Alert archive / Oregon / Multnomah County
Dense Fog Advisories in Multnomah County, Oregon
29 dense fog advisories since 1986. An alert counts here when it covered this county. The archive of dense fog advisories reaches back to 2005.
Multnomah County and its neighbors
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Dense Fog Advisories
- 29
- Busiest year
- 202512 dense fog advisories
- Average year
- 10over 3 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
The latest dense fog advisories
The most recent on file, newest first.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 27, 3:35 AM PST | Dense Fog Advisory | PQR | 8 hr |
| Feb 25, 5:32 AM PST | Dense Fog Advisory | PQR | 6 hr |
| Feb 10, 1:05 AM PST | Dense Fog Advisory | PQR | 7 hr |
| Jan 14, 12:05 PM PST | Dense Fog Advisory | PQR | 21 hr |
| Jan 13, 2:56 PM PST | Dense Fog Advisory | PQR | 21 hr |
| Jan 12, 2:45 PM PST | Dense Fog Advisory | PQR | 23 hr |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.