Alert archive / Coastal Flood Advisories / 2021
Coastal Flood Advisories in the United States, May 2021
48 coastal flood advisories in May 2021. Each alert counts once, however many counties it covered. The archive of coastal flood advisories reaches back to 2005.
Coastal Flood Advisories by state
Each state shaded by its count. Tap a state for its own archive.
- Coastal Flood Advisories
- 48
- Busiest day
- May 29, 20216 coastal flood advisories
Over time
By day
Days in UTC, the clock the archive keeps.
By state
Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.
- North Carolina149
- Maryland86
- Texas81
- District of Columbia67
- South Carolina64
- Virginia42
- New Jersey31
- Washington24
- Florida22
- New York22
- Louisiana21
- California20
- Delaware17
- Maine13
- Connecticut13
- Massachusetts12
- Mississippi11
- Georgia11
- New Hampshire8
- Oregon7
- Alabama6
- Pennsylvania6
- Alaska3
- Puerto Rico2
- Rhode Island1
- U.S. Virgin Islands1
Nearby
Alerts in force nowThe tornado archiveThe radar archive20202022
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.