Posted on 05/05/2003 8:53:25 PM PDT by Ernest_at_the_Beach
HIGH LATITUDE BLOCKING AND RECORD SNOWCOVER A KEY TO THIS WINTER
Winter in Big Cities of the East Ranked Among the Coldest Since 1950
Written March 10, 2003
by Joe D'Aleo
Chief WSI/INTELLICAST Meteorologist
In our winter outlook in the fall we showed why the oceans were in a mode, which favored enhanced high latitude blocking, which would make this El Nino colder than the ones we were used to in recent decades.
The degree of high latitude blocking is measured by two climate indices, the North Atlantic and Arctic Oscillations. In recent stories, we showed how the negative mode of both modes favored colder and often snowier than normal conditions in the eastern United States and Europe, even in El Nino winters. The indices were at or near the most negative values observed since 1950 especially during the early winter from October to December.
October to December Arctic Oscillation values were the most negative since 1950. This high latitude blocking helped generate large polar and arctic air masses that helped build deep snowcover and make the winter very cold for many areas in the hemisphere. |
October to February 2002/03 average snowcover for the Northern Hemisphere was at the highest level in the data set eclipsing the previous record set in the winter of 1976/77. From CPC: ftp://ftp.ncep.noaa.gov/pub/cpc/wd52dg/snow/snw_cvr_area/NH_AREA |
BOSTON, MASSACHUSETTS
|
Year
|
Average Temperature
|
1976/77
|
35.42
|
2002/03
|
35.72
|
CENTRAL PARK, NEW YORK
|
Year
|
Average Temperature
|
1976/77
|
37.55
|
1967/68
|
38.25
|
1977/78
|
39.35
|
2002/03
|
39.70
|
ROCHESTER, NEW YORK
|
Year
|
Average Temperature
|
1976/77
|
29.48
|
1993/94
|
30.38
|
1962/63
|
30.38
|
1981/82
|
31
|
1978/79
|
31.44
|
1969/70
|
31.56
|
2002/03
|
31.56
|
BALTIMORE, MARYLAND
|
Year
|
Average Temperature
|
1976/77
|
37.04
|
1962/63
|
37.16
|
2002/03
|
38.63
|
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Average Northern Hemisphere Snowcover from October to March. This year, the snowcover was the most extensive in the entire period of record (since 1973). It beat out the three very cold years in the late 1970s. This data is compiled by the Climate Prediction Center and is available in table form from: ftp://ftp.ncep.noaa.gov/pub/cpc/wd52dg/snow/snw_cvr_area/NH_AREA. |
very true. everyone will die. and then there is a judgement. get ready.
Oh, don't worry, it'll be back sometime in August, when the temperature in New York City actually tops 90 degrees on two consecutive days. And of course it will all be George Bush's fault.
The next Ice Age is upon us. Pack up and head south!
Seriously though, we are about due again for an ice age. they tend to come on rather quickly, especially in geological terms, but perhaps even in human terms.
Speaking of south though, when I left my office about 9:30 PM or so, it was 83 degrees F outside, and the humidity was 72% (felt higher) . Not sure what the high today was...but I'll check..wait one.... 91 deg (and the RH was 55 %. At 11 PM, and currently, it was/is 81 deg, 88% RH with fog. It feels like 89 degrees (RealFeel) at midnight! The first week of May! And my A/C is running! Dewpoint is rising as the temperature falls, so by morning, my car, which I just washed!, will be covered in a dried crud from the Mexican smoke being trapped in the dew, and then dried by the morning sun. Grr!
I don't care if is San Antonio! So much for global cooling too. :)
There is a novel, Fallen Angels, by Larry Niven, Jerry Pournelle and Michael Flynnthat takes as it's premise that we were overdue for an ice age, and industrial activity postponed it. Then when the econazi's got all the "greenhouse gases" and "ozone depleting" substances reduced, the ice age kicked in, with a vengance! Of course their response is "only one earth" and "conserve", resulting in yet faster growth of the polar ice caps.
Why is there Mexican smoke there?
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