Sleet/Zr just started in Mt. Pleasant, DC. 30/22. Unfortunately more zr than sleet. Radar actually looks rather robust, euro may have been on to something but we shall see.
If nothing else... after somewhat insane run to run changes prior to our last few events... the euro has been remarkably consistent the past four runs with this event depicting between .38 and .44 qpf as freezing rain.
Kind of all over the place... the para is a fair amount wetter at 18z. Gfs is a little drier but includes more sleet now. RGEM is a nasty ice storm with over .3, icon is .4 and euro is .4. 3k was a lot wetter at 18z than 12z and the NAM was pretty much the same.
That 99’ storm was really brutal in Bethesda. Power out for a week and extensive tree damage even though the temp warmed up to 50 the next day. Not sure anyone has been forecasting that (3/4 inch of ice)... but an RGEM/euro combo would be a warning level Ice storm in the district with temps in the 20s.
I think even .03 of freezing rain in these temps in dc would be more impactful than any event we’ve had. I could be wrong... just my experience with ice events with cold temps.
Lol! I’d say the NAM pretty much held serve. Roughly .2 of qpf at 12z with maybe .16 at 18z. The 3k is a lot wetter though... it had no precip within 50 miles of dc in the 12z run. Goalposts prob narrowing but each model now shows between .15 and .4 of sleet/freezing rain falling with temps between 26 and 29.
RGEM would be over .2 qpf... a bit of sleet to freezing rain with temps around 26-29 in DC, while the icon went back to the idea of a half inch of ice with temps in the mid 20s at 12z.
Normally a day and a half out, I could look at that euro projection and be rather confident that it will at least be close to verification. Honestly though, lately, I might as well be looking at the 51 hour RAP.
You could do this nearly everyday for the past ten years if you are using DCA as an example. DCA is the warmest reading in the entire area at least 9/10 times. The city is usually 2-5 degrees colder (at least my weather station in mt pleasant is).
It will still accumulate on everything (particularly at night) if the temp is 31 or below even with heavy rates, it just won’t be as efficient at accumulating.
It spits out a tenth of an inch of freezing rain which would actually still be impactful with a temp in the upper 20s. The GFS is the driest solution by a long shot at this point.