Giovana Gelhoren
Updated on: October 8, 2024 10:01 am GMT
Heavy Rainfall Warnings in Effect for Atlantic Canada
Atlantic Canada is bracing for a significant weather event as rainfall warnings have been issued for numerous regions, particularly across southern Nova Scotia, including Halifax. Environment Canada forecasts heavy moisture and strong winds beginning Friday night, presenting an increased risk of localized flooding and hazardous travel conditions. Heavy precipitation is expected to continue into the weekend, with forecasts estimating rainfall totals ranging from 20 to 75 millimeters across various regions.
Weather Predictions and Alerts
According to CBC meteorologist Tina Simpkin, areas in Prince Edward Island are expected to experience between 20 and 30 millimeters of rain on Saturday. “There will be pockets of heavier amounts, and the winds are really going to be blowing things around,” Simpkin stated, highlighting the possibility of thunderstorms that may further enhance localized rainfall. Additionally, wind speeds are anticipated to reach about 30 km/h throughout the day, with gusts exceeding 50 km/h and as high as 70 km/h along coastal areas.
On Friday, residents can expect a sunny start that will turn cloudy by midday, with the most significant rain and wind beginning shortly before dawn on Saturday. Simpkin also noted that while rain will persist into Sunday, it is likely to be less intense compared to Saturday’s forecast.
Impact of Tropical Low-Pressure System
The source of this anticipated weather system is a low-pressure area off the coast of North Carolina, which is expected to move toward the Maritimes, bringing with it a significant influx of tropical moisture. The system will deliver two distinct waves of moisture: the first arriving Friday night and continuing into Saturday, and the second moving from Ontario on Sunday, affecting the southern Maritimes late in the day and Newfoundland by Monday.
As rainfall rates peak, areas along the coast could see precipitation levels reach between 5 to 10 millimeters an hour during the heaviest downpours. Some locations may even experience short bursts of rain accumulating at rates up to 25 mm per hour over a 12-hour period, raising serious concerns about flash flooding, especially in vulnerable regions.
Warnings for Coastal Regions
In light of these weather conditions, Environment and Climate Change Canada (ECCC) has issued specific warnings for Halifax and surrounding areas, cautioning that heavy downpours can lead to hazardous road conditions and flash floods. Road users are advised to remain vigilant for possible washouts near rivers, creeks, and culverts, where significant water pooling may occur.
Wind advisories accompany the rainfall warnings, particularly for coastal Nova Scotia, where gusts are expected to exceed 70 km/h. This may lead to the risk of downed trees and power lines, as well as potential damage from broken branches. Similar storm conditions were last experienced in early April, making this system one of the more intense weather events seen in some time.
A Closer Look at Rainfall Estimates
Current estimates indicate widespread rainfall totals in the Maritimes could range from 30 to 50 millimeters, while southern Newfoundland may see totals of 20 to 30 millimeters. The strongest impacts are anticipated along Nova Scotia’s Atlantic coastline, where rainfall totals are projected to reach between 50 to 75 millimeters, especially around Halifax and regions southwest of the city.
It is essential to note that there is still some uncertainty regarding the exact path the low-pressure system will take, which will influence how far inland the moisture reaches southern New Brunswick. While meteorologists express greater confidence in predicting heavy rainfall in southeastern Nova Scotia, residents across the region are advised to prepare for potential adverse weather conditions.
Monitoring the Situation
As the region gears up for this weather event, it is urged that residents stay updated on weather forecasts and warnings. The prolonged rainfall and strong winds might induce flood risks, raising the necessity for emergency preparedness and caution, especially for those residing in low-lying or flood-prone areas.
Additionally, the rain is expected to clear from the Maritimes by Monday, but officials stress the importance of vigilance throughout the weekend. As this weather system unfolds, local authorities will provide ongoing updates to ensure public safety and awareness regarding changing conditions.
People living in Atlantic Canada should stay alert and take action because the weather this weekend is expected to be rainy and windy. There will be heavy rain and strong winds that could lead to flooding in the Maritimes, so it’s important to be careful.
