Alert archive / Hydrologic Statements

Hydrologic Statements in the United States, 2019

1 hydrologic statements in 2019. Each alert counts once, however many counties it covered. The archive of hydrologic statements reaches back to 2005.

Hydrologic Statements by state

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

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFLPR
Hydrologic Statements
1
Busiest month
September1 hydrologic statements
Busiest day
September 17, 20191 hydrologic statements

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. September 17, 20191hydrologic statements

Nearby

Alerts in force nowThe tornado archiveThe radar archive20182020

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.