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2021 Mid-Atlantic Severe Weather - General Discussion


Kmlwx
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Finally some action,  and a near- by severe thunderstorm warning.

C and D Canal area gettng very heavy rains in a interesting West to East elongated radar signature, as in training cells. 

 

  

Flood Advisory
National Weather Service Mount Holly NJ
650 PM EDT Fri Jul 9 2021

DEC003-NJC015-033-100200-
/O.NEW.KPHI.FA.Y.0061.210709T2250Z-210710T0200Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Gloucester NJ-Salem NJ-
650 PM EDT Fri Jul 9 2021

The National Weather Service in Mount Holly has issued a

* Flood Advisory for...
  New Castle County in northern Delaware...
  West Central Gloucester County in southern New Jersey...
  Salem County in southern New Jersey...

* Until 1000 PM EDT.

* At 650 PM EDT, Doppler radar indicated heavy rain due to
  thunderstorms. Minor flooding is ongoing or expected to begin
  shortly across portions of the advised area. Between 1 and 2
  inches of rain can be expected.

* Some locations that will experience flooding include...
  Wilmington, Newark, Middletown, Pennsville, Carneys Point,
  Elsmere, New Castle, Penns Grove, Salem, Woodstown, Alloway, and
  Quinton.
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7 minutes ago, osfan24 said:

Yeah, been a strange pattern recently where it seems like PA and north has really been cashing in while it's just mostly hot and humid down here with isolated storms.

We've been under the ridge axis, so plenty of moisture and instability streams to our west and north but we get scraps.  Ridge will push out on Saturday.  Tomorrow probably some activity as well.

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52 minutes ago, WxUSAF said:

We've been under the ridge axis, so plenty of moisture and instability streams to our west and north but we get scraps.  Ridge will push out on Saturday.  Tomorrow probably some activity as well.

GFS looks pretty wet Saturday and Sunday afternoon. Of course, not ideal being the weekend. :axe:

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I agree with everyone that the best signals for intense storms are for DC and points south, but there are plenty of CAMs that still have 40 dbz storms north of town.   It's reflected in the 12z HREF output which shows a 90% chance between 19 and 23z  of 40 dbz within 20 km of a point  for much of the area in:

1688174721_ScreenShot2021-07-14at2_08_10PM.thumb.png.ea99779bb713855d281b4c35f550dcc0.png

    To be clear, that's a probably of a storm with 20 km of a point, so the activity could be scattered, but I'll happily take that map.

 

 

 

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