The RCMP in Holyrood is advising motorists that driving conditions in the area are very poor due to the contining snow storm.
The recent weather has made the roads very slippery and visibility is reduced, officers say.
There have been several motor vehicle accidents in the area.
Police are asking motorists to take extreme caution and to avoid unnecessary driving.
Provincial government departments in the St. John’s/Mount Pearl area will reopen at 1 p.m. today.
The House of Assembly will also sit this afternoon and an Estimates Committee will proceed as scheduled tonight.
But a winter storm warning is still in effect for St. John's and the Avalon region and southern areas of the island.
Environment Canada's weather forecast at 11 a.m. calls for snow at times heavy, mixed with ice pellets with an accumulation today of about 10 to 20 cm. That's on top of 18.2 cm to midnight Monday.
Another 5 cm of snow and ice pellets are in the forecast tonight.
Environment Canada says snow, mixed with ice pellets, are expected to end tonight after midnight, with mainly cloudy conditions and 60 percent chance of flurries. There's also a risk of freezing drizzle overnight with temperatures staying around -1 Celsius. Some blowing snow is also in the forecast as winds from the northeast gust to 60 km/h.
RNC posts joke on Twitter about hot weather, sunshine
The Royal Newfoundland Constabulary’s first Tweet this morning on its new Twitter account says the forecast for today is 33 C and sunny but don’t let that fool you.
It’s followed by #aprilfools. The real message from the police force is “Be safe on your way to work this morning; roads are quite slippery.”
It's the first day of April and almost two weeks into spring, but St. John’s has already received 18.2 cm of snow up to midnight last night and Environment Canada is forecasting 10 to 20 cm more in snow and ice pellets today before the latest storm to hit the province subsides.
A winter storm warning is still in effect for the Avalon Peninsula and southern areas of Newfoundland.
Environment Canada says snow, ice pellets and freezing rain is occurring over the southern half of the island and will continue today.
Over the southern Avalon, the Southern Burin Peninsula and coastal sections of the south coast, the precipitation has been mainly a mix of ice pellets and freezing rain.
Over the northern Avalon including St John's, Clarenville and vicinity, northern portions of the Burin Peninsula and inland portions of the south coast, it has been mostly snow.
Also in those areas, Environment Canada says east to northeasterly winds between 50 and 80 km/h will result in blowing snow.
The Royal Newfoundland Constabulary responded to several vehicle collisions overnight on the Northeast Avalon, but no serious injuries were reported.
The police force is cautioning drivers and pedestrians of hazardous road conditions as a result of the ongoing winter storm.
Environment Canada storm warnings continued
Environment Canada says a low pressure system south of Nova Scotia will move very slowly eastward and pass south of Newfoundland over the next couple of days. This system will bring an extended period of winter weather to Southern Newfoundland.
Snow, ice pellets and freezing rain is occurring over the southern half of the island and will continue today.
Over the southern Avalon, the southern Burin Peninsula and coastal sections of the south coast, the precipitation is falling mainly as a mix of ice pellets and freezing rain.
Over the northern Avalon including St John's, Clarenville and vicinity and inland portions of the south coast it is mostly snow.
For those areas further snowfall amounts of 10 to 25 cm are expected. Also in those areas east to northeasterly winds between 50 and 80 km/h will result in blowing snow.
Schools closed in St. John's-metro
The bad weather has forced the closure of all schools in the St. John's-metro region today and there are many other closures and delayed openings in other areas of the province.
Click here for updated school information.
Marine Atlantic service affected
Marine Atlantic cancelled its crossings between Port aux Basques and North Sydney, N.S. Monday night and this morning.
Customers are being rebooked for the 11:45 p.m. service tonight.
Here's the latest advisory from Marine Atlantic:
Travel Advisory Weather Impact Advisory - 31/3/2014 and 01/4/2014
As a result of high wind and sea conditions, the 2345 hours sailing, 31/3/2014 and 1145 hours sailing, 01/4/2014 from Port aux Basques and from North Sydney have been cancelled.
Customers reserved for these sailings will now depart at 2345 hours 01/4/2014 weather permitting.
Also, there may be a weather impact out of North Sydney and Port aux Basques for the sailing at 2345 sailings 01/4/2014.
UPDATE 2045 31/3/2014- Please be advised that due to the volume of commercial traffic, the lot at the North Sydney terminal is now closed to commercial traffic. Please proceed to the ticket booth and a sequence number will be issued.
Customers are urged to keep checking the travel advisory section of our website (www.marine-atlantic.ca) and contact our toll-free number (1-800-341-7981) for up to date information.
The Reid Community Centre, Glacier, Mount Pearl Swimming Pool, and Kenmount Park Community Centre will remain closed for the remainder of today (Tuesday, April 1).
Mount Pearl Garbage/recycling collection will proceed as regularly scheduled today.
The City of St. John's garbage and recycling collection are cancelled today, will take place tomorrow, Wednesday, April 2.
St. John's MetroBus is operating but expect delays due to weather conditions.
GoBus passengers should call to confirm rides due to limited operations. Phone: (709) 368-8887 TTY: (709) 368-1620.
Eastern Health advises the public that all community based clinics and offices within the Eastern Health region will be closed today, Tuesday, April 1, 2014, due to severe weather conditions.
All on-site appointments and home visits scheduled for today, April 1, 2014, are cancelled and will be rescheduled for a later date.
Acute care facilities will remain open and emergency services will continue to be available at all sites.
Please be advised that the Hermitage Community Health Centre has reopened. Central Health apologizes for any inconvenience the delayed opening may have caused.
Due to winter storm conditions, City Hall and all Recreation Facilities will be closed for the remainder of today, Tuesday, April 1, 2014. If you wish to speak with an operator, please contact Access St. John's at 311 or 754-CITY (2489).
St. John's Metrobus to stop buses at 6 p.m.
Service terminating at 6:00 PM
Metrobus service will be terminating at 6:00 PM for the day.
Routes 3, 10 not servicing Water Street between Cochrane Street and Prescott Street.
Route 10 not servicing Longs Hill and is not servicing Parade Street when heading to Avalon Mall. It is using Bonaventure to Merrymeeting Road.
Route 3 is using Shaw Street and not Craigmiller Avenue when heading to The Village Shopping Centre.
Route 16 is not servicing Polina Road.
Expect delays this afternoon due to weather and road conditions.