Check active NWS weather alerts before applying pressure-washing/soft-washing chemicals, to avoid spraying during high-wind or freeze warnings
domain: weather.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Determine the job site's point location or applicable NWS forecast zone.
Query the alerts web service for currently active watches/warnings/advisories covering that area, returned in Common Alerting Protocol (CAP) v1.2 format.
Parse the alert event type and severity (e.g. High Wind Warning, Freeze Warning) to decide whether chemical application should be delayed.
For near-real-time tracking, poll the ATOM index feed for active alerts rather than re-requesting full CAP messages repeatedly.
Re-check alerts immediately before dispatching the crew each morning, since alerts can be issued or cancelled overnight.
Known gotchas
Alerts are jurisdiction/zone based, not a simple lat/lon radius; map the job site to the correct NWS zone or county to avoid missing a relevant warning.
As with the forecast endpoints, a descriptive User-Agent header is required to avoid 403 responses.
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