A horizon-sweep rain gauge for the next 60 minutes. You read it left to right, like a weather front rolling in toward you: the gold NOW gate is the present, the lane to its right is the coming hour. Rain is painted as a volumetric mass of falling streaks whose density and height ARE the intensity — never a bar chart, never hidden behind a tap. Start and stop are marked with gold pennants. It sits below the kWh hero and Power Now bar without stealing the stage.
The whole element is the next 60 minutes, laid left → right. The gold NOW gate anchors the present; everything to its right is the future. There is nothing to tap and nothing to expand — the forecast is the element.
(1) The START pennant marks first drops. (2) The STOP pennant marks the last. (3) The brightened wet ground stripe under the horizon shows the exact stretch it's raining — a second, always-on read of when, by position alone.
Heaviness is encoded three ways the owner can see: streak density, the height of the falling mass against the LOW / MOD / HVY rungs on the left rail, and the thickness of the wet stripe. Rain stays a neutral slate-white; gold is reserved for structure (now, start, stop). Nothing depends on hue.
Compact band height, one hairline, a dark scrim instead of a card — it reads as an instrument strip under the kWh hero, not a second hero. The big number and Power Now bar stay the dashboard's center of gravity.
time, mm, probability) becomes a vertical slice of the lane. Streak count per slice scales with mm; missing minutes between 15-min buckets interpolate at a constant rate, same as today.findStopsAt() result (first dry slice after the last wet one).