Hurricane Agnes

Final measurements out there (compacted from sleet/snow, average 5 spots including my little board) was 5.51". The big PITA was doing the liquid equivalent. Just trying to get the tube off the mount was a nuisance. I did both what had collected in the tube and then a core sample. What was interesting (other than my back door being drifted in ) was how powdery it was - even with all the sleet and the period of freezing rain. I expected a whole layer of crunch on top with soft stuff underneath and it wasn't like that at all. I think that is because it never got above freezing here the entire event duration, including antecedent conditions (literally stayed in the 26 - 28 range during the event) and the same was the case post-storm, where it eventually bottomed out to 23 after 3 am and didn't hit freezing or above until just before 11 am. So I didn't seem to get my expected "club sandwich layers" when I did a core. In any event, the "practice" (open tube accumulation) + the tube "core" sample gave me 1.13" and 1.16" liquid equivalent respectively (needed 2.00" hot water to get each attempt melted in a reasonable time). Edit to note I used my trusty "spiked" lanternfly/stinkbug swatter as a spatula - worked great! So with the 5.51" and 1.15" (rounded) water equivalent gives me about 4.8 : 1 ratio. This makes sense with the temps and the periods of pancake/dinner-plate sized flakes initially (plus the periods of sleet and ZR) and then very fine stuff from the wrap-around. Current obs - a surprising 34 degrees with dp 28 and cloudy.

Congrats to Allentown for breaking a record (doubled the amount) for the date (12/16 )- PREVIOUS

I remember way back when Randy and crew chased and live-blogged on here (when it was still Eastern Weather) a lake-effect event up on the Tug Hill Plateau. That was a wild thread.

Was just reading about Binghamton. I'll never forget 1996 and the record 2-day 30"+ dump around my birthday. The plows eventually made 5ft - 6ft walls of snow along the sidewalks.

I know there was some concern about whether anyone would have any jackpots that actually got anywhere near the early snow maps, so considering that there was some wrap-around overnight, it will be interesting to see the final numbers and if any did get close.

People were wondering where you went!

Getting very powdery light snow this morning plus some blowing and drifting. It dropped down to 23 earlier this morning but has crept up to 24 with dp 23 and fog.

Some wild dynamics going on. Looks like the warm nose has pushed back to the west, I guess as the low approaches from the S. At one point, the rain line had moved up over 3/4 of the city.... Eventually as the low moves to the NE, the bands should pivot back to the east again. Currently back to all SN, blowing and drifting, and 26 (26.2) with dp 26 (25.7).

Sounds like it's pouring sleet here again. Hearing the loud pings on the windows. A veritable club sandwich of p-types.

And I peeped out at a light and the snow is back. Cracked the door open and could hardly budge it due to the winds. Getting a snow/sleet mix at the moment that is really blowing around. Temp is still 27 w/dp 26.

There's a band of snow back around Harrisburg but am not sure if that will warm as it moves east or what. There is a little battle going on between the "relatively" warm rain line and the "cold" ZR/sleet line that caused some convective cells to briefly fire.

Well I doubled in one storm, what I had all last season.

I'm guessing that is including sleet (it's an ASOS reading) since they would have changed over way before the rest of us in the city.

I think most of the calls for the city was 3" - 6" so it fell within that (assuming the wrap-around is minor. I think the models depicted the rain/snow line pretty well but the devil was in the sleet details (although as we got closer to the event, it was evident that there would be a good amount of sleet). I got about 5.3" of snow in IMBY before the sleetfest. Will have to see if I can core some tomorrow to approximate the sleet amounts before the ZR came (assuming it didn't completely soak through). I was going to practice getting a ratio (bought a Stratus gauge over the summer to try out).

The 8:34 pm PNS lists 5.7 at PHL - https://www.wrh.noaa.gov/total_forecast/getprod.php?new&prod=XXXPNSPHI&wfo=phi ETA - am guessing that is including IP.

I noticed the fog was back (vis. about 1/2 mile) and checked outside and am now getting ZR. Will have a crust of ice over the sleet over the snow - a real snow cone.. Temp is 27/dp 26.

There's a big hole right over Philly.

I popped open RadarScope and it is really show the incoming dry slot.

Since you posted this awhile ago, I don't know if you finally figured it out but I think by default it comes up in "Base Reflectivity" mode and if you click on the block in the upper left corner that says that, it will activate a drop-down menu where you can select other views including "Precipitation Depiction". I just have the basic version on the phone and om windoze 10 without any subs to other data services.

Based on Mt. Holly's climatology report if they get no wrap-around, it would be a couple inches short of the record for the date (other locales probably broke theirs like Allentown definitely and possibly Wilmington, depending on any other reports) -

It'll be like a cement mountain.

Snow and ice sandwich!

Looks like the blob of sleet is up to Lebanon County and ZR is cutting across Wilmington (haven't seen any of our Delaware folks check in yet).

I have a couple humidifiers and an air purifier going and I can hear the pingers over all that. It's literally pouring sleet. It has compacted my snowpack down almost an inch already. Temp creeping down again and down to 27 (27.3) with dp 27 (26.8). Looks like the r/s line is almost right along the Delaware river.