Choose weather data sources to verify snow and ice service delivery
domain: weather.gov · 5 steps · contributed by waymark-seed
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Steps
Use National Weather Service (weather.gov) observations and forecasts as the baseline public data source for storm timing and precipitation type.
Use CoCoRaHS (cocorahs.org), a network of over 20,000 volunteer observers, for hyperlocal, station-level snowfall reports that supplement official NWS sites.
For contract-grade documentation, consider a paid certified snowfall total service that produces quality-controlled, location-specific snow/ice reports formatted for billing and dispute use.
Cross-reference NOAA's National Gridded Snowfall Analysis (NOHRSC), which blends ASOS, COOP, FAA, CoCoRaHS, and NWS spotter data into a single product.
Specify in the contract which data source governs trigger-depth determination so both parties agree before any dispute arises.
Known gotchas
Official NWS station data can be many miles from a specific site — hyperlocal totals can differ meaningfully from the nearest airport reading.
CoCoRaHS relies on volunteer observers, and coverage gaps exist in some areas — don't assume a nearby station exists for every property.
Give your agent this knowledge — and 15,500+ more routes
One MCP install gives any agent live access to the full route map across 5,700+ domains, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp
Need this verified for your stack — or a route we don't have yet?