{"uid":"cap_ZavXAMaZnJNE0CsG2ey9D","slug":"us-national-weather-service-active-alerts-by-state-or-location-9e2b6bf3","name":"US National Weather Service Active Alerts by State or Location","description":"US National Weather Service active alerts by state or lat/lon - event, severity, urgency, affected areas, expiry and instructions for warnings and watches","url":"https://saylorinnovations.com/api/weather/us-alerts?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["state"],"properties":{"limit":{"type":"string","description":"optional 1-50 (default 20)"},"state":{"type":"string","description":"Two-letter US state code (or give lat and lon instead)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["scope","alerts"],"properties":{"scope":{"type":"object","description":"Scope the result covers"},"alerts":{"type":"array","description":"Active alerts"},"source":{"type":"string","description":"Data source the values come from"},"total_active":{"type":"number","description":"Total active"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Kqy9Q2QExF2qLNbCYXX89","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns active NWS weather alerts (warnings, watches, advisories) for a US state or lat/lon coordinate, including event type, severity, urgency, affected areas, expiry, and safety instructions.","exampleAgentPrompt":"Are there any active NWS weather alerts or warnings in Texas right now? Show me up to 20 results.","exampleUseCases":[{"title":"Storm warning check before outdoor event","prompt":"Check if there are any active NWS weather warnings or watches in Florida — I need to know about severe thunderstorm or tornado alerts before planning anything outdoors."},{"title":"Emergency alert monitoring for travel","prompt":"I'm driving through Oklahoma tomorrow — can you pull all current active weather alerts for Oklahoma from the National Weather Service so I know what to expect?"},{"title":"Hyperlocal alert lookup by coordinates","prompt":"What active weather alerts are there right now near latitude 40.7128, longitude -74.0060? I want to see event type, severity, and any safety instructions."}],"resultDescription":"Returns a JSON object with a scope descriptor, an array of active NWS alerts (each containing event name, severity, urgency, affected areas/zones, expiry timestamp, and public safety instructions), a data source label, and a count of total active alerts matching the query.","failureModes":["Invalid or missing state code returns an error","Lat/lon outside the US may return no alerts or an error","Limit value outside 1-50 range may be rejected or clamped","No active alerts returns an empty alerts array with total_active of 0","NWS upstream outage may cause timeout or empty response"],"whenToPreferThis":"Use this endpoint when you need real-time, official US National Weather Service alert data for a specific state or geographic coordinate. Prefer it for emergency preparedness workflows, travel safety checks, or any automation that needs structured alert metadata (severity, urgency, expiry, affected zones) rather than raw forecast text. It is especially useful when you need to filter or display alerts programmatically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:31:42.419Z","isFirstParty":false,"canonicalSlug":"us-national-weather-service-active-alerts-by-state-or-location-9e2b6bf3"}