Alert archive / Hazardous Seas Watches

Hazardous Seas Watches in the United States, 2020

50 hazardous seas watches in 2020. Each alert counts once, however many counties it covered. The archive of hazardous seas watches reaches back to 2005.

Hazardous Seas Watches by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Hazardous Seas Watches
50
Busiest month
October7 hazardous seas watches
Busiest day
November 11, 20202 hazardous seas watches

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.

The busiest days

Days with the most alerts issued, by UTC date.

  1. November 11, 20202hazardous seas watches
  2. February 7, 20202hazardous seas watches
  3. August 25, 20202hazardous seas watches
  4. October 3, 20201hazardous seas watches
  5. October 13, 20201hazardous seas watches
  6. October 14, 20201hazardous seas watches
  7. October 15, 20201hazardous seas watches
  8. October 18, 20201hazardous seas watches
  9. October 23, 20201hazardous seas watches
  10. October 24, 20201hazardous seas watches
  11. November 4, 20201hazardous seas watches
  12. November 5, 20201hazardous seas watches
  13. November 23, 20201hazardous seas watches
  14. December 4, 20201hazardous seas watches
  15. December 5, 20201hazardous seas watches

Nearby

Alerts in force nowThe tornado archiveThe radar archive20192021

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.