Clearing skies and a very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range.
Every event with a place to put it; 5 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 very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range.
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 Feb 25, 9:21 PM PST, 4 hours 39 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
5 frost/freeze. Local standard time, as filed.
Reported low temperatures ranged from 22 to 28 degrees.
Reported low temperatures ranged from 30 to 32 degrees.
Reported low temperatures ranged from 14 to 24 degrees.
Reported low temperatures ranged from 14 to 20 degrees.
Reported low temperatures ranged from 7 to 19 degrees.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2011Every state in 2011This day in weather historyWarnings in Oregon, February 2011
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: 278021, 278023, 278024, 278025, 278026.