  Ubiquitous, yet elusive to a complete understanding: Tiny, warm clouds with
faint visual signatures play a critical role in Earth's energy balance. These
"twilight clouds", as they are sometimes called, form under weak updraft
conditions. Their constituent particles exist in a precarious state, teetering
between hazy wisps and activated droplets. This delicate thermodynamic balance
creates a limited reservoir of supersaturation, which activated droplets
readily consume. Our research presents a novel approach, solving coupled
equations for particle growth (K\"ohler's equation) and supersaturation change.
This reveals previously unconsidered activation states for these clouds.
Additionally, the analysis predicts conditions where particles can exhibit
self-sustained oscillations between haze and activated droplet states.
