Tatamy

Just had a blinding snow squall come through Bethlehem which has put down a coating.

Just had a blinding snow squall come through Bethlehem which has put down a coating. Not sure how far south it gets but it means business. Temperature has dropped to 31*.

I hate to be the one to tell you this but there is going to be a 65 mph SW jet at 850 mb at hour 78 on the 18z NAM. That jet is not going to be bringing in colder air either.

Snow Squall warning issued for Monroe Cty. PA. This is adjacent to Sussex Cty. NJ.

The batch in question left a 1/2” coating on the ground as it passed my location. Its radar presentation speaks for itself.

Snowing down at Ocean Beach on Fire Island as seen on webcam.

Snow is now overspreading the Lehigh Valley in eastern PA. I am watching a white shroud move towards me as I type this. 39*

From the ground obs that I am seeing it looks like the 15 dbz echoes represent the leading edge of the snow reaching the ground. That puts it not far west of Allentown and near the western Philly suburbs.

Snowing in the Harrisburg PA area and coming down hard just SW of there.

Based upon surface obs that I am seeing most of the 10 and 15 dbz echoes in central PA are Virga and are not reaching the ground. Snow is currently reaching the ground as far north as Shippensburg PA which is well SW of Harrisburg.

Nice unexpected event in progress out here in eastern PA and parts of central and northern NJ. Steady light snow here with all surfaces covered. 29*

More than mood flakes out here. Moderate snow with the ground now coated. 30*

Now having steady light snow.

Flurries in the air here. 33*

My Holly issues Snow Squall Warning for north central NJ

This is only putting down a quarter to a half inch at the most.

Now it’s lightening up here. Looks like a quick hitter.

Same here.

I have 0.2 mile right now in a snow squall.

Agreed - I saw only 3” out here from Boxing Day.

Best part was how it moved under the radar while crossing central Pennsylvania and many posters thought it had dissipated. That really was crazy.

Did you get icing?

In January of ‘78 the temperature hovered around 28 with a low level flow coming from the north. This drained cold air down the Hudson Valley from Upstate NY. Rainfall rates were quite heavy resulting in tremendous icing on the north shore.

Ant - that depends on how you define a bust. It’s true that there was no snow in the region but anyone who followed the models knew that this was not likely to produce much if any snow anyways. We all know that with this type of pattern the mid levels tend to torch fairly quickly and this does not appear to have been any different. Where it overperformed was the strength of the low level cold air advection along the coast. Freezing rain was reported at the NWS reporting stations on LI during much of the night. This included along many parts of the south shore especially in Suffolk. I have a station out on Fire Island and the wind direction sensor was stuck between 2am and 6 am. If I am correct then that means that rain was freezing on some surfaces even out there during that time period. Temperatures during that period were at or near freezing.

Plenty of icing out here. Trees are laying on power lines in many areas due to the ice. Strange thing in my local area the roads have not been affected. Icing events are fairly common here in any case and this one falls within the range of other recent events. Accretion here looks to be about 0.15”. Temperature is at 32. Local schools are open. Districts in some rural areas have delayed openings or are closed.