yhbrooklyn Posted March 2, 2011 Share Posted March 2, 2011 I love looking at met winter in graph form. You can easily see the coldest (1/24) and warmest (2/18) days of the season. And here is the entire winter: Link to comment Share on other sites More sharing options...
Alpha5 Posted March 3, 2011 Share Posted March 3, 2011 Impressive data....really shows how cold temps were this winter, especially during the -NAO regime in December/January Link to comment Share on other sites More sharing options...
nzucker Posted March 3, 2011 Share Posted March 3, 2011 Impressive data....really shows how cold temps were this winter, especially during the -NAO regime in December/January Impressive streak of below average temperatures in December, beginning with the 12/14 arctic outbreak. That was a great period for cold, from 12/14 through 1/18...not much of a break. I believe December finished -4.5F at NYC, with some cities in the South nearly 8F below normal. Link to comment Share on other sites More sharing options...
yhbrooklyn Posted March 3, 2011 Author Share Posted March 3, 2011 Impressive data....really shows how cold temps were this winter, especially during the -NAO regime in December/January Yes, that's what stands out. And still only finished winter -1.9. Goes to show you how cold -2 really is. Link to comment Share on other sites More sharing options...
nzucker Posted March 3, 2011 Share Posted March 3, 2011 Yes, that's what stands out. And still only finished winter -1.9. Goes to show you how cold -2 really is. February blew it...a couple days in the 60s when it's supposed to be the middle of winter doesn't really help. At one point, it looked as if NYC would finish February below normal when the overrunning event that hit OK/KS was progged to come up the coast and bring an icy blast from the polar vortex down. If that storm had amplified into a major coastal, we would have probably finished below average since models were showing 850s dropping to -25C behind the system. In any case, the pattern finally reverted to La Niña in February, with the NAO/AO moving towards their positive state and the mean trough transitioning to the West Coast/Pacific Northwest. We had quite a run but several missed opportunities in early February will make it very difficult to catch 95-96. March looks as if it may be a mild month with a poor storm track and just a few shots of arctic air from the cold pool in Canada here and there. Link to comment Share on other sites More sharing options...
A-L-E-X Posted March 3, 2011 Share Posted March 3, 2011 Impressive streak of below average temperatures in December, beginning with the 12/14 arctic outbreak. That was a great period for cold, from 12/14 through 1/18...not much of a break. I believe December finished -4.5F at NYC, with some cities in the South nearly 8F below normal. The real streak was from 1/3 to 2/5 with mean temps in the 30s or below that entire 34 day period! Link to comment Share on other sites More sharing options...
A-L-E-X Posted March 3, 2011 Share Posted March 3, 2011 February blew it...a couple days in the 60s when it's supposed to be the middle of winter doesn't really help. At one point, it looked as if NYC would finish February below normal when the overrunning event that hit OK/KS was progged to come up the coast and bring an icy blast from the polar vortex down. If that storm had amplified into a major coastal, we would have probably finished below average since models were showing 850s dropping to -25C behind the system. In any case, the pattern finally reverted to La Niña in February, with the NAO/AO moving towards their positive state and the mean trough transitioning to the West Coast/Pacific Northwest. We had quite a run but several missed opportunities in early February will make it very difficult to catch 95-96. March looks as if it may be a mild month with a poor storm track and just a few shots of arctic air from the cold pool in Canada here and there. Heh, we might not even catch 1947-48 lol. Link to comment Share on other sites More sharing options...
uncle W Posted March 3, 2011 Share Posted March 3, 2011 This is a list of the La Nina winters since 1950 that was cold in December and January with a milder February...Average temperature for Dec thru Feb... 1962-63...30.0 1970-71...32.1 1995-96...32.3 1955-56...32.7 2010-11...32.7 1964-65...33.3 1954-55...34.0 1975-76...34.4 1955-56 has the same average winter temperature heading into March...All these analogs had at least one significant snowfall after March 1st... Link to comment Share on other sites More sharing options...
A-L-E-X Posted March 3, 2011 Share Posted March 3, 2011 This is a list of the La Nina winters since 1950 that was cold in December and January with a milder February...Average temperature for Dec thru Feb... 1962-63...30.0 1970-71...32.1 1995-96...32.3 1955-56...32.7 2010-11...32.7 1964-65...33.3 1954-55...34.0 1975-76...34.4 1955-56 has the same average winter temperature heading into March...All these analogs had at least one significant snowfall after March 1st... Wow nice catch, Unc. How many of them had accumulating snows in April? Link to comment Share on other sites More sharing options...
uncle W Posted March 3, 2011 Share Posted March 3, 2011 Wow nice catch, Unc. How many of them had accumulating snows in April? 1956...4.2" 1965...1.2" 1971...0.4" 1996...0.7" Link to comment Share on other sites More sharing options...
A-L-E-X Posted March 3, 2011 Share Posted March 3, 2011 1956...4.2" 1965...1.2" 1971...0.4" 1996...0.7" Ahhh, I didnt know that winter was not over after the March 19th KU event. That's crazy-- I know Babylon got 26" of snow in the KU event and over 30" for the month-- they may have had close to 40" of snow combined March and April on the south shore of Suffolk County. April 1996 was probably the most impressive event out of that list, 6-12 inches just east of the city. Link to comment Share on other sites More sharing options...
earthlight Posted March 3, 2011 Share Posted March 3, 2011 We've got a post up on the blog with YH's permission to use the images. Cool stuff, great winter. http://www.nymetrowx.blogspot.com/ Link to comment Share on other sites More sharing options...
earthlight Posted March 3, 2011 Share Posted March 3, 2011 By the way, your graph is wrong for Feb 18. Should be 67, says 57. Link to comment Share on other sites More sharing options...
A-L-E-X Posted March 3, 2011 Share Posted March 3, 2011 By the way, your graph is wrong for Feb 18. Should be 67, says 57. John, I think that graph is for mean temps, not highs. I was wondering about that at first too. Link to comment Share on other sites More sharing options...
A-L-E-X Posted March 3, 2011 Share Posted March 3, 2011 Wow, for about a 30 day period between Jan 6 and Feb 4, we only had one day that was more than 1 degree above normal. It was coldest compared to normal when it's supposed to be the coldest-- a huge key to retaining all that snowcover! We saw something similar along the same timeframe in 2008-09 (with much less snow of course.) Link to comment Share on other sites More sharing options...
uncle W Posted March 3, 2011 Share Posted March 3, 2011 Wow, for about a 30 day period between Jan 6 and Feb 4, we only had one day that was more than 1 degree above normal. It was coldest compared to normal when it's supposed to be the coldest-- a huge key to retaining all that snowcover! We saw something similar along the same timeframe in 2008-09 (with much less snow of course.) we averaged 28.1 for the coldest 30 day period this winter...This is how it match's up to other winters... coldest 30 day periods... since 1917. 1917-18 19.0 degrees. 1933-34 19.6 1935-36 20.4 1947-48 21.5 1976-77 21.9 1980-81 22.2 1919-20 22.4 2003-04 22.5 1993-94 23.5 1944-45 23.8 1969-70 24.0 1970-71 24.2 1934-35 24.3 1922-23 24.5 1960-61 24.6 1939-40 24.9 1967-68 25.1 1981-82 25.2 1989-90 25.3 2006-07 25.8 1962-63 25.9 2002-03 25.9 1978-79 26.0 1983-84 26.1 1977-78 26.2 1999-00 26.2 1975-76 27.1 1984-85 27.5 1955-56 27.6 1995-96 27.7 1956-57 27.8 2008-09 27.9 1964-65 28.0 1957-58 28.1 2010-11 28.1 Link to comment Share on other sites More sharing options...
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