Lettucing Gutted
-
Posts
1,109 -
Joined
-
Last visited
Content Type
Forums
Blogs
Gallery
Events
Learn About Weather and Meteorology
Community guides
Posts posted by Lettucing Gutted
-
-
Oops....can anyone spot Rob McElwee's mistake?
Rob labeled London as Enfield.
-
I am surprised that October 1978-April 1979 had more air frosts than October 2012-April 2013 since that period started with one of the warmest Autumns on record.
-
-
If May finishes below 11.2C, with 5 months January-May 2013 will join January-May 1986, July-November 1988 and July-November 1993 for the longest consecutive string of months below the 1961-1990 CET average since December 1978-June 1979.
-
still can't categorically rule out sub 10C for May.
That would bring every month from October through May below 10C for the first time since October 1974-May 1975. Interestingly that period was interspersed by one of the warmest winters on record and ended with one of the warmest summers on record. However for a sub 10C October-May period interspersed with a cool/cold winter we have to go all the way back to 1940/1941.
-
it would be great to see anything over 12.5C, but i'm expecting something closer to 10C, with a cooler theme from mid-may onwards (i hope im wrong though)
It has to be said that May has not had a particularly cold second half to the month since at least 1996 so it will be remarkable if we do get one.
-
When was the last time that we had two consecutive Aprils that were at least 0.5C below the average? It think it was 1977 and 1978.
Ha you beat me to it! I was just thinking the same thing.
-
Stage 4 Global Warming here we come!
-
-
Looking at Roger's stats its interesting that the warmest ever and coldest ever daily means in May are less than 4C warmer than April's despite the greater increase in average monthly CET.
-
That sub 5C daily CET predicted for the 27th looks interesting. It could be the coolest end to April since at least 1989.7.6C to the 26th (6.9)
7.4C to the 27th (4.4)
-
April 1984 had a very cold first week but finished above average. It won't surprise me if this April could go the same way.The CET anomaly for April, up to the 8th, is -3.0c. Is there any possibility of it ending up as a positive anomaly?
I only ask because January, February and March anomalies were negative and it would surely be impressive to have April end up negative as well.
Thank you in advance.
-
My forgettable years are 1999, 2000, 2002, 2005 and 2011.
-
The highest daily CET this March is less than 7C (albeit only just). This is very rare even in the winter months but this is just incredible for March!Highest daily CET so far this month is 6.9C on the 8th. The only March since 1772 I can find which betters this is 1837, which had a highest daily CET of 5.0C.
-
lol. Less than 5 years ago many people here including myself didn't even think we will see sub 3C winter months ever again.I never thought I would see a sub 3c March in my lifetime! I really hope it happens. Looking at the models it is really possible now!
-
Again I think we are seeing the effects of reduced Solar Radiation and Arctic Ice Loss producing opposing effects on the Mid-High Latitude Continents. On the one hand the reduction of Solar Radiation has caused stronger Upper Level Troughs over the Continents in winter which generate strong surface highs as the thermodynamic byproduct of deep Cold Air Advection and radiative cooling which leads to mass convergence in the deep cold pools. While on the other hand the Arctic Ice Loss has led to stronger and more amplified Upper Level Ridges over the Continents in summer which again generate strong surface highs but this time only as a dynamic byproduct of mass convergence in the deep warm pools. The same surface high cannot cause both extreme cold and heat without an Upper Level pattern change.The other thing to think on is where the cold anoms across the N.Hemisphere came from this winter? Were they Arctic Exports or were they home grown H.P. deep colds?
Where has this cold blast here come from? Inner Continental cold or Arctic plunge?
The past years, whilst we flooded, saw anomalous H.P. systems in the inner continent driving heatwave and drought synoptics.
-
Yes. This is pretty much my thinking. I believe the cooling effects from lower Solar Radiation via the La Nina base state and -PDO has favored our "chilly and rather wet" synoptics but the background warming via the Arctic Ice Loss has diluted our cold pool and Polar Vortex meaning that our cold airmasses are not as cold as they use to be, which results in our coldest summer and winter months being warmer than if the same months occurred with a cooler Arctic. Hence July 2011 is the new and warmer July 1888 and January 2010 is the new and warmer January 1963. This conflict of forcings also means we see swings from cool/cold winters to mild/hot springs then back to near average/or even cool summers but then back to mild/hot autumns all in the same year as we saw in 2009 and 2011.The swing in winter and summer weather from 2009 and 2007 respectively is pretty remarkable, but I find the overall warmth from 1988-2007 (for winters) and the 90's and early-mid 00's (for summers) to be just as remarkable, and that came to an end fairly rapidly. We've yet to see a notably cool summer month according to the CET - in the bottom 10% of months, i.e. to be expected every 10 years for each month - despite plenty of near/below average ones, Perhaps the lack of summer sea ice is making that difficult, even if synoptics mean our months are still slightly chilly and rather wet?
-
That's amazing after only one year since one of the warmest ever such periods in September 2011 through March 2012. Where's Tamara G, Snowmaiden and Stratos Ferric? They should see this.Coldest September to March period since 1986 looking almost certain.
If we can go sub 3 this month, we'll make the top 15 coldest September to March periods since 1900, and top 5 since 1950.
-
October 2003 because I loved the crisp, cool days and frosty mornings!
January 2010 because of the great powder snow and very frosty weather!
December 2010 everyone knows why
July 2011 because of the cool fresh nights and classic sunshine and showers days!
March 2013 because of the variety of cold and sunny days, sunshine and showers days, and cold and snowy days!
Honorable mentions also goto February 1991, June 1991, July 1993, August 1993, September 1993, October 1993, November 1993, March 1995, December 1995, May 1996, November 1996, June 1997, October 1997, November 2005, October 2008 and November 2010.
-
-
Also could this be coldest second half of March for the CET since at least 1962?Might be worth looking at the coldest last week of March on record for the CET.
Without looking at the figures, could be the coldest end March since at least 1901
-
-
-
I think 2013 will be another trying year for snow and cold lovers. I have not even seen a flake of snow since December 2010...
June 2013 CET Forecasts (2012-13 CET Competition)
in Spring Weather Discussion
Posted
Yeah Stratosferric was surprised if we had seen only one let alone six!