{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.tornado","code":"thing-q8081","url":"https://ver.cy/models/thing/q8081/","name":"tornado","alternateNames":["waterspout","landspout","anticyclonic tornado","multiple-vortex tornado","satellite tornado","skipping tornado"],"kind":"thing","status":"published","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.ACT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A rapidly rotating column of air extending from a thunderstorm to the ground, the most violent of atmospheric vortices, rated on the Enhanced Fujita scale by damage, in forms including multiple-vortex tornadoes, satellite tornadoes orbiting a larger one, rare anticyclonic tornadoes rotating opposite to the usual direction, skipping tornadoes that lift and touch down, and landspouts and waterspouts that form over land or water often without a rotating parent storm. People under a tornado warning should follow official alerts and move to shelter immediately.","purpose":"Let an agent explain tornadoes and their forms, relay formation, rating, forecasting and climatology from meteorological agencies, describe the forms the registry aliases name, and distinguish tornadoes from dust devils, gustnadoes, downbursts and hurricanes, routing live warnings to official alerts and shelter first.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Ground-contact vortex","Thunderstorm related","Damage-based rating","Short warning times"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a tornado is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a tornado, and how does it differ from dust devils, gustnadoes, downbursts and hurricanes?","kind":"definition"},{"text":"Is there a tornado warning now, in which case the user should follow official alerts and take shelter immediately?","kind":"boundary"}]}]},{"id":"forms","name":"Forms","description":"Forms.","findings":[{"id":"forms-finding","name":"Forms","description":"Forms.","questions":[{"text":"What are multiple-vortex, satellite, anticyclonic and skipping tornadoes, landspouts and waterspouts?","kind":"definition"},{"text":"Which entry fits the specific form?","kind":"action"}]}]}]},{"id":"science","name":"Science","description":"Science.","layers":[{"id":"formation","name":"Formation","description":"Formation.","findings":[{"id":"formation-finding","name":"Formation","description":"Formation.","questions":[{"text":"How do supercells and other storms produce tornadoes, and what remains unknown?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"rating","name":"Rating","description":"Rating and measurement.","findings":[{"id":"rating-finding","name":"Rating","description":"Rating.","questions":[{"text":"How are tornadoes rated on the Fujita and Enhanced Fujita scales and measured by radar?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"safety","name":"Safety","description":"Safety.","layers":[{"id":"warnings","name":"Warnings","description":"Watches and warnings.","findings":[{"id":"warnings-finding","name":"Warnings","description":"Warnings.","questions":[{"text":"What do tornado watches and warnings mean, and how are they issued?","kind":"provenance"},{"text":"Which entry fits severe weather warning?","kind":"action"}]}]},{"id":"shelter","name":"Shelter","description":"Shelter guidance.","findings":[{"id":"shelter-finding","name":"Shelter","description":"Shelter.","questions":[{"text":"What shelter guidance do official agencies give for homes, schools and vehicles?","kind":"provenance"},{"text":"Which entry fits storm shelter?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Climatology and history.","layers":[{"id":"climate","name":"Climate","description":"Climatology.","findings":[{"id":"climate-finding","name":"Climate","description":"Climate.","questions":[{"text":"Where do tornadoes occur worldwide, and what do studies say about trends, with findings attributed?","kind":"provenance"},{"text":"Which entry fits Tornado Alley?","kind":"action"}]}]},{"id":"history","name":"History","description":"Notable events.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"What are notable tornadoes and outbreaks, such as the 1974 Super Outbreak?","kind":"provenance"},{"text":"Which entry fits the specific event?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain tornadoes and the Enhanced Fujita scale, citing meteorological services.","Relay official tornado watches and warnings exactly as issued.","Tell people to follow official shelter guidance in a warning."],"mustNot":["Advise people to chase, film or approach a tornado.","Downplay or contradict an official warning.","Issue its own tornado warnings to the public as if it were the authority.","Rate a tornado's strength before the official damage survey."],"requiresHuman":["Sending responders or drones into an active storm area."]},"ethics":{"considerations":["Warnings save lives only if people trust them; false alarms and false reassurance both kill.","Damage falls hardest on people in weak housing such as mobile homes."],"affectedParties":["People in the warned area","Residents of mobile homes","Emergency responders"]},"owners":{"steward":"Nobody owns the weather; national meteorological services issue warnings and record events.","roles":[],"masterSystems":["National severe weather event databases"]},"relations":[{"target":"Q1192097","type":"parent","note":"registry parent class"},{"target":"Q1277161","type":"parent","note":"registry parent class"},{"target":"Q16332653","type":"parent","note":"registry parent class"},{"target":"Q6823473","type":"parent","note":"registry parent class"},{"target":"Q732722","type":"parent","note":"registry parent class"},{"target":"extreme weather event","type":"related","note":"in registry terms"},{"target":"whirlwind","type":"related","note":"in registry terms"},{"target":"Enhanced Fujita scale","type":"related"},{"target":"supercell","type":"related","note":"thunderstorms"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.tornado","Wikidata: Q8081 (https://www.wikidata.org/wiki/Q8081)"]},"properties":{"applicability":"not-applicable","items":["US tornadoes per year: about 1200 count - average","Enhanced Fujita scale: EF0 to EF5 note - since 2007 in US","highest measured winds: about 480 km/h - Bridge Creek-Moore, 1999, radar","typical lifetime: minutes to over an hour note"]},"recognition":{"applicability":"optional","items":["Violently rotating column of air reaching the ground","Multiple-vortex, satellite, anticyclonic and skipping tornadoes; landspouts; waterspouts","Dust devils form in fair weather; gustnadoes are gust-front whirls; downbursts are straight-line winds; hurricanes are large cyclones","A funnel or debris cloud connecting a storm base to the ground."]},"capabilities":{"applicability":"required","items":["route live warnings first","explain formation and forms","relay rating and forecasting","distinguish related phenomena"]},"hazards":{"applicability":"required","items":["Ignoring warnings","Debris injuries and structural collapse","Confusing tornadoes with other windstorms"]},"interfaces":{"applicability":"required","items":["National weather service watch and warning systems","Building codes and safe room standards such as FEMA P-361"]},"context":{"applicability":"required","items":["Not applicable; a weather phenomenon.","supercell tornadoes","multiple-vortex and satellite tornadoes","anticyclonic tornadoes","landspouts","waterspouts","tornado outbreaks"]}},"sources":[{"title":"Wikidata item Q8081: tornado","url":"https://www.wikidata.org/wiki/Q8081","note":"identity and sense of the item"},{"title":"Wikipedia: Tornado","url":"https://en.wikipedia.org/wiki/Tornado","note":"general description of the item"}],"openQuestions":["Should waterspout and landspout be separate primary entries?","How should meteorological agency sources be linked?","The registry entry has merged aliases naming forms; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q8081/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q8081/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T15:53:26Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:02+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties."},"score":1.0}}