An ice storm began late Nov 9 and continued into Nov 10. It led to power outages and tree damage across 11 counties.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS OAX wrote it up.
An ice storm began late Nov 9 and continued into Nov 10. It led to power outages and tree damage across 11 counties. The maximum ice measurement was 1.06 inches. Counties in colder air received less and significantly more snow with a maximum of 10 inches record.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before the first event at Nov 9, 11:28 PM CST, 1 hour 32 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 ice storm. Local standard time, as filed.
Emergency Manager reported ice and power outages across the county.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2020Every state in 2020This day in weather historyWarnings in Iowa, November 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 928174.