The Weather: Cocktail Chatter for two or three parties here . . . .

good post by one of the bloggers on Weather Underground . . . 

Posted by: JeffMasters, 3:26 PM GMT on March 12, 2010
The U.S. just experienced its coldest winter in 25 years, according to the National Climatic Data Center. The winter period December – February was the 18th coldest winter in the contiguous U.S. over the past 115 years, and the coldest since 1984 – 1985. It was also a wet winter, ranking 19th wettest. The states experiencing the coldest winters, relative to average, were Texas and Louisiana, which had their 5th coldest winters on record. Mississippi, Georgia, Alabama, Oklahoma, Arkansas, Florida, and South Carolina also had a top-ten coldest winter. The only state much above average was Maine, which had its 3rd warmest winter. As I discussed earlier this week, this winter’s cold weather over the U.S. is largely due to the Arctic Oscillation/North Atlantic Oscillation, which assumed its most extreme negative configuration since record keeping began in 1950. El Niño helped keep things cool from Texas to the Southeastern U.S., as well.

Figure 1. Winter temperatures for the winter of 2009 – 2010. Image credit: National Climatic Data Center.

A cold February in the U.S.
February temperatures were 2.2°F below average across the contiguous U.S., making it the 29th coldest February in the 115-year record. For the second month in a row, Florida was the coldest state, relative to average. Florida had its 4th coldest February on record. Seven other states had February temperatures between 5th and 8th coldest on record: Louisiana, Texas, Alabama, Mississippi, Arkansas, Georgia, and South Carolina. Maine had its 3rd warmest February, New Hampshire its 5th, and Washington its 6th. Precipitation across the U.S. was near average in February.

Warmest and driest winter on record in Canada
Canada had its warmest winter on record, 4.0°C (7.2°F) above average, according to Environment Canada. The previous record was 3.9°C above average, set in 2005-2006. Canada also experienced its driest winter on record this year, with precipitation 22.0% below normal. The previous driest winter was 1977-1978 (20.1% below normal). Canadian weather records go back 63 years, to 1948. David Phillips, a senior climatologist with Environment Canada, warned of potential “horrific” water shortages, insect infestations, and wildfires this summer due to the warm, dry winter. Phillips blamed the warm winter weather on El Niño and the severe loss of arctic sea ice last fall. The winter season in Canada has warmed, on average, by 2.5°C (4.5°F) over the past 63 years.

Figure 2. Departure of temperature from average in Canada for the winter of 2009 – 2010. Image credit: Environment Canada.

Bruce Potter
1818 Woods Road
Annapolis, MD 21401

home landline: 410-280-6254; home fax: same
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“Ignoranti quem portem petat, nullus suus ventas est”
“If one does not know to which port one is sailing… wind is favorable” 
– Seneca the Younger (3BC-65AD) 

About Bruce

Work for sustainable development of small islands and the Chesapeake Bay; ex-Peace Corps (Volunteer and staff) in LA & Caribbean; cruised Caribbean on S/Y Meander for three years; like small tropical islands, French canals, Umbria, Tasmania, and NZ. Married 52 years to the late Kincey Burdett Potter (see President of the now-sunsetting Island Resources Foundation.
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