Snowstorms

Ohio River Snow Storm of 2004

December 20 to 24, 2004 · Category 4, Crippling in the Ohio Valley

This storm was a Cat 4 for the Ohio Valley Region and a Cat 2 for the Upper Midwest Region. Heavy snow fell from southern Illinois to Lake Erie. There were reported snowfall rates of 4 inches an hour. Southern Indiana felt the worst of the storm with some areas reporting over two feet of snow. In the Louisville, KY area, thunder snow and thunder sleet were reported. Farther to the south the storm brought significant accumulations of freezing rain including a report of a 1.5 inches.

What the offices filed during it

Winter weather episodes east of the Rockies from the day before the storm began to the day after it ended, colored by kind.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live map with snow on the ground

The storm by region

Each region’s thresholds are its own, so the same depth of snow counts for more in the South than in the Northeast.

RegionIndexCategoryArea with snow (sq mi)People under snowAbove the top threshold (sq mi)People above it
Ohio Valley11.31Category 4, Crippling236,94343,981,8825,814887,702
Upper Midwest4.17Category 2, Significant250,51323,818,4381,57625,817
South0.63Below category 1172,48015,952,12700
Northeast0.06Below category 156,5748,523,81100

The Regional Snowfall Index is NOAA’s ranking of snowstorms east of the Rockies by how much snow fell, over how wide an area and on how many people, region by region: the area and the population above four snowfall thresholds set for each region, weighted against that region’s own history. A storm is scored in each region it reached, on a scale from 1, notable, to 5, extreme.

The toll the offices filed

Events
1,028
Deaths
5
Injuries
110
Damage
$105 million
Episodes
126

Every winter weather episode the Weather Service filed east of the Rockies in these dates. A few may belong to another system on the same days. Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Episode by episode

More

The snowstorm of February 26 to 28, 2004The snowstorm of January 1 to 7, 2005Snow nowEvery winter storm filed

Sources

NOAA NCEI Regional Snowfall Index, and the Storm Events Database for the episodes.