Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake, Volcano, LANDSAT and Water information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted. For more information, please see www.doi.gov/shutdown.
Record Low Flow Map

Map of Record Low 7-day Streamflow

record-low flow map
Explanation
record low with 30+ yr dataRecord low flow with more than 30 years data
record low with 30- yr dataRecord low flow with less than 30 years data
zero flowZero flow sites
Retrieve Previous Map
(No map available prior to 2012-08-24)