Hurricane Agnes

22.43" to date in NW Philly (although might have been a bit more due to compaction from sleet storms and FZRA).

Just went out and measured and was surprised at the "powdery" consistency of this given the temps weren't all that cold during the event. Measured 2.4" (pulled out the 1/10" ruler since the amount on the regular one was around 2 3/8th ). Currently 27 and overcast.

Bottomed out at 17 around 5 am and the dews have been in the single digits since around 3 am. Currently 21 w/dp 7 and clear.

I am in eastern Chestnut Hill and I know the far western part near Summit Ave and just before Germantown Ave. heads steeply downhill to Bells Mill Road, is above me in elevation. Seems the gradient was literally going along am almost ENE --> WSW line. You can sortof see it on the attached... Looks like it's completely done here now and it's overcast with temp 34 and significant melting still going. I guess when the deep freeze comes, it'll all become glacier.

We had snow where I was in NW Philly those few days after (probably about 6"). Then the temps started rising a few weeks later (up to or in the 60s) with rain and the flooding was epic. I remember driving to work (used to use the River Drives to go downtown where I worked) and the high water marks for the flooding along the Kelly drive were clearly visible along the length of the plowed snow pack right near the Falls Bridge. I also remember a full sized mature tree had washed down the Schuylkill during the floods and eventually got wedged horizontally near the top of one of the arches of a stone train bridge that goes over the river. That tree trunk must have stayed there almost a year before they finally removed it.

I just heard whoever is doing KYW's weekend weather report mention the same about Center City - little or nothing. I think the issue is serious melting. My previous report was it close to about 4" here (had popped out and measured 3.75" and that was about 90 minutes ago). Just checked again about 10 minutes ago with the storm close to being done and it has melted down to 3" and slabs of mashed potatoes slid off my car as well as off others. Currently 34 with tapering SN -.

I've been posting on and off in this thread from NW Philly (near Montco border). Am up near 4" where I am. Getting light but steady snow now with normal flakes. Still have not gone below freezing the entire event and it's currently. 33.

Isn't there a piece of polar vortex headed your way next week ("blue norther")?

Still getting variable rates and flake sizes. Had about an hour of the "normal" flakes but moderate/steady and now back to the pancakes. Up to 3" here now but still riding the 33 train for temps.

Had to look up where that was - up in the hinterlands of Montco!

You can see where the heaviest band has setup so far - just a few ticks N/W of the I-95 corridor (based on mPINGs). I have so far been above freezing through the whole event...

Up to 2.5" here and still have marginal temps at 33. Getting various intensities with variable sizes of flakes, from normal to pancake to dinner plate. That's gonna be some wet heavy snow!

Still have marginal temps at 33 but pancakes and dinner plates have me up to about 1.5" on the board. Streets are caving although some parts haven't succumbed yet.

LOL okay. He is really puffy! Looking for his mound!

Now getting lots of pancakes with increased rates. Temp down to 33 and now starting to stick on streets and a little bit on treated walks.

Trying to figure out what that is. Skunk? Cat? The apparent "band" across the tail doesn't seem to suggest squirrel and head looks too small to be a raccoon but...?

Dynamic cooling continuing. Down to 34 with SN now (clumped flakes) but laying down a chilled coating on the colder surfaces (mostly the cars for the moment) to form a base. Still melting on treated surfaces including streets/walks.

Dynamic cooling starting. Temp has dropped to 35 and wet flakes are flying now.

Temp had gone up to 37 but bopping between 36/37 and currently light drizzle.

Well didn't quite expect the temps to stay up this "high" overnight but it's currently 36 here and overcast. Precip seems to be closing in. Mt. Holly downgraded to 3" - 6" due to the track shift. Current snow map this morning -

Looks like it's done, sky is clearing, and sun is trying to come out. Temp is up to 39.

Now raining. Had 0.2" of pancake flake coating on the cold surfaces just as the rain was starting. Temp 34.

Was surprised the temps rose overnight and shot up to 37 just after 6 am and now it's SN with wet flakes (and they're sticking on cold surfaces) and temp is back down to 34.

I think a number or reports also come from members of CoCoRaHS - https://www.cocorahs.org/ They have a series of "how-to" videos for measuring various types of precipitation including snow, that follows the standard protocols - I expect that the more serious dedicated ones will then go on and attend the NWS Spotter training course (when available).

You are one of the few who try to "keep it real" here.