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Wednesday, September 4, 2019 Convective Thread


weatherwiz
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2 minutes ago, yoda said:

STW it is... good luck

SUMMARY...Multiple corridors of intensifying thunderstorm
   development are expected this afternoon along and ahead of a cold
   front. Adequate instability along with very strong deep-layer winds
   will yield the potential for storms capable of damaging winds and
   some hail. A tornado or two cannot be ruled out mainly across
   southeast New York into southern New England. The severe risk will
   diminish from west to east across the region by early/mid-evening.

   The severe thunderstorm watch area is approximately along and 100
   statute miles east and west of a line from 30 miles north of Laconia
   NH to 35 miles east southeast of Allentown PA. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU4).
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13 minutes ago, Dr. Dews said:

SUMMARY...Multiple corridors of intensifying thunderstorm
   development are expected this afternoon along and ahead of a cold
   front. Adequate instability along with very strong deep-layer winds
   will yield the potential for storms capable of damaging winds and
   some hail. A tornado or two cannot be ruled out mainly across
   southeast New York into southern New England. The severe risk will
   diminish from west to east across the region by early/mid-evening.

   The severe thunderstorm watch area is approximately along and 100
   statute miles east and west of a line from 30 miles north of Laconia
   NH to 35 miles east southeast of Allentown PA. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU4).

:weenie: 

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 New MD out:

   SUMMARY...Threat for damaging wind gusts continues across much of
   Severe Thunderstorm Watch 634.

   DISCUSSION...Cold front continues to progress eastward across the
   Northeast and recent surface analysis places the boundary from
   north-central VT southwestward to just east of ALB to CXY (in
   southeast PA). Northern portion of the line of thunderstorms
   initially along the front has accelerated slightly ahead of it while
   also losing intensity. This loss of intensity is likely tied reduced
   lift away from the front and less buoyancy from lower surface
   temperatures. Warm layer noted around 500-600 mb on the 18Z ALB
   sounding could also be contributing to reduced updraft strength.

   Southern portion of this line of has maintained its intensity and is
   moving into a slightly more favorable thermodynamic environment.
   Expectation is for this portion of the line to continue eastward,
   posing a risk for damaging wind gusts. Additional development is
   also possible farther south along the front across far northeast PA
   and northern NJ. These storms will also pose a risk for damaging
   wind gusts. A low tornado threat remains, but surface winds have
   been veering westerly well ahead of the front, further reducing any
   tornado potential.

   ..Mosier.. 09/04/2019

 

That "pfffft" noise that you hear is the sound of our tornado chances evaporating...

 

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3 minutes ago, ct_yankee said:

That "pfffft" noise that you hear is the sound of our tornado chances evaporating...

Yeah that dry air (and cap) around 500 mb is really hurting storms from really taking off. 

Unfortunately there is just enough low level instability that you can't quite on any given storm for severe. So we continue to watch the radar. 

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