# Data Dictionary - US Storm Events - every severe-weather event with damages & casualties (NOAA, 2000→present), cleaned

**Units:** stated per column in the descriptions below (this is a relational table; columns mix units).

| column | type | description |
|---|---|---|
| `event_id` | int | NOAA Storm Events event id (primary key) |
| `episode_id` | int | NOAA episode id (groups related events) |
| `begin_datetime` | str | Event begin time (YYYY-MM-DD HH:MM:SS) |
| `end_datetime` | str | Event end time (YYYY-MM-DD HH:MM:SS) |
| `state` | str | U.S. state (uppercase) |
| `year` | int | Year of the event |
| `event_type` | str | Hazard type (Tornado, Hail, Flash Flood, Winter Storm, …) |
| `cz_name` | str | County/zone name |
| `wfo` | str | NWS Weather Forecast Office id |
| `injuries_direct` | int | Direct injuries |
| `injuries_indirect` | int | Indirect injuries |
| `deaths_direct` | int | Direct deaths |
| `deaths_indirect` | int | Indirect deaths |
| `damage_property_usd` | float | Property damage, parsed to USD |
| `damage_crops_usd` | float | Crop damage, parsed to USD |
| `magnitude` | float | Event magnitude (hail size in inches / wind speed in knots) |
| `magnitude_type` | str | Magnitude type (EG, MG, ES, MS) |
| `tor_f_scale` | str | Tornado F/EF scale (where applicable) |
| `begin_lat` | float | Begin latitude |
| `begin_lon` | float | Begin longitude |
| `source` | str | Report source (e.g. Trained Spotter, Public, Emergency Manager) |

*Source: NOAA National Centers for Environmental Information - Storm Events Database.*