Wildfire risk · ZIP 99503
Wildfire risk in Anchorage (Spenard), AK
ZIP 99503 (Alaska) — wildfire risk summary sourced from USDA Forest Service. Refreshed on the cadence of the primary regulator with every claim cited to the source record.
What lands here
Pages translate the numeric hazard score into plain English, show the exposure type (direct flame contact vs. ember), and link to at-home mitigation resources.
Source & refresh
USDA Forest Service. Refreshed annual (usfs update). Stale data is flagged, never silently served. Primary source →
Limitations specific to this source
Community-level only. The 5-step scale reflects the hazard of the landscape, not property-specific factors like defensible space or construction materials.
Alaska context
Permafrost, wildfire, and remote drinking-water systems
Alaska's federated data carries unusual constraints: many parcels sit on permafrost where ground temperatures shape foundation risk; FEMA NFHL coverage is incomplete outside major boroughs; EPA SDWIS systems can be unincorporated or village-operated. Wildfire risk has accelerated 2020-2025 in the boreal interior.
See Alaska state page for the full state-level rollup across all 12 dimensions.
Read more on wildfire risk
Editorial deep-dives explaining the source data, its limits, and how to read it.
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EPA AQI categories explained — what 0–50 Good through 301–500 Hazardous mean
Plain-English guide to the six EPA Air Quality Index categories: 0–50 Good, 51–100 Moderate, 101–150 Unhealthy for Sensitive Groups, 151–200 Unhealthy, 201–300 Very Unhealthy, 301–500 Hazardous — what each level means and who is at risk.
AQI explained — what 50, 100, 150 actually mean for your lungs
Plain-English guide to the EPA Air Quality Index (AQI) and the 6 categories from Good to Hazardous. When to take precautions and which pollutants matter.
Wildfire Hazard Potential — what the USFS scale means and how to defend your home
Plain-English guide to the USDA Forest Service's Wildfire Hazard Potential 1–5 scale, how to read your community's risk, and concrete home-defense measures.
Full dashboard for ZIP 99503
Wildfire risk is one of twelve dimensions zipradar federates per address. See the full federated summary for ZIP 99503:
Open Anchorage (Spenard), AK dashboard →Frequently asked questions
What is the wildfire risk for ZIP 99503?
Wildfire risk for ZIP 99503 (Anchorage (Spenard), Alaska) is federated from USDA Forest Service. Pages translate the numeric hazard score into plain English, show the exposure type (direct flame contact vs. ember), and link to at-home mitigation resources. Refreshed annual (usfs update) — see /methodology for full source citations and refresh-cadence details.
Where does the wildfire risk data come from?
USDA Forest Service (primary regulator). zipradar federates wildfire risk on the regulator's published cadence: annual (usfs update). Every claim cites the source record; stale data is flagged, never silently served. The primary source URL: https://wildfirerisk.org/.
What are the limitations of wildfire risk data?
Community-level only. The 5-step scale reflects the hazard of the landscape, not property-specific factors like defensible space or construction materials.
Is ZIP 99503 (Anchorage (Spenard)) data current?
Last verified 2026-06-10. Wildfire risk for ZIP 99503 refreshes annual (usfs update) per USDA Forest Service cadence. See the full ZIP dashboard at /zip/99503/ for all 12 dimensions side-by-side.