Barry weakens after making landfall

Barry has been downgraded to a tropical depression after making landfall west of New Orleans on Saturday as a Category 1 hurricane.

Although Barry did not bring devastating flooding as some forecasters had originally thought similar to Hurricane Katrina in 2005, parts of Louisiana did receive more than 400 mm of rain which swamped the Mississippi River delta.

Emergency responders rescued at least 90 residents but there were no reports of fatalities.

Remnants of Barry have been moving northward with heavy rain across the American South up to the Midwest.

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Louisiana braces for Barry

Barry TWN
Tropical Storm Barry continues churning in the northern Gulf of Mexico with sustained winds of more than 100 km/h.

The U.S. National Hurricane Center says Barry is expected to make landfall as a hurricane along the coast of Louisiana on Saturday morning.

The city of New Orleans is on alert for heavy rain (up to 500 mm) and flooding along with storm surges although no evacuations have yet been ordered.

This is the first tropical system to impact the United States in 2019.

After landfall, Barry is expected to weaken and head northward through the Mississippi Valley.

State of emergency lifted in Alberta

AB Yellowhead County July 10.19

Highway cut in half by floodwaters in Yellowhead County, AB, 10 July 2019 (Facebook)

Days of severe weather including heavy rain, thunderstorms, hail, tornadoes and flooding led officials in western Alberta to declare a state of emergency.

However, Yellowhead County (west of Edmonton) dropped the declaration on Wednesday when floodwaters receded.

Many roads had to be closed or were made impassable after flooding and drivers were being asked to obey any barriers in place.

Residents were being warned about possible contamination of their drinking water.

Yellowhead County officials say at least 25 homes were directly impacted by floodwaters.

Brief heat wave ends

Aboiteau Beach, Cap-Pele, NB, 04 July 2019 (Dearing)

In less than two hours, the temperature in Greater Moncton dropped from 31.1°C to 24.0°C late this afternoon – a difference of seven degrees.

A cold front moved through New Brunswick with thunderstorms marking an abrupt end to the summer’s first brief heat wave.

Environment Canada even issued a tornado warning for the Grand Lake area after a possible twister developed south of Boiestown.

The warning was lifted after 30 minutes and no damage or injuries were reported.

Record highs have been broken in a number of communities across the Maritimes.

Friday, 05 July:

  • Greater Moncton, new record 34.0°C, old record 30.6°C from 1983
  • Kouchibouguac NP, new record 31.1°C, old record 33.9°C from 1939
  • Grand Manan, new record 31.7°C, old record 30.0°C from 1999
  • Halifax Stanfield Airport, 32.7°C, old record 31.4°C from 2013

Saturday, 06 July:

  • Greater Moncton, new record 31.4°C, old record 31.1°C from 1976

(Data courtesy Environment Canada)

Freak hailstorm in western Mexico

Guadalajara was inundated with almost one metre of hail when a freak hailstorm moved through parts of Jalisco state on Sunday.

The governor posted photos on social media of buried vehicles, damaged homes and city workers alongside the Mexican Army shoveling the hail – even bulldozing it.

No reports of injuries or fatalities.

At 1,600 metres (5,000 feet) above sea level, meteorologists say high elevation played a role as one thunderstorm moved out and another one developed rapidly behind it bringing a huge quantity of small hailstones.

June 2019 – Mild and wet

Strawberry plant in blossom after rain, NE Moncton, 29 June 2019 (Dearing)

The average monthly temperature for June in Greater Moncton was at least close to normal compared to a damp, cold May.

While daytime highs climbed to 20°C or higher on 20 days, significant heat was scarce and the thermometer didn’t even get close to 30°C.

Rainfall was heavier than normal – a measurable amount was recorded on 21 days – following a trend which began in early spring.

About three-quarters of the precipitation fell during the last ten days of the month.

JUNE 2019 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH  21.0°C

Average LOW  8.8°C

AVERAGE  14.9°C (about 0.3 degrees BELOW normal)

Extreme HIGH  26.0°C (19 June)

Extreme LOW  2.8°C (01 June)

RAINFALL  128.9 mm (almost 30 percent ABOVE normal)

(Data courtesy Environment Canada)

Heavy rain hits Maritimes

Ominous sky over Jones Lake, Moncton, 04 June 2019 (Dearing)

A slow moving low pressure system crossed the Maritime Provinces on Friday bringing heavy rain to the region.

Environment Canada had posted rainfall warnings for many areas with 40 to 60 mm in southern New Brunswick and Prince Edward Island and up to 100 mm in northern Nova Scotia.

Here are some rainfall totals (in mm):

  • Parrsboro, NS  123
  • Greenwood, NS  81
  • Kejumkujik NP, NS  72
  • Saint John, NB  61
  • Charlottetown, PEI  54
  • Summerside, PEI  53
  • Greater Moncton Airport, NB  52
  • Halifax Stanfield Airport, NS  41
  • Fredericton, NB  30
  • Yarmouth, NS  22

Thundersnow in B.C.!

A thunderstorm with snow is called thundersnow and it struck the British Columbia Interior just two days before the start of summer!

An unstable air mass bringing cold air from Alaska is to blame for the rare thundersnow which covered mountainous terrain in the Okanagan Valley with about 10 cm.

Snow fell above 1500 metres with a snow/rain mix down to 1100 metres and a chilly rain at sea level.

About 10 cm of snow was also expected in the Alberta Rockies from a similar system.

Severe weather in Manitoba, NW Ontario

tstorms
After a hot and windy day across southern Manitoba, severe thunderstorms developed late Friday afternoon with heavy rain, hail and lightning strikes causing at least one grass fire.

Daytime highs soared to 36.6°C in Winnipeg and 37.3°C in Carman which was the hot spot in Canada.

Temperatures dropped dramatically after the storms rolled through and damaging winds up to 100 km/h were reported in some areas along with nickel-sized hail.

The heat and thunderstorms moved east into northwestern Ontario with Kenora reaching 33.0°C yesterday and Armstrong climbing to 32.3°C today.

Spring 2019 in review

Spring 2019
Meteorological spring in Southeast New Brunswick turned out to be colder and much wetter than normal compared to the 30-year average.

While March and April both had above normal temperatures, May was colder by a significant 2.4 degrees which brought down the overall seasonal average.

Rainfall was heavy in April and May and while snowfall was below normal for the three month period, the final snow flurries were spotted as late as 21 May.