Alerts in Effect
Tropical Cyclone Information StatementIssued at 03:19 Thursday 17 August 2017
For Hurricane Gert.
The next information statement will be issued by 9:30 a.m. NDT.
Hurricane Gert will race across the Southern Grand Banks today with no direct impacts to Canadian land areas. Hurricane force winds are not expected over the Grand Banks.
1. Summary of basic information at 03:30 a.m. NDT.
Location: Near 40.6 North 55.6 West.
About 703 kilometres south-southwest of Cape Race.
Maximum sustained winds: 155 kilometres per hour.
Present movement: East-northeast at 70 kilometres per hour.
Minimum central pressure: 970 millibars.
2. Public weather impacts and warnings summary.
A special weather statement highlights the possibility of significant rainfall amounts, and possible abnormal variations in the tides.
Any significant winds from Gert are expected to remain well offshore.
Some moisture from Gert will feed into an approaching non-tropical weather system near eastern Newfoundland. This system will reach Newfoundland on Thursday and amounts of 25 to 50 mm forecast over portions of eastern and northern Newfoundland, with a possibility of reaching 100 mm over the Northern Peninsula.
Long period swells from Gert will reach 2 to 4 metres along south-facing coastlines of Newfoundland this morning, with the highest waves likely along the southern Avalon peninsula. These swells could also lead to dangerous rip currents. Significant wave heights of 3 to 6 metres are expected over the Grand Banks on Thursday afternoon. The highest waves from Gert will remain south of Canadian waters.
In addition, Hurricane Gert may cause a series of rapid changes in water levels in harbours and inlets from the Avalon Peninsula north to Trinity Bay for a couple of hours. The most likely time ranges from late this afternoon into this evening. High tide will be occurring late this afternoon for most areas, so there is a risk for minor flooding near and after high tide.
3. Marine weather impacts and warnings summary.
The latest track for Gert has it passing over the extreme southern Grand Banks today and transitioning to a very intense midlatitude storm as it passes east of our forecast waters. Gale to storm force winds are expected over southernmost portions of the Grand Banks, with hurricane force winds remaining just south of the Grand Banks. Gale and Storm warnings are in effect for the southern Grand Banks.
Please continue to monitor alerts issued by the Canadian Hurricane Centre and forecasts issued by Environment Canada.
Special Weather StatementIssued at 05:46 Thursday 17 August 2017
Total rainfall amounts of up to 40 mm are expected today into Friday morning. Heavy downpours may contribute to rainfall totals approaching 50 mm over some locations, giving localized flooding.
Environment Canada meteorologists will continue to monitor the situation and provide updates as new information becomes available.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to firstname.lastname@example.org or tweet reports using #NLwx.