Frost covers a maple leaf (Twitter)
When the temperature dropped to -0.3 C early this morning, frost could be found in Greater Moncton.
The coldest low in New Brunswick was -5.9 C at Edmundston!
Thanks to cool, dry air with no cloud cover, Environment Canada has issued another frost advisory for tonight.
But keep in mind it’s not that unusual based on the 30-year average (1981-2010).
The average last spring frost date is 23 May in Greater Moncton and the first fall frost is 2 October for a growing season of 131 days.
(Top) Swollen St. John River, 02 May 2018,(Bottom) A more typical flow, 12 May 2016 (NASA Earth Observatory)
Water levels have dropped below flood stage in most areas of the St. John River in what has become the worst flooding event ever recorded in New Brunswick.
The Emergency Measures Organization says only in the Jemseg area will levels be just above flood stage.
The Trans Canada Highway between River Glade and Oromocto finally reopened Friday after being closed for a week but dozens of roads remain closed due to flooding.
The Canadian Armed Forces has deployed 60 members to assist the provincial government with flood cleanup.
Almost 1,700 residents have registered with the Red Cross as evacuees and many who have returned home are finding heavy water damage to homes and cottages.
Flooding forces closure of Randolph Bridge on west side of Saint John, 05 May 2018 (Twitter/City of Saint John)
After steadily rising for more than a week, water levels along the southern portion of the St. John River have surpassed the historic flood in 1973.
Environment Canada is forecasting more rain for Southern New Brunswick with up to 20 mm possible by Monday after 30 mm fell Friday and early Saturday.
The Coast Guard and the Department of Fisheries and Oceans have provided vessels to help with evacuations and Transport Canada has deployed surveillance aircraft.
Almost 1,000 people have registered as evacuees with the Red Cross.
Many roads have been closed by the flooding including the Trans Canada Highway between River Glade and Oromocto – the detour through Saint John adds one hour of travel time between Moncton and Fredericton.
Tree falls near school bus in Mississauga, Ontario, 04 May 2018 (Twitter/Peel Regional Police)
A rapidly deepening low pressure system created strong winds gusting to hurricane-strength across Southern Ontario and Southern Quebec on Friday knocking down trees and power lines causing massive outages.
Three people were killed by fallen trees and a school bus filled with children in Mississauga had a near miss.
Toronto Pearson Airport had a maximum wind gust of 119 km/h while Montreal Trudeau Airport recorded 117 km/h – both are the windiest days ever in May.
Winds were also powerful on Saturday in Greater Moncton with a wind gust of 100 km/h – the strongest since January.
Floodwaters from St. John River lapping at the Trans Canada Highway near Jemseg, NB, 03 May 2018 (Hay/Facebook)
Floodwaters covering the road near Jemseg have forced the closure of the Trans Canada Highway between Moncton and Fredericton.
The Emergency Management Organization says the road could be closed for several days until water levels recede.
A long detour forces travellers to go through Saint John via Routes 1 and 7.
EMO says the water continues to rise along the southern St. John River and may exceed levels last seen during the historic 1973 flood.
Dandelions growing in NE Moncton, 02 May 2018 (Dearing)
Dandelions have made their return to Southeast New Brunswick a little later than usual thanks to a cold spring.
The yellow plants or weeds were spotted today when the temperature climbed to 24.5 C in Greater Moncton – the warmest high so far this year.
The hotspot in New Brunswick was St. Stephen at 29 C and Fredericton was not far behind at 28 C.
But a cold front is pushing through the province which will bring rain and dramatically lower temperatures overnight with single digit highs expected tomorrow.
Areas of Saint John under voluntary evacuation, 01 May 2018 (City of Saint John)
Flooding continues in Fredericton where water levels have increased again to a point where the benchmark of 2008 was reached.
New Brunswick’s Emergency Measures Organization is warning levels are rising along the southern region of the St. John River basin.
Residents from Jemseg and Gagetown to Quispamsis and Saint John are being told to be on high alert and expect flooding if it has occurred in the past.
Several neighbourhoods of Saint John are under a voluntary evacuation (see map above) due to flooding, road closures and rising waters along the river.
Tree in bloom at Fairview Knoll Park, NE Moncton, 28 April 2018 (Dearing)
Spring was mostly absent during the first two-thirds of April in Greater Moncton with daytime highs often barely above freezing and overnight lows which were much colder than normal.
Suddenly spring arrived during the last third of the month when temperatures jumped to 20 C and higher by day and above freezing by night.
While more rain fell during April compared to average, snowfall was scant which led to below normal precipitation overall.
The seasonal snow cover finally melted by mid-month but it had disappeared twice (late January and early March) since mid-December.
APRIL 2018 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 8.1 C
Average LOW -1.8 C
AVERAGE 3.2 C (about 0.3 degrees BELOW normal)
Extreme HIGH 21.2 C (24 April)
Extreme LOW -9.6 C (16 April)
RAINFALL 73.4 mm (slightly ABOVE normal)
SNOWFALL 8.4 cm (about 75 percent BELOW normal)
(Data courtesy Environment Canada)
Flooding along the St. John River in Fredericton, 28 April 2018 (Coleman/Twitter/Weather Network)
Recent heavy rains and melting snow have caused flooding along the St. John River Valley especially in Fredericton.
Streets and parking lots in the downtown core have been left underwater.
Emergency Management Organization officials say the river was 1.7 metres above flood stage in Fredericton by late Saturday – a level not seen since the major flood of 2008.
Communities further downstream have also been flooded including Maugerville and Jemseg with some roads impassable due to high water levels.
Given the recent stretch of below seasonal temperatures in Southeast New Brunswick, I wasn’t optimistic we would reach 20 C anytime soon.
But yesterday the thermometer climbed to 21.2 C in Greater Moncton marking the first time to reach and surpass that threshold in 2018.
Over the last five years, we have reached 20 C over a two week period from mid-April to early May.
(Data courtesy Environment Canada)