{"uid":"cap_zpxBoWzFH4lrZKVbaRst2","slug":"x402-factory-hurricane-tropical-storm-alert-endpoint-8a087c21","name":"x402-factory Hurricane & Tropical Storm Alert Endpoint","description":"Active and forecast hurricane and tropical storm risk (NWS + model) — Active NWS alerts filtered to hurricane and tropical storm hazards for any US point, with model-based risk context. Same shape as /v1/alerts/severe with the hazard class fixed to hurricane and tropical storm.","url":"https://x402-factory.com/v1/alerts/hurricane","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"lat":{"type":"number","maximum":90,"minimum":-90},"lon":{"type":"number","maximum":180,"minimum":-180},"state":{"type":"string","pattern":"^[A-Za-z]{2}$","maxLength":2,"minLength":2}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["data","meta"],"properties":{"data":{"type":"object","required":["active","model_risk"],"properties":{"active":{"type":"array","items":{"type":"object","required":["event","severity","headline","onset","expires","source"],"properties":{"event":{"type":"string"},"onset":{"type":"string"},"source":{"type":"string","const":"NWS"},"expires":{"type":"string"},"headline":{"type":"string"},"severity":{"type":"string"}},"additionalProperties":false}},"model_risk":{"type":"array","items":{"type":"object","required":["hazard","window_start","window_end","probability"],"properties":{"hazard":{"type":"string"},"window_end":{"type":"string"},"probability":{"type":"number","maximum":1,"minimum":0},"window_start":{"type":"string"}},"additionalProperties":false}}},"additionalProperties":false},"meta":{"type":"object"}}}}}}},"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_nSN4NbIFSUka67JPGc5os","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 hurricane and tropical storm alerts plus model-based probability forecasts for a given US location or state.","exampleAgentPrompt":"Are there any active NWS hurricane or tropical storm warnings right now for Miami, Florida — latitude 25.77, longitude -80.19 — and what does the model say about the probability of a tropical hazard in the coming days?","exampleUseCases":[{"title":"Coastal evacuation decision support","prompt":"Check if there are any active NWS hurricane or tropical storm alerts for the Louisiana coast — use lat 29.95, lon -90.07 — and tell me the model-based probability of a hurricane hazard in the next window so I can decide whether to issue an evacuation notice."},{"title":"Travel safety check before hurricane season trip","prompt":"I'm heading to Tampa, Florida next week — lat 27.95, lon -82.46. Can you pull any active NWS hurricane or tropical storm warnings for that area and tell me what the forecast models say about storm risk?"},{"title":"State-wide tropical storm monitoring for emergency managers","prompt":"Pull all active NWS hurricane and tropical storm alerts for the entire state of Florida right now, along with any model-based risk probabilities, so I can brief the state emergency operations center."}],"resultDescription":"Returns two arrays: 'active' (active NWS alerts filtered to hurricane/tropical storm hazards, each with event name, severity, headline, onset, expiration, and NWS source) and 'model_risk' (model-based forward-looking hazard entries with hazard type, time window start/end, and probability 0–1), plus a metadata object.","failureModes":["Missing or invalid lat/lon or state code returns an error or empty alert list","No active NWS hurricane alerts returns an empty 'active' array (not an error)","Model risk array may be empty if no model-based forecast data is available for the queried location","Out-of-range lat/lon values (e.g. outside US coverage) may return empty results or an error","Payment failure (x402) results in a 402 response before data is returned"],"whenToPreferThis":"Choose this endpoint when you specifically need hurricane and tropical storm hazard data — both real-time NWS official alerts and model-based probability forecasts — for a US point or state, without needing to filter from a broader severe weather feed. It is purpose-built for tropical cyclone risk and returns only hurricane/tropical storm hazards, making it more precise than the general severe alerts endpoint for this use case.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:58:52.400Z","isFirstParty":false}