Alert archive / Flood Watches / 2009
Flood Watches in the United States, March 2009
32 flood watches in March 2009. Each alert counts once, however many counties it covered. The archive of flood watches reaches back to 2005.
Flood Watches by state
Each state shaded by its count. Tap a state for its own archive.
- Flood Watches
- 32
- Busiest day
- March 7, 20095 flood watches
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.
- Virginia33
- Georgia29
- North Carolina26
- West Virginia22
- New York21
- Pennsylvania18
- Maryland18
- Michigan17
- Ohio17
- Tennessee17
- Indiana15
- Kansas15
- Alaska13
- Washington13
- Illinois13
- Florida12
- Maine11
- Kentucky11
- Connecticut9
- Wyoming9
- South Carolina9
- Missouri9
- New Hampshire8
- Alabama8
- South Dakota8
- Vermont8
- New Jersey6
- Texas6
- Oklahoma6
- Idaho5
- Massachusetts5
- Iowa5
- Delaware5
- District of Columbia5
- Oregon4
- Minnesota4
- Louisiana4
- Arkansas4
- California3
- Montana3
Nearby
Alerts in force nowThe tornado archiveThe radar archive20082010
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.