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Hunter Cutting

Most severe 30 days of weather in Minnesota record - 0 views

  • Thursday Flood Risk (and the most severe 30 days in Minnesota history?)
  • Paul's Star Tribune Outlook for the Twin Cities and all of Minnesota
  • we just lived through an incredible 30-day period. According to the local National Weather Service Office in Chanhassen we experienced 395 severe storms between June 17 and July 17. That compares to 120 severe storms in all of 2009! So in a mere 30 days we saw more than 3 TIMES more severe weather than we did all of last year.
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  • SPC issued a "moderate risk" of severe storms and tornadoes a total of 5 times, in just 30 days. To put that in perspective between 2008 and early 2010 SPC had issued 5 moderate risks. So we endured (in one month) what had previously taken over 2 years to achieve in terms of elevated weather risk.
  • Soak up today's blue sky and 80-degree highs, because the latest NAM/WRF model (probably the most accurate & reliable simulation of future weather) is printing out nearly 4" of rain for the metro area Thursday. If that verifies it would be nearly a MONTH'S worth of rain in less than 12 hours.
  • Finally, the latest from NOAA: June was the warmest month, worldwide, since accurate records were first started in 1880. It was the 4th consecutive month of record warmth around the world, the 304 month in a row where global temperatures were above the 20th century average. 2010 is still on track to be the warmest year (globally) on record, even warmer than 2005. More coincidences? Possibly, but at some point you look at all these trends, scratch your head, and wonder if maybe those climate scientists aren't right (a recent poll of published, active PhD climate scientists showed that 97% of them believe the earth's atmosphere is warming, and man has at least some role in this warming trend). That's good enough for me - should be good enough for all of us mere mortals (who don't study the earth's climate 18 hours/day). The professional (paid) deniers and their "institutes" will come up with more excuses and refutations, citing a global conspiracy among climate scientists. Don't believe them, any more than you'd believe a tobacco lobbyist denying the ill effects of smoking and the link between tobacco and cancer. The trends are apparent to anyone taking the time to really look at the science. No one heat wave, month or year proves anything, but what we have here is a steady trickle of evidence, a gradual accumulation of coincidences that can no longer be denied. Melting glaciers, thinning arctic ice, rising sea levels, an uptick in drought and 1-in-500 year floods are all symptoms. The earth's atmosphere is running a mild fever. The question: do we believe the doctors and treat the patient now, or wait for those symptoms to worsen? It's not ideology, it's not a political litmus test, it's not a "new religion." It's basic science.
Hunter Cutting

Russia declares state of emergency over wildfires driven by heatwave - 0 views

  • Russian President Dmitry Medvedev has declared a state of emergency in seven Russian regions because of wildfires fuelled by a heatwave. The death toll from the fires has risen to at least 34. The Russian emergencies ministry said 500 new blazes had been discovered over a 24-hour period, but most had been extinguished. Homes have been burnt in 14 regions of Russia, the worst-hit being Nizhny Novgorod, Voronezh and Ryazan. The state of emergency was announced in a decree that also restricted public access to the regions affected. Moscow is again shrouded in smoke from peat and forest fires outside the city. The fires, caused by record temperatures and a drought, have affected cereal harvests, driving wheat prices up.
  • Russians are bracing themselves for another week of high temperatures, with forecasts of up to 40C (104F) for central and southern regions. Officials also expect stronger winds in some regions, which will fan the flames. By Sunday night, wildfires were still raging across some 128,000 ha (316,000 acres).
  • Thousands of people have lost their homes and nearly a quarter of a million emergency workers have been deployed to fight the flames. President Medvedev described the situation on Saturday as a "natural disaster of the kind that probably only happens every 30 or 40 years". Moscow doctors say the elderly and toddlers should wear gauze masks outdoors.
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  • The city of Kazan, on the Volga river east of Moscow, was also blanketed in smog on Monday, an eyewitness told the BBC. Marek Zaremba-Pike said Kazan's air "smells of burnt wood and tastes of dust". "Usually we can see the Kazan Kremlin very clearly, but visibility is poor. You can't see it at all, just the river bank." More famous for its bitterly cold winters, the giant country's European part normally enjoys short, warm summers. However July was the hottest month on record. In Moscow, which sees an average high of 23C in the summer months, recorded 37.8C last Thursday.
Hunter Cutting

Russian grain prices up 38% on crop losses driven by record temperatures - 0 views

  • High temperatures, which rose to a record 37.4 Celsius (99 Fahrenheit) yesterday in Moscow, have damaged 32 percent of land under cultivation and forced Russia to declare states of emergency in 23 regions. Grain prices may double this year because of the drought, according to the Grain Producers’ Union.
  • Inflation may quicken to 8.1 percent by December, compared with the government’s annual forecast of less than 6.5 percent, according to Yaroslav Lissovolik, Deutsche Bank AG’s head of research in Moscow. That will put pressure on the central bank to raise its benchmark rate by year-end for the first time since December 2008, said Natalia Orlova, Moscow-based chief economist at Alfa Bank, Russia’s biggest private lender.
  • Higher rates “may cause a correction in short-term sovereign bonds and, later, in long-term sovereign bonds,” said Evgeniy Nadorshin, senior economist at Trust Investment Bank in Moscow and an adviser to Economy Minister Elvira Nabiullina. The government, which plans to sell 1.2 trillion rubles ($39.3 billion) of bonds on the domestic market this year to finance its budget deficit, may increase that figure to pay for subsidies and contain the drought’s fallout, Nadorshin said.
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  • Yesterday’s temperature in Moscow was the highest since Russia began keeping records 130 years ago, according to the website of the Hydrometeorological Monitoring Service. The previous high was 36.8 degrees in July 1920, during the Civil War. The temperature may rise to 38 degrees on July 29, according to Gidromettsentr, the state weather service. Russia, the world’s third-biggest wheat exporter, will harvest about 80 million metric tons of grain this season, 17 percent less than last year, according to Moscow-based researcher SovEcon. Grain prices rose as much as 33 percent last week on drought concerns, SovEcon said on its website. Drought is likely to have a bigger impact on prices in Russia than in other countries, Orlova said. Food accounts for 38 percent of the consumer price index in Russia, compared with 15 percent in the U.S. and 32 percent in China, Alfa estimates.
Hunter Cutting

Big snow storms not inconsistent with - and may be amplified by - a warming planet - 0 views

  • there was a detailed study of “the relationships of the storm frequencies to seasonal temperature and precipitation conditions” for the years “1901–2000 using data from 1222 stations across the United States.”  The 2006 study, “Temporal and Spatial Characteristics of Snowstorms in the Contiguous United States” (Changnon, Changnon, and Karl [of National Climatic Data Center], 2006) found we are seeing more northern snow storms and that we get more snow storms in warmer years: The temporal distribution of snowstorms exhibited wide fluctuations during 1901–2000, with downward 100-yr trends in the lower Midwest, South, and West Coast. Upward trends occurred in the upper Midwest, East, and Northeast, and the national trend for 1901–2000 was upward, corresponding to trends in strong cyclonic activity…..
  • Results for the November–December period showed that most of the United States had experienced 61%– 80% of the storms in warmer-than-normal years. Assessment of the January–February temperature conditions again showed that most of the United States had 71%–80% of their snowstorms in warmer-than-normal years. In the March–April season 61%–80% of all snowstorms in the central and southern United States had occurred in warmer-than-normal years…. Thus, these comparative results reveal that a future with wetter and warmer winters, which is one outcome expected (National Assessment Synthesis Team 2001), will bring more snowstorms than in 1901–2000. Agee (1991) found that long-term warming trends in the United States were associated with increasing cyclonic activity in North America, further indicating that a warmer future climate will generate more winter storms.
  • the U.S. Global Change Research Program (USGCRP) U.S. Climate Impacts Report from 2009, which reviewed the literature and concluded: Cold-season storm tracks are shifting northward and the strongest storms are likely to become stronger and more frequent.
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  • Large-scale storm systems are the dominant weather phenomenon during the cold season in the United States. Although the analysis of these storms is complicated by a relatively short length of most observational records and by the highly variable nature of strong storms, some clear patterns have emerged.112 [Kunkel et al., 2008] Storm tracks have shifted northward over the last 50 years as evidenced by a decrease in the frequency of storms in mid-latitude areas of the Northern Hemisphere, while high-latitude activity has increased. There is also evidence of an increase in the intensity of storms in both the mid- and high-latitude areas of the Northern Hemisphere, with greater confidence in the increases occurring in high latitudes.112 [Kunkel et al., 2008] The northward shift is projected to continue, and strong cold season storms are likely to become stronger and more frequent, with greater wind speeds and more extreme wave heights.68 [Gutowski et al, 2008]
  • The northward shift in storm tracks is reflected in regional changes in the frequency of snowstorms. The South and lower Midwest saw reduced snowstorm frequency during the last century. In contrast, the Northeast and upper Midwest saw increases in snowstorms, although considerable decade-to-decade variations were present in all regions, influenced, for example, by the frequency of El Niño events.112 [Kunkel et al., 2008]
  • Then we have this apparently as yet unpublished research presented by Dr James Overland of the NOAA/Pacific Marine Environmental Laboratory at the recent International Polar Year Oslo Science Conference (IPY-OSC) where he was chairing “a session on polar climate feedbacks, amplification and teleconnections, including impacts on mid-latitudes.” “Cold and snowy winters will be the rule, rather than the exception,” says Dr James Overland…. Continued rapid loss of sea ice will be an important driver of major change in the world’s climate system in the years to come…. “While the emerging impact of greenhouse gases is an important factor in the changing Arctic, what was not fully recognised until now is that a combination of an unusual warm period due to natural variability, loss of sea ice reflectivity, ocean heat storage and changing wind patterns working together has disrupted the memory and stability of the Arctic climate system, resulting in greater ice loss than earlier climate models predicted,” says Dr Overland. “The exceptional cold and snowy winter of 2009-2010 in Europe, eastern Asia and eastern North America is connected to unique physical processes in the Arctic,” he says.
  • Even though these storms occurred during warmest winter on record, I think the best way to talk about it until Overland publishes his work is the way NCAR’s Kevin Trenberth did on NPR (audio here): RENEE MONTAGNE, host:  With snow blanketing much of the country, the topic of global warming has become the butt of jokes. Climate skeptics built an igloo in Washington, D.C. during last weeks storm and dedicated it to former Vice President Al Gore, who’s become the public face of climate change. There was also a YouTube video called “12 Inches of Global Warming” that showed snowplows driving through a blizzard.For scientists who study the climate, it’s all a bit much. As NPRs Christopher Joyce reports, they’re trying to dig out. CHRISTOPHER JOYCE: Snowed-in Washington is where much of the political debate over climate change happens. So it did not go unnoticed when a Washington think-tank that advocates climate action had to postpone a climate meeting last week because of inclement weather. That kind of irony isnt lost on climate scientists. Most don’t see a contradiction between a warming world and lots of snow. Heres Kevin Trenberth, a prominent climate scientist at the National Center for Atmospheric Research in Colorado. Mr. KEVIN TRENBERTH (Scientist, National Center for Atmospheric Research): The fact that the oceans are warmer now than they were, say, 30 years ago, means there’s about, on average, 4 percent more water vapor lurking around over the oceans than there was, say, in the 1970s. JOYCE: Warmer water means more water vapor rises up into the air. And what goes up, must come down. Mr. TRENBERTH: So one of the consequences of a warming ocean near a coastline like the East Coast and Washington, D.C., for instance, is that you can get dumped on with more snow, partly as a consequence of global warming. JOYCE: And Trenberth notes that you don’t need very cold temperatures to get big snow. In fact, when the mercury drops too low, it may be too cold to snow. There’s something else fiddling with the weather this year: a strong El Nino. That’s the weather pattern that, every few years, raises itself up out of the western Pacific Ocean and blows east to the Americas. It brings heavy rains and storms to California and the South and Southeast. It also pushes high-altitude jet streams farther south, which brings colder air with them. Trenberth also says El Nino can lock in weather patterns like a meteorological highway, so that storms keep coming down the same track. True, those storms have been big ones – record breakers. But meteorologist Jeff Masters, with the Web site Weather Underground, says it’s average temperatures — not snowfall — that really measure climate change. There’s more water vapor lurking around the oceans, and whatever the proximate cause of any one snow storm, there is little doubt that global warming means the overwhelming majority of East Coast storms will be sweeping in more moisture and dumping it on the ground.
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