Monsoon season is the other calendar
Mid-June through September, every county homeowner watches the southern sky. The pattern is violent and local: a microburst drops fifty-mile-an-hour straight-line winds on four blocks and leaves the rest of the street untouched; a haboob rolls a wall of dust ahead of the rain; then the downpour hits ground that can’t absorb it and sheets toward the lowest slab. Storm damage here is mostly water damage wearing a costume — the wind makes the opening, and the water does the real harm inside.
The river-corridor wildcard
Every few seasons, a Pacific hurricane breaks up off Baja and sends remnant moisture straight up the gulf into the lower Colorado corridor — days of soaking tropical rain in a region built for cloudbursts, not marathons. That’s when tile-roof underlayment cooked brittle by a decade of sun finally fails by the neighborhood, when the washes run like rivers, and when houses that never flood take water. We track those systems the way the coast tracks landfalls — because up this valley, that’s what they are.
Wind-driven rain vs. rising water — the insurance distinction that matters
Carriers treat these as different events: rain that entered through a storm-created opening is usually a homeowners claim; water that rose from the ground is a flood-policy claim. Many county storm losses are both at once. We document the entry points, the waterline, and the moisture map precisely because that distinction decides which policy pays — and vague documentation is how legitimate claims stall.