Alert archive / Dense Fog Advisories

Dense Fog Advisories in the United States, 2010

1,215 dense fog advisories in 2010. Each alert counts once, however many counties it covered. The archive of dense fog advisories reaches back to 2005.

Dense Fog Advisories by state

Each state shaded by its count. Tap a state for its own archive.

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Dense Fog Advisories
1,215
Busiest month
January261 dense fog advisories
Busiest day
January 21, 201028 dense fog advisories

Over time

By month

By state

Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.

9 more states

The busiest days

Days with the most alerts issued, by UTC date.

  1. January 21, 201028dense fog advisories
  2. January 18, 201027dense fog advisories
  3. January 17, 201026dense fog advisories
  4. November 20, 201021dense fog advisories
  5. January 19, 201021dense fog advisories
  6. January 20, 201021dense fog advisories
  7. November 21, 201019dense fog advisories
  8. March 9, 201019dense fog advisories
  9. January 15, 201018dense fog advisories
  10. March 8, 201018dense fog advisories
  11. January 16, 201017dense fog advisories
  12. March 11, 201017dense fog advisories
  13. December 29, 201015dense fog advisories
  14. January 23, 201014dense fog advisories
  15. March 7, 201014dense fog advisories

Nearby

Alerts in force nowThe tornado archiveThe radar archive20092011

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.