Clearing skies and a cold air mass allowed temperatures to drop below freezing over south Central Oregon east of the Cascades.
Every event with a place to put it; 3 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 MFR wrote it up.
Clearing skies and a cold air mass allowed temperatures to drop below freezing over south Central Oregon east of the Cascades.
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 Medford, OR wrote its last area forecast discussion before the first event at Sep 13, 1:56 PM PST, 12 hours 4 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
3 frost/freeze. Local standard time, as filed.
Reported low temperatures ranged from 26 to 32 degrees.
The only reported low temperature in this zone was 24 degrees in Chemult.
Reported low temperatures in this zone ranged from 24 to 36 degrees.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2018Every state in 2018This day in weather historyWarnings in Oregon, September 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 2026-10-01. Each event’s entry at NCEI: 773865, 773866, 773867.