Flooding in Fredericton, 24 Apr 2019 (GNB/Yerxa)
It’s a sure sign of spring…
New Brunswick’s annual program monitoring the status of rivers, ice jams and other flood issues officially launched today.
Historic flooding in 2018 and 2019 devastated many communities along the St. John River although individuals and municipal governments were better prepared last year.
Higher than normal water levels forced the closure of the Trans-Canada Highway between Fredericton and Moncton for almost a week and even longer the year before.
Officials say a variety of factors contribute to flooding including precipitation, snow pack, air temperatures and river ice.
Geranium with light frost damage in NE Moncton, 19 Sept 2019 (Dearing)
It was a cold morning in the Maritimes and frost advisories were posted for all three provinces.
Scattered frost was recorded in many areas including Greater Moncton where the thermometer fell to
-0.4°C at the airport which is close to the 2008 record low of -1.2°C.
However, a minimum of -4.4°C was set in the area in 1945.
This was a light frost and much earlier than the average date of 04 October.
New record lows for 19 September:
New record -2.1°C
Old record -1.6°C set in 2008
Records in this area have been kept since 1883
Saint John Airport
New record -0.7°C
Old record -0.5°C set in 2009
Records in this area have been kept since 1871
Port Hawkesbury, NS
New record 0.3°C
Old record 2.0°C set in 1994
Records in this area have been kept since 1875
New record 0.6°C
Old record 2.1°C set in 2014
Records in this area have been kept since 1898
(Data courtesy Environment Canada)
Post-tropical depression Erin interacted with an incoming low pressure system to produce lots of rain in the Maritimes.
Environment Canada says the heaviest amounts were recorded in northern Nova Scotia and the Annapolis Valley – Parrsboro and Greenwood each had more rain from this storm than all of July and August combined.
Some roads were damaged and even washed out by surface runoff or flooding.
Erin’s direct path along Nova Scotia’s south shore produced wind gusts up to 80 km/h.
The storm brought tropical air with a high of 23°C in Greater Moncton on Friday but a humidex of 32.
Rainfall totals (mm):
Parrsboro 162 Greenwood 127
Halifax (city) 48
(Data courtesy Environment Canada)
Ominous sky over Moncton, 10 Aug 2019 (B. Smith-Peterson/Facebook)
A line of strong thunderstorms moved across New Brunswick, western Prince Edward Island and eastern Nova Scotia on Saturday bringing heavy downpours, hail and strong winds.
Greater Moncton was under a severe thunderstorm warning for a few hours with hail about 1 cm in diameter being reported outside the city.
Heavy rain also caused flash flooding in downtown Shediac with social media posts showing vehicles making their way through water clogged streets.
Temperatures also plunged from the low 20s to the mid-teens as the storms passed.
Although the rain is needed, concert goers might disagree with the first show being staged on Magnetic Hill today in four years.
Snowflakes falling in NE Moncton, 14 May 2019 (Dearing)
Sprinter is a portmanteau of spring and winter which aptly describes the recent weather in Southeast New Brunswick.
Already mid-May, Environment Canada indicates Greater Moncton is running about three degrees below normal for the month.
Snow mixed in with rain last night and 0.6 cm was recorded at the airport.
Today’s daytime high was 5.3°C and the forecast shows little change for tomorrow.
The Victoria Day long weekend is expected to bring some sunshine but temperatures will remain below seasonable.
Flooding along the St. John River in Maugerville, 23 April 2019 (5th Canadian Division/Facebook)
For the second year in a row, floodwaters from the St. John River have forced the closure of the Trans Canada Highway between Moncton and Fredericton.
The New Brunswick Department of Transportation says drivers must detour at the Oromocto exit or at the River Glade exit and travel through Saint John.
The detour will add approximately 90 kilometres in each direction.
River Watch officials say water levels in Saint John are expected to reach last year’s historic marks by Friday and while now receding in Fredericton, the water will likely rise again by this weekend.
Snow in west end Moncton, 09 April 2019 (Dearing)
Real winter weather in New Brunswick started early – back in mid-November – and the relentless season hangs on.
Greater Moncton recorded 7 cm of snow overnight with more than 10 cm in southwestern New Brunswick and western Nova Scotia.
The strong April sun had melted most it by the end of the day.
But another weak system tonight could bring another 4 cm.
Warmer weather is on the way with Environment Canada forecasting highs in the double digits by the weekend.
Magnolia tree in bloom, downtown Moncton, spring 2018 (Dearing)
The spring equinox officially arrived at 6:58pm ADT in the Northern Hemisphere which marks the moment when the Sun is directly above the equator as it moves northward.
The length of days are now roughly equal to the length of nights and the amount of daylight will continue to increase until the first day of summer on June 21st.
To mark the end of astronomical winter, here are a few highlights across Canada from the last three months:
Record highs were set in Atlantic Canada just before Christmas with 12.8°C in Greater Moncton on 22 December.
Edmonton broke numerous cold records during February with readings as low as -41.2°C and all but four days were in the minus 20’s and 30’s.
Snowfall records fell in coastal British Columbia from 10-12 February with 69 cm in Nanaimo and 52 cm in Victoria – more than what is normally received in an entire winter season!
(Data courtesy Environment Canada)
It has been quite a winter across Canada with no region reporting a shortage of snow.
Snowfall has been especially heavy in the West this season especially coastal British Columbia which usually sees only scant amounts.
Victoria, BC had almost 70 cm of snow in February – more than what typically falls all winter – even higher than snowy Moncton at nearly 60 cm last month.
While many areas of the West have already exceeded their snowfall amounts for an average winter, much of the East is still falling short of a normal season.
The deepest snowpack can be found in northern New Brunswick, central Quebec, Labrador, the Rockies and B.C.’s mountain ranges.
Creek Road near Sussex, NB is washed out by flooding, 25 Jan 2019 (SussexArea/Facebook)
It’s been quite a week for stormy weather in New Brunswick.
The latest system brought heavy rain and a period of freezing rain to the province.
Ice-clogged storm drains caused the water to backup turning streets into rivers in areas such as downtown Moncton.
Municipalities were urging residents to help public works crews by trying to clear drains near their homes.
Mild temperatures contributed to snowmelt and the added rush of water was enough to washout some roads and bridges.
Strong winds along the coast also gusted to more than 100 km/h.
Rainfall amounts (mm):
Mechanic Settlement 68
Sussex area 55
Saint John 25