Tatamy

Picked up 0.27” with the overnight storms.  This woke me up at 2:30am.

Rotation in the atmosphere over my location this afternoon.

Marble size hail with the storm that just rolled through here.  0.27” with a 28 mph wind gust.

56 minutes ago, SnoSki14 said:

Very slow moving. It'll die out once it crosses into NJ.

So far this has been a nothingburger as it passes near my location in eastern PA.

14 minutes ago, SRRTA22 said:

latest HRRR and NAM have more widely scattered convection developing across the metro in the next 1-3 hours from the convection to the north. See what happens. Also have an outflow boundary in the area from the storms to our south so I definitely agree that the metro will see some action in the next few hours (Nyc west) 

Outflow boundaries on a local scale have been the major player in this evening’s activity out here.

Seems like you folks in the metro area are having a quiet evening convection wise.  Not here.  Cells have been back building over my community for the past hour.  Lots of CTG with this activity.  Also had a wind gust to 33 mph with one of the down bursts.  Looks to be winding down now.  0.77” in the rain guage.

Precip total out here is up to 1.84” for this event.

The line passed through here a short while ago. 0.20” in the rain bucket and the wind did not exceed 20 mph.  A few rumbles of thunder with it.  

40 minutes ago, Snowlover11 said:

whole lot of nothing, lets see what the wind brings.

Same here - .01 on the day.  I wasn’t expecting an inch of rain today however today’s precip total definitely falls into the bust column.  Radar as of now does not look too promising.  Let’s see how we do with the predicted winds tomorrow.

The severe thunderstorm at my location here in Bethlehem Twp, PA dropped marble sized hail for a few minutes about 30 minutes ago.  That line which is crossing into western NJ bears watching.  With the passage of the squall line our temperature dropped 20 degrees in a few minutes from 69 to 49.

Just now, Tatamy said:

I think this warning was issued due to strong winds as reported by spotters and/or radar indicated.  No lightning on any of my devices either.  If you you read the warning statement it does speak to high winds associated with this feature.

And just like that my Skyscan is detecting lightning.  It is the nature of these features that they can start producing lightning very quickly.

18 minutes ago, weathermedic said:

Squall line looks to be intensifying on radar as it makes it's way through western NJ. No lightning as per the radar apps.

I think this warning was issued due to strong winds as reported by spotters and/or radar indicated.  No lightning on any of my devices either.  If you you read the warning statement it does speak to high winds associated with this feature.

Squall line has just passed my location.  It’s a mover however no lightning or thunder here with it.  Wind gust to 19 mph.

2 minutes ago, bluewave said:

80° at Newark and 77° in NYC

Newark Liberty MOSUNNY   80  58  46 W31G40  

Central Park   MOSUNNY   77  59  53 MISG    

You will want to pay attention to the wind gusts today.  Many gusts here from 35-40 mph.  Highest gust is 49 mph so far.

4" new OTG.  Still steady light snow.  32F

Heavy snow 1/8 mile visibility.

4 minutes ago, mikem81 said:

The upper air (850 and 925 temps) are the same or slightly colder in the NYC area than down in Phily (where it is snow) so well see what the BL temps do once the precip starts. Temps will need to cool 3-5 degrees

Pay attention to your dew point temp.  The air temp has dropped 3F since the event began.  I have gone from 32 to 29.  The DP has leveled off at 27F.

I am now down to 1/4 mile visibility with heavy snow.  It took only 10 minutes for this to get to this rate.

Moderate snow with 1/2 mile visibility  32F.

24 minutes ago, MJO812 said:

It is going to be very close  for NYC.  Excited to see what occurs. 

If the rates for this event continue to be as heavy as what I am seeing to our west this morning then the warmer boundary layer close to the coast could be overcome more than currently believed.  I agree that this will be close for NYC.  I think that it is reasonable that places in the Bronx, Manhattan, Northern Queens, and Staten Island could see new accums with this event before all is set and done.

12z HREF

Heavy snow here in Bethlehem Twp PA.  3” total.  1/4 mile visibility.  23F

Moderate snow - Bethlehem PA - 1/2” new 21F

Light snow getting underway here 25F

21z RAP