WEATHER UPDATE: Norwalk's Hour-by-Hour Monday Forecast

The National Weather Service has issued a “Winter Weather Advisory” in effect until 6 a.m., Tuesday for snow and ice which is expected to fall for most of the day.

The weather service is predicting 1 to 3 inches of snow and a tenth of an inch of ice accumulating by late tonight in parts of southern Connecticut and the lower Hudson Valley.

But only about an inch of snow and about a tenth of an inch of ice is expected for Norwalk all day, according to the weather service’s 9:52 a.m. update of its Norwalk-specific forecast.

The weather service states that travel will be “hazardous” due to snow and ice accumulation along with reduced visibilities.

Here’s the hour-by-hour New Canaan forecast, according to Weather.com: (each hourly time refers the upcoming 60 minutes)

• 11 a.m. — cloudy
• Noon to 3 p.m. — light snow
• 4 to 6 p.m. — snow showers
• 7 to 10 p.m. — few snow showers
• 11 p.m., Monday to 8 a.m., Tuesday — cloudy