An impressive supercell took shape in Fauquier county, Virginia earlier this evening. This supercell tracked east towards D.C. then split around the city. The right mover maintained a large hail core and even had a large TBSS. The left mover took a sharp turn to the left and appeared to weaken but the ProbSevere prompted me to reissue a warning for the left moving cell. On the next radar scan, ProbSevere peaked back up as the cell strengthened. Both the left and right movers maintained strength and near 100% ProbSevere Probabilities for at least 1.5 more hours.
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| Earlier in the storm evolution... (ProbSevere overlaid on top left panel with MRMS Composite Reflectivity, MRMS MESH on top right, MRMS Reflectivity at -20C on bottom left, MRMS Mid-level rotation track on bottom right) |
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| A little bit later... |
There was also significant lightning jumps shown by the GOES-R Lightning Jump Detection Algorithm. The max lightning jump was 8.0 Sigma near the time that the supercell split into right and left moving cells.
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| GOES-R Lightning Jump Detection Algorithm overlaid with KLWX Radar Reflectivity. |
~Lilly Miller~
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