USGS WaterAlert

[ version 2.3s ] 


National Water Information System

View current and historical streamflow, ground-water level, and water-quality data

Today's Water Conditions

View comparisons of current and historical conditions using maps
Click map to go to current water resources conditions in the U.S.



USGS Water Science Centers are located in each state

News updated Wednesday, 30-Nov-2016 17:25:36 EST

• How to Manage or Cancel Your WaterAlert Subscription

The various actions for managing your WaterAlerts, such as SIGNOFF (i.e. cancel/delete/stop), LIST, PAUSE, or CONTINUE are performed by sending an email to with a Subject of your subscription ID and the action you want to take.

It is not necessary that you recall your subscription ID. To obtain the complete list of actions, with instructions specific to your WaterAlert ID, simply do the following:

  1. Open one of your WaterAlert text or email messages. In it, you will find a unique web link to a set of instructions for managing that subscription. If it is not clickable, copy and paste it into your web browser:
    Text alertEmail alert
    sample text message sample email message
  2. Follow your customized instructions or simply click on the link provided within, for the action you want to take.


You may obtain custom management instructions on
ALL your WaterAlerts by submitting this request:

WaterAlert Management Help
Send WaterAlert Help for...


• Quick Reference Guide

The U.S. Geological Survey Hydrologic Notification Service, WaterAlert,
sends email or text messages when values measured by USGS
data-collection stations exceed user-definable thresholds.

For Realtime Data from NWISWeb:

To Sign up for Notifications:

To manage or obtain information about existing notifications,
send email to with a command followed by your
Subscription ID.

To Delete (signoff) this alert:
  * send email to with Subject: SIGNOFF hni-ZZZZZ
To Pause this or ALL alerts for 5 days:
  * Send email to with Subject: PAUSE hni-ZZZZZ 5
    You can change the 5 in the Subject to          PAUSE ALL hni-ZZZZZ
    your preferred number of days to pause.
To Continue (unpause) this or ALL alerts:
  * Send email to with Subject: CONTINUE hni-ZZZZZ
                                                    CONTINUE ALL hni-ZZZZZ
To List this or ALL settings:
  * Send email to with Subject: LIST hni-ZZZZZ
                                                    LIST ALL hni-ZZZZZ
For Help:
  * Send email to with Subject: HELP hni-ZZZZZ
  * Need a question answered, use this form:        Send help request 
To Change an existing notification frequency
   or threshold:                                    Change settings 
  * Go to and
    subscribe to the same address, site, and 
    parameter.  This will update your subscription
  * Your current settings are:
       Site:      SITE
       Parameter: PARM
       Threshold: THOLD
       Interval:  INTV

Standard text messaging rates may apply (for SMS messages).

Frequently Asked Questions:

• Questions about sites and data?

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Page Contact Information: USGS WaterAlert
Page Last Modified: Thursday, 01-Dec-2016 12:17:02 EST