Laurentian Fan


Marine Forecast

Issued 03:00 AM ADT 21 March 2018

Today Tonight and Thursday.

Gale warning in effect.

Wind west 15 knots diminishing to light early this morning then increasing to east 20 near noon. Wind increasing to northeast 40 this afternoon except southwest 35 over southern sections this evening. Wind diminishing to northeast 25 overnight then becoming south 25 Thursday afternoon.

Rain beginning this morning. Risk of thunderstorms this evening and Thursday afternoon. Fog patches forming Thursday afternoon.


Issued 05:00 AM ADT 21 March 2018
Today Tonight and Thursday. Seas 2 to 3 metres building to 4 to 6 this evening then subsiding to 3 Thursday afternoon.

Extended Forecast

Issued 03:00 AM ADT 21 March 2018
Friday Wind southwest 35 knots diminishing to west 20 in the afternoon.
Saturday Wind variable 15 knots increasing to northeast 25 late in the day.
Sunday Wind northeast 35 knots.

Ice Forecast

Issued 10:00 AM EDT 20 March 2018 Today Tonight and Wednesday Ice free. 

[ Canadian Ice Service ]

Stay connected


Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Southwestern Grand Banks - 44138 Banquereau - 44139 Laurentian Fan - 44141 LaHave Bank - 44150 Northeast Burgeo Bank - 44255 Halifax Harbour - 44258 Mont-Louis - 45138 Baie-Comeau Airport Havre-Saint-Pierre Airport Longue-Pointe-de-Mingan Sept-Îles Airport Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport Heath Point La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Bas Caraquet Bathurst Airport Bouctouche AAFC Charlo Eskasoni (First Nations) Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Baccaro Point Beaver Island Brier Island Caribou Point Debert Grand Étang CFB Greenwood Hart Island Ingonish Beach Kentville AAFC Lunenburg McNabs Island Nappan AAFC North Mountain Parrsboro Sable Island St.Paul Island Shearwater Airport J.A. Douglas McCurdy Sydney Airport Tracadie Western Head Yarmouth Airport Charlottetown Airport East Point North Cape Summerside Burgeo Port aux Basques Sagona Island St. Lawrence Stephenville Airport Winterland Wreckhouse Île aux Perroquets Île Rouge Pointe-des-Monts Pointe-Noire Île Bicquette Cap-Chat Îles de la Madeleine Airport
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 20 March 2018 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Nova Scotia near 4520N 6100W to 4510N 6005W
to 4530N 5810W to 4650N 5725W to Newfoundland near 4730N 5610W. Sea
ice north of the ice edge.

Ice Coverage

Ice free.


Iceberg Bulletin

Issued 11:00 AM EDT 20 March 2018

Iceberg Limit

Iceberg limit at 0000 UTC 20 Mar estimated from Newfoundland near
4653N 5409W to 4530N 5330W to 4500N 4745W to 4515N 4530W to 4800N
4600W to 5300N 4930W to 5600N 5200W then eastwards.

Western iceberg limit at 0000 UTC 20 Mar estimated from Quebec near
5109N 5840W to Newfoundland near 5029N 5724W.

Iceberg Count

No confirmed icebergs.

Warnings (In effect)

Gale warning in effect

Laurentian Fan

Issued 03:00 AM ADT 21 March 2018

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 8:00 PM ADT 20 March 2018 Tonight and Wednesday At 8:00 p.m. ADT tonight ridge located west of the Marine District.
By 3:00 a.m. ADT Wednesday ridge located on a line
northwest-southeast over the Marine District.

At 3:00 a.m. ADT Wednesday warm front from low located southwest
of the Marine District.
By 8:00 p.m. ADT Wednesday warm front from low located on a line
east-west over the southern Marine District.

Marine Weather Statement

Issued 2:59 AM ADT 21 March 2018 A warm front associated with an approaching low pressure system will
move into the southern marine district today before tracking
northward on Thursday. Strong to gale force northeasterly winds north
of the trough will spread to most of the district by Thursday morning
and switch to strong to gale force southwesterly winds in its wake.

Current information including satellite-based ocean wind measurements
indicate that this warm front will track along the southern edge of
the slope waters today prior to moving northward. There remains some
uncertainty with the extact strength and track of the associated low
pressure system which is expected to enter the western marine
district Thursday afternoon. Should the low arrive more intense than
is currently forecast, storm force northeasterlies and
southwesterlies near this feature may develop over some western

Marine interests are also advised that gale warnings are in effect
for all marine waters except for Chaleur-Miscou - western half, and
Anticosti - northwestern half.

Atlantic - Maritimes Area

Another Region

What we are doing

Date modified: