Winter Storm December 7-10, 2018 (Boston, Pittsburgh, zone, index) - Weather -Temperature, sun, sunlight, rain, hurricanes, tornadoes, climate, forecasts, humidity, heat, snow... - Page 24 - City-Data Forum

chicagogeorge · 12-09-2018, 05:16 PM

Wow, what a storm

Cambium · 12-09-2018, 05:26 PM

Quote:

Originally Posted by chicagogeorge

Wow, what a storm

Greensboro shutting down.

https://twitter.com/greensborocity/s...84969193193474

Cambium · 12-09-2018, 05:32 PM

Good video with clips.

https://twitter.com/ABCWorldNews/sta...20536874336256

chicagogeorge · 12-09-2018, 06:24 PM

https://twitter.com/NWSEastern/statu...53843602960384

Patricius Maximus · 12-09-2018, 08:11 PM

Quite the historic storm. Congratulations to all who got to be in it - in some areas some people may well tell their grandchildren about this one someday.

Quote:

Originally Posted by muslim12

Only second time in recorded history that Greensboro hit double digit December snowfall. Been 8 years here in raleigh since we saw actual December snow...

Well, when December snow made a return appearance it certainly didn't settle for half measures

.

Cambium · 12-09-2018, 08:18 PM

A little tease in the coming stats I'll have next couple days.

Richmond 11.5" of snow is the Biggest December snowstorm in 110yrs.

And In 2009 they had the 8th biggest.

121 yrs of records. Only Dec 22-23, 1908 had more (17.2").

So basically never this early! And they stayed well below normal all day not passing 33°F

Cambium · 12-09-2018, 08:31 PM

A WTF moment.

I understand having no scraper. I might even understand not having a broom around. But he does have hands to clear the snow a little.

https://twitter.com/BarleysTapPizza/...33027788095488

nei · 12-09-2018, 08:31 PM

storm total map

https://twitter.com/NWSEastern/statu...52178175270912

nei · 12-09-2018, 08:58 PM

via pivotalweather.com. Skew-T plot for North Carolina during the snowstorm. You can see it's a bit warmer aloft than the surface but stays below freezing the whole time, allowing for snow. It's saturated in the entire column of the atmosphere. Guessing the snowfall rates were high?

Cambium · 12-10-2018, 04:34 AM

Quote:

Originally Posted by nei

via pivotalweather.com. Skew-T plot for North Carolina during the snowstorm. You can see it's a bit warmer aloft than the surface but stays below freezing the whole time, allowing for snow. It's saturated in the entire column of the atmosphere. Guessing the snowfall rates were high?

You didn't say where in NC but I checked your coordinates on the Skew-T. Looks like its for location between Greensboro and Charlotte.

Believe it or not, that warm layer near freezing lowers the ratios big time. And because that's based on the GFS (NAM, RAP, or HRRR is better) chances are that level aloft touched the freezing mark

It's going to be fun checking the CoCoRaHS reports. Usually we report between 6-8am so there's many that haven't updated yet.

Luckily, Salisbury is near the Skew-T you showed.

This is a 24hr report, they had a little snow before 6am yesterday. But, 5.1" of snow yesterday melted to 1.44" of liquid. 4:1 ratios but the reason is down below... 8.1" of snow on ground this morning.

Don't forget, Top left click on "Daily Comments Report" and see what observers had to say about the days event. https://cocorahs.org/ViewData/ListDa...ipReports.aspx

In Salisbury they were getting sleet. That's why the liquid to snow ratios were low. They probably started at 12:1 and lowered to 7:1 before changing to sleet.

Don't forget, you can view the loop of temps at surface, 2500', 5000's, ect. https://www.spc.noaa.gov/sfctest/new...0mb&underlay=1#

This is 1pm at 5000'. Looks like it went a touch above freezing so the snow melted up there but cold was thick enough below that level that to keep it sleet.