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Sun, 27 Nov 2022
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Snowflake Cold

Mongolia warns of extreme cold in coming week

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Large parts of Mongolia are expected to see extreme cold from the coming Monday and through the entire week, with expected overnight temperatures of 39 to 47 degrees Celsius below zero, the country's weather agency said Friday.

The weather agency said that heavy snow and snow storms are hitting the country's eastern and western parts, urging the public, especially nomadic herders and drivers, to take extra precautions against possible disasters.

Mongolia's climate is strongly continental, with long and frigid winters. A temperature of minus 25 degrees Celsius is standard during winter. Unstable weather events are also common in the country throughout the year.

Info

New analysis helps reconcile differences between satellites and climate models

Weather Satellite
© NASA
New research provides an improved understanding of the causes of historical changes in climate and increases confidence in model simulations of continued global warming over the 21st century.
Satellite observations and computer simulations are important tools for understanding past changes in Earth's climate and for projecting future changes.

However, satellite observations consistently show less warming than climate model simulations from 1979 to the present, especially in the tropical troposphere (the lowest ~15km of Earth's atmosphere). This difference has raised concerns that models may overstate future temperature changes.

Rather than being an indicator of fundamental model errors, the model-satellite difference can largely be explained by natural fluctuations in Earth's climate and imperfections in climate-model forcing agents, according to new research by Lawrence Livermore National Laboratory (LLNL) scientists.

"Natural climate variability appears to have partly masked warming over the satellite era," said Stephen Po-Chedley, a LLNL climate scientist and lead author of a paper appearing in the Proceedings of the National Academy of Sciences.

The results of the study provide an improved understanding of the causes of historical changes in climate and increase confidence in model simulations of continued global warming over the 21st century.

"Although the Earth is warming as a result of human emissions of carbon dioxide, natural variations in the Earth's climate can temporarily accelerate or diminish this overall warming trend," noted Zachary Labe, a co-author from Princeton University and the National Oceanic and Atmospheric Administration's Geophysical Fluid Dynamics Laboratory. In addition to modulating the rate of warming, natural fluctuations in climate such as the Interdecadal Pacific Oscillation also produce unique patterns of regional surface temperature change.

Snowflake

Heavy snowfall in 3 states of Australia just days before start of summer - 16.5 inches reported

Perisher in alpine NSW recorded a staggering 25cm of snow on the slopes overnight

Perisher in alpine NSW recorded a staggering 25cm of snow on the slopes overnight
With only a few days to go until summer officially starts, residents in several states woke to subzero temperatures and a fresh blanket of snow on the ground.

According to the Bureau of Meteorology, the cold snap is expected to continue in the NSW alpine area on Thursday.

Ski resorts in NSW, Victoria and Tasmania reported their heaviest fall since the end of the snow season in October.

On Wednesday morning, Perisher in alpine NSW, recorded a staggering 25cms of snow had fallen on the slopes overnight.

The latest powder dump takes the total to an eye-popping 42cm of snow over the past week, with summer just a week away.


Comment: Another report from a day earlier: Late heavy spring snowfall in Australia & New Zealand - foot of snow reported


Snowflake

Northern Hemisphere snow cover is 2nd highest in 17 years

Northern hemisphere snow cover.
© National Oceanic and Atmospheric Administration
Northern hemisphere snow cover.
Snow cover is present from Minnesota all the way to Siberia.

The Northern Hemisphere is off to a good start for snow cover this season.

A check of Northern Hemisphere snow cover shows we're at the second-highest snow cover level in the past 17 years, since 2005.

Northern Hemisphere snow cover seasonal data
© NOAA
Northern Hemisphere snow cover seasonal data
You can see on the map below how there's snow cover from Minnesota, all the way north to the Arctic Circle across North America.

Snowflake

Wiarton area in Ontario saw over 120 cms (4 FEET) of snow during multi-day squall event

Wiarton saw over 120 centimetres of snow during a multi-day squall event from Nov. 17-20, 2022.
© Stu Paterson
Wiarton saw over 120 centimetres of snow during a multi-day squall event from Nov. 17-20, 2022.
The multi-day snow event that blanketed most of Bruce and Grey counties left more than 120 centimetres of accumulation in the Wiarton area.

Environment Canada meteorologist Geoff Coulson says the lake effect snow event brought squall activity to most of the region, but the Bruce Peninsula was most likely the hardest hit.

The snow started falling last Thursday evening and intensified at different times over the next few days, before the heaviest stuff tapered off by Sunday evening.

Coulson says the monitoring station at the Wiarton Keppel International Airport recorded somewhere between 120-125 centimetres had fallen during the multi-day weather event.


Snowflake

Late heavy spring snowfall in Australia & New Zealand - foot of snow reported

Mt Hotham

Mt Hotham on 22 November
There's been more snowfall for Australia and New Zealand just over a week until the start of meteorological summertime there.

In Australia, where the2022 ski season ended in early October, the latest snowfalls, although among the heaviest yet, follow a series of regular dumps that have continued over the past month.

Ski areas including Falls Creek (pictured below on 22 November), Mt Hotham (above) and Perisher reported 25-30cm (10-12") more snowfall in the past 24 hours.


Snowflake

First snowfall of the season in Scandinavia causes havoc on the roads

woman walks on a snowy road as a snowplow clears the road in Stockholm, Sweden on Nov. 21, 2022.
© Wei Xuechao/Xinhua
woman walks on a snowy road as a snowplow clears the road in Stockholm, Sweden on Nov. 21, 2022.
Denmark

It was a snowy start of the week for parts of Denmark. Roads were slow as traffic jams were reported during the first snowfall of the season. The Island of Møn received around 20 centimetres of the white stuff on Sunday

However, it won't last for long as the weather will turn in the next few days, for most of the country, bringing rain.


Snowflake

First snow in Inner Mongolia, China

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Alashan league in north China has been transformed into a fairytale wonderland, thanks to the first snowfall of the season.


Igloo

Western New York state slammed with more than 6 feet of snow, triggering road closures and flight cancellations (UPDATE)

Heather Ahmed uses a shovel to dig a path next to a vehicle after an intense lake-effect snowstorm impacted the area Friday in Hamburg, New York.
© John Normile/Getty Images
Heather Ahmed uses a shovel to dig a path next to a vehicle after an intense lake-effect snowstorm impacted the area Friday in Hamburg, New York.

New Yorkers in the western part of the state are still being slammed with a massive snowstorm that has shut down roads, triggered driving bans and canceled flights the weekend before the Thanksgiving holiday.

By Friday evening, 5.5 feet of snow had covered streets in the town of Orchard Park, New York, near Buffalo in hard-hit Erie County, according to the National Weather Service. As the snowfall intensified, two county residents died from cardiac complications related to shoveling and attempting to clear the grounds, said County Executive Mark Poloncarz.

"We send our deepest sympathies and remind all that this snow is very heavy and dangerous," Poloncarz said.


Comment: Update

ABC7ny.com reports:
Snow totals across the Buffalo area and northern New York from lake-effect snow in November 2022

The Buffalo metro area was hit particularly hard by historic lake effect snow, with some areas south of the city receiving more than 5 feet by early Saturday.

According to the National Weather Service, the suburb of Orchard Park, home to the NFL's Buffalo Bills, reported 77 inches (196 centimeters) by early Saturday. About 80 miles (129 kilometers) northeast of the city, the town of Natural Bridge, near the Fort Drum Army base, reported just under 6 feet.


The top 5 snowfall locations as of early Saturday afternoon are:

ORCHARD PARK in Erie County with 77 inches

HAMBURG in Erie County with 73.7 inches

NATURAL BRIDGE in Jefferson County with 72.3 inches

BLASDELL in Erie County with 65 inches

ELMA in Erie County with 58.2 inches



Cloud Lightning

"Thunder snow" hits Buffalo area as monster storm grips region

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A dangerous lake-effect snowstorm paralyzed parts of western and northern New York, with more than a foot of snow already on the ground Friday morning in places and a driving ban keeping people off the roads in the Buffalo area.

The heaviest snowfall was expected in Buffalo, where the National Weather Service said up to 4 feet might fall in some spots through Sunday, with periods of near-zero visibility. Other areas could get a foot or less of the lake-effect snow, which is caused by frigid air picking up copious amounts of moisture from the warmer lakes.

Reports to the weather service early Friday exceeded a foot of snow along the eastern end of Lake Erie, with totals as high as 20 inches in Hamburg, N.Y., about 12 miles from Buffalo.

New York Gov. Kathy Hochul declared a state of emergency Thursday for parts of western New York, including communities along the eastern ends of Lake Erie and Lake Ontario. It covers 11 counties, with commercial truck traffic banned from a stretch of Interstate 90.

Erie County Executive Mark Poloncarz issued a driving ban beginning Thursday night, shortly after heavy snow punctuated by thunder and lightning -- known as "thunder snow" -- moved into Buffalo, quickly covering the ground and roads. The most intense snowfall was expected to last through Friday evening, with more falling on Saturday into Sunday.