A low pressure system moved from Wyoming across Nebraska to northwest Missouri and produced snow across northeast Nebraska and Southwest Iowa. 5 inch in Pottawattamie County to 2 inches in Monona County.
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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.
A low pressure system moved from Wyoming across Nebraska to northwest Missouri and produced snow across northeast Nebraska and Southwest Iowa. Snowfall amounts were light ranging from less than 0.5 inch in Pottawattamie County to 2 inches in Monona County.
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 Apr 18, 2:02 AM CST, 1 hour 58 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
In Harrison County, snowfall ranged from 0.5 to 2 inches. An observer reported 2 inches of snow near Little Sioux, IA.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2018Every state in 2018This day in weather historyWarnings in Iowa, April 2018
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 2026-09-30. Each event’s entry at NCEI: 754879.