Ashfall Advisories in Alaska
25 ashfall advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of ashfall advisories reaches back to 2005.
Ashfall Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Ashfall Advisories
- 25
- Busiest year
- 200911 ashfall advisories
- Average year
- 3over 8 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.
By month of the year
Nearby
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. Rebuilt daily.