1 hail, as filed by the National Weather Service.
Every event with a place to put it. 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 Portland,OR radar (KRTX), 22 km away, was scanning. The volume nearest the first event began at 00:05 UTC.
1 hail. Local standard time, as filed.
A small airplane pilot near Hillsboro reported brief quarter sized (one inch) hail at a little after 4 PM PST. The report was confirmed by a call to McMinnville Flight Service Station.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 1998Every state in 1998This day in weather historyWarnings in Oregon, May 1998
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: 5648509.