. The Milwaukee County Sheriff's Office is assisting several drivers whose vehicles became disabled in icy conditions. Deputies closed the northbound lanes just before 7:30 on Thursday morning. Watch: How to ready your vehicle for winter driving conditions: How to ready your vehicle for winterThe closure is expected to last at least two hours. In addition to that closure, MCSO deputies are also handling lane closures on the Marquette interchange. All lanes are closed on the I-94 eastbound ramp to I-43 southbound/I-94 eastbound. MCSO says the system ramp is "ice covered" which is affecting all lanes there. There is a disabled vehicle on the ramp. That closure is expected to last at least an hour. There's another closure on I-94. WisDOT says eastbound lanes are closed past the WIS 26 ramp because of a crash. That's near Johnson Creek. That closure started around 9:20 on Thursday morning. Another closure to keep an eye on is affecting commuters near Wisconsin Avenue on I-43. MCSO is handling a crash there. Two right lanes headed southbound are closed. In Waukesha County, there were 150 crashes by 10:00 Thursday morning, according to a county spokesperson. That spokesperson says crews were out starting at 5:00 a.m. with brine to pre-treat roads. More staff came in around 7:00 a.m. when conditions began to worsen. As winds increased and temperatures dropped, road conditions began to deteriorate a county spokesperson says plow drivers struggled to get up hills. Snow removal efforts are still going as of 11:30 a.m. County leaders say, with the timing of the snow and morning rush hour, plow drivers are trying to catch up. The Wisconsin Department of Transportation is reporting several crashes and slideoffs throughout the area. You can check current road conditions here. Its about time to watch on your time. Stream local news and weather 24/7 by searching for TMJ4 on your device.Available for download on Roku, Apple TV, Amazon Fire TV, and more.Report a typo or error // Submit a news tip