Jump to content
  • Member Statistics

    17,584
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

SE PA/Mt. Holly severe threats..


NaoPos

Recommended Posts

like storm spotter said, it will be interesting when that cold front and outflow boundry collide. You can see once the outflow boundry passes storms are firing up in southern jersey. You can also see some cells starting to pop out in york county with the cold front. The pwats in the area are very moist in the 1.5-1.9 range

pwtr.gif?1340393869362

Link to comment
Share on other sites

  • Replies 1.1k
  • Created
  • Last Reply

I bottomed out at 82.2 here and have only rebounded half a degree so far. Whatever forms when those outflow boundaries meet (and I'm pretty sure something will form) will probably not be surface-based unless near-surface temps rise a few degrees again post outflow. That will probably reduce the hail risk but increase the wind threat, right?

Link to comment
Share on other sites

I bottomed out at 82.2 here and have only rebounded half a degree so far. Whatever forms when those outflow boundaries meet (and I'm pretty sure something will form) will probably not be surface-based unless near-surface temps rise a few degrees again post outflow. That will probably reduce the hail risk but increase the wind threat, right?

You think these two boundries will produce some good storms?

Link to comment
Share on other sites

You think these two boundries will produce some good storms?

It'll produce something. You've got easterly winds form the NJ outflow hitting westerly winds for the NE PA outflow. That's significant surface convergence. If you're getting storms to pop on each boundary independently, then imagine what will happen when you double the amount of lift. The question is, however, is the (presumed) surface-based inversion over SE PA and NJ going to allow storms to build? Theoretically yes, but they'll be somewhat elevated.

As an aside, I really am looking for people with meso knowledge to help me out here. Suppose we do get a storm to fire when the boundaries meet, what happens to the boundaries? Do they keep going? Or, does a new storm form a new boundary and it will just move in a circle outward?

Link to comment
Share on other sites

I have seen cold fronts and coastal boundaries collide around here but never 2 boundaries could be quite a sight for anyone who lives or is where they meet. If storms were to rapidly ignite updraft winds would be intense. As tombo said the pwat values are high and personally I think we could see the front briefly stall when things meet up posing a good flash flood threat.

Link to comment
Share on other sites

It will be very interesting to see what happens along an axis from Collegeville to Souderton when this new storm near PTW hits the northwestward-moving outflow boundary. That guy might be just isolated enough from the stuff over the LV to go crazy for at least a little while.

Link to comment
Share on other sites

For my SE PA folks, cumulus field growing rapidly... Have this growing above my backyard.

Yeah, in the last 10 minutes a line of clouds has formed JUST to my north (close to getting overhead) and a line of clouds has appeared to the east and southeast. Temp has dropped from 90.5 to 85.8, wind has picked up a bit from the ESE

Link to comment
Share on other sites

3 outflow boundries now one coming up N/W out of the cells in Delaware heading towards SE PA. This could get very interesting in a hurry.

Super tornado storm!

Heads up Philly. Cell building up overhead of me. Not showing on radar just yet, but it should in time.

Link to comment
Share on other sites

It will be very interesting to see what happens along an axis from Collegeville to Souderton when this new storm near PTW hits the northwestward-moving outflow boundary. That guy might be just isolated enough from the stuff over the LV to go crazy for at least a little while.

Orrrrr not...

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...