An approaching weather system is expected to bring substantial rainfall and strong winds to Nova Scotia on Halloween this Friday. However, there is some positive news as the rain is forecasted to diminish to a few showers in many areas just in time for trick-or-treating. The system will draw in tropical moisture from the south, including remnants from Hurricane Melissa, resulting in heavy downpours and a potential for thunderstorms on Friday.
Rainfall amounts are projected to range from 30 to 50 mm across most of the province, with localized areas possibly experiencing heavier precipitation, particularly along the Atlantic coast. Clearing storm drains and gutters of leaves and debris can help mitigate the risk of flooding from the anticipated heavy rainfall.
Strong winds are also expected on Friday, with gusts ranging from 50 to 70 km/h across the region and the potential for gusts reaching 80 km/h along coastal areas. In Cape Breton, Les Suetes winds could exceed 120 km/h in Inverness County.
Residents are advised to secure Halloween decorations, especially inflatables, to prevent damage from the powerful winds. Forecast models are aligning on the timing of this weather system, crucial for those planning Halloween activities.
Rain is predicted to commence early to mid-Friday morning for most mainland areas, with a slightly later onset for Cape Breton. The heaviest rain and strongest winds are expected to taper off from west to east through Friday afternoon and evening.
Western parts of Nova Scotia, including the Tri-County region, Annapolis Valley, and South Shore, are likely to see rain cease before trick-or-treaters start, with a chance of lingering showers or drizzle. Central areas such as Halifax and Truro are expected to see the heaviest rain diminish by late afternoon or early evening, with a possibility of isolated showers before clearing by 6 p.m.
Following the rain, winds will shift to the southwest and remain brisk with gusts of 50 to 60 km/h throughout the evening. Eastern mainland areas, including Northumberland Shore and Eastern Shore, may experience wet and windy conditions into the early evening, though some models suggest clearing by 7 p.m.
For Cape Breton, clearing before trick-or-treating time seems less likely, and both rain and wind are anticipated to persist into the evening. Some communities in Cape Breton are rescheduling Halloween activities due to the inclement weather. Stay updated for any changes in the forecast on Friday.