Laurentian Fan

Forecast

Marine Forecast

Issued 08:00 PM AST 12 December 2017

Tonight and Wednesday.

Gale warning in effect.

Wind easterly 15 to 20 knots veering to southeast 25 after midnight then increasing to southeast 35 Wednesday morning. Wind veering to southwest 40 Wednesday evening.

A few showers changing to rain near noon Wednesday with risk of thunderstorms. Fog patches forming late overnight and dissipating Wednesday evening.

Waves

Issued 05:00 PM AST 12 December 2017
Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 late overnight and to 4 Wednesday afternoon.

Extended Forecast

Issued 03:30 PM AST 12 December 2017
Thursday Wind southwest 35 knots.
Friday Wind westerly 20 to 25 knots diminishing to light late in the day.
Saturday Wind northeast 20 to 25 knots increasing to northwest 45 late in the day.

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Weather Conditions

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Map of Atlantic - Newfoundland marine weather areas Southwestern Grand Banks - 44138 Banquereau - 44139 Tail of the Bank - 44140 Nickerson Bank - 44251 Northeast Burgeo Bank - 44255 Blanc-Sablon Airport Cap Whittle Chevery Natashquan Airport Heath Point Miscou Island Grand Étang Ingonish Beach North Mountain St.Paul Island J.A. Douglas McCurdy Sydney Airport Charlottetown Airport East Point North Cape Argentia Bonavista Burgeo Cape Race Corner Brook Daniel's Harbour Englee Ferolle Point La Scie Port aux Basques Rocky Harbour Sagona Island St. Anthony Airport St. John's Int'l Airport St. Lawrence Stephenville Airport Twillingate Winterland Wreckhouse Cartwright Airport Mary's Harbour Grates Cove Pool's Island Marticot Island Long Pond Eskasoni (First Nations) Îles de la Madeleine Airport
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 12 December 2017 Today Tonight and Wednesday
 

Iceberg Bulletin

Issued 11:00 AM EST 12 December 2017

Iceberg Limit

Iceberg limit at 0000 UTC 13 Dec estimated from the Labrador coast
near 5225N 5540W to 5000N 5230W to 5430N 4700W to 5500N 4800W to
6000N 5900W to 6100N 5400W to 5700N 5000W then eastwards.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Laurentian Fan

Issued 8:00 PM AST 12 December 2017

'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.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM AST 12 December 2017 Tonight and Wednesday At 8:00 p.m. AST tonight departing ridge located northeast of
Newfoundland.

At 8:00 p.m. AST tonight deepening low 992 mb located near Cape Cod.
By 8:00 p.m. AST Wednesday low 967 mb located over the St. Lawrence
River.

Marine Weather Statement

Issued 7:39 PM AST 12 December 2017 A low pressure system currently near Cape Cod will continue to deepen
tonight and Wednesday as it tracks northeastward to lie over the St.
Lawrence River Wednesday evening. Gale force southeasterlies ahead of
the low and will shift to gale force southwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for all
waters.

Marine interests are also advised that a freezing spray warning is in
effect for Anticosti.

In addition, marine interests are advised that higher than normal
waters levels can be expected at high tide along the Atlantic Coast
of Nova Scotia tonight and again at high tide on Wednesday. Higher
than normal water levels are also expected at high tide over the
Northern Gulf of St. Lawrence on Wednesday.

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