Hour-By-Hour Forecast Of Snow And Ice Storm: CT Weather

Superintendents of schools will have a tough job around 5 a.m. Tuesday. We all know snow is in the forecast for Connecticut as it is expected to begin after most students would arrive at school but will superintendents decide to cancel school, call for an early dismissal or none of the above.

This is not a blockbuster snowstorm but the real concern is the storm's timing. The worst of the snow and ice is expected Tuesday afternoon and roads are expected to deteriorate quickly, especially for the evening commute home from work.

A Winter Weather Advisory is in effect for the entire state except for Litchfield County, which has been upgraded to a Winter Storm Warning.

Here are the latest accumulation estimates from the National Weather Service:

Fairfield, New Haven, Middlesex, and New London counties: Total snow accumulations of 2 to 5 inches and ice accumulations of a light glaze to up to one tenth of an inch expected.

Hartford, Tolland and Windham counties: Snow accumulations of 2 to 4 inches and ice accumulations of up to one tenth of an inch expected.

Litchfield County: Total snow and sleet accumulations of 4 to 6 inches across Litchfield County. Ice accumulations of a tenth to quarter of an inch are expected. (To sign up for free, local breaking news alerts from more than 100 Connecticut communities, click here.)

Here is an hour-by-hour look at snow and ice accumulations for Connecticut:

Connecticut coast or the I-95 corridor:

10 a.m.: 84 percent chance of precipitation; 26 degrees

1 p.m.: 100 percent chance of precipitation; 27 degrees

4 p.m.: 100 percent chance of precipitation; 29 degrees

7 p.m.: 100 percent chance of precipitation; 31 degrees

10 p.m.: 90 percent chance of precipitation; 33 degrees

1 a.m.: 83 percent chance of precipitation; 36 degrees

4 a.m.: 56 percent chance of precipitation; 37 degrees

7 a.m.: 22 percent percent chance of precipitation; 36 degrees

Snow is expected to begin after 9 a.m. and continue until 5 p.m. A total of 3.8 inches of snow and sleet are expected. Sleet and freezing rain mix in from 4 p.m. until 10 p.m. From 10 p.m. to 4 a.m. light rain is expected.

Interior sections of Southern Connecticut:

10 a.m.: 78 percent chance of precipitation; 24 degrees

1 p.m.: 100 percent chance of precipitation; 25 degrees

4 p.m.: 100 percent chance of precipitation; 27 degrees

7 p.m.: 100 percent chance of precipitation; 29 degrees

10 p.m.: 90 percent chance of precipitation; 31 degrees

1 a.m.: 80 percent chance of precipitation; 35 degrees

4 a.m.: 56 percent chance of precipitation; 35 degrees

7 a.m.: 26 percent percent chance of precipitation; 36 degrees

Snow is expected to begin after 9 a.m. and continue until 7 p.m. A total of 4.3 inches of snow and sleet are expected. Sleet and freezing rain mix in from 4 p.m. until midnight. From midnight until 4 a.m. light rain is expected.

Northern Connecticut:

10 a.m.: 55 percent chance of precipitation; 23 degrees

1 p.m.: 85 percent chance of precipitation; 23 degrees

4 p.m.: 100 percent chance of precipitation; 26 degrees

7 p.m.: 100 percent chance of precipitation; 29 degrees

10 p.m.: 100 percent chance of precipitation; 31 degrees

1 a.m.: 84 percent chance of precipitation; 33 degrees

4 a.m.: 64 percent chance of precipitation; 33 degrees

7 a.m.: 18 percent percent chance of precipitation; 34 degrees

Snow is expected to begin after 10 a.m. and continue until 5 p.m. A total of 3.6 inches of snow and sleet are expected. Sleet and freezing rain mix in from 2 p.m. until midnight. From midnight until 5 a.m. light rain is expected.

Connecticut's weather experts predictions on snow accumulation: