SomeguyfromTakomaPark

AI is 0.4 QPF by 12z and then 0.8 by 18z in DC. Changeover in between, implies about 6-10 inches in DC with ratios. Kinda the lower end of what guidance has been showing but acceptable nonetheless.

Most of our area is 0.8-1.0 QPF before a change on crazy uncle ukie so pick your ratio! Could be a foot with decent ratios IMO.

This is a QPF bomb so it is possible we get a foot of snow AND a ton of sleet. If we change over quicker maybe 6-8 inches and then sleet. Nothing is showing less than 6 inches of snow before a changeover. The later the changeover, the more we can pile up.

Pretty good agreement between GFS op and Euro op for 10 days out!

Agree, nothing is showing less than 0.5 QPF before a change over and ratios should be decent or better.

You're in a good spot for this one. I hope you get 18 inches. I'll be happy with my 6-10+ plus ice.

It's basically 8-10 for everyone and then a bunch of sleet and freezing rain.

AIGFS has the primary in WV vs. legacy GFS Georgia/Alabama border. What's 800 miles between friends lol?

CMC appears to nod to the GFS with a slightly weaker primary and the mix line not making it as far north....still mixes for all of us though.

GFS is a later changeover and a change back to snow. Weaker and further south primary low. At 84 hours Euro has 1002 in TN and GFS has 1006 on the Georgia/Alabama border.

as depicted here this would be heavy sleet/frz rain, this would really do a number on the roads to finish off the storm. As others have alluded to would be really nice to trend this whole coastal south 50-100 miles and have this be powder.

You're gonna drive clear across our subforum during the peak of this storm? Driving in this area with 1 to 2 inch per hour snow rates is taking your life in your hands lol. I don't trust anyone around here in snow to drive safely.

It was discussed a few pages ago.

Too early for this I know and the mesos will do better but the soundings for DCA on the Euro look like heavily rimed snow to me for a lot of Sunday when we're under pink, only later on Sunday is it a clear ice sounding.

Jeez, these are gaudy. Is this an artifact of questionable precip algorithm or does it think that much snow for real?