Pacific Northwest storm season is less about any single dramatic storm and more about attrition: saturated ground, back-to-back wind events, and month after month of rain finding every weakness in a roof or drainage system. The homes that come through clean are the ones that fixed the weaknesses in September.
Here's the prep list ordered by what actually causes the losses we respond to.
Why do trees cause the worst storm losses here?
Because PNW windstorms arrive when the ground is saturated — and saturated soil lets healthy-looking conifers uproot whole. Add height, and trees are the region's heaviest storm projectile.
The prep is an honest look at what can reach the house: deadwood and hanging limbs removed, weight over roofs reduced, and any tree showing lean, root-plate lift, or die-back assessed by a certified arborist before the wet season. If a tree wins anyway, our storm-strike playbook covers the night it happens.
What does the roof and gutter check involve?
One dry September weekend:
- Roof scan (binoculars are fine): lifted or missing shingles, damaged flashing at chimneys and valleys, exposed fasteners
- Gutters cleared and re-checked after the first leaf drop — overflowing gutters deliver roof water to the foundation line
- Downspouts discharging well away from the foundation, with extensions where they don't
- Attic check on a rainy day: any staining or daylight at penetrations means the leak already exists
- Skylights and vent boots — the small penetrations that start the quiet ceiling stains
How do I keep ground water out of the house?
The wet-season water table does the slow damage: grade sloping toward the foundation, window wells that fill, and crawl spaces that pond every winter. Walk the property during a hard rain and watch where water actually goes — it's the cheapest drainage survey available.
Sump pumps get tested BEFORE the season (lift the float, hear it run, consider a battery backup — outages and heavy rain arrive together here). Recurring crawl space water is worth solving properly; our crawl space guide covers what chronic moisture does under a PNW house.
What's the power-outage plan?
Regional windstorms take power out for days in a bad year. The home-protection angles: sump pumps stop (battery backup or a plan), heat stops (freeze risk to pipes in a cold snap — see the frozen-pipes guide), and generators used wrong become their own emergency. Run generators outside only, far from openings; carbon monoxide is a killer every storm season.
If an outage coincides with a freeze, drip vulnerable faucets and open plumbing-wall cabinets until heat returns.
What should be ready if the storm wins anyway?
Know your shutoffs (water main, gas, electrical panel), have your policy number and photos of the house pre-storm (a ten-minute room-by-room video is superb claim documentation), and keep our number where the household can find it: 800-769-1553, answered live 24/7.
Summit's storm response covers emergency board-up, roof tarping, tree-strike coordination, and water mitigation — with on site response within 2 hours for active emergencies in our Oregon and SW Washington service area, every day of the season.
Questions we hear about this
When is PNW storm season?
The wind-and-rain pattern generally runs October through March, with the strongest windstorms typically in fall and early winter. Prep in September beats prep in November.
Is my neighbor's dangerous tree my problem?
Document your concern to the neighbor in writing (photos, an arborist note if you have one) — that record matters if the tree later falls, since liability often turns on whether they knew. Your own policy still responds first if it hits your house.
Are windstorm and rain damage covered by homeowners insurance?
Wind damage and the sudden intrusion it causes are commonly covered; long-term seepage and maintenance-related leaks generally aren't, and surface flooding needs separate flood coverage. The sudden-vs-gradual line is why September maintenance protects the policy as much as the house.
What's actually worth doing TODAY if a storm is inbound?
Secure loose outdoor items (they become projectiles), clear gutter downspouts, charge devices, locate flashlights, park away from suspect trees, and know your shutoffs. Skip ladder work with weather already moving in.
Next step
You understand the problem — now weigh your options.
Side-by-side comparisons show where DIY genuinely works, what the methods differ on, and how restoration companies actually vary.