Cold snap freezes South America – beaches whitened, some areas experience snow for the first time in living memory

From the “weather is not climate” department, more chilling news from the southern hemisphere.

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Guest post By Alexandre Aguiar

MetSul Weather Center via ICECAP

A brutal and historical cold snap has so far caused 80 deaths in South America, according to international news agencies. Temperatures have been much below normal for over a week in vast areas of the continent. In Chile, the Aysen region was affected early last week by the worst snowstorm in 30 years. The snow accumulation reached 5 feet in Balmaceda and the Army was called to rescue people trapped by the snow.

In Argentina, the snow in the region of Mendoza, famous for its winery, was described by localimagemeteorologists as the heaviest in a decade. The temperature in the morning of July 16th was the lowest in the city of Buenos Aires since 1991: -1.5C. The cold snap caused a record demand for energy and Argentina had to import electricity from Brazil. Many industries in Argentina were shut down due to gas shortage.

It snowed in nearly all the provinces of Argentina, an extremely rare event. It snowed even in the western part of the province of Buenos Aires and Southern Santa Fe, in cities at sea level.

The most famous beach of Argentina, Mar del Plata, was whitened by the snow in the morning of July 15th, a scene only seen in recent memory in 1991, 2004 and 2007. See below:

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The snow was heavy even in Northern Argentina. In Santiago Del Estero, according to media reports, some areas experienced snow for the first time in living memory. In the province of Tucuman, some town saw snow for the first time since 1921 (Gaceta de Tucuman newspaper).

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In Uruguay, there were widespread reports of sleet and even snow mixed with rain in towns in the Southern and Eastern part of the country, even in the capital Montevideo. At leas two deaths have been blamed in Uruguay on the low temperatures. Hospitals were packed with patients with respiratory illness.

In Paraguay, at least nine people died due to the cold weather in only 3 days. Cattle were very affected and one thousand animals died of hypothermia. In Bolivia, dozes of people died in consequence of the very low temperatures. In some areas of the nation the cold period was described as the worst in 15 years. It even snowed in the Chaco of Bolivia, one of warmest areas of South America, where the local population never saw snow before. Classes were suspended in Bolivia for three days to prevent more cold related deaths (El Nacional newspaper from Bolivia).

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Southern Brazil was also very affected by the cold air eruption from the Southern Pole. Last week the temperature dropped to -7.8C in the city of Urupema, Santa Catarina. In Rio Grande do Sul, in the hills of the state, temperature felt to -4.9C in the city of Cambara. In the state of Paran�, the low was -6C. Only the nights were freezing, but the afternoons were very cold. In some days, temperature failed to reach 5C in many towns, the first time in a decade. Flurries observed in towns of Rio Grande do Sul, Santa Catarina and Parana and sleet was also reported in Western Santa Catarina.

The most striking scenes came from the top of Morro da Igreja, a 1800 meters elevation in the state of Santa Catarina. The area recorded snow and freezing rain. As anyone can imagine, freezing rain is extremely rare in Southern Brazil. The event was witnessed and photographed by weather observers from MetSul Marcelo Albieri and Caio Souza.

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On July 14th, in the afternoon hours, temperatures in the hills of Rio Grande do Sul state in Southern Brazil were lower than in Marambio, the main polar base of Argentina in Antarctica. In Central Brazil, in the tropics, the long streak of cold days was considered extremely rare. It was so cold that thousand of animals died in this region of Brazil known for its cattle, just South of the Amazon basin.

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Maybe the most notable fact took place in North South America. The cold reached Amazon and temperatures felt to as low as 7C in towns in the Amazon Forest in the states of Acre and Rondonia. Temperature even felt in Roraima, where the state capital Boa Vista record 20C (normal lows are 25C) and the wind were blowing from the South.

Boa Vista is located at 2 degrees North of latitude, so the influence of the Antarctic cold blast crossed the Equator line and reached towns in the Northern Hemisphere. It would be the same of a cold snap from the Arctic crossing the entire North America continent, the Caribbean and reaching North Brazil in cities at 2 degrees South of latitude as Santarem, a bizarre situation.

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123 Comments
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July 20, 2010 6:56 pm

Now you just know the “warmers” will say this is more proof of global warming because global warming causes everything and no matter what, it’s always either “robust” or “unprecedented!”

Neil
July 20, 2010 7:03 pm

I fear a cooling planet far, far more that I fear a warming planet.
It’s hard to grow crops when the ground is covered with snow and ice.

Gail Combs
July 20, 2010 7:05 pm

If this is the “warmest year evah” I would hate to see what a “cold year ” is like.

Douglas DC
July 20, 2010 7:12 pm

Cold is warm, warm is cold, cold is just a part of the warm, the warm is all. Even if it is cold, we are the warm. even if we have our long underwear on, warm is, still….
Actually repeating what a Co-worker told me slightly paraphrased.
Got Wood? Coal? Gas?
this could be the winter that did the deed to AGW..

BarryW
July 20, 2010 7:19 pm

Of course this supports AGW. More extreme events, yada, yada and so forth.

Zeke the Sneak
July 20, 2010 7:31 pm

“Mortes de bovinas devem passar 2 mil”
This is truly devastating.

chillguy33
July 20, 2010 7:36 pm

Weather is inseparable from climate. Weather has nothing to do with climate projections, however.

j.pickens
July 20, 2010 7:45 pm

Let me get this straight.
The Southern Hemisphere Winter crossed the equator, and caused cooling in the Northern Hemisphere?
Has this ever happened before, crossing either North or South?

Gerald Machnee
July 20, 2010 7:45 pm

Ah, yes, we have reached the tipping point.

Aldi
July 20, 2010 7:47 pm

A trend for things to come, in a thousand year or two it will become apparent that we are falling back to an ice age. The 3 or 4 coming solar cycles will be weak ones. Thats a lot of years in which our oceans will lose heat.

Editor
July 20, 2010 7:52 pm

So I’ve been keeping an eye on the Antarctic Oscillation (AAO), after Julienne pointed out that the increase in Antarctic Sea Ice Extent over the last several months;
http://nsidc.org/data/seaice_index/images/daily_images/S_stddev_timeseries.png
may be related to the recent strong positive Antarctic Oscillation:
http://www.cpc.noaa.gov/products/precip/CWlink/daily_ao_index/hgt.aao.cdas.gif
Note that June had the 2nd highest positive anomaly in the historical record, second only to July 1979:
http://www.cpc.noaa.gov/products/precip/CWlink/daily_ao_index/aao/monthly.aao.index.b79.current.ascii.table
Here is a good animation of the Southern Polar Vortex and AAO over the last month (Note that red is high pressure and blue is low pressure):
http://www.cpc.noaa.gov/products/intraseasonal/z500_sh_anim.shtml
I’ve also been watching how this is related to the rest of the globe (Note the pocket of low pressure Antarctic air that found its way over South America in the last 10 days. Also note that the Arctic was dominated by a high pressure area, until early July when a low pressure area seems to have taken over);
http://www.cpc.noaa.gov/products/intraseasonal/z200anim.shtml
Here is a good animation of the Northern Polar Vortex and Arctic Oscillation (AO) over the last month:
http://www.cpc.ncep.noaa.gov/products/intraseasonal/z500_nh_anim.shtml
Here is some background on the Antarctic Oscillation and Antarctic Oscillation Index;
http://climate.eas.gatech.edu/dai/daigroup/staff/gongdaoyi/doc/Definition%20of%20Antarctic%20oscillation%20index.pdf
And here is a site that offer’s a wide array of data on Atmospheric and Ocean Indices:
http://www.esrl.noaa.gov/psd/data/climateindices/list/
Do we have a reader who has some atmospheric expertise and can comment/provide further reference material?

savethesharks
July 20, 2010 7:53 pm

Wow.
Great pictures. Freezing rain in Brazil. 5 feet of snow in Chile.
The part about the airmass of Antarctic origin advecting all the way across the Equator (modified, but still….same airmass)…is simply astounding.
I am sure this is all caused by CO2.
We have to curb emissions now…or the world is going heat up and freeze.
Chris
Norfolk, VA, USA

John J
July 20, 2010 7:54 pm

Pretty cold in Australia too:
Coldest July temperature ever recorded in Australia:
http://www.weatherchannel.com.au/main-menu/News/Breaking-News/Record-cold-but-still-no-snow.aspx
-20c at Charlotte’s Pass.
Of course, no coverage on main news websites…

GrantB
July 20, 2010 7:54 pm

“A brutal and historical cold snap has so far caused 80 deaths in South America…”
Not likely. Only increased “average” global temperatures lead to deaths.

July 20, 2010 7:55 pm

This winter, in Kansas(I say Kansas, because in a large part, one can track the U.S.’s weather patterns by watching the weather in that area) and a great many parts of the northern hemisphere had a protracted winter. All the while we are told the GW is occurring because the lows are higher and while we may be experiencing cold, that’s just weather. Now, it seems the southern hemisphere is experiencing the same “weather”. But the lows are higher……….when? This winter certainly wasn’t confined to the western hemisphere, I can recall the Brits(and many other parts of Europe) having great difficulties this winter. Perhaps it is just places that we don’t hear about. For instance, we don’t hear about the climate weather in Africa very much, nor do we in many parts of Asia. Looking at some climate tracking sites, we see there is considerable warming in the Arctic and the Antarctic. So, perhaps these are the places where the warming is occurring that allows us to declare, THIS IS THE HOTTEST YEAR EVUH!!!! Does it seem strange to anyone else, that these are also the places where very few reliable temp tracking stations exist?
How many thermometers are in the Arctic circle? How many(at properly spaced locations) are in the Antarctic? Central Asia? Africa? Is this where the warming is occurring? Currently, here in Kansas, it is hot. Of course, it’s July. It is supposed to be hot. It isn’t the hottest year evuh here, not by a long shot. And if it isn’t the hottest year evuh here, it is also not the hottest year evuh in much of the U.S. and Canada. If it is the hottest year ever, where, pray tell, is it hottest ever? Surely, somewhere, other than an airport, we broke some weather record that accumulated to climate. Where?

Amino Acids in Meteorites
July 20, 2010 7:59 pm

Please, no one even try to say this is because of co2 making the earth warm.

July 20, 2010 8:00 pm

This is an eye-opening description of the magnitude of the cold weather:
“Maybe the most notable fact took place in North South America. The cold reached Amazon and temperatures felt to as low as 7C in towns in the Amazon Forest in the states of Acre and Rondonia. Temperature even felt in Roraima, where the state capital Boa Vista record 20C (normal lows are 25C) and the wind were blowing from the South. Boa Vista is located at 2 degrees North of latitude, so the influence of the Antarctic cold blast crossed the Equator line and reached towns in the Northern Hemisphere. It would be the same of a cold snap from the Arctic crossing the entire North America continent, the Caribbean and reaching North Brazil in cities at 2 degrees South of latitude as Santarem, a bizarre situation.”
“Global warming” is the least of our worries.

July 20, 2010 8:01 pm

Australia is still hitting the lows BTW
http://www.telegraph.co.uk/news/worldnews/australiaandthepacific/australia/7874500/Alice-Springs-coldest-day-on-record.html
Just decided to get some of our curtains thermal lined – as there is a real ‘bite’ in the recent cold around Sydney.. Just came back from Katoomba up in the Blue Mountains and the usual practice there is to have a wood fire burning all day to keep the chill out.. Time to chop some more wood..

Amino Acids in Meteorites
July 20, 2010 8:05 pm

Don Easterbrook said warming ended in 1999 and cooling is coming. Here it is!

Hockeystickler
July 20, 2010 8:05 pm

Chilly in Chile ? Beastly in Brazil ? Awful in Argentina ? Say it isn’t so, Joe…….. James ? Phil ? Michael ? Albert ?

Stephan
July 20, 2010 8:12 pm

Its quite common for these cold snaps to occur here. I remember 1974 when the entire coffee crop was destroyed. Antarctica is a huge beast and occasionaly a large whirlpool of cold air will reach latitudes ~20.No doubt the increased size of Antarctica could have helped it along…

trbixler
July 20, 2010 8:21 pm

With NOAA planning our cattle will sadly freeze as well. Of course if farmers listen to NOAA we will starve. Our government believes in NOAA so we are doomed to sit in the dark and freeze unless we beg for some energy from our newly anointed kings and gods. Maybe they will allocate us a bird killing windmill, of course we will not be able to sleep due to the noise, so we will leave the lights on. Then again they will route all the power to themselves. Hottest weather in D.C. doubtful there or any where else just Hansen manning the thermometers.

July 20, 2010 8:53 pm

Australia’s BOM today declares we are in La Nina conditions. All the signs are pointing to below average global temperatures in the coming months.
http://www.bom.gov.au/climate/enso/

Amino Acids in Meteorites
July 20, 2010 9:00 pm

Anthony,
Will you be doing a post on the cold in Australia too?

Ray
July 20, 2010 9:06 pm

I think it is about time we define the number of years of weather to make it climate. This “weather is not climate” thing must have a limit or else they will use it forever, even if forever is 1000 years!

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