Firekeeper

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Budget$2.5M

Planned work$0

Brush

Current burn unitnone

Season

Season resources2 crews · 3 engines · 1 dozer · no air

Paint on the map. Thinning needs gentle ground near a road; prescribed fire goes anywhere but only burns on days inside the prescription (about 4–8 a year), and crews manage about 60 ha a day, so units beyond roughly 300 ha carry over to later years.

Most homes ignite from embers landing on roofs and vents, not from the flame front. Hardening cuts ember ignition to a quarter; defensible space cuts direct flame ignition to a third. (Cohen 2000; Syphard et al. 2014)

Managed natural fire (backcountry)

Lightning fires more than 2 km from homes can be monitored instead of attacked when danger is High or lower, the local fire potential is calm, no wind event is forecast and it is before September. They treat ground that no budget could reach. (North et al. 2015)

Attack other ignitions automatically (no prompt)

Prescription for burning

20-ft wind 2–12 mi/h · RH 22–55% · ≤ 85°F · 1-h moisture 7–14% · 10-h 8–16% · 1000-h ≥ 12% · no wildfire active · air-district approval on about half of qualifying days, fewer when trust is low.

$2,000 per cell · slope ≤ 45% · built at the dozer's rate

The first year's report appears after the season.

Field notes appear when the simulation produces something worth explaining.