George
@WxCustomize
Meteorology Student | A.S. Degree | NCSU ‘28 | North Carolina Piedmont-Triad
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Playing around with some QGIS mapping. It’s a chilly evening out there… according to the 00z GFS initialization
I love how people are reposting something I tweeted in 2020. Maybe this is my sign to go back on Twitter
My computer died, and I lost most of my programming files. So, I took that as an opportunity to download the updated ERA-5 data back to 1940. I think most of us along the East Coast would be satisfied to see a March 1960 repeat - because I'm a weenie.
Once again, I decided to have a little fun in Python 🐍 today & created some Dec-Jan-Feb-Mar CONUS surface temp & 500mb height anomaly probability + mean composites for El Niños since 1855 using NOAA's 20th Century Reanalysis! Unlike the previous set of composites I showed in…
I've been experimenting with creating various ERA5 climatologies recently. To make sure the results look as expected, I plotted the daily change in average 2m temperature, nicely showing the contrast between land & water, as well as the change in seasons and monsoon/ITCZ:
Decided to have a little fun in Python 🐍 today & created some Dec-Jan-Feb-Mar surface temp & 500mb height anomaly probability + mean composites for moderate-strong or east-based El Niños since 1870! To provide a more apples-apples comparison for the near-150 years worth of El…
I finally found enough time today to analyze this past Christmas's cold wave in North Carolina. Widespread sub zero lows occurred in the mountains, w/ 0s & 10s in much of the piedmont + coastal plain Mt Mitchell was the cold spot, getting down to -21°F 🥶 #ncwx #wncwx #scwx
Here is the other Blizzard of '78 across the Ohio Valley and Great Lakes.
Okay, I just downloaded the Euro Runs for December 2010. Let's see what kind of analysis I come up with. Here's a run from 6 days out.
How can we find an archived model run for 12/18/2010? We had a major SE snow storm on 12/26/2010 as everyone knows. Curious what kind of look we had 5/6 days out
On the topic of ECMWF datasets, I discovered the CERA-20C, which goes back to 1901, and seems to be more reliable than ERA20C. I plotted the March 1927 Snowstorm. @webberweather you may appreciate this
A lot of weenies don't wanna hear this, but next week's pattern doesn't support big snow on the coast Nice deep trough over the OH Valley & -NAO yes, but there's no trough near Atlantic Canada & the ridge off the West Coast is too far west >> Interior NE US & Great Lakes favored
Decided to correlation DC snowfall with 500mb heights for December and January. Interestingly, high-latitude blocking (-AO, -NAO) heavily correlates to Dec snow, while a Western US ridge (+PNA) is much more important for Jan snow. Additionally, a +EPO is favored for both months.
At the request of @webberweather, I also ran a +/- lag composite of major -EPO events (<=-2.5). Interesting regression from the Western US to the Bering Sea.
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