Alert archive / Hydrologic Warnings

Hydrologic Warnings in the United States, 2010

2 hydrologic warnings in 2010. Each alert counts once, however many counties it covered. The archive of hydrologic warnings reaches back to 2005.

Hydrologic Warnings by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Hydrologic Warnings
2
Busiest month
June1 hydrologic warnings
Busiest day
October 25, 20101 hydrologic warnings

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 25, 20101hydrologic warnings
  2. June 9, 20101hydrologic warnings

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. Rebuilt daily.