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2013 Mt. Holly CWA Convection Thread


SouthernNJ

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The latest obs in DE / Chesapeake area are looking good. 12z SPC WRF max UH really looks good for E MD ~ 22z which moves eastward into DE before diminishing. It is quite possible the urban corridor VA-MD to DE sees a few tornadoes this afternoon. It is exceptionally moist out there and we are about to see an increase in the low-mid level winds with a warm front near by....

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well, PHL is stuck with E winds, DOver basking in SE winds....... i think unless the WF pushes N somehow, its stuck between the aforementioned points.

 

In this case, it is possible theta-e advection/warm front surge could be sufficient to sustain supercells (sunshine not a big deal near the warm front). But, yeah it really hasn't budged as new areas of rain/convection helped to cool the "cool sector" even more. Watch in the next couple of hours which is when the models starting showing the advancement north.

 

It seems like the DE-MD is the main show with adjacent S PA/NJ.

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In this case, it is possible theta-e advection/warm front surge could be sufficient to sustain supercells (sunshine not a big deal near the warm front). But, yeah it really hasn't budged as new areas of rain/convection helped to cool the "cool sector" even more. Watch in the next couple of hours which is when the models starting showing the advancement north.

It seems like the DE-MD is the main show with adjacent S PA/NJ.

pshh, you should see the trolling texts im getting from tombo- "i love east winds", "heavy rains are good" hahaha. We'll see though. Best chance is still down to DC area.

Also, seeing the reflectivity going from reds to orange within the same corridor the last few hours makes me think that the WF might not be advancing that far North the rest of the day.

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post-810-137088786689.jpg

Probability of 2 or more tornadoes

Mod (60%)

Probability of 1 or more strong (F2-F5) tornadoes

Low (20%)

Wind

Probability of 10 or more severe wind events

High (80%)

Probability of 1 or more wind events > 65 knots

Low (<5%)

Hail

Probability of 10 or more severe hail events

Low (10%)

Probability of 1 or more hailstones > 2 inches

Low (<5%)

Combined Severe Hail/Wind

Probability of 6 or more combined severe hail/wind events

High (>95%)

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The degree of moisture near/south of the warm front will be enough (in combination with lift/shear) for a tornado. Our main potential is probably with this first line / round associated with a weak vort max, on the edge of an approaching LLJ. If a second area gets going behind this over VA/MD, it would come much later in the day and likely not pose a threat here for tornadoes.

 

Today is all about advecting...not getting the sun to come out (unless you are far enough south of the warm front).

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