Rain reports and risk of thunderstorms
Random rain totals were reported across the Maritimes on Wednesday, the result of scattered coverage of showers and thunderstorms. Some relatively small geographic areas, such as around Fredericton, reported widely varying amounts due to the irregularity of showers.
Amounts of rain were reported in the Maritimes on Wednesday due to scattered showers and thunderstorms.
With a ridge of high pressure coming from the west on Thursday, as many showers or thunderstorms are not expected. A sudden shower or thunderstorm is possible for Bathurst and northeastern New Brunswick, parts of southern New Brunswick and the Nova Scotia region from the northern Annapolis Valley towards Truro and into Pictou County.
On Friday, scattered showers as well as isolated thunderstorms will develop in New Brunswick throughout the day. The risk of thunderstorms will be highest between noon and 7 p.m. The showers are the result of an approaching cold front coming from the St. Lawrence River valley, in Quebec.
Scattered showers with a risk of thunderstorms develop in New Brunswick until Friday.
Rain and showers at the weekend
As the cold front approaches the Maritimes Friday evening, showers are expected to reach Nova Scotia and Prince Edward Island. The front could draw more moisture from a separate weather system over the Atlantic, producing further periods of rain on Saturday. Areas that could see a more consistent period of rain include southern New Brunswick, Nova Scotia and Prince Edward Island. With the system, showers will produce total rainfall of 2-10mm. Areas that receive more consistent rainfall can expect 10-40mm.
Showers and areas of rain are expected across the Maritimes Friday evening through Saturday. Areas in green will be more likely to receive more consistent rainfall totaling 10mm or more.
Connection in Florida, watch the forecast
A warning about rain on Saturday. The system over the Atlantic is what remains of the one that caused significant flooding in the state of Florida this week. In some cases, when a front arrives from the west and a low pressure system moves up from the south, the two can become more intertwined, enhancing the expected rain.
Satellite images showing a large amount of water vapor still present in the low pressure system that hit South Florida with flooding.
I would say it’s only a low risk at the moment, but it’s a scenario worth monitoring, especially in Nova Scotia. Current satellite images show that there is still a huge amount of moisture remaining in this Florida system. If it combined more than expected with the cold front, it would certainly be capable of producing a flood risk in the event of heavy rain or downpours. My recommendation would be to check the forecast several times before Saturday.
This same system continues to have a low chance of tropical development. An area of the Gulf of Mexico also continues to be monitored for any risk of a tropical system developing.
Areas monitored for the development of the tropical system. The Gulf of Mexico area now has a 40 percent chance of developing over the next seven days.
