WEATHER ALERT: Hour-By-Hour Blizzard Forecast

Photo credit: National Weather Service.

The fourth major snowstorm and second blizzard in three weeks is barreling toward Massachusetts and is expected to dump a foot of snow across most of Eastern Massachusetts.

The National Weather Service has called a Blizzard Warning from 7 p.m. Saturday to 7 a.m. Monday for all of Eastern Massachusetts. The NWS also issued a Wind Chill Warning from 4 p.m. Sunday to 11 a.m. Monday.

The NWS warned that people should get off the roads by late Saturday afternoon.

Most of Eastern Massachusetts is predicted to get 10 to 14 inches of snow. Snow is expected to start on Saturday afternoon and continue into Saturday night. Snow will stop for a time on Saturday night before returning and intensifying late Saturday night and becoming a blizzard early Sunday morning, according to the NWS.

Winds of 25 to 35 mph with gusts of up to 60 mph are expected. Wind chills are expected to fall to 25 below zero.

“Travel will become nearly impossible and potentially life-threatening due to white-out conditions and bitterly cold wind chills. Conditions will remain dangerous for travel well into Sunday due to blowing and drifting show. Reduced visibility and dangerously cold wind chills. Power outages can be expected at some locations due to very strong winds,” warned the NWS.

This storm may not produce the amount of snow that we’ve seen from other storms in the past three weeks, but this latest storm will likely exasperate snow-related problems.

Only halfway through February, this month is already the snowiest February on record in Boston. A foot of snow would break the snowiest month in Boston on record.

Here is the hour-by-hour snow forecast from The Weather Channel:

• 2 p.m. to 4 p.m. Saturday -- Snow showers
• 4 p.m. 10 p.m. Saturday -- Snow
• 10 p.m. Saturday -- Light snow
• 11 p.m. Saturday to 2 a.m. Sunday -- Snow showers
• 2 a.m. Sunday to 1 p.m. Sunday -- Blizzard
• 1 p.m. Sunday -- Thunder snow/wind
• 2 p.m. Sunday to 4 p.m. Sunday -- Snow showers/wind

Snow should end by late afternoon Sunday, but the dangerous wind chills and blowing and drifting snow are expected until Monday morning.