With an ongoing storm, LightningCast version one featured a “lobe” of higher probabilities extending to the south/southeast. Version 2 didn’t have as pronounced of a “lobe” at the same time (Figure 1). Later on, GLM did pick up on flashes extending down to the south/southeast (Figure 2). To me, the signal for the lightning potential was clearer in the version 1 of lightning cast.

Figure 1. Conus Day Cloud distinction, GLM Flash Extent Density, NLDN CG Flashes, ENTLN Cloud Flashes, Lightning cast V1 (left contours), and lightning cast V2 (right/contours) at 1901z.

Figure 2. Conus Day Cloud distinction, GLM Flash Extent Density, NLDN CG Flashes, ENTLN Cloud Flashes, Lightning cast V1 (left contours), and lightning cast V2 (right/contours) at 1911z.

-wxboi