Tropical Storm Watches in effect for Newfoundland as Gonzalo approaches island
Saturday, October 18, 2014, 8:44 PM - After making a direct hit on Bermuda Friday night, Hurricane Gonzalo is accelerating to the northeast and is expected to track near or southeast of Cape Race, Newfoundland early Sunday morning.
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Tropical storm watches are in effect for the Avalon Peninsula, with the exception of the Avalon Peninsula North. The Newfoundland and Labrador office has issued rainfall warnings for the Avalon Peninsula.
"We're confident Gonzalo will be more of a glancing blow than a direct hit on the Avalon," says Weather Network Chief Meteorologist Chris Scott. "Gonzalo will be sideswiping the peninsula keeping the worst winds offshore. This will be a dangerous storm for marine areas including the Grand Banks where waves could be as high as a 6-storey building."
"While Gonzalo is unlikely to be an memorable storm for St. John's, it still deserves respect as it will bring a quick burst of heavy rain overnight and some gusty winds."
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Here are four important things you should know about Hurricane Gonzalo.
1. Hurricane-force winds
Winds associated with Gonzalo will begin to affect the Avalon Peninsula near midnight. Gusts could reach as high as 90 km/h for St. John's and the Avalon Peninsula south.
2. Heavy rainfall
Much of southeastern Newfoundland will receive rainfall as result of Gonzalo's passage. The bulk of the rainfall is currently expected to be over the Avalon. Rainfall amounts of 30 mm with locally higher amounts of 50 mm or more are expected.
"In addition, high rainfall rates of 25 mm per hour are possible," says the CHC.
Flash flooding and water pooling on roads is possible overnight.
3. Storm surge and high tide
Wave heights will increase quickly along the southern coast overnight tonight. The largest waves will be along the southern coast of the Avalon where heights will be in the 5 to 8 metre range and could possibly exceed 10 metres.
Elsewhere along the south coast, waves of 4 to 6 metres are likely.
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"Of concern is that high tide along the Southern Avalon Peninsula is near dawn Sunday which could be the approximate time of Gonzalo's passage," says the CHC in a weather summery. "High coastal water levels and high waves are likely along Southern Avalon Peninsula early Sunday morning. There is a possibility of local flooding mainly due to wave activity at this time."
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Also, the Atlantic coast of Nova Scotia will experience large ocean swells of 2 to 3 metres beginning tonight and building to 3 to 5 metres by Sunday morning.
A special weather statement has been issued regarding the waves and high water levels.
Gorgeous, gorgeous place here in Newfoundland. At Cape Spear right now, moving south soon. pic.twitter.com/kEQh1Ftay5— Mark Robinson (@StormhunterTWN) October 18, 2014
4. Marine weather impacts
This storm will have heavy impacts over parts of the southern marine areas.
Hurricane force winds and significant wave heights in excess of 12 metres are likely over some offshore marine areas, especially those to the right of the storm's track overnight tonight and Sunday.
"There are also indications that waves could locally exceed 18 metres from the Laurentian Fan into the Southern Grand Banks, with lesser wave heights further north," says the centre.
The Weather Network will be live Saturday with up-to-the-minute news and analysis from Newfoundland, tune in all-day. For broadcast details, click here.
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