In the U.S., it's summer

In the U.S., it's summer weather and climate

From east of the Rockies to the northern regions of the United States of Canada established abnormally warm weather, more like the beginning of the summer, rather than in the middle of spring. On March 1, 2052 set national records of temperatures, and forecasters suspect that they will be much more.

Weather anomalies in February 2012.

In Europe and Asia this winter was surprisingly cold and snow, the resulting killing about 650 people. Australia has also been marked by record low temperatures, which has not happened since 1990. In the U.S., by contrast, there was a temperature above the norm.

Temperature anomalies in February 2012 compared to the years 1971-2000. Red circles denote rates higher than normal, blue — below normal.

Temperature maxima 1-15 March 2012 in the U.S..

In the states of Illinois, Indiana, Michigan, Wisconsin, and in the more northern regions (North Dakota, Minnesota and Canadian border areas) due to the warm air flow the temperature shot up to 20-27 ° C. In these areas of warming followed by numerous tornadoes formed at the junction zones of high atmospheric pressure in the east and low in the west, but usually their season begins only in late May — early July.

Zone of low pressure in the western U.S. and the front high pressure in the east.

List of record high temperatures in the U.S. on March 15, 2012:

Chicago, IL: 27 ° C, broken record, 1872, March 12, 1990 marked the same temperature. The March rate for Chicago -1 .. +8 ° C.

Springfield, Illinois 28,5 ° C, top record in 1995. The March rate for Springfield 0 .. +11 ° C.

Madison, WI: 28 ° C. A temperature in the middle of March is not fixed in any source. Earlier +27 ° C was only two weeks later.

Total for the country beaten 344 temperature record set on March 15 in other years, confirmed 67 records.

Temperature records March 15, 2012. 4604 of the possible record broken 344, confirmed 64. Total 411 records.

As Arctic Oscillation and North Atlantic Oscillation is currently in a positive phase, which does not allow cold air to enter the southern United States.

Arctic Oscillation (top) and the North Atlantic Oscillation (bottom).

Despite the apparent warming, forecasters believe that early to predict the anomalous heat in the summer of 2012. Settled warm weather may stop at the end of March, especially when you consider the influence of La Niña and El Niño, which will bring about changes in the weather in the next 30 days.

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