January 29, 2019 Snow Event and January 30th Snow Squall Discussion and Obs

[Stormman96]

Current temp down to 3 now. Received about 3-4 snow yesterday here in quakertown 

[JTA66]

28F at midnight, an overnight low of 16F, now up to 17F. Picked up about an inch yesterday. Curious to see today's temps before & after the front.

[Hurricane Agnes]

Bottomed out at 16 this morning (about an hour ago) and currently 18 and clear.

[The Iceman]

Ended with 0.0/trace. Got 15 minutes of white rain at the end. Can't say I was surprised though. Let's see how we fail with the next one. All the meso's have a nice squall line developing that should drop a quick coating-inch and should arrive right when I leave work. Hope it actually comes to fruition.

[LizardMafia]

Snow squall warning issued out in Central PA, don't see one of those very often.

[penndotguy]

Just talking to a friend of my Dads that work with  Pendot he was saying they are on alert for the squall was saying it could be severe 

[Hurricane Agnes]

1 hour ago, LizardMafia said:

Snow squall warning issued out in Central PA, don't see one of those very often.

The warning itself is relatively new (phase-in of it started a year ago in certain FOs, although not here)! https://www.weather.gov/media/nwr/Snow Squall_WRN_NWREAS_112117.pdf

Will be interesting to see if it holds together and is able to meet the criteria for Mt. Holly to issue one in our CWA.

[JTA66]

Temp up to 28F. The line of snow squalls looks a bit broken up atm. Hopefully it regenerates as it approaches the coastal plain. 

[Newman]

3 minutes ago, JTA66 said:

Temp up to 28F. The line of snow squalls looks a bit broken up atm. Hopefully it regenerates as it approaches the coastal plain. 

Stuck between CCX and DIX radar sites. It's a low topped, shallow snow squall that isn't picked up by the radar beams.

[Newman]

Low level lapse rates look very good

 

[Hurricane Agnes]

Just now, Newman said:

Stuck between CCX and DIX radar sites. It's a low topped, shallow snow squall that isn't picked up by the radar beams.

I was literally just looking for it myself on the radar and nada!  Makes sense.

[JTA66]

2 minutes ago, Newman said:

Stuck between CCX and DIX radar sites. It's a low topped, shallow snow squall that isn't picked up by the radar beams.

Got it...thanks! Temp now up to 29F.

[hazwoper]

1 hour ago, Hurricane Agnes said:

The warning itself is relatively new (phase-in of it started a year ago in certain FOs, although not here)! https://www.weather.gov/media/nwr/Snow Squall_WRN_NWREAS_112117.pdf

Will be interesting to see if it holds together and is able to meet the criteria for Mt. Holly to issue one in our CWA.

models show it intensifying as it approaches our area

[Hurricane Agnes]

Just now, hazwoper said:

models show it intensifying as it approaches our area

Since the temps here are relatively "warm" compared to the back side of it, I expect it would intensify as it approaches since this is happening during the heating of the day... maybe doing some downslope "warming" (relative) on its way in too.

[zenmsav6810]

10 minutes ago, Hurricane Agnes said:

Since the temps here are relatively "warm" compared to the back side of it, I expect it would intensify as it approaches since this is happening during the heating of the day... maybe doing some downslope "warming" (relative) on its way in too.

Interesting ideas here. Hopefully no snownados break out! So lovely out right now. Can't wait to see the cloud bank coming in. BCMR picked up about 5" last night near the summit made for nice skiing. It was over by 8:00 pm. Flakes were pretty big, nice dendrites. Storm was followed by intense fog for about an hour. 3" in Pottstown. Rt 100, 663 and 29 were a mess during the rush hour. I had to take Salem Bible Church Rd to get to the mountain. 

[penndotguy]

just judging by the radar it looks to be falling apart as it approaches 

[RedSky]

Up to a relative balmy 33F here. I thought Weather Worlds future radar yesterday was a big joke showing the squall as a mix here today, i thought wrong!
 

[Birds~69]

2 minutes ago, penndotguy said:

just judging by the radar it looks to be falling apart as it approaches 

Sad...

[Hurricane Agnes]

3 minutes ago, zenmsav6810 said:

Interesting ideas here. Hopefully no snownados break out! So lovely out right now. Can't wait to see the cloud bank coming in. BCMR picked up about 5" last night near the summit made for nice skiing. It was over by 8:00 pm. Flakes were pretty big, nice dendrites. Storm was followed by intense fog for about an hour. 3" in Pottstown. Rt 100, 663 and 29 were a mess during the rush hour. I had to take Salem Bible Church Rd to get to the mountain. 

It's already 29 IMBY (30 @ KPHL and 2 @ KAGC) so will see what happens!  I've driven through some nasty squalls here in Philly (although it's been awhile).

[RedSky]

35F now here on the coast of Florida, NJ

My predicted high is 31F lol

 

[Hurricane Agnes]

5 minutes ago, penndotguy said:

just judging by the radar it looks to be falling apart as it approaches 

If Newman is correct, it may be that the radar is not picking up the low-top portions.  There's a solid "something" in a line between Lancaster and Reading.

 

[penndotguy]

1 minute ago, Hurricane Agnes said:

If Newman is correct, it may be that the radar is not picking up the low-top portions.  There's a solid "something" in a line between Lancaster and Reading.

 

Nothing here yet I'm just west of the dot under Reading. winds did pick up a bit

[CoolHandMike]

If you switch between KWLX and KDIX, there does seem to be a suspicious gap SW to NE over western Chester County right now. I'm going to go take a look outside--I *should* be able to see if anything is on the horizon.

https://weather.cod.edu/satrad/nexrad/index.php?type=DIX-N0Q-1-48

[Hurricane Agnes]

4 minutes ago, penndotguy said:

Nothing here yet I'm just west of the dot under Reading. winds did pick up a bit

Here is a more recent zoom-in.

 

[CoolHandMike]

Just looks pretty hazy with a few low clouds right now. This is looking west-ish.

[Newman]

This argues that the squall line is very well alive and healthy

[Hurricane Agnes]

1 minute ago, Newman said:

This argues that the squall line is very well alive and healthy

Seems the precip is behind the front.  Harrisburg has been apparently getting it (was scanning some webcams over in that area).

[hazwoper]

22 minutes ago, penndotguy said:

Nothing here yet I'm just west of the dot under Reading. winds did pick up a bit

its coming....dont you fret

[hazwoper]

Folks in the C PA thread had the same concern when even over them radar showed nada.  then it started dumping on them, LOL

And from State College (like I said, RELAX):

[Hurricane Agnes]

Starting to show up more now -