onlooker wrote:Can someone explain why this is happening in conjunction with the high heat levels in continental Europe? . It seems to be the opposite of North America in the winter now, whereby the cold mass front is pushed southward while the northmost regions are heating up more than usual.radon1 wrote:Forecasters called June 29 the coldest day in Moscow for 70 yearsThe temperature on the eve of the day rose to plus 11 degrees, with a climatic norm of plus 22–23 degrees, experts said. Similar indicators, according to their data, became “cold anomaly”
https://translate.google.com/translate? ... Dfrom_main
thanks T. Lot of reaarranging suggesting the Atlantic Meridional Overturning Circulation (AMOC) is continuing to slow and creating anomoulous conditionsTanada wrote:Basically the cold air that was over the Arctic Ocean shifted south over Moscow which caused the air over western Europe to shift north which pulled the hot Sahara air mass over western Europe.
Ibon wrote:asg70 wrote:HIGH numbers as there were famously deaths in european heatwaves some years back already and still nothing.
Unlike North America, Europeans mostly live without air conditioning. At least that was the case when I lived there for 10 years in the 80's From my recent visits it seems to still be the case.
If you are in your 80's in an apartment with no air conditioning and you get those extended 37 degree heat waves many will die. That was the case in the 2003 heatwaves. Mostly older folks living in apartments and homes with no air conditioning.
EnergyUnlimited wrote:Ibon wrote:asg70 wrote:HIGH numbers as there were famously deaths in european heatwaves some years back already and still nothing.
Unlike North America, Europeans mostly live without air conditioning. At least that was the case when I lived there for 10 years in the 80's From my recent visits it seems to still be the case.
If you are in your 80's in an apartment with no air conditioning and you get those extended 37 degree heat waves many will die. That was the case in the 2003 heatwaves. Mostly older folks living in apartments and homes with no air conditioning.
But our buildings, unlike those in large parts of the US are built of sound concrete/brick/stone based materials.
They tend to be good heat insulators and incidentally it keeps buildings during summer rather cool.
So there is not much need for airconditioning.
I don't know what are american standards of building but based on photos documenting one particularly horrible tornado in Joplin in 2011 I have concluded that residential homes there are built of paper, cardboard, plasterboard and other light weight products of rather inferior quality.
Only public buildings are built well and these were the only ones which have offered some meaningful resistance.
One way or another at my home we had nice 20-22*C inside while outside was 32-35*C in a shadow and much more in direct sunlight for several days. No air conditioning, though we can draw to our badroom air which have passed via underground basement to cool it.
EnergyUnlimited wrote:But our buildings, unlike those in large parts of the US are built of sound concrete/brick/stone based materials.
They tend to be good heat insulators and incidentally it keeps buildings during summer rather cool.
So there is not much need for airconditioning..
On Saturday, downtown Juneau, Alaska's capital city, hit 83 degrees, breaking a record that had stood for 110 years.
Climate change
During the last quarter of the twentieth century, the zone of latitude occupied by the boreal forest experienced some of the greatest temperature increases on Earth. Winter temperatures have increased more than summer temperatures. The number of days with extremely cold temperatures (e.g., −20 to −40 °C (−4 to −40 °F) has decreased irregularly but systematically in nearly all the boreal region, allowing better survival for tree-damaging insects. In summer, the daily low temperature has increased more than the daily high temperature.[54] In Fairbanks, Alaska, the length of the frost-free season has increased from 60–90 days in the early twentieth century to about 120 days a century later. Summer warming has been shown to increase water stress and reduce tree growth in dry areas of the southern boreal forest in central Alaska, western Canada and portions of far eastern Russia. Precipitation is relatively abundant in Scandinavia, Finland, northwest Russia and eastern Canada, where a longer growth season (i.e. the period when sap flow is not impeded by frozen water) accelerate tree growth. As a consequence of this warming trend, the warmer parts of the boreal forests are susceptible to replacement by grassland, parkland or temperate forest.[55]
In Siberia, the taiga is converting from predominantly needle-shedding larch trees to evergreen conifers in response to a warming climate. This is likely to further accelerate warming, as the evergreen trees will absorb more of the sun's rays. Given the vast size of the area, such a change has the potential to affect areas well outside of the region.[56] In much of the boreal forest in Alaska, the growth of white spruce trees are stunted by unusually warm summers, while trees on some of the coldest fringes of the forest are experiencing faster growth than previously.[57]
Lack of moisture in the warmer summers are also stressing the birch trees of central Alaska.[58]
A stifling heat wave has begun to take shape across large portions of the United States, with millions likely to see temperatures creep toward the century mark, along with even higher heat indexes by this weekend.
The heat wave is already generating excessive heat watches in the central United States, and by Wednesday the national weather map is likely to feature a blanket of heat advisories from the National Weather Service. The combination of sultry dew points and scorching air temperatures approaching will help make this event a dangerous one from a public health perspective.
Cities including Chicago, St. Louis, Washington, Philadelphia, New York, Nashville and Kansas City, Mo., are likely to see at least three days with temperatures between 95 degrees and 100 degrees, along with dew points — a measure of the amount of moisture in the air — above 70 degrees.
Heat hits 40°C in Tel Aviv, even higher near Dead Sea; heat wave blamed for massive wave of brushfires
A heat wave that struck Israel Wednesday sent temperatures soaring to near-record breaking heights.
The highest temperature in the country was recorded on the southern shores of the Dead Sea, near the site of Biblical Sodom, where the mercury hit 49.9° Celsius (122° Fahrenheit), a record for the spot.
Return to Environment, Weather & Climate
Users browsing this forum: No registered users and 5 guests