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June 23rd Enhanced Risk


mappy

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I admit I am a bit surprised there is no MD out for us yet... should be coming soon one would think

There's essentially nothing on LWX radar. We've seen days where storms are already well under development in our area before they issue an mesoscale disco. It'll probably be a little while - then again like the others said they could just go with a watch I guess. 

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16z SPC mesoanalysis

 

-7 to -8 LI's... LL Lapse Rates are between 7.0 and 7.5 C/KM... ML Lapse Rates 6.5 to 7.5 C/KM (7.5 is in C MD/W MD)... ~2500 MLCAPE... 3000-3500 SBCAPE... 35-40 kt effective shear... 30-35 kts bulk shear...

 

17z SPC mesoabnnalysis

 

LI's -8 to -9... LL Lapse Rates are between 7.0 and 7.5 C/KM... ML Lapse Rates 6.5 to 7.5 C/KM (7.0 C/KM touches DCA, 7.5 in C MD)... 2500-3000 MLCAPE... 3000-3500 SBCAPE... 35 to 40 kts effective shear... 35 to 40 kts bulk shear... left-moving sup composite is -4... supercell composite at 4... 1.5" sig hail in N VA/C MD... 40-60 Craven SigSvr... derecho composite 6 to 8...

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Convetion in far western MD / PA / OH about to enter a much more favorable environment.  Timing looks like 5:00 - 8:00 pm for DC Metro.  Even downdraft CAPE and is looking healthy which should promote more efficient transfer of thunderstorm winds to the surface.

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17z SPC mesoabnnalysis

 

LI's -8 to -9... LL Lapse Rates are between 7.0 and 7.5 C/KM... ML Lapse Rates 6.5 to 7.5 C/KM (7.0 C/KM touches DCA, 7.5 in C MD)... 2500-3000 MLCAPE... 3000-3500 SBCAPE... 35 to 40 kts effective shear... 35 to 40 kts bulk shear... left-moving sup composite is -4... supercell composite at 4... 1.5" sig hail in N VA/C MD... 40-60 Craven SigSvr... derecho composite 6 to 8...

 

 

18z SPC mesoanalysis

 

LI's -8 to -10... LL Lapse Rates around 7.5 C/KM... ML Lapse Rates around 7.0 C/KM for DC and ~7.5 C/KM for C MD... 2500-3000 MLCAPE... 3000 to 4000 SBCAPE... 35 to 40 kts effective shear... 35 to 40 kts bulk shear... left moving sup composite is -4... supercell composite is 4... 1.5" hail markers in N VA/DC/C MD... derecho composite 6 to 8... 50-70 Craven SigSvr...

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