Hurricane Gonzalo is expected to track southeast of Newfoundland's Avalon Peninsula early Sunday morning, according to the latest forecast models.
CBC meteorologist Ryan Snoddon said the weather system is expected to bring a short but heavy burst of rain and strong wind gusts to hit the region.
"There is definitely more certainty today," Snoddon said. "As it gets closer to approaching our region, we are seeing a better consensus with the forecast models in terms of where this is going to track."
"One of the things we are watching for is where the centre of this storm is, because that is where we are going to see the strongest winds, and where we are going to be seeing the heaviest rain," Snoddon said.
"With a centre track just southeast of the Avalon overnight tonight, that will keep the strongest wind gusts offshore, and that's a good thing because this storm will be packing wind gusts anywhere from 120 to 150 km/h. So it is going to be a concern obviously for [oil rig workers] offshore, and they are keeping a close eye on this."
Hurricane Gonzalo as seen in a satellite image over the Atlantic Ocean on Wednesday. Meteorologists say the biggest impact will hit the Grand Banks area off the coast of Newfoundland. (NASA/NOAA/Reuters)
The Hibernia Management and Development Company is in the process of developing new safety measures after four workers were on the GBS roof slab of the installation when high waves hit. Two men were knocked off their feet and nearly swept into the Atlantic Ocean.
Snoddon said wind gusts for parts of the Avalon could top 90 km/h on land as the system passes by Newfoundland's southeastern area.
"This system will be moving very quickly, so its impact will be a quick shot," he said, adding that the window to watch will be between 3 and 9 a.m. AT Sunday.
"Overall amounts [of rain] when you hear them probably are not that impressive, 30 to 50 millimetres — we see that quite often in our neck of the woods. The problem is that it is going to be come down in basically a three- to six-hour period," Snoddon added.
"Higher than normal water levels are also expected Sunday morning along the southern part of the Avalon with high tide being around 6 a.m., and Environment Canada being most concerned about that area between St. Brides and Trepassey."
Snoddon said forecasters will be watching the storm through Saturday to make sure there are no major changes in its path, and get a better handle on where Gonzalo's centre will track as it continues its approach to the island.
Snoddon said temperatures on Sunday afternoon should crest the high teens in St. John's, with light winds and sunny breaks in the forecast as Gonzalo moves out to sea.
Forecasters with the Canadian Hurricane Centre said on Friday that "very high winds" were expected on the Grand Banks, with wave heights predicted between 12 and 15 metres.
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