Alert archive / Hazardous Seas Watches

Hazardous Seas Watches in the United States, 2018

20 hazardous seas watches in 2018. 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
20
Busiest month
December4 hazardous seas watches
Busiest day
October 8, 20181 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. October 8, 20181hazardous seas watches
  2. October 26, 20181hazardous seas watches
  3. November 7, 20181hazardous seas watches
  4. November 30, 20181hazardous seas watches
  5. December 6, 20181hazardous seas watches
  6. December 10, 20181hazardous seas watches
  7. December 21, 20181hazardous seas watches
  8. December 23, 20181hazardous seas watches
  9. January 9, 20181hazardous seas watches
  10. January 13, 20181hazardous seas watches
  11. February 10, 20181hazardous seas watches
  12. March 21, 20181hazardous seas watches
  13. April 7, 20181hazardous seas watches
  14. April 19, 20181hazardous seas watches
  15. April 29, 20181hazardous seas watches

Nearby

Alerts in force nowThe tornado archiveThe radar archive20172019

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.