Bloomberg News

Warmer Weather to Settle In Across U.S. East, Forecasters Say

December 14, 2011

Dec. 14 (Bloomberg) -- The weather in most of the eastern U.S. will remain warmer than normal through at least Dec. 24, according to forecasters.

Temperatures may be 6 to 10 degrees Fahrenheit (3.3 to 5.6 Celsius) higher than average along much of the East Coast and the upper Midwest from Dec. 20 to 24, according to David Salmon, a meteorologist with Weather Derivatives in Belton, Missouri.

In forecasts for Dec. 19 to Dec. 23, both Commodity Weather Group LLC President Matt Rogers and MDA EarthSat Weather also predict temperatures will be at least 5 degrees higher than average for the East Coast, including New York.

“Widespread warming is expected to dominate the 1-10 day range yet again with only some minor fluctuations possible,” Rogers, based in Bethesda, Maryland, said in a note to clients.

Traders use long-range temperature predictions to gauge energy use and market fluctuations. Hot or cold weather can increase demand for heating and cooling.

The daily average temperature in New York for December was 4.3 degrees above normal through yesterday, according to the National Weather Service.

For Dec. 22, the normal average temperature in New York is about 36 degrees, according to MDA in Gaithersburg, Maryland. In Boston it’s 33; in Atlanta, 44; Houston, 54; St. Louis, 32; Chicago, 26; Seattle, 40; and in Burbank, California, it’s 54.

MDA and Rogers diverge in their 11- to 15-day forecasts, covering the period from Dec. 24 to Dec. 28. Salmon didn’t issue a comparable outlook.

Rogers predicts temperatures will be about 3 degrees higher along the East Coast, as well as in northern California and Nevada. The rest of the U.S. will be mostly seasonal, with the exception of the upper Great Plains, which may cool.

MDA’s 11- to 15-day outlook is for northern New England and the upper Great Plains to be warmer than normal with below- normal temperatures across the Southwest and Texas.

Rogers said there’s a chance that the warming trend that has held across the East through most of November and December may start to shift to a cooler pattern in January.

--Editors: Charlotte Porter, Dan Stets

To contact the reporter on this story: Brian K. Sullivan in Boston at bsullivan10@bloomberg.net

To contact the editor responsible for this story: Dan Stets at dstets@bloomberg.net


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