TheClimateChanger

No, I just looked it up. That was a 2-day event. The highest calendar day tally was 11.3" on the 23rd, but the 2-day total was 17.8 inches. 5,830 days ago (adding in today) was December 19, 2009, when an astounding 15.0" fell at DC in a single calendar day.

Very impressive to see so many 12"+ days at Washington, DC. Dayton, Ohio, even a bit further northward, has only ever had one such day in all of recorded history (January 25, 1978). So their streak list looks like one seemingly endless streak following by a second seemingly endless streak.

Let's hope the MJO loses its MOJO as we head into deep winter, and dumps all of its load in December a la 1989-1990.

Just under 5” here.

Very 2020 Covid-year like with the fast start to December. Not saying to expect as much as fell on December 1, 2020, but certainly a positive development.

Thank you

Where can this data be accessed?

Officially, on the board at that airport:

While some like to pretend nothing happened before 1979, never forget that the Arctic sea ice was once FAR, FAR more prolific, encircling Iceland year-round in colder years.

New daily record low sea ice extent:

How's the weather looking in Ann Arbor on Saturday? Hearing rumors of snow for The Game?

Storm of the century raging 75 years ago today, with winds gusting up to 100 mph in New York.

Meteorological winter less than 1 week away!

Interesting. At least at looks to be moving through at a pretty good clip, so might just be a temporary excursion in Phase 8.

Could be a case of delayed, but not denied, as JB often says. I wouldn't throw in the towel just yet. Suspect we'll see some more SE ridge mischief as we head into the month of December.

Thanks for the update, Don. This looks similar to the wintertime pattern I got when I ran the warmest CONUS Novembers forward, with cold in the Upper Midwest and Pacific Northwest. Warm south and east, with a stout SE Ridge. Hoping the ridge is underestimated a bit and milder air is able to infiltrate the Great Lakes region as well as we head into mid December.

Yes, it should break eventually. Not sure about cycles though... I think humans have a tendency to see/hallucinate cycles from random variation. This one might be done, however. I suspect that February 2010 storm may have been our last best chance of breaking this one; however, despite over 20" of snow, it was split fairly evenly over two days, keeping the calendar day total under one foot. Definitely can see each period getting longer... records began in 1880, first streak ends in 1884, then 1890, then 1901, then 1902, then 1913, then a long break ending in 1942, then 1950, then 1960, then 1966, another long break ending in 1993 (Storm of the Century) and none thereafter. If it is the last calendar day with one foot of snow in Pittsburgh history, fitting for it to be the March 1993 Superstorm.

The default setting is no missing days, so it treats any missing date as ending the streak. You have to allow some number of missing days to avoid that.

Incredible stuff, with NHEM anomalies pushing up towards 2C above the 1981-2010 mean as we head towards the end of the month. This has been one heck of a hemispheric heat wave over the last month or so.