Why the Ridge Keeps Coming Back: The Structural Shift Behind Western Heat Domes
Part 2: The leading mode of North American winter circulation has changed, and March 2026 is what the new mode produces In Part 1, I described the diabatic engine behind March 2026's record-shattering western heat dome: upstream precipitation in the Pacific Northwest released latent heat that amplified an extraordinary ridge over the interior West. That post explained the mechanism. This…





