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The Alaska Interagency Coordination Center (AICC) reported yesterday: "Low winter snowpack in north-central Alaska, warm spring temperatures, and a lack of precipitation has driven fuel conditions to historical maximum levels in Tok and Fairbanks. Current conditions create the potential for rapid fire spread rates, crown fires, and higher intensity fires. A high pressure weather system centered over Alaska exacerbates the existing conditions." The National Weather Service this morning (30 May 2010) has issued "red flag" warnings for much of Alaska's interior, along with portions of the North Slope of the Alaska Range.  The warnings, which extend to late in the evening on 30 May, mean that "conditions are occurring or will occur which could lead to the development of large and dangerous fires."  See NOAA's Alaska Fire Weather for the latest watches and warnings. The AICC also said yesterday that  the current fire behavior and activity "is uncharacteristic for this time of year and is requiring a significant response statewide from Alaskan, Canadian and Lower-48 resources."  By late evening on 29 May, the last 5 available smokejumpers in Alaska were en route to a fire, emptying the smokejumper base in Fairbanks and bringing the total number of jumpers committed to fires to seventy.  The jumper base reported that none of the committed jumpers could be quickly demobilized from current fires to attack new fires.  With such "initial attack" firefighting resources constrained, fires will have more time to grow in size before firefighters arrive. According to today's Situation Report from the Alaska Interagency Coordination Center (AICC), there are 85 fires burning in the state.  A total of 193 fires have burned 98,163.3 acres so far this year.  The AICC Morning Highlights today said:  "Alaska is experiencing unprecedented fire activity for May that is more characteristic of extreme July conditions."  It added: "On a scale of 1-5, Alaska has now reached Preparedness Level 4. It means that multiple units are experiencing fire starts and there are several large, staffed fires. The probability of ignition is high, and conditions/ resistance to control are high to extreme, and weather conditions exist that promote fire growth. It also reflects the number of instate and out of state resources committed/required."

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.

While researchers are confident that the higher temperatures and resulting changes in snowpack, Colorado River flow, vegetation mortality and wildfires are human-caused, they don't know whether the drought that has plagued the West for the last 10 years – the worst since record-keeping began – is because of humans, Overpeck said.