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Jan 22-24 blizzard obs, tracking, nowcasting #2


Ian

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Where are you in Ashburn? I'm a block from Lost Rhino Brewery. I agree with the 18"..

...crazy!!!!

Some of the worst conditions I have ever seen in my life. No exaggeration!

Took a walk from 1-2 am. 10" then. Fell asleep at 3 am until 7:30 am. Shocked. VSBY is barely across the street. Snow rates 3" per hour, cars buried, doors snow blasted. Easily approaching 18"

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Third swipe of the snow board at 7:55 a.m. 11.1" in the last six hours. 18.9" total from three six hour measurements. Mode of over 20 measurements taken is 16" on the ground.

 

WVClimo that is some nice info on your official 6-hour measurements compared to snow depth!  I was wondering how much compaction there would be with amounts like this.  I only have depth measurements.

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6th pass on the driveway was the roughest after 5 hours of sleep. 15.5" on the snow board, but 16.5" at several places in the yard here in Fairfax Station. In a lull for much of the last hour but now starting to pick back up.

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Beautiful out there this morning. Had to give up the ghost around 2 last night after the first megaband and we've obviously had some since.

 

Took several measures both out on the deck and front yard around 8 and most were clustered around 18" but that may be high. Drifting, etc. I'd removed from my deck the residual of the other day and I measured where there was no drift. My area of DC (near Ft. Reno, elevation 380') usually does as well as anyone in the District but the other measures in the 15-16" range I've read from NW folks gives me pause.

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I just measure 10 inches in mby.  I'm kidn of bummed as I went to sleet for several hours which really compacted the snow.  Now I'm in the dreaded dry slot.  That's how to bust a forecast.   I know I'll pick up more accumulation later today but doubt I get up to 18 inches even though the HRRR would have me and everyone else setting records. Someone in Chesapeake Beach claimed to have gotten 12 inches.  I've got my doubts about that they should have had more mixing problems than I did.  DCA already beign at 14 is awesome. 

 

Yeah I had very heavy snow for about 3 hours last night, and other than that and the winds, I've been disappointed. The NAM, GFS and the short range models are all still very bullish on basically the entire area getting between 30 and 40 inches by the time it winds down. I just don't see it if it's only going to snow decently through the late afternon and even then, it seems to be a situation with the dry slot very close by and the heaviest banding back into the usual suspect areas.

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