claritystorm/noaa-storm-events

NOAA Storm Events Database 1950–Present

Every storm event recorded by the NOAA National Centers for Environmental Information (NCEI) since 1950 — cleaned, structured, and linked across 3 relational tables. 1.94 million+ events covering tornadoes, floods, hurricanes, hail, lightning, and 58 other event types across all US states and territories. $662 billion in total documented damage.

This repository contains a 1,000-row sample of the Details table (Public Domain). Full dataset (all 3 tables — Details, Fatalities, Locations — in CSV + Parquet) available at claritystorm.com/datasets/noaa-storm-events.

Quick Start

from datasets import load_dataset
ds = load_dataset("claritystorm/noaa-storm-events")

import pandas as pd
df = pd.read_csv("sample_1000.csv")
print(df["EVENT_TYPE"].value_counts().head(10))
print(df.groupby("YEAR")["DEATHS_TOTAL"].sum())

Schema (Details table, selected fields)

Field	Type	Description
EVENT_ID	int	Unique event identifier (links to fatalities and locations)
EPISODE_ID	int	Episode grouping related events
YEAR	int	Event year (1950–2024)
MONTH_NAME	string	Month name
BEGIN_DATE	string	Begin date (YYYY-MM-DD derived)
END_DATE	string	End date (YYYY-MM-DD derived)
STATE	string	US state name
CZ_TYPE	string	Zone type: C (county), Z (forecast zone), M (marine)
EVENT_TYPE	string	Storm type (Tornado, Flood, Hail, etc.)
DEATHS_DIRECT	int	Direct fatalities
DEATHS_INDIRECT	int	Indirect fatalities
DEATHS_TOTAL	int	Total fatalities (derived)
INJURIES_DIRECT	int	Direct injuries
INJURIES_INDIRECT	int	Indirect injuries
INJURIES_TOTAL	int	Total injuries (derived)
DAMAGE_PROPERTY_USD	float	Property damage in USD (parsed from NOAA strings)
DAMAGE_CROPS_USD	float	Crop damage in USD (parsed from NOAA strings)
TOTAL_DAMAGE_USD	float	Total damage in USD (derived)
MAGNITUDE	float	Storm magnitude (wind speed, hail size, etc.)
BEGIN_LAT	float	Begin latitude
BEGIN_LON	float	Begin longitude
END_LAT	float	End latitude
END_LON	float	End longitude
EPISODE_NARRATIVE	string	Episode description
EVENT_NARRATIVE	string	Event-specific description

Tables in Full Dataset

• details (~1.94M rows) — one row per storm event with type, location, damage, and casualties
• fatalities (~23.8K rows) — one row per fatality with age, sex, and location
• locations (~1.75M rows) — one row per affected location with county and coordinates

All three tables join on EVENT_ID.

Source

NOAA National Centers for Environmental Information (NCEI) — Storm Events Database. NOAA storm events data is a US federal government work in the public domain (17 U.S.C. 105).

Processed by ClarityStorm Data.