USGS WaterAlert
[ version 1.21
]
WATER DATA FOR THE NATION
View current and historical streamflow, groundwater level, and water-quality data
For more data options, explore our data discovery tools.
View maps of current and historical conditions
Subscribe to hydrologic alerts:
WATER SCIENCE SPECIALTIES
USGS Water Science Centers are located in each state
WaterAlert News
March 23, 2012: Temporary outage
- Update: The GEOS-15 (GEOS WEST) satellite has been restored to service as of 11:09 am EDT. Data are again being transmitted.
March 22, 2012: Temporary outage
- A satellite that relays current-conditions information is presently unavailable. This mainly affects western states and there is no present time estimate on when the issue will be resolved. More information will be posted as it becomes available.
February 10, 2012: Temporary outage
- WaterAlert subscriptions will be unavailable, starting today, Friday Feburary 10 from 3:00 PM ET until Sat Feburary 11 8:00 PM ET, due to routine system maintenance.
April 19, 2011: Release of Version 1.2
- Updated Map Interface
- Modified State and Data Type selection - State or Territory and Data Type can now be selected in any order. Also, after initial selections have been made, an additional State can be added to the view, and the Data Type can be changed without having to reset the selections. Up to three States can be displayed at the same time.
- Updated zoom controls - New zoom controls to drag a zoom box (
) and to zoom back to the previous level (
). The zoom controls obscure less of the map view than in the previous version.
- Added overview map control - Overview inset map in the lower-right corner. This can be optionally hidden from the main map view.
- New background map options - Satellite map has been added as an option, and style of the menu has been modified to be consistent with related USGS mapping products.
- Simplified list of available parameters - The general list of available parameters has been simplified to include only those that are available at most locations of a given Data Type. This is to reduce confusion where there are variations of a parameter, or where a parameter is only available at a few sites. In every case, a full list of parameters available for subscription is displayed when an individual site is selected.
- Peak chart - As an aid for choosing an appropriate threshold value, a peak chart is now viewable on the Subscription Form for Gage Height (stage).
- Improved help - Instructions, questions, and more detailed subscription-management help has been consolidated into one location (http://water.usgs.gov/wateralert/help/).
