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USGS WaterAlert

[ version 2.3 ] 

USGS WaterAlert, Help

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
To Change an existing notification frequency
   or threshold                                     Change settings 
  * go to and
    subscribe to the same site and parameter.
    This will update your subscription settings.


Email and Text messages are not designed for paging and as such are not
time sensitive; there can be delays in the receipt notifications depending
on the routing.

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

Frequently Asked Questions:

      version 2.3


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

WaterAlert Management Help
Send WaterAlert Help for...