A winter storm warning is in effect from 11 p.m. today to 3 p.m. Tuesday, with heavy snow expected.

The quick burst of snow could bring 9 to 12 inches, according to the National Weather Service.

Travel could be very difficult to impossible. The hazardous conditions will impact the morning commute.

Particularly heavy snowfall will be possible around the time of the morning commute, with snowfall rates of around 1 to 2 inches per hour possible.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emerge

The forecast as of 4 a.m.:

Today: Mostly cloudy, with a high near 47. Calm wind becoming west around 5 mph in the afternoon.

Tonight: Rain and snow likely before 2 a.m., then snow. Low around 31. Northeast wind 5 to 10 mph increasing to 10 to 15 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Tuesday: Snow before 1 p.m. High near 35. Northeast wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Tuesday Night: Mostly clear, with a low around 22. West wind around 10 mph.

Wednesday: Mostly sunny, with a high near 32. Breezy, with a northwest wind 15 to 20 mph.

Wednesday Night: Mostly clear, with a low around 19.

Thursday: A chance of rain and snow after 1 p.m. Partly sunny, with a high near 37. Chance of precipitation is 40%.

Thursday Night: A chance of rain and snow before 1 a.m. Mostly cloudy, with a low around 27. Breezy. Chance of precipitation is 30%.

Friday: Mostly sunny, with a high near 36. Breezy.

Friday Night: Mostly cloudy, with a low around 21.

Saturday: A chance of snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.

Saturday Night: Partly cloudy, with a low around 20.

Sunday: Mostly sunny, with a high near 36.