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ST. George — A winter weather advisory is in effect for Utah's Southern Mountains, Washington, Iron, Beaver, Garfield and Kane counties and the towns of Brian Head and Alton from noon Wednesday until 11 p.m. Thursday.

The advisory also includes Mohave County, Arizona, and is in effect from 1:00 PM Wednesday to 5:00 AM Thursday (MST).

Five to 10 inches of snow is expected, the National Weather Service said in a news release. Motorists are reminded to plan for slippery road conditions, slow down and use caution while driving.

The Utah Highway Patrol is reminding drivers to keep a few helpful habits in mind while behind the wheel to stay on top of winter road conditions.

• The posted speed limits are for dry, ideal conditions. If it is wet, snowy or icy, you must drive below the speed limit.
• Accelerate slowly, brake gently, and avoid sudden turns.
• Snow or slush can build up between the lanes, making it very slippery and potentially causing you to lose control. Avoid them if possible.
• Bad weather increases the risk of a collision. Seat belts save lives.
• Once the harness is snug, place a coat or blanket around your child.
• Four-wheel drive helps with traction, but it doesn't help with stopping or turning. And that can create a false sense of security – you still need to slow down.
• Be especially careful on bridges. The road on either side might just be wet, but the bridge could be icy.
• If you find yourself behind a snowplow, stay behind the snowplow and use extreme caution when passing. Never pass on the right side.
• If you begin to skid, ease off on the accelerator and turn in the direction in which the rear of your vehicle is moving.
• It is dangerous if there is snow left on your car. If it hardens, it may scatter and cause damage.
• If travel is not essential, stay home and enjoy the snow with a warm fire and a good book. Or binge-watch your favorite shows.

N.W.S. brian head predictions Continues below:

Snow began to fall after 11 a.m. on Wednesday, and the maximum temperature was around 9 p.m., with wind chills as low as -3 degrees Celsius. Breezy, with southerly winds between 20 and 24 mph, with gusts up to 36 mph. Chance of rain is 80%. An inch or two of fresh snow is possible. Heavy snow is possible Wednesday night. Low temperatures will be around 11. Wind chill is around -1. South-southwest wind – 11 mph, changing to north-northwest after midnight. The chance of rain is 100%. 3 to 7 inches of fresh snow is possible. Snow on Thursday, with highs around 4 p.m. North-northwest wind 10 to 18 mph. Chance of rain is 80%. New snow accumulations of 1 to 2 inches are possible.

national weather bureau St. George weather forecast Continues below:

Tuesday night will be cloudy and then gradually clear, with a low around 34 degrees. Winds will also increase to the east between 5 and 9 mph in the evening. Wednesday: Rain expected after 11am. Clouds will increase and highs will be around 47 degrees. East wind 9 to 13 mph, becoming southwest in the afternoon. There is a 70% chance of rain, with rain by 11pm, followed by heavy rain and snow. The lowest temperature is around 32:00. In the evening, the wind was calm and from the northwest. Chance of rain is 90%. Little to no snow is expected. Thursday with a chance of rain and snow before 11 a.m. and then a chance of rain. Partly sunny skies with a high of around 47 degrees.

N.W.S. Cedar City weather forecast Continues below:

Tuesday night will be mostly cloudy with a low around 28. East winds 5 to 8 mph. Snow is expected to fall after 11 a.m. Wednesday, with increasing clouds and highs near 40 degrees. East winds 6 to 16 mph, turning southwest in the afternoon. Chance of rain is 70%. Less than half an inch of fresh snow is possible. It snowed Wednesday night with a low of 24 degrees. South winds will be 5 to 7 mph becoming weaker and more variable in the evening. The chance of rain is 100%. New snow accumulations of 1 to 3 inches are possible. There is a 50% chance of snow on Thursday. Mostly cloudy, with a high around 32 degrees. North wind 6 to 13 mph. Less than half an inch of fresh snow is possible.

click here Graphically represents the snowfall forecast.

click here Winter road conditions from the Utah Department of Transportation.