{"uid":"cap_HNnjFU9b-gaD7tr8NMKIE","slug":"nws-weather-alerts-by-us-state-bd28349e","name":"NWS Weather Alerts by US State","description":"Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key.","url":"https://agent402.tools/api/weather-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":["area"],"properties":{"area":{"type":"string","description":"Two-letter US state/territory code, e.g. CA, TX, FL"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["area","count","alerts"],"properties":{"area":{"type":"string"},"count":{"type":"integer"},"alerts":{"type":"array","items":{"type":"object","properties":{"areas":{"type":"string"},"event":{"type":"string"},"onset":{"type":"string"},"expires":{"type":"string"},"headline":{"type":"string"},"severity":{"type":"string"}}}}}}}}}},"responseSchema":{"type":"json","example":{"area":"CA","count":2,"alerts":[{"areas":"…","event":"Red Flag Warning","onset":"2026-06-12T12:00:00-07:00","expires":"…","headline":"…","severity":"Severe"}]}},"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"area":"CA"}}},"response":{"area":"CA","count":20,"alerts":[{"areas":"West Side Mountains north of 198; Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley; Mariposa Madera Foothills; Mariposa-Madera Lower Sierra; Fresno-Tulare Foothills; Fresno-Tulare Lower Sierra; South End Sierra Foothills; Kern River Valley","event":"Heat Advisory","onset":"2026-06-16T10:32:00-07:00","expires":"2026-06-16T18:45:00-07:00","headline":"Heat Advisory issued June 16 at 10:32AM PDT until June 16 at 11:00PM PDT by NWS Hanford CA","severity":"Moderate"},{"areas":"Malibu Coast; Los Angeles County Beaches","event":"Beach Hazards Statement","onset":"2026-06-16T09:44:00-07:00","expires":"2026-06-16T17:45:00-07:00","headline":"Beach Hazards Statement issued June 16 at 9:44AM PDT until June 18 at 3:00AM PDT by NWS Los Angeles/Oxnard CA","severity":"Moderate"},{"areas":"Ventura County Beaches","event":"Beach Hazards Statement","onset":"2026-06-16T09:44:00-07:00","expires":"2026-06-16T17:45:00-07:00","headline":"Beach Hazards Statement issued June 16 at 9:44AM PDT until June 18 at 3:00AM PDT by NWS Los Angeles/Oxnard CA","severity":"Moderate"},{"areas":"Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast","event":"Beach Hazards Statement","onset":"2026-06-16T09:44:00-07:00","expires":"2026-06-16T17:45:00-07:00","headline":"Beach Hazards Statement issued June 16 at 9:44AM PDT until June 18 at 3:00AM PDT by NWS Los Angeles/Oxnard CA","severity":"Moderate"},{"areas":"Malibu Coast; Los Angeles County Beaches","event":"Coastal Flood Advisory","onset":"2026-06-16T09:44:00-07:00","expires":"2026-06-16T17:45:00-07:00","headline":"Coastal Flood Advisory issued June 16 at 9:44AM PDT until June 17 at 2:00AM PDT by NWS Los Angeles/Oxnard CA","severity":"Minor"},{"areas":"San Bernardino and Riverside County Valleys-The Inland Empire; Riverside County Mountains; Santa Ana Mountains and Foothills; Coachella Valley; San Gorgonio Pass Near Banning","event":"Air Quality Alert","onset":"2026-06-16T06:50:00-07:00","expires":"2026-06-17T07:00:00-07:00","headline":"Air Quality Alert issued June 16 at 6:50AM PDT by NWS San Diego CA","severity":"Unknown"},{"areas":"San Francisco","event":"Beach Hazards Statement","onset":"2026-06-16T04:18:00-07:00","expires":"2026-06-16T21:00:00-07:00","headline":"Beach Hazards Statement issued June 16 at 4:18AM PDT until June 18 at 5:00AM PDT by NWS San Francisco CA","severity":"Moderate"},{"areas":"North Bay Interior Valleys; San Francisco Bay Shoreline","event":"Coastal Flood Advisory","onset":"2026-06-16T04:18:00-07:00","expires":"2026-06-16T21:00:00-07:00","headline":"Coastal Flood Advisory issued June 16 at 4:18AM PDT until June 18 at 5:00AM PDT by NWS San Francisco CA","severity":"Minor"},{"areas":"San Francisco","event":"Coastal Flood Advisory","onset":"2026-06-16T04:18:00-07:00","expires":"2026-06-16T21:00:00-07:00","headline":"Coastal Flood Advisory issued June 16 at 4:18AM PDT until June 18 at 5:00AM PDT by NWS San Francisco CA","severity":"Minor"},{"areas":"Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast","event":"Beach Hazards Statement","onset":"2026-06-16T04:18:00-07:00","expires":"2026-06-16T21:00:00-07:00","headline":"Beach Hazards Statement issued June 16 at 4:18AM PDT until June 18 at 5:00AM PDT by NWS San Francisco CA","severity":"Moderate"},{"areas":"Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast","event":"Coastal Flood Advisory","onset":"2026-06-16T04:18:00-07:00","expires":"2026-06-16T21:00:00-07:00","headline":"Coastal Flood Advisory issued June 16 at 4:18AM PDT until June 17 at 5:00AM PDT by NWS San Francisco CA","severity":"Minor"},{"areas":"Northern Lake","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Northwestern and Central Trinity","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Northeastern Trinity","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Northeastern Interior Mendocino","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Southern Trinity","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Northeastern Interior Humboldt","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Interior Del Norte","event":"Heat Advisory","onset":"2026-06-16T03:48:00-07:00","expires":"2026-06-16T12:00:00-07:00","headline":"Heat Advisory issued June 16 at 3:48AM PDT until June 16 at 10:00PM PDT by NWS Eureka CA","severity":"Moderate"},{"areas":"Northern Coastal Humboldt","event":"Coastal Flood Advisory","onset":"2026-06-16T23:00:00-07:00","expires":"2026-06-16T10:00:00-07:00","headline":"Coastal Flood Advisory issued June 16 at 1:47AM PDT until June 17 at 3:00AM PDT by NWS Eureka CA","severity":"Minor"},{"areas":"Central Siskiyou County; South Central Siskiyou County","event":"Heat Advisory","onset":"2026-06-15T23:13:00-07:00","expires":"2026-06-16T09:00:00-07:00","headline":"Heat Advisory issued June 15 at 11:13PM PDT until June 16 at 11:00PM PDT by NWS Medford OR","severity":"Moderate"}],"source":"api.weather.gov (NWS, public domain)"}},"exampleRequest":{"area":"CA"},"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NHaku7ZF0oYotHVaDjEfB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns active National Weather Service alerts for a given US state as structured JSON, including event type, severity, headline, affected areas, and onset/expiry times.","exampleAgentPrompt":"Pull all active National Weather Service alerts for Texas right now — give me the event type, severity, headline, affected areas, and when each alert starts and expires.","exampleUseCases":null,"resultDescription":"A JSON array of active NWS alert objects for the specified US state, each containing: event type (e.g. 'Tornado Warning'), severity level, human-readable headline, list of affected areas/counties, and onset/expiry timestamps. Data is sourced live from the US government with no API key required.","failureModes":["Invalid or unrecognized state code returns an error or empty result","No active alerts for the state returns an empty array","NWS upstream API downtime may cause failures or stale data","Missing required 'area' query parameter returns a 400-level error"],"whenToPreferThis":"Use this endpoint when you need real-time, structured US government weather alert data for a specific state without requiring an API key. Ideal for monitoring active severe weather events, building safety dashboards, or triggering automations based on NWS alert activity. Prefer over scraping NWS directly since this returns clean JSON.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:49:03.768Z","isFirstParty":false,"canonicalSlug":"nws-weather-alerts-by-us-state-bd28349e"}